Machining positioning device and machining system for brake caliper casting

Abstract

The utility model 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. According to the utility model, 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 utility model relates to mechanical processing technical field especially is a kind of processing positioning device and processing system of brake caliper casting. BACKGROUND

[0002] Brake caliper is the action transmission part in hump vehicle speed reducer, and is used in hump marshalling station, is when train car marshalling, important force part for train car speed reduction, the gravity of train car downward is transmitted to brake caliper by other parts.

[0003] Referring to Figure 1 As shown, for a finished brake caliper 100, the left end top is provided with caliper arm (i.e. arm) 105, the top of caliper arm 105 is used to set brake rail in speed reducer;Caliper arm 105 right rear, provided with brake rail contact facade 102;

[0004] Brake caliper 100 is provided with a main shaft mounting cylinder 106 below caliper arm 105;Main shaft mounting cylinder 106 is provided with main shaft hole 103 longitudinally;The right end bottom surface of brake caliper 100 is tail bottom surface 104;

[0005] For brake caliper, caliper arm upper surface 101 of caliper arm 105, brake rail contact facade 102 close to caliper arm 105, and main shaft hole 103 and tail bottom surface 104, are all related to component assembly and whole machine action, therefore, need to be machined to meet the dimensional accuracy and position accuracy requirements of workpiece, to ensure assembly accuracy.

[0006] Among them, main shaft hole 103 is the reference for processing other three planes (i.e. caliper arm upper surface 101 of caliper arm 105, brake rail contact facade 102 and tail bottom surface 104), it needs to be explained that the processing procedure of main shaft hole 103 is carried out in subsequent using other processing technology, and the utility model does not involve.

[0007] Since brake caliper blank is casting, the surface quality is poor (such as surface roughness, roughness is big), in order to obtain finished brake caliper 100, brake caliper casting needs to be milled, and the specific requirements are: the caliper arm upper surface 101 of caliper arm 105 and brake rail contact facade 102 are milled, so that the surface of the two faces is smooth, and the quality of the surface is improved, to obtain finished brake caliper (it needs to be explained that the processing procedure of tail bottom surface 104 is carried out using other processing technology, and tail plane 104 has been processed in advance, and the utility model does not involve).

[0008] It needs to be explained that brake caliper casting (i.e. brake caliper blank) is basically the same as finished brake caliper 100, the difference is only that: the caliper arm upper surface 101 of caliper arm 105 and brake rail contact facade 102 are milled, the surface quality of the two faces is poor, the surface is rough, and the others are the same.

[0009] The processing procedure requires that the brake caliper casting is positioned based on the main shaft hole 103, and then the processing operation of the two surfaces of the upper surface 101 of the caliper arm 105 and the brake rail contact vertical surface 102 is performed.

[0010] However, there is no device that can position the brake caliper casting to be processed based on the main shaft hole 103 and ensure the positioning accuracy. Content of the utility model

[0011] The utility model aims at the technical defects in the prior art, and provides a processing positioning device and processing system for brake caliper castings.

[0012] Therefore, the utility model provides a processing positioning device for brake caliper castings, which comprises a clamping body.

[0013] The top of the clamping body is vertically provided with a vertical plate distributed transversely at the front and back ends.

[0014] The upper part of the left end of the two vertical plates is longitudinally provided with a pressing limiting pin and a pressing screw, respectively.

[0015] The pressing screw is located in front of the pressing limiting pin.

[0016] The opposite ends of the pressing limiting pin and the pressing screw are provided with a pressing disc, respectively.

[0017] The upper part of the right end of the two vertical plates is longitudinally provided with a tight screw, respectively.

[0018] The middle part of the front and back ends of the clamping body is vertically provided with a third double-headed bolt, respectively.

[0019] The two third double-headed bolts are located on the side direction opposite to the two vertical plates.

[0020] The upper part of the two third double-headed bolts is fixedly connected with the front and back ends of the vertically distributed pressing plate, respectively.

[0021] The top of the clamping body is provided with a V-shaped block and a limiting block at the left and right ends.

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

[0023] The front and back ends of the clamping body are vertically provided with a supporting seat, respectively.

[0024] The upper part of each supporting seat is provided with a first adjustable supporting part.

[0025] In addition, the utility model further provides a processing system for brake caliper castings, which comprises the processing positioning device for brake caliper castings as described above and a milling machine.

[0026] A milling machine is used to perform multi-stage milling of the upper surface of the brake caliper arm and the contact surface of the brake rail of a brake caliper casting using face milling cutters.

[0027] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides a machining positioning device and machining system for brake caliper castings. The design is scientific and can use the spindle hole as a reference to position the brake caliper casting to be machined, ensuring the positioning accuracy. This facilitates further machining operations on the upper surface of the caliper arm and the contact surface of the brake rail, ensuring the quality of machining and having significant practical significance.

[0028] It should be noted that, for this utility model, considering the concentricity between the spindle mounting cylinder (i.e., the outer circle of the spindle hole) and the spindle hole, the spindle mounting cylinder (i.e., the outer circle of the spindle hole) is used for positioning, which can reduce the difficulty of positioning and clamping the device.

[0029] In addition, this utility model guides the tail of the brake caliper by using a slot limiting method to ensure the verticality of its arm (caliper arm). Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a finished brake caliper;

[0031] Figure 2 A three-dimensional structural diagram of a machining positioning device for brake caliper castings provided by this utility model, showing the brake caliper casting to be machined already installed. Figure 1 ;

[0032] Figure 3 A three-dimensional structural diagram of a machining positioning device for brake caliper castings provided by this utility model, showing the brake caliper casting to be machined already installed. Figure 2 ;

[0033] Figure 4a A front view of a machining and positioning device for a brake caliper casting provided by this utility model, in which the brake caliper casting to be machined has been installed;

[0034] Figure 4b A top view of a machining and positioning device for a brake caliper casting provided by this utility model, in which the brake caliper casting to be machined has been installed;

[0035] Figure 4c A left view of a machining and positioning device for a brake caliper casting provided by this utility model, in which the brake caliper casting to be machined has been installed;

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

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

[0038] Figure 6b A left-side sectional view of a V-shaped block in a machining and positioning device for a brake caliper casting provided by this utility model;

[0039] Figure 6c A top view of a V-shaped block in a machining and positioning device for a brake caliper casting provided by this utility model;

[0040] Figure 6d This is a three-dimensional structural diagram of a V-shaped block in a machining and positioning device for a brake caliper casting provided by this utility model.

[0041] Figure 7 A cross-sectional view of the limiting block in a machining and positioning device for a brake caliper casting provided by this utility model;

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

[0043] Figure 9 A top view of the clamping limit pin in a machining and positioning device for a brake caliper casting provided by this utility model;

[0044] Figure 10 A top view of the clamping screw in a machining and positioning device for a brake caliper casting provided by this utility model;

[0045] In the diagram: 1-clamp body, 2-V-block, 3-limit block, 4-inspection block, 5-support base;

[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 studded bolt, 122-Second studded bolt, 13-Locking key, 14-Pressure plate, 15-Third studded bolt;

[0048] 16 - Shoulder-mounted hex nut; 17 - Hex nut (M24); 18 - Internal hex screw (M12×40); 19 - First nut (M20); 20 - Second nut (M30); 21 - Second screw (M6×16);

[0049] 22-U-shaped groove. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] See Figures 1 to 3 , Figures 4a to 4c , Figure 5 , Figures 6a to 6d , Figures 7 to 10 This utility model provides a machining and positioning device for brake caliper castings, including a clamping body 1;

[0055] At the top front and rear ends of the clamp body 1, there is a horizontally distributed vertical plate 1-0 respectively.

[0056] On the upper left end of the two upright plates 1-0, a clamping limit pin 6 and a clamping screw 10 are respectively longitudinally installed;

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

[0058] A pressure plate 7 is provided at the opposite end (i.e., the inner end) of the clamping limit pin 6 and the clamping screw 10;

[0059] On the upper right end of each of the two upright plates 1-0, a set screw 11 is longitudinally installed.

[0060] At the midpoint of the front and rear ends of the clamp body 1, a third double-headed bolt 15 is vertically installed;

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

[0062] The upper parts of the two third double-headed bolts 15 are fixedly connected to the front and rear ends of the longitudinally distributed pressure plates 14, respectively.

[0063] V-shaped blocks 2 and limiting blocks 3 are respectively provided at the top left and right ends of the clamp body 1;

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

[0065] On the top of the clamping body 1, an inspection block 4 is fixedly installed on both the front and rear sides of the V-shaped block 2;

[0066] At the front and rear ends (specifically, the middle part on the left side) of the clamp body 1, a support base 5 is vertically installed;

[0067] Each support 5 has a first adjustable support part 8 on its upper part.

[0068] In this utility model, the V-block 2 is used to support the lower part of the main shaft mounting cylinder 106 (i.e. the outer circle part of the main shaft hole 103) of the brake caliper casting 100-0 that needs to be positioned.

[0069] Brake caliper casting 100-0 is laterally distributed;

[0070] The limiting block 3, which is equipped with the second adjustable support part 9, is used to limit the right end of the brake caliper casting 100-0.

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

[0072] In this utility model, the opposite sides of the two pressure plates 7 abut against the front and rear sides of the main shaft mounting cylinder 106 (i.e., the outer circle of the main shaft hole 103) of the brake caliper casting 100-0.

[0073] The two set screws 11 are positioned opposite each other, and their front and rear sides abut against the right end of the brake caliper casting 100-0, respectively.

[0074] In practice, the diameter of the pressure plate 7 is smaller than the diameter of the spindle mounting cylinder 106 (i.e., the outer diameter of the spindle hole) of the brake caliper casting 100-0, but larger than the diameter of the spindle hole 103.

[0075] In this utility model, the two first adjustable support parts 8 respectively abut (i.e., are in close contact with each other) the front and rear ends of the lower groove 1050 of the brake caliper arm 105 (i.e., the arm).

[0076] In this utility model, the pressure plate 14 abuts against the top of the middle section of the brake caliper casting 100-0 (i.e., they are in close contact).

[0077] In this utility model, a first double-headed bolt 121 is longitudinally passed through the lower left end of the two upright plates 1-0;

[0078] A second double-headed bolt 122 runs longitudinally through the middle of the right end of the two upright plates 1-0;

[0079] It should be noted that the first double-ended bolt 121 and the second double-ended bolt 122 are used to fix the two upright plates 1-0, thereby enhancing the overall structural strength of the device of this utility model.

[0080] For specific implementation details, see [link to implementation details]. Figure 2 , Figure 3 The front and rear ends of the first double-ended bolt 121 are respectively threadedly fixed to a hexagonal nut 17;

[0081] The hexagonal nut 17 abuts against the side of the adjacent vertical plate 1-0 (i.e., they are in tight contact);

[0082] In practice, the front and rear ends of the second double-ended bolt 122 are respectively threaded and fixedly connected to a hexagonal nut 17;

[0083] The hexagonal nut 17 abuts against the side of the adjacent vertical plate 1-0 (i.e., they are in tight contact);

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

[0085] In this utility model, specifically, two U-shaped grooves 22 with front and back symmetry are respectively provided on the left and right sides of the clamping body 1;

[0086] In this utility model, specifically, a positioning key 13 is provided on the middle section of the left and right sides of the clamping body 1;

[0087] The positioning key 13 is connected to the external worktable via the second screw 21 (which is a common T-screw).

[0088] It should be noted that, for this utility model, the device of this utility model can be installed on the workbench with the help of the second screw 21 (which is a common T-screw).

[0089] In this utility model, see Figure 5 As shown, the top left and right ends 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 practice, the V-block 2 is fixed in the middle of the first groove 1a by multiple (e.g., four) internal hexagon screws 18.

[0093] In practice, the two inspection blocks 4 are fixed to the front and rear of the first groove 1a on the top of the clamping body 1 by two internal hex screws 18.

[0094] For specific implementation details, see [link to implementation details]. Figure 5 As shown, the second groove 1b is a long, narrow groove;

[0095] In practice, the limiting block 3 is fixed to the second groove 1b by multiple (e.g., two) internal hexagon screws 18.

[0096] In this utility model, see Figure 5 Each of the front and rear ends (specifically the middle left side) of the clamp body 1 is provided with a support mounting hole 50.

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

[0098] Each support 5 has a first adjustable support part 8 on its upper part;

[0099] In practice, each support base 5 has an internal threaded hole with a top opening at the top.

[0100] The screw at the lower part of the first adjustable support part 8 is threadedly connected to the threaded hole inside the support seat;

[0101] It should be noted that, for this utility model, the top height of the first adjustable support part 8 can be adjusted by adjusting the depth of the screw of the first adjustable support part 8 into the threaded hole of the support base.

[0102] Furthermore, the screw at the lower part of the first adjustable support 8 is also threadedly connected to a hexagonal nut 17, the bottom surface of which abuts against the top surface of the support base 5 (i.e., they are in tight contact).

[0103] For specific implementation details, see [link to implementation details]. Figure 5 The support mounting hole 50 is circular in shape;

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

[0105] The connecting column is located within the mounting hole 50 of the support base;

[0106] Furthermore, the mounting hole 50 of the support base and the connecting post at the bottom of the support base 5 have a transition fit. In this utility model, see... Figure 5 At the middle of the front and rear ends of the clamp body 1, there is a third double-headed bolt mounting hole 150 (internal thread hole);

[0107] Each third double-ended bolt mounting hole 150 is threadedly fixed to the lower end of a vertically distributed third double-ended bolt 15;

[0108] Furthermore, the lower end of the third double-ended bolt 15 is also threadedly fixed 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 tight contact).

[0110] For specific implementation details, see [link to implementation details]. Figure 2 , Figure 3 The upper part of the third double-headed bolt 15 located at the rear is threadedly fixed to 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 tight contact).

[0112] In practice, the upper part of the third double-ended bolt 15 located at the front is threadedly fixed to a shouldered hexagonal nut 16;

[0113] The bottom surface of the shouldered hexagonal nut 16 abuts against the top surface of the pressure plate 14 (i.e., they are in tight contact).

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

[0115] The third double-ended bolt 15, located at the front, is pushed vertically through the bolt into the opening groove 140;

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

[0117] In this utility model, see Figure 5 On the upper left end of each of the two upright plates 1-0, a vertical plate hole 1-01 and a nut 1-011 are respectively provided through it longitudinally.

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

[0119] A clamping limit pin 6 is provided through hole 1-01 in the upright plate;

[0120] The vertical plate hole 1-01 is transitionally fitted with the clamping limit pin 6;

[0121] Nut 1-011 is threadedly connected to a clamping screw 10;

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

[0123] Each of the second vertical plate threaded holes 1-02 is threadedly connected to a set screw 11;

[0124] In practice, the clamping limit pin 6 and the clamping screw 10 are set in a corresponding manner at the front and back.

[0125] In this utility model, a second adjustable support part 9 is provided on the upper right end of the limiting block 3.

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

[0127] The screw at the lower part of the second adjustable support 9 is threadedly connected to the threaded hole 301 in the limit block;

[0128] It should be noted that, for this utility model, the top height of the second adjustable support 9 can be adjusted by adjusting the depth to which the screw of the second adjustable support 9 is screwed into the threaded hole 301 of the limit block.

[0129] Furthermore, the screw at the lower part of the second adjustable support 9 is also threadedly connected to a hexagonal nut 17, the bottom surface of which abuts against the top surface of the limiting block 3 (i.e., they are in tight contact).

[0130] In this invention, specifically, the upper plane height of the second adjustable support 9 is the same as the top surface height of the two inspection blocks 4, and they are 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 9 is designed to accommodate different castings. Furthermore, the upper surface of the second adjustable support 9 is a concave circular surface, which is also to reduce the contact area and prevent the roughness of the casting from affecting machining.

[0132] In this utility model, specifically, support plates are provided on the front and rear sides of the V-shaped block 2;

[0133] The upper part of the two support plates is provided with longitudinally distributed working support grooves 202;

[0134] Between the two support plates, there is a horizontally distributed, upward-opening protrusion groove 201;

[0135] The protrusion protrudes from the groove 201 to accommodate the protrusion 1030 of the spindle mounting sleeve 106 (i.e., the outer circle portion of the spindle hole 103) of the brake caliper casting 100-0.

[0136] The working support groove 202 abuts (closely contacts) the lower part of the spindle mounting cylinder 106 (i.e. the outer circle part 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 circle portion of the spindle hole 103).

[0138] The longitudinal width of the protrusion exposed in the groove 201 is smaller than the longitudinal width of the spindle mounting cylinder 106 (i.e., the outer circle 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-block 2 are respectively provided with through holes for the first double-ended bolt 121 to pass through at positions corresponding to the first double-ended bolt 121.

[0140] In this utility model, specifically, a workpiece passage groove 302 is provided at the top left end of the limiting block 3;

[0141] The workpiece passes through the groove 302 to pass laterally through the right end of the brake caliper casting 100-0; the second adjustable support 9 at the top of the limiting block 3 contacts the bottom surface 104 of the tail at 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 limiting block 3 was milled down to create a clearance, and only the second adjustable support part 9 abuts against the bottom surface 104 of the tail of the brake caliper casting 100-0.

[0143] In a specific implementation, the right end of the bottom surface 104 of the tail of the brake caliper casting 100-0 also abuts against the upper plane of the second adjustable support part 9 (i.e., they are in close contact).

[0144] Based on the above-mentioned processing and positioning device for brake caliper casting provided by this utility model, this utility model also provides a processing system for brake caliper casting, which includes the processing and positioning device for brake caliper casting as described above, and a milling machine.

[0145] A milling machine is used to perform multi-stage milling on the upper surface 101 of the brake arm and the contact surface 102 of the brake rail of the brake caliper casting 100-0, so that the two surfaces are machined into smooth surfaces and the surface quality is improved.

[0146] In this utility model, specifically, a milling machine refers to a machine tool that uses a milling cutter to process multiple surfaces of a workpiece. It is a well-known and mature existing mechanical processing equipment, and will not be described in detail here.

[0147] To better understand the technical solution of this utility model, the working process of this utility model is described below.

[0148] First, Figure 4a The upper surface of the second adjustable support 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 spindle 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 spindle hole 103 of the brake caliper casting 100-0, and is used as a reference.

[0150] It should be noted that, through the adjustment of the second adjustable support 9, the center point height of the spindle hole 103 of the brake caliper casting 100-0 can be 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 main shaft mounting cylinder 106 (i.e. the outer circle of the main shaft hole 103) of the brake caliper casting 100-0 abuts against the working support groove 202 on the upper part of the V-block 2 in the device of this utility model. At the same time, the tail bottom surface 104 of the brake caliper casting 100-0 falls into the workpiece passage groove 302 of the limiting block 3, and the tail bottom surface 104 of the brake caliper casting 100-0 abuts against the upper plane of the second adjustable support part 9.

[0152] At the same time, the pressure plate 7 located at the rear of the device is positioned towards the rear side of the brake caliper casting 100-0, abutting against the rear side of the main shaft mounting cylinder 106 (i.e., the outer circumference of the main shaft hole 103) of the brake caliper casting 100-0, see [reference]. Figure 4a As shown.

[0153] Then, adjust the two first adjustable support parts 8 in the device of this utility model so that the upper plane of the first adjustable support part 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 they are on a longitudinal straight line, the clamping operation can be performed. Specifically, first tighten the clamping screw 10 located at the front so that the two pressure plates 7 cooperate with each other, and bring the front and rear sides of the main shaft mounting cylinder 106 (i.e., the outer circle part of the main shaft hole 103) of the brake caliper casting 100-0 abut against each other. Then, clamp the front and rear sides of the right end (i.e., the tail) of the brake caliper casting 100-0 simultaneously with the two set screws 11. Figure 4c The rotation of the pressure plate 14 abuts against the top of the middle section of the brake caliper casting 100-0. The shouldered hexagonal nut 16 is rotated downward until the pressure plate 14 abuts against the top of the middle section of the brake caliper casting 100-0, thus completing the clamping operation of the brake caliper casting 100-0 to be processed.

[0154] Then, start the milling machine and use a face milling cutter to mill the upper surface 101 of the arm (arm 105) of the workpiece to be machined (i.e., the brake caliper casting 100-0) and the brake rail contact surface 102 near the arm in multiple passes, so that the two surfaces are machined into smooth surfaces, improving the surface quality, and obtaining a brake caliper 1 with the upper surface 101 of the arm and the brake rail contact surface 102 machined.

[0155] Compared with the prior art, the machining and positioning device for brake caliper castings provided by this utility model has the following advantages:

[0156] 1. This utility model can use V-block 2 to position the spindle mounting cylinder 106 (i.e. the outer circle of the spindle hole 103). With this positioning, the upper surface 101 of the clamp arm 105 and the contact surface 102 of the brake rail can be machined, which helps to ensure the relative machining dimensions and form and position tolerances of the workpiece.

[0157] 2. By applying this utility model, the scribing process for workers can be reduced, which is conducive to further realizing the processing operation of brake calipers and improving processing efficiency.

[0158] 3. By applying this utility model, the processing problem of brake caliper castings has been solved. This utility model has a reasonable structure, is convenient and quick to operate, and has accurate and reliable processing precision, which greatly improves work efficiency.

[0159] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A machining and positioning device for a brake caliper casting, characterized in that, Including the clamping body (1); At the front and rear ends of the top of the clamping body (1), there is a horizontally distributed vertical plate (1-0) respectively; On the upper left end of the two upright plates (1-0), a clamping limit pin (6) and a clamping screw (10) are respectively longitudinally inserted. The 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); On the upper right end of each of the two upright plates (1-0), a set screw (11) is longitudinally inserted. At the midpoint of the front and rear ends of the clamping body (1), a third double-headed bolt (15) is vertically installed; Two third double-ended bolts (15) are located on opposite sides of the two upright plates (1-0); The upper parts of the two third double-headed bolts (15) are fixedly connected to the front and rear ends of the longitudinally distributed pressure plates (14), respectively; V-shaped blocks (2) and limiting blocks (3) are respectively provided at the top left and right ends of the clamping body (1); The V-shaped block (2) and the limiting block (3) are located between the two upright plates (1-0); At the front and rear ends of the clamp body (1), a support base (5) is vertically installed respectively; Each support base (5) has a first adjustable support part (8) on its upper part.

2. The machining and positioning device for brake caliper castings as described in claim 1, characterized in that, V-block (2) is used to support the lower part of the spindle mounting cylinder (106) of the brake caliper casting (100-0) that needs to be positioned; The limiting block (3) with the second adjustable support (9) is used to limit the right end of the brake caliper casting (100-0); The second adjustable support (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 castings as described in claim 1, characterized in that, The two pressure plates (7) are positioned opposite each other, and their front and rear sides abut against the main shaft mounting sleeve (106) of the brake caliper casting (100-0). The two set screws (11) are positioned opposite each other and abut against the front and rear sides of the right end of the brake caliper casting (100-0); The two first adjustable support parts (8) abut 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 castings as described in claim 1, characterized in that, A first double-headed bolt (121) runs longitudinally through the lower left end of the two upright plates (1-0); A second double-headed bolt (122) runs longitudinally through the middle of the right end of the two upright plates (1-0); The front and rear ends of the first double-ended bolt (121) are respectively threaded and fixed to a hexagonal nut (17); The front and rear ends of the second double-ended bolt (122) are respectively threaded and fixed to a hexagonal nut (17); The first double-ended bolt (121) and the second double-ended bolt (122) have the same shape and structure; And / or, On the top of the clamping body (1), a check block (4) is fixedly installed on the front and back 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-block (2), check that the top height of the check block (4) is the same as the center point height of the spindle hole (103) of the brake caliper casting (100-0).

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

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

7. The machining and positioning device for brake caliper castings as described in claim 1, characterized in that, A third double-headed bolt mounting hole (150) is provided at the middle of the front and rear ends of the clamp body (1); Each third double-ended bolt mounting hole (150) is threadedly fixed to the lower end of a vertically distributed third double-ended bolt (15); The upper part of the third double-ended bolt (15) located at the rear is threadedly fixed to the two first nuts (19); The bottom surface of the first nut (19) located below abuts against the top surface of the pressure plate (14); The upper part of the third double-ended bolt (15) located at the front is threadedly fixed to a shouldered hexagonal nut (16); The bottom surface of the shouldered hexagonal nut (16) abuts against the top surface of the pressure plate (14); The pressure plate (14) is provided with a bolt push-in opening groove (140) at a position corresponding to the third double-headed bolt (15) located in front; The third double-ended bolt (15) located at the front is pushed vertically through the bolt into the opening groove (140).

8. The machining and positioning device for brake caliper castings as described in claim 1, characterized in that, On the upper left end of each of the two upright plates (1-0), a vertical plate hole (1-01) and a nut (1-011) are respectively provided through it longitudinally; Nut (1-011) is located in front of hole (1-01) in the vertical plate; A clamping limit pin (6) is installed through the hole (1-01) in the vertical plate; The nut (1-011) is threadedly connected to a clamping screw (10); Each of the two vertical plates (1-0) has a second vertical plate threaded hole (1-02) longitudinally penetrating its upper right end; Each second vertical plate threaded hole (1-02) is threadedly connected to a set screw (11); And / or, A second adjustable support part (9) is provided on the upper right end of the limiting block (3); The upper right end of the limiting block (3) is provided with a limiting block internal thread hole (301) with a top opening; The screw at the lower part of the second adjustable support (9) is threadedly connected to the threaded hole (301) inside 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 (9).

9. The machining and positioning device for brake caliper castings as described in any one of claims 1 to 8, characterized in that, Support plates (200) are provided on the front and rear sides of the V-shaped block (2); The upper part of the two support plates (200) is provided with longitudinally distributed working support grooves (202); Between the two support plates, there is a horizontally distributed, upward-opening protrusion groove (201); The protrusion protrudes from the groove (201) for accommodating the protrusion (1030) on the left side of the spindle mounting cylinder (106) of the brake caliper casting (100-0); The working support groove (202) abuts against the lower part of the spindle mounting sleeve (106) of the brake caliper casting (100-0); The longitudinal width of the protrusion (1030) is smaller than the longitudinal width of the spindle mounting cylinder (106); The longitudinal width of the protrusion exposed in the groove (201) is smaller than the longitudinal width of the spindle mounting cylinder (106).

10. A machining system for brake caliper castings, characterized in that, The invention includes a machining and positioning device for a brake caliper casting as described in any one of claims 1 to 9, and a milling machine; A milling machine is used to perform multi-stage milling on the upper surface (101) of the brake caliper arm and the contact surface (102) of the brake rail of the brake caliper casting (100-0) using a face milling cutter.

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