Press fitting device for piston assembly of automobile brake device

Abstract

The utility model belongs to the technical field of automobile spare part manufacturing, and provides a press fitting device for a piston assembly of an automobile brake device. The first positioning assembly is arranged on the rack and used for positioning and fixing the brake caliper; the press-fitting assembly is used for press-fitting the piston assembly into the brake caliper, and comprises a press-fitting part which is arranged on the rack in a sliding manner and is provided with a bearing surface for placing the piston assembly; the first driving device is used for driving the press-fitting piece to move so as to press the piston assembly placed on the bearing surface into the brake caliper; and the second positioning assembly is arranged on the rack and is used for positioning the piston assembly placed on the bearing surface, so that the piston assembly can be accurately pressed into the brake caliper. The press-fitting device for the piston assembly of the automobile brake device is simple in structure, reasonable in design and high in press-fitting efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile spare parts manufacturing, and particularly relates to a pressing device for a piston assembly of an automobile braking device. Background Art

[0002] The piston assembly of an automobile braking device includes a piston and a screw nut mechanism (i.e., Spindle Nuts System, abbreviated as "SNS") installed on the piston. During the assembly of the automobile braking device, it is necessary to press the brake piston assembly into the brake caliper. However, in the pressing process of the existing pressing device, the brake piston assembly usually deflects, so that the SNS does not correspond to the holes on the brake caliper, resulting in installation failure, thereby reducing the installation efficiency. At the same time, due to the deflection of the brake piston assembly, the brake piston assembly and the brake caliper are not aligned, and during the pressing process, it is also easy to damage the brake piston assembly and the brake caliper, etc. Summary of the Utility Model

[0003] Aiming at the defects in the prior art, the purpose of the utility model is to provide a pressing device for a piston assembly of an automobile braking device to alleviate or solve the above technical problems existing in the prior art.

[0004] To achieve the above purpose, the utility model provides a pressing device for a piston assembly of an automobile braking device, including:

[0005] A frame;

[0006] A first positioning component, which is arranged on the frame and is used for positioning and fixing the brake caliper;

[0007] A pressing component, which is arranged on the frame and is used for pressing the piston assembly into the brake caliper, and includes:

[0008] A pressing member, which is slidably arranged on the frame and has a bearing surface for placing the piston assembly; and

[0009] A first driving device, which is used for driving the pressing member to move so as to press the piston assembly placed on the bearing surface into the brake caliper; and

[0010] A second positioning component, which is arranged on the frame and is used for positioning the piston assembly placed on the bearing surface so that the piston assembly can be accurately pressed into the brake caliper.

[0011] Further, the first positioning component includes:

[0012] A positioning fixture for fixing the brake caliper, which is provided with a sliding part, and the machine frame is provided with a positioning chute adapted to the sliding part. A first limiting wall for limiting the positioning fixture is provided at the first end of the positioning chute, and an opening for the sliding part to slide in or out is provided at the second end; and

[0013] A limit pin, which is slidably connected to the machine frame and has a first position and a second position. When it is in the first position, it is separated from the positioning fixture so that the positioning fixture can slide along the positioning chute. When it is in the second position, it abuts against the positioning fixture to limit the positioning fixture at the first end of the positioning chute.

[0014] Further, a turntable is provided on the machine frame, and a plurality of the positioning chutes are provided on the turntable, and the plurality of positioning chutes are evenly arranged around the rotation center line of the turntable.

[0015] Further, the second positioning assembly includes:

[0016] A first positioning unit, which is provided on the machine frame and is used for positioning the initial position of the SNS of the piston assembly; and

[0017] A second positioning unit, which is provided on the machine frame and is used for positioning the SNS of the piston assembly during the press-fitting process.

[0018] Further, the first positioning unit includes:

[0019] A positioning jaw, which has a third position and a fourth position and includes:

[0020] Two oppositely arranged jaw bodies that can perform opening and closing movements. On the opposite side of the two jaw bodies, there are V-shaped grooves for positioning the SNS of the piston assembly; and

[0021] A second driving device, which is provided on the machine frame and is used for driving the two jaw bodies to perform opening and closing movements; and

[0022] A third driving device, which is provided on the machine frame and is used for driving the positioning jaw to reciprocate between the third position and the fourth position.

[0023] Further, the second positioning unit includes:

[0024] A positioning rod, which is provided on the machine frame and is slidably connected to the machine frame and has a fifth position and a sixth position;

[0025] A fourth driving device, which is used for driving the positioning rod to perform reciprocating linear motion between the fifth position and the sixth position;

[0026] Wherein, when the fourth driving device drives the positioning rod from the fifth position to the sixth position, one end of the positioning rod passes through the hole on the brake caliper and can be inserted into the hole of the SNS of the piston assembly in the initial position;

[0027] And during the press-fitting process, the fourth driving device drives the positioning rod to move from the sixth position to the fifth position, and makes the moving speed of the positioning rod synchronized with the moving speed of the piston assembly.

[0028] Furthermore, the second positioning unit further includes a sliding sleeve, the sliding sleeve is fixedly arranged on the frame, and the positioning rod is slidably inserted into the sliding sleeve.

[0029] Furthermore, a positioning groove is arranged on the bearing surface.

[0030] Furthermore, the inner diameter of the positioning groove is larger than the outer diameter of the piston assembly.

[0031] Advantages of the present utility model:

[0032] The press-fitting device for the piston assembly of the vehicle brake device provided by the present utility model achieves the purpose of enabling the piston assembly to be smoothly installed into the brake caliper by arranging the first positioning component and the second positioning component, and further achieves the purpose of improving the press-fitting efficiency. Description of the drawings

[0033] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0034] Figure 1 It is a perspective view of the press-fitting device for the piston assembly of the vehicle brake device provided by an embodiment of the present utility model;

[0035] Figure 2 For Figure 1 The enlarged view of part A shown;

[0036] Figure 3 For Figure 1 The enlarged view of part B shown;

[0037] Figure 4 For Figure 3 The enlarged view of part C shown.

[0038] Reference numerals:

[0039] 100. Frame; 110. Turntable; 111. Positioning chute; 210. Pressing part; 211. Positioning groove; 310. Positioning fixture; 320. Limit pin; 410. Claw body; 411. V-shaped groove; 420. Second driving device; 430. Third driving device; 440. Positioning rod; 450. Fourth driving device; 460. Sliding sleeve; 500. Brake caliper; 600. Piston assembly; 610. SNS. Detailed implementation mode

[0040] The embodiments of the technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0041] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should be the ordinary meanings understood by those skilled in the art to which the present utility model belongs.

[0042] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 a limitation of the present utility model.

[0043] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0046] As Figures 1-4 shown, the present utility model provides a press-fitting device for a piston assembly of an automotive braking device, comprising a frame 100, a first positioning assembly, a press-fitting assembly and a second positioning assembly.

[0047] The first positioning assembly is arranged on the frame 100 and is used for positioning and fixing the brake caliper 500. Specifically, in use, the first positioning assembly is used to accurately position and fix the brake caliper 500 at the press-fitting station, so that the piston assembly 600 can be smoothly and accurately press-fitted into the brake caliper 500.

[0048] The press-fitting assembly is arranged on the frame 100 and is used for press-fitting the piston assembly 600 into the brake caliper 500. The press-fitting assembly comprises a press-fitting member 210 and a first driving device (not shown in the drawings).

[0049] The press-fitting member 210 is slidably arranged on the frame 100 and has a bearing surface for placing the piston assembly 600. In use, the piston assembly 600 is placed on the bearing surface. Preferably, a positioning groove 211 is arranged on the bearing surface for preliminarily positioning the piston assembly 600. Preferably, the inner diameter of the positioning groove 211 is larger than the outer diameter of the piston assembly 600, so as to facilitate placing the piston assembly 600 into the positioning groove 211.

[0050] The first driving device is used to drive the press-fitting member 210 to move so as to press-fit the piston assembly 600 placed on the bearing surface into the brake caliper 500. Specifically, the first driving device comprises one of a cylinder, a hydraulic cylinder, an electric push rod or a linear electric cylinder. In this embodiment, the first driving device is an electric push rod, which is fixedly installed on the frame 100, and the power output shaft of the electric push rod is fixedly connected to the press-fitting member 210.

[0051] The second positioning assembly is arranged on the frame 100 and is used for positioning the piston assembly 600 placed on the bearing surface so that the piston assembly 600 can be accurately pressed into the brake caliper 500.

[0052] In one embodiment, the first positioning component includes a positioning jig 310, a limit pin 320, and a first driving device 330.

[0053] The positioning jig 310 is used to fix the brake caliper 500. In use, the brake caliper 500 to be press-fitted is fixed on the positioning jig 310. The positioning jig 310 is provided with a sliding portion. Preferably, sliding portions are provided on both opposite sides of the positioning jig 310. A positioning chute 111 adapted to the sliding portion is provided on the frame 100. A first limiting wall for limiting the positioning jig 310 is provided at the first end of the positioning chute 111, and an opening for the sliding portion to slide in or out is provided at the second end. In use, the positioning jig 310 fixed with the brake caliper 500 to be press-fitted is slid into the positioning chute 111 from the second end and slides towards the first end of the positioning chute 111. When the positioning jig 310 slides to abut against the first limiting wall, it means that the positioning jig 310 has slid to the press-fitting station.

[0054] The limit pin 320 is slidably arranged on the frame. The limit pin has a first position and a second position. When the limit pin 320 is in the first position, the limit pin 320 is separated from the positioning jig 310 so that the positioning jig 310 can slide along the positioning chute 111. When the limit pin 320 is in the second position, the limit pin 320 abuts against the positioning jig 310 to limit the positioning jig 310 at the first end of the positioning chute 111. Preferably, a limit hole (not shown in the drawings) cooperating with the limit pin 320 is provided on the positioning jig 310.

[0055] In use, after the positioning jig 310 fixed with the brake caliper 500 to be press-fitted is slid from the second end to the first end of the positioning chute 111, the limit pin 320 is inserted into the limit hole, and the purpose of fixing the positioning jig 310 at a preset position can be achieved.

[0056] Preferably, a turntable 110 is rotatably arranged on the frame 100. A plurality of positioning chutes 111 are formed on the turntable 110. The plurality of positioning chutes 111 are uniformly arranged around the rotation center line of the turntable 110. By providing a plurality of positioning chutes 111, the brake caliper 500 to be press-fitted can be placed on the turntable 110 at one station, and the press-fitted brake caliper 500 can be unloaded from the turntable 110 at another station to achieve the purpose of improving efficiency.

[0057] In one embodiment, the second positioning component includes a first positioning unit and a second positioning unit.

[0058] The first positioning unit is arranged on the rack 100 and is used to position the initial position of the SNS 610 of the piston assembly 600. Specifically, after the piston assembly 600 is placed on the press-fitting part 210, under the action of the first positioning unit, the initial position of the SNS 610 of the piston assembly 600 can be accurately positioned.

[0059] Specifically, the first positioning unit includes a positioning jaw and a third driving device 430.

[0060] The positioning jaw has a third position and a fourth position. Specifically, when the positioning jaw is in the third position, the positioning jaw is away from the piston assembly 600 placed on the press-fitting part 210, so as to achieve the purpose that the piston assembly 600 can pass through smoothly; when the positioning jaw is in the fourth position, the positioning jaw corresponds to the SNS 610 of the piston assembly 600 placed on the press-fitting part 210, so as to achieve the purpose of clamping the SNS 610 of the piston assembly 600. The positioning jaw includes a jaw body 410 and a second driving device 420.

[0061] There are two jaw bodies 410. The two jaw bodies 410 are arranged oppositely and can perform an opening and closing movement. A V-shaped groove 411 for positioning the SNS 610 of the piston assembly 600 is arranged on the opposite side of the two jaw bodies 410. The second driving device 420 is arranged on the rack 100 and is used to drive the two jaw bodies 410 to perform an opening and closing movement. The third driving device 430 is arranged on the rack 100 and is used to drive the positioning jaw to reciprocate between the third position and the fourth position. Specifically, the third driving device 430 includes one of a cylinder, a hydraulic cylinder, an electric push rod, and a linear electric cylinder. In this embodiment, the third driving device 430 is a linear electric cylinder. The linear electric cylinder is fixedly installed on the rack 100, and the power output shaft of the linear electric cylinder is fixedly connected to the second driving device 420.

[0062] During use, the third driving device 430 drives the positioning jaw from the third position to the fourth position, so that the positioning jaw corresponds to the SNS 610 of the piston assembly 600 placed on the press-fitting part 210; then, the second driving device 420 drives the two jaw bodies 410 to close, and under the action of the V-shaped groove 411, the purpose of positioning the SNS 610 of the piston assembly 600 is achieved.

[0063] The second positioning unit is arranged on the rack 100 and is used to position the SNS 610 of the piston assembly 600 during the press-fitting process, so that the SNS 610 of the piston assembly 600 can be smoothly and accurately press-fitted into the corresponding holes on the brake caliper 500.

[0064] Specifically, the second positioning unit includes a positioning rod 440 and a fourth driving device 450.

[0065] The positioning rod 440 is arranged on the frame 100, and the positioning rod 440 is slidably connected to the frame 100. Specifically, a sliding sleeve 460 is fixedly installed on the frame 100, and the positioning rod 440 is slidably inserted into the sliding sleeve 460. The positioning rod 440 has a fifth position and a sixth position.

[0066] The fourth driving device 450 is used to drive the positioning rod 440 to perform a reciprocating linear motion between the fifth position and the sixth position. Wherein, when the fourth driving device 450 drives the positioning rod 440 from the fifth position to the sixth position, one end of the positioning rod 440 passes through the hole on the brake caliper 500 and can be inserted into the hole of the SNS 610 of the piston assembly 600 in the initial position.

[0067] During the press-fitting process, the fourth driving device 450 drives the positioning rod 440 to move from the sixth position to the fifth position, and makes the moving speed of the positioning rod 440 synchronized with the moving speed of the piston assembly 600, so as to achieve the purpose of positioning the piston assembly 600, and further achieve the purpose of smoothly and accurately press-fitting the SNS 610 of the piston assembly 600 into the corresponding hole on the brake caliper 500.

[0068] Specifically, the fourth driving device 450 includes one of a cylinder, a hydraulic cylinder, an electric push rod, and a linear electric cylinder. In this embodiment, the fourth driving device 450 is an electric push rod.

[0069] The working principle of the present utility model:

[0070] When in use, first, the positioning jig 310 fixing the brake caliper 500 to be press-fitted is slid from the second end to the first end of the positioning chute 111, and then the limit pin 320 is inserted into the limit hole, so as to fix the positioning jig 310 at the preset position. After that, the positioning jig 310 fixing the brake caliper 500 to be press-fitted moves to the press-fitting station as the turntable 110 rotates.

[0071] Afterwards, place the piston assembly 600 to be press-fitted onto the press-fitting part 210; then, the third driving device 430 drives the positioning jaws from the third position to the fourth position, so that the positioning jaws correspond to the SNS 610 of the piston assembly 600 placed on the press-fitting part 210; afterwards, the second driving device 420 drives the two jaw bodies 410 to close, and under the action of the V-shaped groove 411, the purpose of positioning the SNS 610 of the piston assembly 600 is achieved, so that the SNS 610 of the piston assembly 600 corresponds to the positioning rod 440; afterwards, the fourth driving device 450 drives the positioning rod 440 from the fifth position to the sixth position, so that one end of the positioning rod 440 is inserted into the hole of the SNS 610 of the piston assembly 600 in the initial position. Afterwards, the second driving device 420 drives the two jaw bodies 410 to open, and then, the third driving device 430 drives the positioning jaws from the fourth position to the third position.

[0072] Afterwards, the first driving device drives the press-fitting part 210 to move for the press-fitting operation. During this process, the fourth driving device 450 drives the positioning rod 440 to move from the sixth position to the fifth position, and makes the moving speed of the positioning rod 440 synchronize with the moving speed of the piston assembly 600, so as to achieve the purpose of positioning the piston assembly 600, and further achieve the purpose of enabling the piston assembly 600 to be smoothly and accurately press-fitted into the corresponding hole on the brake caliper 500.

[0073] After the press-fitting is completed, the first driving device drives the press-fitting part 210 to return to the initial position, and the fourth driving device 450 drives the driving rod back to the fifth position.

[0074] The turntable 110 rotates, so that the press-fitted brake caliper 500 moves to the blanking station. At the same time, the next positioning fixture 310 with the brake caliper 500 to be press-fitted moves to the press-fitting station, and the positioning chute 111 without the positioning fixture 310 moves to the loading station.

[0075] Continue the above steps to achieve the purpose of continuous press-fitting.

[0076] In the description of the present utility model, a large number of specific details are described. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A press-fitting device for a piston assembly of an automotive braking device, characterized in that, Comprising: A frame (100); A first positioning component, which is arranged on the frame (100) and is used for positioning and fixing a brake caliper (500); A press-fitting component, which is arranged on the frame (100) and is used for press-fitting a piston assembly (600) into the brake caliper (500), and it includes: A press-fitting member (210), which is slidably arranged on the frame (100) and has a bearing surface for placing the piston assembly (600); and A first driving device, which is used for driving the press-fitting member (210) to move so as to press-fit the piston assembly (600) placed on the bearing surface into the brake caliper (500); and A second positioning component, which is arranged on the frame (100) and is used for positioning the piston assembly (600) placed on the bearing surface so that the piston assembly (600) can be accurately pressed into the brake caliper (500).

2. The press-fitting device for the piston assembly of the automotive braking device according to claim 1, wherein, The first positioning component includes: A positioning jig (310), which is used for fixing the brake caliper (500), is provided with a sliding part, and a positioning sliding groove (111) adapted to the sliding part is arranged on the frame (100). A first limiting wall for limiting the positioning jig (310) is arranged at the first end of the positioning sliding groove (111), and an opening for the sliding part to slide in or out is arranged at the second end; and A limiting pin (320), which is slidably connected with the frame and has a first position and a second position. When it is in the first position, it is separated from the positioning jig (310) so that the positioning jig (310) can slide along the positioning sliding groove (111). When it is in the second position, it abuts against the positioning jig (310) to limit the positioning jig (310) at the first end of the positioning sliding groove (111).

3. The press-fitting device for the piston assembly of the automotive braking device according to claim 2, characterized in that, A turntable (110) is arranged on the frame (100), and a plurality of the positioning sliding grooves (111) are arranged on the turntable (110), and the plurality of the positioning sliding grooves (111) are uniformly arranged around the rotation center line of the turntable (110).

4. The press-fitting device for the piston assembly of an automotive braking device according to any one of claims 1-3, characterized in that, The second positioning component includes: A first positioning unit, which is arranged on the frame (100) and is used for positioning the initial position of the SNS (610) of the piston assembly (600); and A second positioning unit, which is arranged on the frame (100) and is used for positioning the SNS (610) of the piston assembly (600) during the press-fitting process.

5. The press-fitting device for the piston assembly of an automotive braking device according to claim 4, characterized in that, The first positioning unit includes: A positioning jaw, which has a third position and a fourth position, and it includes: Two relatively arranged jaw bodies (410) that can perform opening and closing movements. A V-shaped groove (411) for positioning the SNS (610) of the piston assembly (600) is arranged on the opposite side of the two jaw bodies (410); and A second driving device (420), which is arranged on the frame (100) and is used for driving the two jaw bodies (410) to perform opening and closing movements; and The third driving device (430) is disposed on the frame (100) and is used to drive the positioning jaw to reciprocate between the third position and the fourth position.

6. The press-fitting device for the piston assembly of the automotive brake device according to claim 5, characterized in that, The second positioning unit includes: A positioning rod (440) is disposed on the frame (100), is slidably connected to the frame (100), and has a fifth position and a sixth position; A fourth driving device (450) is used to drive the positioning rod (440) to reciprocate linearly between the fifth position and the sixth position; Wherein, when the fourth driving device (450) drives the positioning rod (440) from the fifth position to the sixth position, one end of the positioning rod (440) passes through a hole in the brake caliper (500) and can be inserted into a hole of the SNS (610) of the piston assembly (600) in the initial position; And during the press-fitting process, the fourth driving device (450) drives the positioning rod (440) to move from the sixth position to the fifth position, and makes the moving speed of the positioning rod (440) synchronize with the moving speed of the piston assembly (600).

7. The press-fitting device for the piston assembly of the automotive braking device according to claim 6, characterized in that, The second positioning unit further includes a sliding sleeve (460). The sliding sleeve (460) is fixedly disposed on the frame (100), and the positioning rod (440) is slidably inserted into the sliding sleeve (460).

8. The press-fitting device for the piston assembly of an automotive braking device according to claim 1, 2, 3, 5, 6 or 7, characterized in that, A positioning groove (211) is provided on the bearing surface.

9. The press-fitting device for the piston assembly of an automotive braking device according to claim 8, characterized in that, The inner diameter of the positioning groove (211) is larger than the outer diameter of the piston assembly (600).

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