Piston assembly equipment for brake calipers

Abstract

The piston assembling equipment comprises a workbench, a positioning assembly and a pressing air cylinder, a piston rod of the pressing air cylinder is vertically and downwards arranged and used for pressing a piston, the positioning assembly comprises a moving table, a first locking piece, a moving block, a second locking piece and two positioning columns, and the moving table slides on the workbench in the horizontal linear direction; the first locking piece is used for locking the position of the movable table on the workbench; the moving block slides on the moving table in the sliding direction parallel to the moving table, the second locking piece is used for locking the position of the moving block, and the two positioning columns are distributed in the sliding direction of the moving table and vertically and fixedly arranged on the moving block and the moving table respectively. Due to the fact that the distances between two through holes of different types of brake calipers are different, the distance between two positioning columns needs to be adjusted by adjusting the position of a moving block on a sliding groove, and then the applicability of the brake caliper piston assembling equipment can be improved by adjusting the position of a moving table on a workbench.

Description

Technical Field

[0001] The utility model relates to the field of brake caliper assembly, in particular to a piston assembly device for a brake caliper. Background Art

[0002] The braking performance of an automobile directly affects its driving safety. With the continuous improvement of vehicle performance and the continuous increase of vehicle speed, people's requirements for safety and reliability are getting higher and higher. To ensure the safety of people and vehicles, a very reliable braking system must be equipped for the automobile. In recent years, the use of European and domestic automobiles has shown that disc brakes can ensure braking safety, stability and durability better than drum brakes. The brake caliper is an important part of the disc brake. Improper assembly of the brake caliper piston will reduce the braking effect. Seriously, it may cause traffic accidents. Therefore, the research on the assembly of the brake caliper piston has very high application value and practical significance.

[0003] As Figure 1 shown, the brake caliper 1 has two protruding jaw angles 11, an installation groove 12 for installing the piston 14 and two stepped through holes 13 for passing bolts are provided on the brake caliper 1. The piston 14 assembly device of the related art brake caliper 1 is as Figure 1 shown, including a workbench 2. Two positioning columns 37 matching the two through holes 13 are fixed on the workbench 2. The two positioning columns 37 pass through the two through holes 13 to fix the position of the brake caliper 1. A frame 21 is further provided on the workbench 2. A pressing cylinder 22 is provided on the frame 21. The piston rod of the pressing cylinder 22 is arranged downward. After passing through between the two jaw angles 11, the piston 14 is pressed into the installation groove 12 of the brake caliper 1.

[0004] The above piston assembly device can only be used to position one type of brake caliper, and has poor applicability. Content of the Utility Model

[0005] In order to increase the applicability of the brake caliper piston assembly device, the present application provides a piston assembly device for a brake caliper.

[0006] The piston assembly device for a brake caliper provided by the present application adopts the following technical solutions:

[0007] A piston assembly device for a brake caliper, comprising a workbench, a positioning assembly and a pressing cylinder. The positioning assembly is arranged on the workbench to limit the brake caliper, so that the installation groove of the brake caliper faces upward. A frame is arranged on the workbench, and the pressing cylinder is arranged on the frame. The piston rod of the pressing cylinder is arranged vertically downward to press the piston. The positioning assembly includes a moving table, a first locking member, a moving block, a second locking member and two positioning columns. The moving table slides on the workbench along a horizontal straight line direction, and the first locking member is used to lock the position of the moving table on the workbench; the moving block slides on the moving table along a direction parallel to the sliding direction of the moving table, and the second locking member is used to lock the position of the moving block. The two positioning columns are distributed along the sliding direction of the moving table and are respectively vertically and fixedly arranged on the moving block and the moving table.

[0008] By adopting the above technical solution, since the distances between the two through holes of brake calipers of different models are different, it is necessary to adjust the distance between the two positioning columns by adjusting the position of the moving block on the chute, and then adjust the position of the moving table on the workbench to make the installation groove of the brake caliper directly below the piston rod of the pressing cylinder, so that the piston rod of the pressing cylinder can press the piston into the installation groove, which can increase the applicability of the piston assembly device for the brake caliper.

[0009] Preferably, an I-shaped groove is opened on the workbench, and an I-shaped block is arranged on the moving table. The moving table slides on the workbench through the cooperation of the I-shaped block and the I-shaped groove. The first locking member includes a stud and a resisting block. The stud is threadedly connected to the frame, and the axial direction of the stud is perpendicular to the sliding direction of the moving table. The resisting block is rotatably arranged at one end of the stud close to the moving table, and the resisting block is used to press against the side wall of the moving table.

[0010] By adopting the above technical solution, when the operator needs to adjust the position of the moving table, rotate the stud to make the resisting block away from the moving table, then adjust the position of the moving table, and then rotate the stud to make the resisting block press against the moving table, and limit the position of the moving table by the frictional force between the resisting block and the moving table.

[0011] Preferably, a chute is opened on the top surface of the moving table, and the moving block slides in the chute. The second locking member includes a movable block and a first bolt. The positioning column on the moving block is fixed at one end of the moving block close to the other positioning column, and the other end of the moving block is hinged to the movable block. A waist-shaped hole is opened on the movable block, and one end of the first bolt passes through the waist-shaped hole and is then threadedly connected to the moving table.

[0012] By adopting the above technical solution, when the operator needs to adjust the position of the moving block, he first loosens the first bolt and then adjusts the position of the moving block on the slide slot. At this time, the movable block will change its position according to the change in the position of the moving block, but the first bolt is always inserted into the waist-shaped hole. After adjusting the position of the moving block, tighten the first bolt to fix the movable block and the position of the moving block.

[0013] Preferably, one end of the slide groove away from the other positioning column passes through the movable platform.

[0014] By adopting the above technical solution, the installation and disassembly of the moving block on the slide groove can be facilitated, and the moving range of the moving block can be increased.

[0015] Preferably, one side of the workbench is an operating position for an operator to perform operations, the movable platform slides in an inclined direction relative to the operating position, and the mounting groove of the brake caliper on the positioning assembly is directly opposite to the operating position without obstruction.

[0016] By adopting the above technical solution, compared with the sliding direction of the mobile platform being perpendicular to the operating position, the tilted mobile platform can save space and make the installation groove better face the operating position, making it easier for the operator to observe the installation status of the piston at the operating position.

[0017] Preferably, it also includes a balanced force component, which is used to disperse the pressing force at different positions of the piston when the piston rod of the pressing cylinder is pressed downward.

[0018] By adopting the above technical solution, for some brake calipers whose installation grooves are larger than the gap between the two caliper corners, the piston rod of the pressing cylinder is used directly to press the piston. The contact area between the piston rod and the piston is small, or there may be no contact, which will cause the piston to be unable to be pressed into the installation groove. At this time, a balanced force component is required to help install the piston of brake calipers of different models.

[0019] Preferably, the balanced force component includes an ejection cylinder, a fixed platform, a lifting plate, a spring, a second bolt and a pressing plate. The ejection cylinder is fixedly arranged on one side of the workbench, and the piston rod of the ejection cylinder extends toward one side of the brake caliper. The fixed platform is fixed on the piston rod of the ejection cylinder, and the lifting plate slides on the fixed platform in a vertical direction. The two ends of the spring are respectively arranged on the lifting plate and the fixed platform; the pressing plate is fixed to the lifting plate by the second bolt, and when there is no external force, the height position of the pressing plate is located between the two clamp angles and the piston to be installed; when the piston rod of the ejection cylinder is extended, the pressing plate is located directly above the piston.

[0020] By adopting the above technical solution, the operator fixes the brake caliper on the two positioning posts, then pre-places the piston in the installation groove, and then drives the piston rod of the ejecting cylinder to extend. At this time, the pressing plate moves to directly above the piston and covers the piston, and then drives the piston rod of the pressing cylinder to extend. The piston rod of the pressing cylinder presses down on the pressing plate. Since the contact area between the pressing plate and the piston is large, the pressing force of the pressing plate can be dispersed at different positions of the piston, so that the piston can be stably pressed into the installation groove. After the piston is installed, the piston rod of the pressing cylinder contracts, and the pressing plate resets under the action of the spring. Then the piston rod of the ejecting cylinder contracts, and the operator can remove the brake caliper.

[0021] The technical effects of the present utility model are mainly reflected in the following aspects:

[0022] 1. The present utility model adjusts the distance between the two positioning posts by adjusting the position of the moving block on the sliding groove, and then adjusts the position of the moving table on the workbench to make the installation groove of the brake caliper directly below the piston rod of the pressing cylinder, so that the piston rod of the pressing cylinder can press the piston into the installation groove, which can increase the applicability of the piston assembly equipment for the brake caliper.

[0023] 2. For some brake calipers with an installation groove larger than the gap between the two clamping angles, when directly using the piston rod of the pressing cylinder to press the piston, the contact area between the piston rod and the piston is small, or it may not be able to contact, which will cause the piston to not be pressed into the installation groove. At this time, the force balancing component is needed to help install the piston for different models of brake calipers. Description of the Drawings

[0024] Figure 1 is the piston assembly equipment of the brake caliper in the related art.

[0025] Figure 2 is the structural schematic diagram of the retracted state of the piston rod of the ejecting cylinder in the embodiment of the present application.

[0026] Figure 3 is the structural schematic diagram of the extended state of the piston rod of the ejecting cylinder in the embodiment of the present application.

[0027] Description of the reference numerals: 1. Brake caliper; 11. Clamping angle; 12. Installation groove; 13. Through hole; 14. Piston; 2. Workbench; 21. Frame; 22. Pressing cylinder; 23. I-shaped groove; 3. Positioning component; 31. Moving table; 311. Sliding groove; 312. I-shaped block; 32. Stud; 321. Kidney-shaped hole; 33. Block; 34. Moving block; 35. Movable block; 36. First bolt; 37. Positioning post; 4. Force balancing component; 41. Ejecting cylinder; 42. Fixed table; 43. Lifting plate; 44. Spring; 45. Pressing plate; 46. Second bolt. Detailed implementation manners

[0028] The following will further elaborate on this application in conjunction with the appended Figures 2-3 to make the technical solution of this application easier to understand and master.

[0029] The embodiment of this application discloses a piston assembly device for a brake caliper.

[0030] Referring to Figure 2 and Figure 3 , a piston assembly device for a brake caliper in this embodiment includes a workbench 2, a positioning assembly 3, and a pressing air cylinder 22. The positioning assembly 3 is arranged on the workbench 2 to limit the brake caliper 1, so that the installation groove 12 of the brake caliper 1 faces upward. A frame 21 is fixed on the workbench 2, and the pressing air cylinder 22 is fixed on the frame 21. The piston rod of the pressing air cylinder 22 is arranged vertically downward for pressing the piston 14. The positioning assembly 3 includes a moving table 31, a first locking member, a moving block 34, a second locking member, and two positioning columns 37. The moving table 31 slides on the workbench 2 in a horizontal linear direction, and the first locking member is used to lock the position of the moving table 31 on the workbench 2. The moving block 34 slides on the moving table 31 along a direction parallel to the sliding direction of the moving table 31, and the second locking member is used to lock the position of the moving block 34. The two positioning columns 37 are distributed along the sliding direction of the moving table 31, and are respectively vertically and fixedly arranged on the moving block 34 and the moving table 31.

[0031] Referring to Figure 2 and Figure 3 , since the distances between the two through holes 13 of brake calipers 1 of different models are different, it is necessary to adjust the distance between the two positioning columns 37 by adjusting the position of the moving block 34 on the sliding groove 311, and then by adjusting the position of the moving table 31 on the workbench 2, so that the installation groove 12 of the brake caliper 1 is located directly below the piston rod of the pressing air cylinder 22, enabling the piston rod of the pressing air cylinder 22 to press the piston 14 into the installation groove 12, which can increase the applicability of the piston 14 assembly device for the brake caliper 1.

[0032] Referring to Figure 2 and Figure 3 , an I-shaped groove 23 is formed on the workbench 2, and an I-shaped block 312 is provided on the moving table 31. The moving table 31 slides on the workbench 2 through the cooperation of the I-shaped block 312 and the I-shaped groove 23. The first locking member includes a stud 32 and a resisting block 33. The stud 32 is threadedly connected to the frame 21, and the axial direction of the stud 32 is perpendicular to the sliding direction of the moving table 31. The resisting block 33 is rotatably arranged at one end of the stud 32 close to the moving table 31, and the resisting block 33 is used to tightly press against the side wall of the moving table 31. Among them, the bottom surface of the resisting block 33 always abuts against the top surface of the workbench 2, and the resisting block 33 does not rotate together with the stud 32.

[0033] Referring toFigure 2 and Figure 3 When the operator needs to adjust the position of the moving platform 31, rotate the stud 32 to move the abutting block 33 away from the moving platform 31. Then adjust the position of the moving platform 31, and rotate the stud 32 again to make the abutting block 33 press tightly against the moving platform 31, so as to limit the position of the moving platform 31 through the frictional force between the abutting block 33 and the moving platform 31.

[0034] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a sliding groove 311 is formed on the top surface of the moving platform 31, and the moving block 34 slides in the sliding groove 311. The second locking member includes a movable block 35 and a first bolt 36. The positioning post 37 on the moving block 34 is fixed at one end of the moving block 34 close to another positioning post 37. The other end of the moving block 34 is hinged to the movable block 35. A kidney-shaped hole 321 is formed on the movable block 35. One end of the first bolt 36 passes through the kidney-shaped hole 321 and is threadedly connected to the moving platform 31.

[0035] Refer to Figure 2 and Figure 3 When the operator needs to adjust the position of the moving block 34, first loosen the first bolt 36, and then adjust the position of the moving block 34 on the sliding groove 311. At this time, the movable block 35 will change its position according to the change of the position of the moving block 34, but the first bolt 36 is always passed through the kidney-shaped hole 321. After adjusting the position of the moving block 34, tighten the first bolt 36 again to fix the positions of the movable block 35 and the moving block 34.

[0036] Refer to Figure 2 and Figure 3 As shown in FIGS. and, one end of the sliding groove 311 far from another positioning post 37 penetrates through the moving platform 31, which can facilitate the installation and disassembly of the moving block 34 on the sliding groove 311 and improve the moving range of the moving block 34 at the same time.

[0037] Refer to Figure 2 and Figure 3 As shown in FIGS. and, one side of the workbench 2 is an operation position for the operator to operate. The moving platform 31 slides along an inclined direction relative to the operation position, and the installation groove 12 of the brake caliper 1 on the positioning assembly 3 faces the operation position without obstruction.

[0038] Refer to Figure 2 and Figure 3 Compared with the case where the sliding direction of the moving platform 31 is perpendicular to the operation position, the inclined moving moving platform 31 can save space and make the installation groove 12 better face the operation position, facilitating the operator to observe the installation condition of the piston 14 at the operation position.

[0039] Refer to Figure 2 and Figure 3, a piston assembly device for a brake caliper in this embodiment further includes a force balance component 4, and the force balance component 4 is used to disperse the pressing force at different positions of the piston 14 when the piston rod of the pressing cylinder 22 presses down.

[0040] Referring to Figure 2 and Figure 3 , for some brake calipers 1 where the installation groove 12 is larger than the gap between two clamping corners 11, directly using the piston rod of the pressing cylinder 22 to press the piston 14, the contact area between the piston rod and the piston 14 is small, or it may not be able to contact, which will cause the piston 14 to not be pressed into the installation groove 12. At this time, the force balance component 4 is needed, which can help install the piston 14 for different models of brake calipers 1.

[0041] Referring to Figure 2 and Figure 3 , the force balance component 4 includes an ejecting cylinder 41, a fixing table 42, a lifting plate 43, a spring 44, a pressing plate 45 and a plurality of second bolts 46. The ejecting cylinder 41 is fixedly arranged on one side of the workbench 2 away from the operation position, the piston rod of the ejecting cylinder 41 extends towards the brake caliper 1 side, the fixing table 42 is fixed on the piston rod of the ejecting cylinder 41, the lifting plate 43 slides vertically on the fixing table 42, both ends of the spring 44 are respectively arranged on the lifting plate 43 and the fixing table 42, and the pressing plate 45 is fixed on the lifting plate 43 through the second bolts 46.

[0042] Referring to Figure 2 and Figure 3 , when there is no external force, the height position of the pressing plate 45 is located between the two clamping corners 11 and the piston 14 to be installed. When the piston rod of the ejecting cylinder 41 extends, the pressing plate 45 is located directly above the piston 14, and the pressing plate 45 can cover most of the piston 14. The movement of the pressing plate 45 does not affect the brake caliper 1.

[0043] Referring to Figure 2 and Figure 3 , the operator fixes the brake caliper 1 on the two positioning columns 37, then pre - places the piston 14 in the installation groove 12, and then drives the piston rod of the ejecting cylinder 41 to extend. At this time, the pressing plate 45 moves directly above the piston 14 and covers the piston 14. Then drive the piston rod of the pressing cylinder 22 to extend, and the piston rod of the pressing cylinder 22 presses down on the pressing plate 45. Since the contact area between the pressing plate 45 and the piston 14 is large, the pressing plate 45 can disperse the pressing force at different positions of the piston 14, so that the piston 14 can be stably pressed into the installation groove 12. After the piston 14 is installed, the piston rod of the pressing cylinder 22 contracts, the pressing plate 45 resets under the action of the spring 44, and then the piston rod of the ejecting cylinder 41 contracts, the pressing plate 45 moves away from the brake caliper 1, and the operator can remove the brake caliper 1.

[0044] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by this application.

Claims

1. A brake caliper piston assembly device, comprising a workbench (2), a positioning assembly (3) and a pressing cylinder (22), wherein the positioning assembly (3) is arranged on the workbench (2) for limiting the position of the brake caliper (1) so that the mounting groove (12) of the brake caliper (1) is arranged upward, a frame (21) is arranged on the workbench (2), the pressing cylinder (22) is arranged on the frame (21), and the piston rod of the pressing cylinder (22) is arranged vertically downward for pressing the piston (14), characterized in that: The positioning assembly (3) comprises a moving platform (31), a first locking member, a moving block (34), a second locking member and two positioning columns (37); the moving platform (31) slides on the workbench (2) along a horizontal straight line direction; the first locking member is used to lock the position of the moving platform (31) on the workbench (2); the moving block (34) slides on the moving platform (31) along a sliding direction parallel to the moving platform (31); the second locking member is used to lock the position of the moving block (34); and the two positioning columns (37) are distributed along the sliding direction of the moving platform (31) and are respectively vertically fixed on the moving block (34) and the moving platform (31).

2. The piston assembly device for a brake caliper according to claim 1, characterized in that: The workbench (2) is provided with an I-shaped groove (23), the movable platform (31) is provided with an I-shaped block (312), the movable platform (31) slides on the workbench (2) through the cooperation between the I-shaped block (312) and the I-shaped groove (23), the first locking member comprises a stud (32) and a stop block (33), the stud (32) is threadedly connected to the frame (21), the axial direction of the stud (32) is perpendicular to the sliding direction of the movable platform (31), the stop block (33) is rotatably arranged at one end of the stud (32) close to the movable platform (31), and the stop block (33) is used to press against the side wall of the movable platform (31).

3. The piston assembly device for a brake caliper according to claim 1, characterized in that: The top surface of the movable platform (31) is provided with a slide groove (311), the movable block (34) slides in the slide groove (311), the second locking member comprises a movable block (35) and a first bolt (36), a positioning column (37) on the movable block (34) is fixed to one end of the movable block (34) close to another positioning column (37), the other end of the movable block (34) is hinged on the movable block (35), a waist-shaped hole (321) is provided on the movable block (35), and one end of the first bolt (36) passes through the waist-shaped hole (321) and is threadedly connected to the movable platform (31).

4. The piston assembly device for a brake caliper according to claim 3, characterized in that: One end of the slide groove (311) away from the other positioning column (37) passes through the movable platform (31).

5. The piston assembly device for a brake caliper according to claim 1, characterized in that: One side of the workbench (2) is an operating position for an operator to operate, the movable platform (31) slides in an inclined direction relative to the operating position, and the mounting groove (12) of the brake caliper (1) on the positioning assembly (3) is directly opposite to the operating position without any obstruction.

6. The piston assembly device for a brake caliper according to claim 1, characterized in that: It also includes a balanced force component (4), which is used to disperse the pressing force at different positions of the piston (14) when the piston rod of the pressing cylinder (22) is pressed downward.

7. The piston assembly device for a brake caliper according to claim 6, characterized in that: The balanced force component (4) comprises an ejection cylinder (41), a fixed platform (42), a lifting plate (43), a spring (44), a second bolt (46) and a pressing plate (45); the ejection cylinder (41) is fixedly arranged on one side of the workbench (2); a piston rod of the ejection cylinder (41) extends toward one side of the brake caliper (1); the fixed platform (42) is fixed on the piston rod of the ejection cylinder (41); and the lifting plate (43) slides in a vertical direction on the fixed platform (42). On the fixed platform (42), the two ends of the spring (44) are respectively arranged on the lifting plate (43) and the fixed platform (42); the pressing plate (45) is fixed on the lifting plate (43) by a second bolt (46); when there is no external force, the height position of the pressing plate (45) is located between the two clamp angles (11) and the piston (14) to be installed; when the piston rod of the ejection cylinder (41) is extended, the pressing plate (45) is located directly above the piston (14).

Images