Brake caliper high-low pressure airtight performance detection equipment

Abstract

The utility model relates to brake caliper high and low pressure air tightness performance detection equipment, which comprises a workbench, a fixed block is arranged on the workbench, a first sliding groove is formed in the fixed block along the vertical direction, a second sliding groove is formed in the bottom wall of the first sliding groove, a first sliding block is slidably connected in the first sliding groove along the vertical direction, and a second sliding block is slidably connected in the second sliding groove along the vertical direction. A second sliding block is arranged at the bottom of the first sliding block, the second sliding block is connected into the second sliding groove in a sliding mode in the vertical direction, and a driving part used for driving the first sliding block to move is further arranged in the workbench. Locking and limiting of the brake caliper are achieved through cooperation of the second sliding block and the fixing block.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to high and low pressure airtight performance detection equipment for brake calipers. Background Art

[0002] A Chinese patent with announcement number CN214407887U discloses a brake caliper low-pressure seal detection device, including a workbench and an air source. An airtightness leak detector is provided on the workbench. The air source is connected to the airtightness leak detector through a ventilation pipe 1. A solenoid valve for controlling the on and off of the ventilation pipe 1 is provided on the ventilation pipe 1. The solenoid valve is connected to the airtightness leak detector. The airtightness leak detector is connected to a ventilation pipe 2. A test head is connected to the end of the ventilation pipe 2. The test head has an air pressure sensor built in and has a ventilation joint. The air pressure sensor is connected to the airtightness leak detector. A support frame for fixing the brake caliper is fixedly connected to the workbench. A sealing gasket for sealing the piston cavity of the brake caliper is fixedly connected to the support frame.

[0003] When the above device detects the brake caliper, the brake caliper must first be placed on a support frame. However, the above support frame lacks a locking mechanism for locking the brake caliper to prevent the brake caliper from shaking. The lack of a locking mechanism will make the brake caliper easy to shake during pressure testing, making the pressure detection result inaccurate. Utility Model Content

[0004] The present application provides a brake caliper high and low pressure air tightness performance testing device, which realizes the locking and limiting of the brake caliper through the cooperation of a second sliding block and a fixed block.

[0005] The brake caliper high and low pressure air tightness performance testing equipment provided in this application adopts the following technical solutions:

[0006] The high and low pressure air tightness performance testing equipment of the brake caliper includes a workbench, a fixed block is provided on the workbench, a first slide groove is provided inside the fixed block in the vertical direction, a second slide groove is provided on the bottom wall of the first slide groove, a first slider is slidably connected in the first slide groove in the vertical direction, a second slider is provided at the bottom of the first slider, the second slider is slidably connected in the second slide groove in the vertical direction, and a driving part for driving the first slider to move is also provided in the first slide groove.

[0007] By adopting the above technical solution, before the air tightness test of the brake caliper, first put the brake caliper on the fixed block, so that the fixed block is located in the jaws of the brake caliper, and at the same time, the side wall of the jaws of the brake caliper is in conflict with the top surface of the fixed block, and then use the driving unit to control the first slider to move toward the second slide groove. When the first slider moves, it will drive the second slider to move, so that the second slider is against the other side wall of the jaws of the brake caliper, and the brake caliper is limited and locked by the internal support fixed limiting method to prevent the brake caliper from shaking during the pressure test. At the same time, the internal support fixed limiting method allows the second slider to effectively lock the brake on the fixed block when facing brake calipers of different sizes.

[0008] Preferably, the driving part includes a plurality of first springs arranged in the first slide groove and an air source arranged on the workbench, a first air hole connected to the first slide groove is opened on the side wall of the fixed block, the first air hole and the air hole opening of the first slide groove are located on the top wall of the first slide groove, and a ventilation pipe connected to the first air hole is provided on the air source, one end of the plurality of first springs are abutted against the bottom wall of the first slide groove, and the other ends of the plurality of first springs are abutted against the bottom end of the first sliding block, and the plurality of first springs are always in a compressed state.

[0009] By adopting the above technical solution, when the brake caliper is placed on the fixed block, the vent pipe 1 is connected to the first air hole, and then the air source will press the air into the first slide groove through the first air hole. After the air is pressed into the first slide groove, it will push the first slider to move toward the second slide groove and cause the multiple first springs to be compressed, so that the second slider presses the brake caliper. After the brake caliper is tested, the vent pipe 1 is pulled out from the first air hole, and the gas pressed into the first slide groove will be discharged through the first air hole. At the same time, the multiple first springs rebound and drive the first slider to move and reset.

[0010] Preferably, a second air hole connected to the outside is provided on the side wall of the first slide groove, and a mounting hole is provided on the fixing block in a vertical direction, the first air hole and the second air hole are both connected to the mounting hole, a connecting rod is rotatably connected in the mounting hole, a first through hole and a second through hole are provided on the connecting rod, the axis of the first through hole and the axis of the second through hole are perpendicular to each other, the axis of the first through hole intersects with the axis of the first air hole, and the axis of the second through hole intersects with the axis of the second air hole, in an initial state, the second through hole is connected to the second air hole, the first through hole is not connected to the first air hole, and the connecting rod blocks the first air hole.

[0011] By adopting the above technical solution, when the brake caliper is placed on the fixed block, the connecting rod is rotated, and the connecting rod is rotated so that the first through hole is connected to the first air hole, and the connecting rod blocks the second air hole, and then the air source will press the air into the first slide groove. After the brake caliper is tested, the connecting rod is rotated so that the second through hole is connected to the second air hole, and the connecting rod blocks the first air hole, and the gas pressed into the first slide groove will be discharged through the second air hole. Through the above, the ventilation pipe can be connected to the first air hole, and the air can be injected into the first slide groove and the gas in the first slide groove can be discharged without plugging and unplugging the ventilation pipe.

[0012] Preferably, the top end of the connecting rod extends out of the mounting hole, a shift rod is provided on the top end of the shaft of the connecting rod, and the axis of the shift rod is perpendicular to and intersects with the axis of the connecting rod.

[0013] By adopting the above technical solution, a lever is provided to facilitate operators to rotate the connecting rod.

[0014] Preferably, the fixing plate is provided with a first limit block and a second limit block, and the first limit block and the second limit block are respectively located on the left and right sides of the lever, and the first limit block is provided with a first slot that is engaged with the lever on a surface facing the lever, and the second limit block is provided with a second slot that is engaged with the lever on a surface facing the lever, and when the lever is engaged in the first slot, the second through hole is connected to the second air hole, and the connecting rod blocks the first air hole, and when the lever is engaged in the second slot, the first through hole is connected to the first air hole, and the connecting rod blocks the second air hole.

[0015] By adopting the above technical solution, the first clamping groove and the second clamping groove are provided so that the first through hole can be accurately connected to the first air hole and the second through hole can be accurately connected to the second air hole during the rotation of the connecting rod.

[0016] Preferably, the first limit block and the second limit block are both provided with a first plug hole, the two first plug holes are respectively connected to the first card slot and the second card slot, the fixed block is provided with a plug rod for plugging with the two first plug holes, and the shift rod is provided with a second plug hole for plugging with the plug rod.

[0017] By adopting the above technical solution, the lever can be confined in the first card slot or the second card slot by inserting the insertion rod into the corresponding first insertion hole and the second insertion hole.

[0018] Preferably, a pull ring is provided on the top end of the insertion rod, and when the insertion rod passes through the first insertion hole and is inserted into the second insertion hole, the top end of the insertion rod protrudes out of the first insertion hole, and a space for a finger to be inserted is formed between the insertion rod and the pull ring.

[0019] By adopting the above technical solution, a pull ring is provided to facilitate the insertion and removal of the plug rod.

[0020] Preferably, a plurality of guide rods are provided in the first slide groove, the axes of the plurality of guide rods are parallel to the vertical direction, the first sliding block is slidably connected to the plurality of guide rods along the vertical direction, and a plurality of first springs are respectively sleeved on the plurality of guide rods.

[0021] By adopting the above technical solution, multiple guide rods are provided to guide the movement of the first slider and limit the multiple first springs at the same time, thereby ensuring the pushing effect of the multiple first springs on the first slider.

[0022] The technical effects of this utility model are mainly reflected in the following aspects:

[0023] 1. The utility model realizes the locking and limiting of the brake caliper through the cooperation of the second slider and the fixed block

[0024] 2. The utility model can control whether the gas is pressed into the first chute by rotating the connecting rod;

[0025] 3. The utility model is provided with a first slot and a second slot so that the first through hole can be precisely connected to the first air hole and the second through hole can be precisely connected to the second air hole during the rotation of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the fixing clamp of the present application when performing air tightness testing.

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle fixed block and brake caliper.

[0028] Figure 3 yes Figure 2 Cross-sectional view of the middle fixing block and brake caliper along line AA.

[0029] Figure 4 yes Figure 2 Partial cross-sectional view of the fixing block.

[0030] Figure 5 yes Figure 1 Schematic diagram of the structure of the fixed block, air source and ventilation pipe.

[0031] Figure 6 yes Figure 1 Cross-sectional view of the middle fixing block and brake caliper along line BB.

[0032] Figure 7 It is a structural schematic diagram when the shifting rod is fixed on the second limit block by the insertion rod.

[0033] Figure 8 yes Figure 7 The figure shows a cross-sectional view of the fixed block along line CC.

[0034] Fig. 9It is a structural schematic diagram of the connecting rod and the shift rod.

[0035] Figure numerals: 1. workbench; 11. vent pipe 1; 2. fixing block; 21. first slide groove; 22. second slide groove; 23. first slider; 24. second slider; 25. first air hole; 26. second air hole; 27. mounting hole; 28. guide rod; 3. driving part; 31. first spring; 32. air source; 321. air compressor; 322. gas diverter; 4. connecting rod; 41. first through hole; 42. second through hole; 5. lever; 51. second plug hole; 6. first limit block; 61. first slot; 7. second limit block; 71. second slot; 8. first plug hole; 9. plug rod; 91. pull ring; 101. brake caliper; 102. air pressure detection gun. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings to make the technical solution of the present application easier to understand and grasp.

[0037] Reference Figure 1-Figure 4 The brake caliper high and low pressure air tightness performance testing equipment of this embodiment includes a workbench 1, on which four mounting rods, two fixed blocks 2, and two air pressure testing guns 102 are installed, and the two ends of each fixed block 2 are fixedly connected to two adjacent mounting rods. A first slide groove 21 is provided inside the fixed block 2 in the vertical direction, and a second slide groove 22 is provided on the bottom wall of the first slide groove 21 in the vertical direction. Two guide rods 28 are fixed to the first slide groove 21, and the axes of the two guide rods 28 are parallel to the vertical direction. A first slider 23 is provided in the first slide groove 21, and the two ends of the first slider 23 are respectively connected to the two guide rods 28 in a sliding manner in the vertical direction. A second slider 24 is fixed to the bottom of the first slider 23, and the second slider 24 is located between the two guide rods 28. The second slider 24 is connected to the second slide groove 22 in a sliding manner in the vertical direction.

[0038] Reference Figure 1 , Figure 4 and Figure 5 The workbench is also provided with a driving unit 3 for driving the two first sliders 23 to move. The driving unit 3 includes four first springs 31 sleeved on four guide rods 28, and an air source 32 installed on the workbench 1. The air source 32 is an air compressor 321 installed in the workbench 1 and a gas diverter 322 installed on the workbench 1. The air outlet of the air compressor 321 and the air inlet of the gas diverter 322 are connected by a pipe. The side wall of the fixed block 2 is provided with a first air hole 25 connected to the first slide groove 21. The air hole opening of the first air hole 25 connected to the first slide groove 21 is located on the top wall of the first slide groove 21. The gas diverter 322 is provided with two ventilation pipes 11 for connecting the two first air holes 25.

[0039] Reference Figure 1-Figure 3 The driving part 3 also includes two first springs 31 sleeved on the two guide rods 28, one end of the two first springs 31 abuts against the bottom wall of the first slide groove 21, and the other ends of the two first springs 31 abut against the bottom end of the first slider 23. The two first springs 31 are always in a compressed state. When there is no external force, the two first springs 31 press the first slider 23 against the top wall of the first slide groove 21.

[0040] Reference Figure 1-Figure 4 , Figure 7-Figure 9 , a second air hole 26 connected to the outside is provided on the side wall of the first slide groove 21, the second air hole 26 is relatively located below the first air hole 25, and the air hole opening of the second air hole 26 and the first slide groove 21 connecting pipe is close to the top wall of the first slide groove 21. A mounting hole 27 is provided on the fixing block 2 in the vertical direction, the first air hole 25 and the second air hole 26 are both connected to the mounting hole 27, a connecting rod 4 is rotatably connected in the mounting hole 27, a first through hole 41 and a second through hole 42 are provided on the connecting rod 4 along the axial direction perpendicular to the mounting hole 27, the second through hole 42 is located below the first through hole 41, the axis of the first through hole 41 and the axis of the second through hole 42 are perpendicular to each other, the axis of the first through hole 41 intersects with the axis of the first air hole 25, and the axis of the second through hole 42 intersects with the axis of the second air hole 26, in the initial state, the second through hole 42 is connected to the second air hole 26, the second through hole 42 is not connected to the first air hole 25, and the connecting rod 4 blocks the first air hole 25.

[0041] Reference Figure 2 and Figure 4 The top end of the connecting rod 4 extends out of the mounting hole 27, and the top end of the connecting rod 4 is fixedly connected to the lever 5, and the axis of the lever 5 is perpendicular to and intersects with the axis of the connecting rod 4. The fixing plate is fixed with a first limit block 6 and a second limit block 7, which are respectively located on the left and right sides of one end of the lever 5. The first limit block 6 is provided with a first slot 61 that is engaged with the lever 5 on one side facing the lever 5, and the second limit block 7 is provided with a second slot 71 that is engaged with the lever 5 on one side facing the lever 5. The first slot 61 and the second slot 71 are both located on the rotation path of the lever 5.

[0042] Reference Figure 2 , Figure 4 , Figure 6-Figure 9The first limiting block 6 and the second limiting block 7 are both provided with first insertion holes 8 in the vertical direction, and the two first insertion holes 8 are connected to the first card slot 61 and the second card slot 71 respectively. The fixing block 2 is provided with an insertion rod 9 that is plugged and matched with the two first insertion holes 8, and the lever 5 is provided with a second insertion hole 51 that is plugged and matched with the insertion rod 9. A pull ring 91 is provided on the top of the insertion rod 9. When the insertion rod 9 passes through the first insertion hole 8 and is inserted into the second insertion hole 51, the top of the insertion rod 9 extends out of the first insertion hole 8, and a space for fingers to be inserted is formed between the insertion rod 9 and the pull ring 91.

[0043] Reference Figure 2 , Figure 6-Figure 9 When the lever 5 is engaged in the first slot 61 and the insertion rod 9 is inserted into the second insertion hole 51 through the first insertion hole 8 on the first limit block 6, the second through hole 42 is connected to the second air hole 26, the first through hole 41 is not connected to the first air hole 25, and the connecting rod 4 blocks the first air hole 25. When the lever 5 is engaged in the second slot 71 and the insertion rod 9 is inserted into the second insertion hole 51 through the first insertion hole 8 on the second limit block 7, the first through hole 41 is connected to the first air hole 25, the second through hole 42 is no longer connected to the second air hole 26, and the connecting rod 4 blocks the second air hole 26.

[0044] The specific process of placing the brake caliper 101 in this application is as follows:

[0045] In the initial state, the lever 5 is located in the second slot 71 and the rod 9 is inserted into the second hole 51 through the first hole 8 on the second limit block 7. Before the air tightness test of the brake caliper 101, the brake caliper 101 is first placed on the fixed block 2 so that the fixed block 2 is located in the jaws of the brake caliper 101 and the side wall of the jaws of the brake caliper 101 is in contact with the top surface of the fixed block 2. Then, the rod 9 is pulled out of the first hole 8 on the second limit block 7 through the pull ring 91, and then the lever 5 is moved so that the lever 5 rotates toward the first slot 61. During the rotation of the lever 5, the connecting rod 4 will rotate with it.

[0046] When the lever 5 is rotated and inserted into the first slot 61, the insertion rod 9 passes through the first insertion hole 8 on the first limit block 6 and then is inserted into the second insertion hole 51. At this time, the first through hole 41 is connected to the first air hole 25, and the second through hole 42 is no longer connected to the second air hole 26, and the connecting rod 4 blocks the second air hole 26. After the first through hole 41 is connected to the first air hole 25, the air will be pressed into the first slide groove 21 by the air compressor 321 through the vent pipe 11 and the first air hole 25. After the air is pressed into the first slide groove 21, it will push the first slider 23 to move toward the second slide groove 22 and cause the two first springs 31 to be compressed, so that the second slider 24 moves out of the second slide groove 22 and presses against the other side wall of the jaw of the brake caliper 101, thereby completing the locking and limiting of the brake caliper 101 to prevent the brake caliper 101 from shaking when testing the sealing property.

[0047] After the brake caliper 101 is locked and limited, the air pressure detection gun 102 can be used to test the air tightness of the brake caliper 101. After the air tightness test of the brake caliper 101 is completed, the plug rod 9 is pulled out of the second plug hole 51 through the pull ring 91, and then the lever 5 is moved to move the lever 5 toward the second slot 71. When the second lever 5 moves into the second slot 71, the second through hole 42 is connected to the second air hole 26, and the first through hole 41 is not connected to the first air hole 25. The connecting rod 4 blocks the first air hole 25, and the gas pressed into the first slide groove 21 will be discharged through the first air hole 25. At the same time, the two first springs 31 rebound and drive the first slider 23 to move and reset. When the first slider 23 moves and resets, it will drive the second slider 24 to move into the second slide groove 22, and release the pressure of the second slider 24 on the brake caliper 101. After the sealing test of the brake caliper 101, it can be removed from the fixed block 2.

[0048] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A brake caliper high and low pressure air tightness performance testing device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a fixed block (2), a first slide groove (21) is provided inside the fixed block (2) in a vertical direction, a second slide groove (22) is provided on the bottom wall of the first slide groove (21), a first slider (23) is slidably connected in the first slide groove (21) in a vertical direction, a second slider (24) is provided at the bottom of the first slider (23), the second slider (24) is slidably connected in the second slide groove (22) in a vertical direction, and a driving part (3) for driving the first slider (23) to move is also provided inside the workbench (1).

2. The brake caliper high and low pressure air tightness performance testing equipment according to claim 1 is characterized in that: The driving part (3) comprises a plurality of first springs (31) arranged in the first slide groove (21), and an air source (32) arranged on the workbench (1); a first air hole (25) connected to the first slide groove (21) is opened on the side wall of the fixed block (2); the first air hole (25) and the air hole opening of the first slide groove (21) are located on the top wall of the first slide groove (21); a vent pipe (11) connected to the first air hole (25) is provided on the air source (32); one end of the plurality of first springs (31) are all against the bottom wall of the first slide groove (21), and the other ends of the plurality of first springs (31) are all against the bottom end of the first slider (23); and the plurality of first springs (31) are always in a compressed state.

3. The brake caliper high and low pressure air tightness performance testing equipment according to claim 2 is characterized in that: A second air hole (26) connected to the outside is provided on the side wall of the first slide groove (21); a mounting hole (27) is provided on the fixing block (2) in the vertical direction; the first air hole (25) and the second air hole (26) are both connected to the mounting hole (27); a connecting rod (4) is rotatably connected in the mounting hole (27); a first through hole (41) and a second through hole (42) are provided on the connecting rod (4); the axis of the first through hole (41) and the axis of the second through hole (42) are perpendicular to each other; the axis of the first through hole (41) intersects with the axis of the first air hole (25); the axis of the second through hole (42) intersects with the axis of the second air hole (26); in an initial state, the second through hole (42) is connected to the second air hole (26); the first through hole (41) is not connected to the first air hole (25); and the connecting rod (4) blocks the first air hole (25).

4. The brake caliper high and low pressure air tightness performance testing equipment according to claim 3 is characterized in that: The top end of the connecting rod (4) extends out of the mounting hole (27), and a shifting rod (5) is provided on the top end of the connecting rod (4), wherein the axis of the shifting rod (5) is perpendicular to and intersects with the axis of the connecting rod (4).

5. The brake caliper high and low pressure air tightness performance testing equipment according to claim 4 is characterized in that: The fixing plate is provided with a first limit block (6) and a second limit block (7), the first limit block (6) and the second limit block (7) are respectively located on the left and right sides of the shifting rod (5), a first clamping groove (61) for clamping with the shifting rod (5) is provided on the side of the first limit block (6) facing the shifting rod (5), and a second clamping groove (71) for clamping with the shifting rod (5) is provided on the side of the second limit block (7) facing the shifting rod (5), when the shifting rod (5) is clamped in the first clamping groove (61), the connecting rod (4) blocks the first air hole (25), and when the shifting rod (5) is clamped in the second clamping groove (71), the first through hole (41) is connected to the first air hole (25), and the connecting rod (4) blocks the second air hole (26).

6. The brake caliper high and low pressure air tightness performance testing equipment according to claim 5, characterized in that: The first limiting block (6) and the second limiting block (7) are both provided with a first plug hole (8), the two first plug holes (8) are respectively connected to the first card slot (61) and the second card slot (71), the fixed block (2) is provided with an insertion rod (9) plugged in with the two first plug holes (8), and the shifting rod (5) is provided with a second plug hole (51) plugged in with the insertion rod (9).

7. The brake caliper high and low pressure air tightness performance testing equipment according to claim 6, characterized in that: A pull ring (91) is provided on the top end of the insertion rod (9). When the insertion rod (9) passes through the first insertion hole (8) and is inserted into the second insertion hole (51), the top end of the insertion rod (9) protrudes out of the first insertion hole (8), and a space for a finger to be inserted is formed between the insertion rod (9) and the pull ring (91).

8. The brake caliper high and low pressure air tightness performance testing equipment according to claim 1, characterized in that: A plurality of guide rods (28) are arranged in the first slide groove (21), the axes of the plurality of guide rods (28) are parallel to the vertical direction, the first slider (23) is slidably connected to the plurality of guide rods (28) along the vertical direction, and a plurality of first springs (31) are respectively sleeved on the plurality of guide rods (28).

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