CN212458405U

CN212458405U - Disc brake calliper cylinder body sealing washer detection mechanism that targets in place

Info

Publication number: CN212458405U
Application number: CN202021695555.XU
Authority: CN
Inventors: 韩多禄; 张秦州; 孙甲萌
Original assignee: Hubei Jingchuan Intelligent Equipments Co ltd
Current assignee: Hubei Jingchuan Intelligent Equipments Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-02-02
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to a detection mechanism, concretely relates to disk brake calliper cylinder body sealing washer detection mechanism that targets in place. The detection mechanism comprises a rack, a positioning tool, a positioning regulator and a detector, wherein the rack is provided with the positioning tool through a workpiece lifting cylinder, a positioning pressure rod is arranged above the positioning tool, and the positioning pressure rod is fixedly connected with the rack through an assembly bracket; a positioning regulator is arranged on the machine frame on one side of the positioning tool, and a detector is arranged on the positioning regulator on one side of the positioning pressure rod. The detection mechanism fixes the workpiece by matching the positioning tool with the positioning pressure rod, and can automatically detect the workpiece by adjusting the positioner and matching the detector, so that the labor intensity can be effectively reduced, and the working efficiency is improved; the detection process can be parameterized through the displacement sensor, so that the misjudgment rate can be effectively reduced; the problem of current detection mode intensity of labour height, work efficiency are low and erroneous judgement rate is higher in the testing process is solved.

Description

Disc brake calliper cylinder body sealing washer detection mechanism that targets in place

Technical Field

The utility model relates to a detection mechanism, concretely relates to disk brake calliper cylinder body sealing washer detection mechanism that targets in place.

Background

A caliper, which is one of the core brake components, is widely used in vehicles to generate a braking force by an interaction between the caliper, which is generally fixed to a frame of the vehicle, and a brake disc, which is fixed to a wheel. Calliper includes calliper cylinder body, dust cover and piston, and the piston slides on calliper cylinder body and dust cover under the hydraulic oil effect, and then promotes brake pad on the piston and brake disc and produce braking force with the friction mode, must detect the assembly condition of sealing washer in the production process to avoid influencing braking force because of the leakproofness of cylinder body sealing washer influence piston and cylinder body. At present, in the brake assembling process, the piston sealing ring is assembled automatically through a sealing ring assembling machine table, whether the sealing ring is assembled in place or not is judged manually, the labor intensity is high in the process, the production efficiency is low, and certain misjudgment exists due to individual difference, so that the misjudgment rate is high.

Disclosure of Invention

The utility model aims at: the in-place detection mechanism for the sealing ring of the cylinder body of the disc brake caliper can automatically detect the assembly condition of the sealing ring, effectively reduce labor intensity, improve working efficiency and reduce misjudgment rate.

The technical scheme of the utility model is that:

the utility model provides a disc brake calliper cylinder body sealing washer detection mechanism that targets in place, it comprises frame, location frock, positioning regulator and detector, its characterized in that: a positioning tool is arranged on the rack through a workpiece lifting cylinder, a positioning pressure rod is arranged above the positioning tool, and the positioning pressure rod is fixedly connected with the rack through an assembly bracket; a positioning regulator is arranged on the machine frame on one side of the positioning tool, and a detector is arranged on the positioning regulator on one side of the positioning pressure rod.

The positioning tool is composed of a bottom plate, supporting rods and positioning plates, and the positioning plates are arranged on the bottom plate through the symmetrically arranged supporting rods; the positioning tool is movably connected with the workpiece lifting cylinder through the bottom plate.

The positioning regulator consists of a transverse moving cylinder, a support frame and a positioning lifting cylinder, the support frame is fixedly arranged on a piston rod of the transverse moving cylinder, and the positioning lifting cylinder is arranged on the support frame; the transverse moving cylinder is fixedly connected with the rack, and the support frame is movably connected with the rack through a sliding rail.

The detector consists of an assembly plate, a displacement sensor, a rotating motor, a rotating detection head and a displacement value transmission rod, wherein the displacement sensor is arranged on the upper surface of the assembly plate, the rotating motor is arranged on the assembly plate on one side of the displacement sensor, the rotating detection head is arranged on the assembly plate on the other side of the displacement sensor, and the rotating detection head is connected with the rotating motor through a synchronous belt; the lower surface of the assembly plate is movably provided with a displacement value transmission rod through a support plate, one end of the displacement value transmission rod is connected with the end of a displacement sensor penetrating through the assembly plate in an abutting mode, and the other end of the displacement value transmission rod is movably connected with the rotation detection head through a pin shaft; be provided with spacing cylinder on the assembly plate between rotatory detection head and the displacement sensor, the piston rod end of spacing cylinder supports with displacement value transfer line intermittent type and leans on to be connected.

The assembly plate be L form, the assembly plate passes through the piston rod fixed connection of installation pole and location lift cylinder, the assembly plate passes through slide rail and support frame swing joint.

The rotary detection head consists of an assembly sleeve, a rotary disk, a detection probe, a connecting rod, a return spring, a transmission block and a workpiece positioning ring, wherein the rotary disk is fixedly arranged on the assembly sleeve, and the detection probe is movably arranged on the rotary disk through a guide rod; a connecting rod is movably arranged in the assembling sleeve through an assembling bearing, a limiting ring is arranged on the inner wall of the assembling sleeve, and a return spring is sleeved on the connecting rod between the limiting ring and the assembling bearing; a transmission block is movably mounted on the assembly sleeve above the connecting rod through a pin shaft, and the transmission block is movably connected with the detection probe and the connecting rod through balls respectively; a workpiece positioning ring is sleeved on the assembling sleeve below the rotating disc; the assembly sleeve is movably connected with the assembly plate through a bearing, and the end of the assembly sleeve below the assembly plate is connected with the rotating motor through a synchronous belt; the connecting rod is movably connected with the displacement value transmission rod through a pin shaft; the workpiece positioning ring is fixedly connected with the assembling plate.

The upper circumferential surface of the workpiece positioning ring is conical.

The transmission block is Y-shaped.

The end of the displacement value transmission rod is provided with a sliding hole, and the sliding hole is in sliding connection with the pin shaft.

The beneficial effects of the utility model reside in that:

the in-place detection mechanism for the sealing ring of the disc brake caliper cylinder body fixes a workpiece (the disc brake caliper cylinder body) through the matching of the positioning tool and the positioning pressure rod, and can automatically detect the workpiece through the matching of the adjusting positioner and the detector, so that the labor intensity can be effectively reduced, and the working efficiency is improved; the detection process can be parameterized through the displacement sensor, so that the misjudgment rate can be effectively reduced; the problem of current detection mode intensity of labour high, work efficiency is low and the erroneous judgement rate is higher in the testing process is solved, the specially adapted disc brake calliper cylinder body sealing washer detects and uses in place.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic front view of FIG. 1;

FIG. 3 is a schematic diagram of the detector of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 in the direction A-A;

fig. 5 is a schematic structural diagram of the rotation detecting head of the present invention.

In the figure: 1. the device comprises a rack, 2, a workpiece lifting cylinder, 3, a positioning compression bar, 4, an assembly support, 5, a bottom plate, 6, a support rod, 7, a positioning plate, 8, a transverse moving cylinder, 9, a support frame, 10, a positioning lifting cylinder, 11, an assembly plate, 12, a displacement sensor, 13, a rotating motor, 14, a displacement value transmission rod, 15, a support plate, 16, a limiting cylinder, 17, an installation rod, 18, an assembly sleeve, 19, a rotating disk, 20, a detection probe, 21, a connecting rod, 22, a reset spring, 23, a transmission block, 24, a workpiece positioning ring, 25, an assembly bearing, 26, a limiting ring, 27, a ball, 28, a slide hole, 29 and a workpiece.

Detailed Description

The in-place detection mechanism for the sealing ring of the cylinder body of the caliper of the disc brake comprises a rack 1, a positioning tool, a positioning regulator and a detector, wherein a workpiece lifting cylinder 2 is installed on the rack 1, conveying guide rails are symmetrically arranged on the racks on two sides of the workpiece lifting cylinder 2, the positioning tool is arranged above the workpiece lifting cylinder 2, and the conveying guide rails are used for conveying a workpiece 29 provided with the sealing ring to the position above the workpiece lifting cylinder 2 through the positioning tool; the positioning tool comprises a bottom plate 5, a support rod 6 and a positioning plate 7, wherein the positioning plate 7 is installed on the bottom plate 5 through the support rod 6 which is symmetrically arranged, the positioning plate 7 is symmetrically provided with positioning holes, and the assembling screw of the workpiece 29 is inserted into the positioning holes to assemble the workpiece 29 on the positioning plate 7 of the positioning tool; two ends of the bottom plate 5 are respectively in sliding contact connection with the conveying guide rails on two sides of the workpiece lifting cylinder 2, the bottom plate is driven to move through the conveying guide rails, and the positioning tool is driven to move, so that the workpiece 29 is driven to move, and the workpiece 29 is moved from the sealing ring assembling station to the sealing ring in-place detection station; the positioning tool is movably connected with the workpiece lifting cylinder 2 through the bottom plate 5, the workpiece lifting cylinder 2 drives the bottom plate 5 to lift/descend, and drives the positioning tool and the workpiece 29 to lift/descend, so that the positioning tool and the workpiece 29 are separated from the conveying guide rail or fall back to the conveying guide rail; a positioning pressure rod 3 is arranged above the positioning tool, the positioning pressure rod 3 is fixedly connected with the rack 1 through an assembly support 4, the positioning pressure rod 3 is used for pressing the workpiece 29 on a positioning plate 7 of the positioning tool when the workpiece lifting cylinder 2 drives the workpiece 29 and the positioning tool to ascend, and the positioning pressure rod 3 is matched with the workpiece lifting cylinder 2 and the positioning tool to fix the position of the workpiece 29; a positioning regulator is arranged on the rack 1 at one side of the positioning tool, the positioning regulator consists of a transverse moving cylinder 8, a support frame 9 and a positioning lifting cylinder 10, the support frame 9 is fixedly arranged on a piston rod of the transverse moving cylinder 8, and the positioning lifting cylinder 10 is arranged on the support frame 9; the transverse moving cylinder 8 is fixedly connected with the rack 1, and the supporting frame 9 is movably connected with the rack 1 through a sliding rail.

A detector is arranged on a positioning regulator on one side of the positioning pressure rod 3, the detector consists of an assembling plate 11, a displacement sensor 12, a rotating motor 13, a rotating detection head and a displacement value transmission rod 14, the displacement sensor 12 is arranged on the upper surface of the assembling plate 11, and the displacement sensor 12 has the function that in the detection process, the detection process is parameterized, so that the in-place condition of the sealing ring can be intuitively judged, the in-place condition of the sealing ring can be conveniently judged, the error judgment in manual detection is avoided, and the error judgment rate is effectively reduced; a rotating motor 13 is arranged on the assembling plate 11 at one side of the displacement sensor 12, and the rotating motor 13 is a servo motor so as to control the rotating angle of the rotating motor 13; a rotary detection head is arranged on the assembling plate 11 at the other side of the displacement sensor 12 and is connected with a rotary motor 13 through a synchronous belt; the rotary detection head comprises an assembly sleeve 18, a rotary disk 19, a detection probe 20, a connecting rod 21, a return spring 22, a transmission block 23 and a workpiece positioning ring 24, wherein the rotary disk 19 is fixedly arranged on the assembly sleeve 18, the detection probe 20 is movably arranged on the rotary disk 19 through a guide rod, the rotary disk 19 can be driven to rotate when the assembly sleeve 18 rotates, and the detection probe 20 can be driven to rotate when the rotary disk 19 rotates; the connecting rod 21 is movably mounted in the assembling sleeve 18 through an assembling bearing 25, and the assembling bearing 25 is used for preventing the connecting rod 21 from rotating relative to the assembling sleeve 18 through the assembling bearing 25 in the rotating process of the assembling sleeve 18; a limit ring 26 is arranged on the inner wall of the assembling sleeve 18, and a return spring 22 is sleeved on the connecting rod 21 between the limit ring 26 and the assembling bearing 25; a transmission block 23 is movably mounted on the assembly sleeve 18 above the connecting rod 21 through a pin shaft, the transmission block 23 is Y-shaped, the transmission block 23 is respectively movably connected with the detection probe 20 and the connecting rod 21 through a ball 27, the assembly sleeve 18 supports the connecting rod 21 through an assembly bearing 25, the connecting rod 21 is ensured to be always positioned on a central axis of the assembly sleeve 18, and the connecting rod 21 is further ensured to be always connected with the transmission block 23 through the ball 27; the function of the return spring 22 is to make the connecting rod 21 keep thrust on the transmission block 23 through the ball 27, and make the transmission block 23 keep thrust on the detection probe 20, thereby ensuring that the detection probe 20 can always be connected with the abutting joint of the sealing ring in the workpiece 29; the assembly sleeve 18 below the rotating disc 19 is sleeved with a workpiece positioning ring 24, the upper circumferential surface of the workpiece positioning ring 24 is conical, the workpiece positioning ring 24 is fixedly connected with the assembly plate 11, and the conical upper circumferential surface of the workpiece positioning ring 24 is used for facilitating the piston hole of the workpiece 29 to be sleeved on the workpiece positioning ring 24 under the guide of a conical inclined surface when the rotary detection head is inserted into the piston hole of the workpiece 29 so as to position the rotary detection head through the workpiece positioning ring 24, so that the detection probe 20 can be accurately abutted and connected with a sealing ring in the workpiece 29; the assembly sleeve 18 is movably connected with the assembly plate 11 through a bearing, the end of the assembly sleeve 18 below the assembly plate 11 is connected with the rotating motor 13 through a synchronous belt, the rotating motor 13 can drive the assembly sleeve 18 to rotate through the synchronous belt when rotating, and then the rotating disc 19 drives the detection probe 20 to rotate; the connecting rod 21 is movably connected with the displacement value transmission rod 14 through a pin shaft; the lower surface of the assembly plate 11 is movably provided with a displacement value transmission rod 14 through a support plate 15, one end of the displacement value transmission rod 14 is connected with the end of a displacement sensor 12 penetrating through the assembly plate 11 in an abutting mode, the other end of the displacement value transmission rod 14 is movably connected with a rotation detection head through a pin shaft, the end of the displacement value transmission rod 14 is provided with a sliding hole 28, the sliding hole 28 is connected with the pin shaft in a sliding mode, the displacement value transmission rod 14 is connected with a connecting rod 21 through the sliding hole 28 and the pin shaft in a matching mode, the sliding hole 28 has the function that when the displacement value transmission rod 14 rotates by taking the pin shaft on the support plate 18 as an axis, the displacement value transmission rod 14 and the connecting rod 21 have a degree of freedom in the horizontal direction, and when the displacement value transmission rod 14 rotates under the action of the connecting rod 21, the displacement value transmission rod 14; the displacement value transmission rod 14 is used for transmitting the thrust of the connecting rod 21 to the displacement value transmission rod 14 to the displacement sensor 12, and the displacement value of the connecting rod 21 is detected through the displacement sensor 12; a limiting cylinder 16 is arranged on an assembling plate 11 between the rotary detection head and the displacement sensor 12, the end of a piston rod of the limiting cylinder 16 is intermittently abutted and connected with a displacement value transmission rod 14, the limiting cylinder 16 is used for pressing the displacement value transmission rod 14 downwards before the rotary detection head is inserted into a piston hole of a workpiece 29, so that the displacement value transmission rod 14 drives a connecting rod 21 to overcome the elasticity of a return spring 22 to descend, the connecting rod 21 does not extrude the detection probe 20 through a traditional block 23 any more, when the detection probe 20 is inserted between sealing rings of the workpiece 29, the detection probe 20 is easily inserted between the sealing rings under the action of an arc surface of the sealing rings, the sealing rings are not jacked up, and therefore the position of the sealing rings is ensured to be unchanged; the assembly plate 11 is L-shaped, the assembly plate 11 is fixedly connected with a piston rod of the positioning lifting cylinder 10 through an installation rod 17, and the assembly plate 11 is movably connected with the support frame 9 through a sliding rail.

When the in-place detection mechanism for the sealing ring of the cylinder body of the disc brake caliper works, a workpiece 29 is conveyed to the position above a workpiece lifting cylinder 2 from a sealing ring assembling station by a conveying guide rail through a positioning tool, after the workpiece 29 is in place, the workpiece lifting cylinder 2 is started, the workpiece 29 is lifted through the positioning tool, and the workpiece 29 is pressed on a positioning plate 7 of the positioning tool by a positioning pressure rod 3 so that the position of the workpiece 29 is fixed; after a workpiece 29 is fixed, starting the transverse moving cylinder 8, enabling the transverse moving cylinder 8 to drive the supporting frame 9 to move towards the workpiece 29, enabling the supporting frame 9 to drive the assembling plate 11 to move towards the workpiece 29, further enabling the rotary detection head of the detector to move towards the workpiece 29, stopping the transverse moving cylinder 8 when the rotary detection head moves to the position below a piston hole of the workpiece 29, simultaneously starting the limiting cylinder 16 and the positioning lifting cylinder 10, and after the positioning lifting cylinder 10 is started, driving the assembling plate 11 to move upwards through the mounting rod 17, further driving the rotary detection head to move upwards, and gradually inserting the rotary detection head into the piston hole of the workpiece 29 under the action of the workpiece positioning ring 24; after the limiting air cylinder 16 is started, the displacement value transmission rod 14 is extruded, the connecting rod 21 overcomes the elastic force of the return spring 22, the transmission block 23 is not extruded, the detection probe 20 is not extruded any more, and the detection probe 20 can be inserted between the sealing rings of the workpiece 29 in the process that the rotary detection head is inserted into the piston hole of the workpiece 29; after the detection head is rotated to the right position, the limiting air cylinder 16 is reset, so that the connecting rod 21 extrudes the transmission block 23 under the action of the reset spring 22, and the detection probe 20 is connected with the sealing ring of the workpiece 29 in an abutting mode; after the limiting cylinder 16 is reset, the rotating motor 13 is started, the rotating motor 13 drives the assembling sleeve 18 to rotate through the synchronous belt, the rotating disc 19 is driven to rotate, the detection probe 20 is driven to rotate, in the rotation process of the detection probe 20, the detection probe 20 detects the in-place condition of the sealing ring of the workpiece 29, the sealing ring of the workpiece 29 is not assembled in place, when the sealing ring of the workpiece 29 is protruded inwards, the sealing ring of the workpiece 29 enables the detection probe 20 to jump, in the jumping process of the detection probe 20, the transmission block 23 is extruded through the ball 27, the transmission block 23 rotates around the pin shaft, in the rotation process of the transmission block 23, the connecting rod 21 is extruded through the ball 27, the connecting rod 21 overcomes the elastic force of the reset spring 22 to move downwards, in the downward moving process of the connecting rod 21, the displacement value transmission rod 14 is driven by the pin shaft on the supporting plate 15, the displacement sensor 12 parameterizes the displacement value of the displacement value transmission rod 14, so that the inward convex value of the sealing ring of the workpiece 29 is parameterized; when the sealing ring of the workpiece 29 is not assembled in place, when the sealing ring of the workpiece 29 protrudes outwards, the sealing ring of the workpiece 29 does not extrude the detection probe 20 any more, the detection probe 20 does not extrude the connecting rod 21 any more through the transmission block 23, the connecting rod 21 moves upwards under the elastic force of the return spring 22, the connecting rod 21 drives the displacement value transmission rod 14 to rotate anticlockwise by taking the pin shaft on the supporting plate 15 as an axis through the pin shaft in the process of moving upwards, the end of the displacement value transmission rod 14 pulls the end of the displacement sensor 12 to move downwards, the displacement sensor 12 parameterizes the displacement value of the displacement value transmission rod 14 to parameterize the outward protrusion value of the sealing ring of the workpiece 29, and therefore the parameterization of the inward protrusion value of the sealing ring of the workpiece 29 and the parameteriz.

The in-place detection mechanism for the sealing ring of the caliper cylinder body of the disc brake fixes a workpiece through the matching of a positioning tool and a positioning pressure rod 3, and can automatically detect the workpiece through the matching of an adjusting positioner and a detector, so that the labor intensity can be effectively reduced, and the working efficiency is improved; the detection process can be parameterized through the displacement sensor 12, so that the misjudgment rate can be effectively reduced; the problem of current detection mode intensity of labour high, work efficiency is low and the erroneous judgement rate is higher in the testing process is solved, the specially adapted disc brake calliper cylinder body sealing washer detects and uses in place.

Claims

1. The utility model provides a disc brake calliper cylinder body sealing washer detection mechanism that targets in place, it comprises frame (1), location frock, positioning regulator and detector, its characterized in that: a positioning tool is arranged on the rack (1) through a workpiece lifting cylinder (2), a positioning pressure rod (3) is arranged above the positioning tool, and the positioning pressure rod (3) is fixedly connected with the rack (1) through an assembly bracket (4); a positioning regulator is arranged on the frame (1) on one side of the positioning tool, and a detector is arranged on the positioning regulator on one side of the positioning pressing rod (3).

2. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 1, wherein: the positioning tool is composed of a bottom plate (5), supporting rods (6) and positioning plates (7), and the positioning plates (7) are installed on the bottom plate (5) through the symmetrically arranged supporting rods (6); the positioning tool is movably connected with the workpiece lifting cylinder (2) through a bottom plate (5).

3. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 1, wherein: the positioning regulator consists of a transverse moving cylinder (8), a support frame (9) and a positioning lifting cylinder (10), the support frame (9) is fixedly arranged on a piston rod of the transverse moving cylinder (8), and the positioning lifting cylinder (10) is arranged on the support frame (9); the transverse moving cylinder (8) is fixedly connected with the rack (1), and the support frame (9) is movably connected with the rack (1) through a slide rail.

4. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 1, wherein: the detector comprises an assembly plate (11), a displacement sensor (12), a rotating motor (13), a rotating detection head and a displacement value transmission rod (14), wherein the displacement sensor (12) is arranged on the upper surface of the assembly plate (11), the rotating motor (13) is arranged on the assembly plate (11) on one side of the displacement sensor (12), the rotating detection head is arranged on the assembly plate (11) on the other side of the displacement sensor (12), and the rotating detection head is connected with the rotating motor (13) through a synchronous belt; a displacement value transmission rod (14) is movably mounted on the lower surface of the assembly plate (11) through a support plate (15), one end of the displacement value transmission rod (14) is connected with the end of a displacement sensor (12) penetrating through the assembly plate (11) in an abutting mode, and the other end of the displacement value transmission rod (14) is movably connected with the rotation detection head through a pin shaft; a limiting cylinder (16) is arranged on an assembly plate (11) between the rotary detection head and the displacement sensor (12), and the end of a piston rod of the limiting cylinder (16) is intermittently abutted and connected with a displacement value transmission rod (14).

5. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 4, wherein: the assembling plate (11) is L-shaped, the assembling plate (11) is fixedly connected with a piston rod of the positioning lifting cylinder (10) through an installing rod (17), and the assembling plate (11) is movably connected with the supporting frame (9) through a sliding rail.

6. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 4, wherein: the rotary detection head is composed of an assembly sleeve (18), a rotary disc (19), a detection probe (20), a connecting rod (21), a return spring (22), a transmission block (23) and a workpiece positioning ring (24), the rotary disc (19) is fixedly arranged on the assembly sleeve (18), and the detection probe (20) is movably arranged on the rotary disc (19) through a guide rod; a connecting rod (21) is movably arranged in the assembling sleeve (18) through an assembling bearing (25), a limiting ring (26) is arranged on the inner wall of the assembling sleeve (18), and a return spring (22) is sleeved on the connecting rod (21) between the limiting ring (26) and the assembling bearing (25); a transmission block (23) is movably mounted on the assembly sleeve (18) above the connecting rod (21) through a pin shaft, and the transmission block (23) is respectively movably connected with the detection probe (20) and the connecting rod (21) through balls (27); a workpiece positioning ring (24) is sleeved on the assembling sleeve (18) below the rotating disc (19); the assembly sleeve (18) is movably connected with the assembly plate (11) through a bearing, and the end of the assembly sleeve (18) below the assembly plate (11) is connected with the rotating motor (13) through a synchronous belt; the connecting rod (21) is movably connected with the displacement value transmission rod (14) through a pin shaft; the workpiece positioning ring (24) is fixedly connected with the assembly plate (11).

7. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 6, wherein: the upper circumferential surface of the workpiece positioning ring (24) is conical.

8. The disc brake caliper cylinder seal ring in-place detection mechanism of claim 4, wherein: the end of the displacement value transmission rod (14) is provided with a sliding hole (28), and the sliding hole (28) is connected with the pin shaft in a sliding mode.