Brake disc thickness measuring tool

Abstract

The utility model discloses a brake disc thickness measuring tool, which relates to the field of thickness measurement and comprises a fixing frame, a sliding groove is vertically arranged inside the fixing frame, and a lifting mechanism is arranged at the top of the fixing frame and inside the sliding groove. The lifting mechanism is in threaded connection with two support mechanisms penetrating to the exterior of the fixing frame, sliding rods are slidably mounted on the support mechanisms, conductive mechanisms are slidably mounted in the ends, close to each other, of the two sliding rods, and fixing rings are fixedly connected to the outer walls of the sliding rods; a synchronous rod is fixedly connected to the periphery of the fixing ring, and an infrared unit is fixedly installed at the end, away from the fixing ring, of the synchronous rod. According to the utility model, through the arrangement of the conductive mechanism, after the loop of the conductive mechanism is connected, the lifting mechanism can stop moving, so that the phenomenon of excessive movement or insufficient movement is avoided, and the measurement accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the field of thickness measurement, in particular to a brake disc thickness measuring tool. Background Art

[0002] The thickness of brake discs needs to be measured after production to ensure the qualified performance of the product.

[0003] Existing measurement methods include mechanical measurement, laser measurement and infrared measurement. Mechanical measurement is manual measurement using a vernier caliper, while laser measurement and infrared measurement utilize the reflection of light for measurement, which are more efficient than mechanical measurement.

[0004] In infrared measurement, the transmitting end of the infrared transmitter and the receiving end of the infrared receiver need to be flush with the upper and lower surfaces of the brake disc. A lifting mechanism or a driving mechanism is often used to drive them to move. However, excessive or insufficient movement may occur during the movement process. At this time, manual calibration is required, resulting in reduced efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a brake disc thickness measuring tool in order to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake disc thickness measuring tool, comprising a fixed frame, a sliding groove is vertically opened inside the fixed frame, a lifting mechanism is arranged on the top of the fixed frame and inside the sliding groove, two bracket mechanisms are threadedly connected to the lifting mechanism and penetrate into the outside of the fixed frame, a sliding rod is slidably installed on the bracket mechanism, a conductive mechanism is slidably installed inside the ends of the two sliding rods close to each other, a fixing ring is fixedly connected to the outer wall of the sliding rod, a synchronization rod is fixedly connected to the outer periphery of the fixing ring, and an infrared unit is fixedly installed on the end of the synchronization rod away from the fixing ring.

[0007] As a further solution of the utility model: the lifting mechanism includes a forward and reverse motor fixedly installed on the top of the fixed frame, the output shaft of the forward and reverse motor passes through the inner cavity of the sliding groove and is connected to a bidirectional screw, the bottom end of the bidirectional screw and the output shaft of the sliding groove are rotatably connected to the fixed frame through bearings, the outer wall of the bidirectional screw is threadedly connected to two sliding blocks slidably connected to the sliding groove, and the two sliding blocks are symmetrically arranged up and down.

[0008] As a further solution of the utility model: the bracket mechanism includes a connecting plate fixedly connected to the outer side of the sliding block, a fixing rod is welded to one end of the connecting plate, an L-shaped frame is fixedly installed at one end of the two connecting plates away from each other, and a limiting ring is fixedly installed at one end of the fixing rod away from the connecting plate.

[0009] As a further solution of the utility model: the limiting ring is connected to the sliding rod for up and down sliding movement, and one end of the sliding rod passes through the L-shaped frame and is connected to the L-shaped frame for up and down sliding movement, and the ends of the two limiting rings that are away from each other are both formed with anti-slip plates, and a No. 1 spring is fixedly connected between the anti-slip plate and the transverse plate portion of the connecting plate.

[0010] As a further solution of the utility model: the conductive mechanism includes a receiving groove opened at one end of the two sliding rods close to each other, the inner wall of the receiving groove is slidably connected to a push rod up and down, one end of the push rod is located inside the receiving groove and is fixedly connected to a lower insulating plate, the inner cavity of the lower insulating plate has two symmetrical intermediate conductive sheets, the two intermediate conductive sheets are electrically connected through a wire, the inner wall of the receiving groove is fixedly connected to an upper insulating plate, the upper insulating plate is fixedly connected to a positive conductive sheet and a negative conductive sheet, and the positive conductive sheet, the negative conductive sheet and the two intermediate conductive sheets are aligned in the up and down directions.

[0011] As a further solution of the utility model: a No. 2 spring is fixedly connected between one end of the support rod located inside the accommodating groove and the end of the inner wall of the accommodating groove.

[0012] As a further solution of the utility model: the end plate of the support rod located at one end of the inner wall of the accommodating groove is consistent with the inner wall of the wide part of the accommodating groove, and the cross-sections of both are elliptical.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting up a conductive mechanism, after the circuit of the conductive mechanism is connected, the lifting mechanism can stop moving to avoid excessive or insufficient movement, thereby ensuring the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0017] Figure 3 It is a schematic diagram of the installation of the conductive mechanism of the utility model;

[0018] Figure 4 It is a schematic diagram of the installation of the positive electrode conductive sheet and the negative electrode conductive sheet of the utility model.

[0019] In the figure: 1. fixed frame; 2. sliding groove; 3. bidirectional screw; 4. forward and reverse motor; 5. sliding block; 6. connecting plate; 7. L-shaped frame; 8. fixed rod; 9. limit ring; 10. fixed ring; 11. synchronization rod; 12. infrared unit; 13. sliding rod; 14. No. 1 spring; 15. push rod; 16. receiving groove; 17. No. 2 spring; 18. lower insulating plate; 19. intermediate conductive sheet; 20. upper insulating plate; 21. positive conductive sheet; 22. negative conductive sheet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 to Figure 4 In an embodiment of the utility model, a brake disc thickness measuring tool includes a fixed frame 1, a sliding groove 2 is vertically opened inside the fixed frame 1, a lifting mechanism is arranged on the top of the fixed frame 1 and inside the sliding groove 2, two bracket mechanisms that penetrate the outside of the fixed frame 1 are threadedly connected to the lifting mechanism, a sliding rod 13 is slidably installed on the bracket mechanism, a conductive mechanism is slidably installed inside one end of the two sliding rods 13 that are close to each other, and a fixing ring 10 is fixedly connected to the outer wall of the sliding rod 13, a synchronization rod 11 is fixedly connected to the outer periphery of the fixing ring 10, and an infrared unit 12 is fixedly installed on the end of the synchronization rod 11 away from the fixing ring 10.

[0022] In this embodiment: first, the lifting mechanism is started, and the lifting mechanism drives the two sets of bracket mechanisms to move toward each other, and the two sets of bracket mechanisms respectively drive the sliding rods 13 connected thereto to move synchronously, and the two sets of sliding rods 13 move toward each other to drive the conductive mechanism to move, and the conductive mechanism contacts the upper and lower end surfaces of the brake disc. At this time, the conductive mechanism is displaced and the circuit is connected, and the electrical signal is sent to the controller, and the controller controls the lifting mechanism to move synchronously. At the same time, the infrared ray emitted by the infrared transmitter in the infrared unit 12 is received by the infrared receiver of the infrared unit 12, and the thickness of the roller disc can be calculated by the calculation circuit;

[0023] It should be noted that the infrared generator is connected to the upper sliding rod 13 through the synchronization rod 11, and the infrared receiver is connected to the lower sliding rod 13 through the synchronization rod 11.

[0024] Please refer to Figure 1 and Figure 2The lifting mechanism includes a forward and reverse motor 4 fixedly installed on the top of the fixed frame 1. The output shaft of the forward and reverse motor 4 passes through the inner cavity of the sliding groove 2 and is connected to a bidirectional screw 3. The bottom end of the bidirectional screw 3 and the output shaft of the sliding groove 2 are both rotatably connected to the fixed frame 1 through bearings. The outer wall of the bidirectional screw 3 is threadedly connected to two sliding blocks 5 that are slidably connected to the sliding groove 2. The two sliding blocks 5 are symmetrically arranged up and down.

[0025] In this embodiment: by starting the forward and reverse motor 4, the forward and reverse motor 4 drives the bidirectional screw 3 to rotate. Since the two sliding blocks 5 are respectively threadedly connected with the positive thread and the negative thread on the bidirectional screw 3, the two sliding blocks 5 move toward each other or oppositely.

[0026] Please refer to Figure 1 and Figure 2 The bracket mechanism includes a connecting plate 6 fixedly connected to the outer side of the sliding block 5, a fixing rod 8 is welded to one end of the connecting plate 6, an L-shaped frame 7 is fixedly installed on the ends of the two connecting plates 6 away from each other, and a limiting ring 9 is fixedly installed on the end of the fixing rod 8 away from the connecting plate 6.

[0027] In this embodiment, the moving sliding block 5 drives the connecting plate 6 connected thereto to move, the connecting plate 6 drives the L-shaped frame 7 and the fixing rod 8 to move synchronously, and the fixing rod 8 drives the limiting ring 9 to move synchronously.

[0028] Please refer to Figure 1 and Figure 2 The limit ring 9 is connected to the sliding rod 13 by sliding up and down, and one end of the sliding rod 13 passes through the L-shaped frame 7 and is connected to the L-shaped frame 7 by sliding up and down. The ends of the two limit rings 9 that are away from each other are both formed with anti-slip plates, and a No. 1 spring 14 is fixedly connected between the anti-slip plate and the horizontal plate portion of the connecting plate 6.

[0029] In this embodiment: when the two sliding rods 13 move synchronously with the L-shaped frame 7, especially when they are in the opposite and away state, if the top of the sliding rod 13 contacts an obstacle, the No. 1 spring 14 can provide a buffer to avoid damage to the device caused by a hard collision.

[0030] Please refer to Figure 3 and Figure 4The conductive mechanism includes a receiving groove 16 opened at one end of the two sliding rods 13 close to each other, and the inner wall of the receiving groove 16 is slidably connected to a push rod 15, one end of the push rod 15 is located inside the receiving groove 16 and is fixedly connected to a lower insulating plate 18, and the inner cavity of the lower insulating plate 18 has two symmetrical intermediate conductive sheets 19, and the two intermediate conductive sheets 19 are electrically connected through wires, and the inner wall of the receiving groove 16 is fixedly connected to an upper insulating plate 20, and a positive conductive sheet 21 and a negative conductive sheet 22 are fixedly connected to the upper insulating plate 20, and the positive conductive sheet 21, the negative conductive sheet 22 and the two intermediate conductive sheets 19 are aligned in the upper and lower directions.

[0031] In this embodiment: when the two sliding rods 13 move toward each other and approach each other, the two sliding rods 13 drive the push rod 15 to move and contact the upper and lower surfaces of the brake disc. At this time, the push rod 15 is received and moves along the accommodating groove 16, and the push rod 15 drives the lower insulating plate 18 to move, and the lower insulating plate 18 drives the intermediate conductive sheet 19 to move synchronously. When the two intermediate conductive sheets 19 are respectively in contact with the positive conductive sheet 21 and the negative conductive sheet 22, the circuit is closed at this time, and the electrical signal is transmitted to the controller. The controller controls the forward and reverse motor 4 to stop running to avoid excessive pressing. When the forward and reverse motor 4 is controlled to run in the reverse direction to achieve the purpose of moving the two sliding rods 13 away from each other, the other circuit of the forward and reverse motor 4 is connected through the external control switch, so as to realize the opposite movement of the two sliding rods 13 after the measurement is completed.

[0032] Please refer to Figure 3 and Figure 4 A No. 2 spring 17 is fixedly connected between one end of the push rod 15 located inside the accommodating groove 16 and the inner wall end of the accommodating groove 16 .

[0033] In this embodiment: the second spring 17 is compressed during the movement of the push rod 15, and when the two sliding blocks 5 move in opposite directions, the second spring 17 assists the push rod 15 to reset;

[0034] It should be noted that the infrared transmitter and the infrared receiver of the infrared unit 12 are flush with the hemispherical end of the moved abutment rod 15, but not flush with the hemispherical end of the reset abutment rod 15, so as to ensure the accuracy of thickness measurement.

[0035] Please refer to Figure 3 and Figure 4 The end plate of the push rod 15 located at one end of the inner wall of the receiving groove 16 is consistent with the inner wall of the wide part of the receiving groove 16, and the cross-sections of both are elliptical.

[0036] In this embodiment, the elliptical structure can prevent the stopper 15 from rotating, which would cause the intermediate conductive sheet 19 to be misaligned with the positive conductive sheet 21 and the negative conductive sheet 22 .

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A brake disc thickness measuring tool, comprising a fixing frame (1), characterized in that: A sliding groove (2) is vertically provided inside the fixing frame (1), and a lifting mechanism is arranged on the top of the fixing frame (1) and inside the sliding groove (2). Two bracket mechanisms that penetrate the outside of the fixing frame (1) are threadedly connected to the lifting mechanism, and a sliding rod (13) is slidably installed on the bracket mechanism. A conductive mechanism is slidably installed inside the ends of the two sliding rods (13) that are close to each other, and the outer wall of the sliding rod (13) is fixedly connected to a fixing ring (10), and the outer periphery of the fixing ring (10) is fixedly connected to a synchronization rod (11), and the end of the synchronization rod (11) away from the fixing ring (10) is fixedly installed with an infrared unit (12).

2. A brake disc thickness measuring tool according to claim 1, characterized in that: The lifting mechanism comprises a forward and reverse motor (4) fixedly mounted on the top of the fixed frame (1); the output shaft of the forward and reverse motor (4) penetrates the inner cavity of the sliding groove (2) and is connected to a bidirectional screw (3); the bottom end of the bidirectional screw (3) and the output shaft of the sliding groove (2) are both rotatably connected to the fixed frame (1) via bearings; the outer wall of the bidirectional screw (3) is threadedly connected to two sliding blocks (5) slidably connected to the sliding groove (2); the two sliding blocks (5) are symmetrically arranged up and down.

3. A brake disc thickness measuring tool according to claim 2, characterized in that: The bracket mechanism comprises a connecting plate (6) fixedly connected to the outer side of the sliding block (5), a fixing rod (8) being welded to one end of the connecting plate (6), an L-shaped frame (7) being fixedly mounted on the ends of the two connecting plates (6) away from each other, and a limiting ring (9) being fixedly mounted on the end of the fixing rod (8) away from the connecting plate (6).

4. A brake disc thickness measuring tool according to claim 3, characterized in that: The limiting ring (9) is connected to the sliding rod (13) in an up-and-down sliding manner, and one end of the sliding rod (13) passes through the L-shaped frame (7) and is connected to the L-shaped frame (7) in an up-and-down sliding manner. The ends of the two limiting rings (9) that are away from each other are both formed with anti-slip plates, and a No. 1 spring (14) is fixedly connected between the anti-slip plate and the transverse plate portion of the connecting plate (6).

5. A brake disc thickness measuring tool according to claim 4, characterized in that: The conductive mechanism comprises a receiving groove (16) opened at one end of the two sliding rods (13) close to each other, the inner wall of the receiving groove (16) is slidably connected to a push rod (15) up and down, one end of the push rod (15) is located inside the receiving groove (16) and is fixedly connected to a lower insulating plate (18), the inner cavity of the lower insulating plate (18) has two symmetrical intermediate conductive sheets (19), the two intermediate conductive sheets (19) are electrically connected through a wire, the inner wall of the receiving groove (16) is fixedly connected to an upper insulating plate (20), the upper insulating plate (20) is fixedly connected to a positive conductive sheet (21) and a negative conductive sheet (22), the positive conductive sheet (21), the negative conductive sheet (22) and the two intermediate conductive sheets (19) are aligned in the upper and lower directions.

6. A brake disc thickness measuring tool according to claim 5, characterized in that: A No. 2 spring (17) is fixedly connected between one end of the push rod (15) located inside the receiving groove (16) and the end of the inner wall of the receiving groove (16).

7. A brake disc thickness measuring tool according to claim 6, characterized in that: The end plate of the push rod (15) located at one end of the inner wall of the receiving groove (16) matches the inner wall of the wide portion of the receiving groove (16), and both have elliptical cross-sections.

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