Signal tooth angle testing fixture

Abstract

The utility model discloses a signal tooth angle gauge, which relates to the technical field of signal tooth angle gauges, and comprises a base, a central backing ring is rotatably mounted at one corner of the upper end of the base, a central shaft is fixed in the middle of the upper end of the central backing ring, a fixing structure is arranged on the central backing ring, and a first sliding table and a second sliding table are symmetrically fixed at the upper end of the base. A detection structure is arranged on the second sliding table, and a limiting block slides on the first sliding table. According to the utility model, through a cooperation mechanism of the central backing ring, the fixing structure and the limiting block, workpiece positioning is realized, two angle detection functions are further realized, the requirements of an enterprise on a detection tool are effectively reduced, and the purchase, storage and maintenance costs are reduced; in the operation level, axial positioning, circumferential positioning and angle detection can be rapidly completed through simple sliding and fixing operation, operation is easy, convenient and visual, the machining efficiency and the detection speed are improved, the production efficiency and competitiveness of enterprises are greatly improved, and long-term development of the enterprises is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of signal tooth angle gauge technology, specifically a signal tooth angle gauge. Background Technology

[0002] In the field of mechanical manufacturing, especially in the production of key components for engines and transmission systems, the precise angle of the signal gear is a crucial factor in ensuring mechanical performance, operational efficiency, and emissions compliance. (Signal gear, as shown in the attached diagram in the manual) Figure 4 (As shown) is typically used to trigger sensors to control key functions such as ignition timing and shift logic. Its angular accuracy directly affects the engine's output efficiency and emission quality.

[0003] Traditional methods for detecting signal tooth angles often employ dedicated fixtures, with each angle specification corresponding to a set of fixtures. This not only leads to high manufacturing costs but also increases storage space and maintenance complexity. With the increasing diversification and customization of mechanical parts, the limitations of traditional fixtures are becoming increasingly apparent. Especially on production lines, frequent fixture changes not only affect production efficiency but also increase operational complexity and error rates.

[0004] Based on this, a signal tooth angle gauge is now provided, which can eliminate the drawbacks of existing gauges. Utility Model Content

[0005] The purpose of this invention is to provide a signal tooth angle gauge to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A signal tooth angle gauge includes a base, a central washer rotatably mounted at one corner of the upper end of the base, a central shaft fixed at the middle of the upper end of the central washer, a fixing structure provided on the central washer, a slide table one and a slide table two symmetrically fixed at the upper end of the base, a detection structure provided on the slide table two, a limit block sliding on the slide table one, the limit block having a limit groove that mates with the signal tooth of the workpiece, the limit block being fixed to the slide table one by a fixing pin, the fixing structure and the limit block being used for positioning during two angle detections respectively.

[0008] Preferably, the fixing structure includes a positioning pin and a positioning pin hole that passes through the central washer ring. A pin sleeve is installed on the base, and the pin sleeve corresponds to the positioning pin hole. The positioning pin can pass through the positioning pin hole and cooperate with the pin sleeve.

[0009] Preferably, a positioning block is fixed to the upper end of the positioning pin, and the positioning pin and the positioning block are coaxial. The diameter of the positioning pin is smaller than the diameter of the workpiece pin hole, and the diameter of the positioning block is larger than the diameter of the workpiece pin hole.

[0010] Preferably, the detection structure includes a detection block slidably mounted on the slide table 2. The detection block has a stepped structure and includes a stop end and a through end. The stop end is located at one end of the detection block, and the through end is located at the end of the stop end away from the main body of the detection block. The size of the through end is smaller than that of the stop end, so as to allow the workpiece signal tooth angle to pass smoothly when it meets the preset range, thereby verifying the qualification of the angle detection.

[0011] Preferably, one side of the limiting groove on the limiting block is a straight edge, and the other side is an inclined edge.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model achieves workpiece positioning through the collaborative mechanism of the central pad ring, the fixed structure, and the limiting block, thereby enabling two angle detection functions. This effectively reduces the enterprise's need for inspection tools and lowers the purchase, storage, and maintenance costs. At the operational level, axial positioning, circumferential positioning, and angle detection can all be quickly completed through simple sliding and fixing operations. The operation is simple and intuitive, improving processing efficiency and detection speed, greatly enhancing the enterprise's production efficiency and competitiveness, and contributing to the enterprise's long-term development. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a structural diagram of the bottom surface of this utility model.

[0016] Figure 3 This utility model Figure 1 A schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the workpiece to be tested according to this utility model.

[0018] Figure reference numerals: 11. Base; 12. Center washer; 13. Center shaft; 14. Locating pin hole; 15. Locating pin; 151. Locating block; 16. Pin sleeve; 17. Slide 1; 18. Limiting block; 19. Fixing pin; 20. Slide 2; 21. Detection block; 211. Stop end; 212. Through end. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] In one embodiment, such as Figures 1-3As shown, a signal tooth angle gauge includes a base 11. A central washer 12 is rotatably mounted at one corner of the upper end of the base 11. A central shaft 13 is fixed to the middle of the upper end of the central washer 12. A fixing structure is provided on the central washer 12. A slide table 17 and a slide table 20 are symmetrically fixed to the upper end of the base 11. A detection structure is provided on the slide table 20. A limiting block 18 slides on the slide table 17. The limiting block 18 has a limiting groove that cooperates with the signal tooth of the workpiece. The limiting block 18 can be fixed to the slide table 17 by a fixing pin 19. The fixing structure and the limiting block 18 are used for positioning during two angle detections, respectively.

[0021] In this embodiment, when detecting the angle from the pin hole to the first tooth: the workpiece is placed on the base 11, with its center surface in contact with the center washer 12 to complete axial positioning, and ensuring that the center hole of the workpiece is in contact with the center shaft 13. The workpiece and the center washer 12 are fixed using a fixing structure. The detection block 21 on the sliding slide 20 is inserted into the signal tooth of the workpiece.

[0022] Determine the angle's compliance: If the pass end 212 of the detection block 21 can be inserted into the signal tooth, while the stop end 211 cannot, then the angle is qualified.

[0023] At this time, the limit block 18 on slide 17 needs to be returned to its original position and will not participate in positioning.

[0024] When detecting the angle of the first to twentieth teeth: Place the workpiece on base 11 to complete axial positioning, ensuring the workpiece's center hole contacts the central shaft 13. Slide the limiting block 18 on slide 17 and insert it into the first tooth of the workpiece, fixing it to slide 17 via fixing pin 19 to complete circumferential positioning. Slide the detection block 21 on slide 20 until it inserts into the workpiece's signal tooth.

[0025] Determine the angle's compliance: If the pass end 212 of the detection block 21 can pass through the signal tooth, while the stop end 211 cannot, then the angle is qualified.

[0026] At this point, the fixed structure must be in a non-fixed state and not participate in positioning.

[0027] In an optional embodiment, the fixing structure includes a positioning pin 15 and a positioning pin hole 14 through which the central pad ring 12 is opened. A pin sleeve 16 is installed on the base 11. The pin sleeve 16 is positioned corresponding to the positioning pin hole 14. The positioning pin 15 can pass through the positioning pin hole 14 and cooperate with the pin sleeve 16.

[0028] It should be noted that the locating pin 15 can pass through the locating pin hole 14 and then fit tightly with the pin sleeve 16, thereby achieving a stable fixation of the workpiece.

[0029] In an optional embodiment, a positioning block 151 is fixed to the upper end of the positioning pin 15, and the positioning pin 15 and the positioning block 151 are coaxial. The diameter of the positioning pin 15 is smaller than the diameter of the workpiece pin hole, and the diameter of the positioning block 151 is larger than the diameter of the workpiece pin hole.

[0030] It should be noted that the diameter of the locating pin 15 is smaller than that of the workpiece pin hole to ensure that it can be smoothly inserted, while the diameter of the locating block 151 is larger than that of the workpiece pin hole to achieve circumferential positioning.

[0031] In an optional embodiment, the detection structure includes a detection block 21 slidably mounted on a slide table 20. The detection block 21 has a stepped structure and includes a stop end 211 and a through end 212. The stop end 211 is located at one end of the detection block 21, and the through end 212 is located at the end of the stop end 211 away from the main body of the detection block 21. The through end 212 is smaller than the stop end 211 and is used to allow the workpiece signal tooth angle to pass smoothly when it meets the preset range, so as to verify the qualification of the angle detection.

[0032] It should be noted that the stop end 211 is located at one end of the detection block 21 and its size is designed to be relatively large, while the pass end 212 is located at the end of the stop end 211 that is far away from the main body of the detection block 21 and its size is smaller than that of the stop end 211. This design allows the pass end 212 to pass smoothly when the workpiece signal tooth angle meets the preset range, thereby verifying the qualification of the angle detection.

[0033] In an optional embodiment, the limiting groove on the limiting block 18 has one straight edge and the other beveled edge.

[0034] It should be noted that the straight-edge limit design is mainly to provide a stable positioning reference. The introduction of the bevel can, to some extent, offset the positioning gap caused by these deviations, allowing the limit block 18 to better adapt to the shape and size of different workpiece signal teeth, thereby improving the accuracy and flexibility of detection.

[0035] The above embodiments disclose a signal tooth angle gauge. When detecting the angle from the pin hole to the first tooth on a workpiece, the workpiece is placed on the gauge base 11, with its center surface in contact with the center washer 12 for axial positioning, and its center hole in contact with the center shaft 13. A positioning pin 15 is inserted into a pin sleeve 16 through the pin hole in the workpiece, and a positioning block 151 contacts the workpiece for circumferential positioning. A detection block 21 on the sliding slide 20 is inserted into the signal tooth of the workpiece.

[0036] Determining if the angle dimension is qualified: When the pass end 212 of the detection block 21 can be inserted into the signal tooth, but the stop end 211 cannot be inserted, the angle dimension is qualified.

[0037] When detecting at this angle, the limit block 18 on the slide 17 needs to return to its original position and leave the positioning state.

[0038] When detecting the angle between the first and twentieth teeth on a workpiece, the workpiece is placed on the fixture base 11, with its center surface in contact with the center washer 12 to complete axial positioning. The center hole of the workpiece contacts the center shaft 13. The limiting block 18 on slide table 17 is slid and inserted into the first tooth of the workpiece, and the limiting block 18 is connected to slide table 17 via the fixing pin 19, thereby completing circumferential positioning. The detection block 21 on slide table 20 is slid and inserted into the signal tooth of the workpiece.

[0039] Determining if the angle dimension is qualified: When the pass end 212 of the detection block 21 can pass through the signal tooth, but the stop end 211 cannot pass through, the angle dimension is qualified.

[0040] When testing at this angle, the positioning pin 15 needs to be pulled out to remove it from the positioning state.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A signal tooth angle gauge, characterized in that, The system includes a base (11), a central washer (12) is rotatably mounted at one corner of the upper end of the base (11), a central shaft (13) is fixed at the middle of the upper end of the central washer (12), a fixing structure is provided on the central washer (12), a slide table one (17) and a slide table two (20) are symmetrically fixed at the upper end of the base (11), a detection structure is provided on the slide table two (20), a limit block (18) slides on the slide table one (17), a limit groove is provided on the limit block (18) to cooperate with the workpiece signal teeth, the limit block (18) can be fixed to the slide table one (17) by a fixing pin (19), the fixing structure and the limit block (18) are used for positioning during two angle detections respectively.

2. The signal tooth angle gauge according to claim 1, characterized in that, The fixing structure includes a positioning pin (15) and a positioning pin hole (14) through which the central washer (12) is opened. A pin sleeve (16) is installed on the base (11). The pin sleeve (16) is positioned corresponding to the positioning pin hole (14). The positioning pin (15) can pass through the positioning pin hole (14) and cooperate with the pin sleeve (16).

3. The signal tooth angle gauge according to claim 2, characterized in that, The upper end of the positioning pin (15) is fixed with a positioning block (151), and the positioning pin (15) and the positioning block (151) are coaxial. The diameter of the positioning pin (15) is smaller than the diameter of the workpiece pin hole, and the diameter of the positioning block (151) is larger than the diameter of the workpiece pin hole.

4. The signal tooth angle gauge according to claim 1, characterized in that, The detection structure includes a detection block (21) slidably mounted on a slide table (20). The detection block (21) has a stepped structure and includes a stop end (211) and a through end (212). The stop end (211) is located at one end of the detection block (21), and the through end (212) is located at the end of the stop end (211) away from the main body of the detection block (21). The through end (212) is smaller than the stop end (211) and is used to pass smoothly when the workpiece signal tooth angle meets the preset range, so as to verify the qualification of the angle detection.

5. The signal tooth angle gauge according to claim 1, characterized in that, The limiting groove on the limiting block (18) has a straight edge on one side and an inclined edge on the other side.

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