Tire armature assembly detection fixture

Abstract

The utility model belongs to elevator brake technology field especially, and it is related to the detection fixture of half -arc armature assembly, in view of the problem that the existing detection procedure is complicated, the following scheme is presented, including base, the top of base is provided with the clamping slot, and the inside of clamping slot is provided with detection mechanism, detection mechanism includes the carrier plate, and the carrier plate slidingly connects in the inside of clamping slot. This device is accomodated to half -arc armature assembly through the installation groove, and can push the carrier plate along the clamping slot sliding, make it with the accurate contact of dial indicator probe, and one -time three key size synchronous detection is completed, completely replaces traditional measurement mode, and the detection time -consuming is greatly shortened, and the error superposition caused by multiple positioning is avoided, and the detection precision and result accuracy are improved significantly, simultaneously, before detection, through the positioning hole insertion positioning shaft, and the contact zero block is realized dial indicator probe pre -adhesion zero, and the initial error is eliminated from the source, and the reliability of subsequent detection data is built solid foundation.

Description

Technical Field

[0001] This utility model relates to a testing fixture for armature components, specifically a testing jig for armature components, belonging to the field of elevator brake technology. Background Technology

[0002] The brake armature assembly is the core actuator in an electromagnetic brake, driven by electromagnetic force to switch between braking and release. It consists of a magnetic metal body and supporting components. Its performance directly affects the brake's braking response, accuracy, and service life. Therefore, it is necessary to ensure that its dimensions and assembly accuracy meet the requirements through testing to avoid brake failure or equipment malfunction.

[0003] An existing patent (publication number: CN204359260U) discloses a fixture for testing residual deformation of an armature assembly. Because the device includes a base and gauge blocks, and the entire testing equipment is fixed to the base, after the workpiece is fixed in a precision vise, one end of the workpiece rests on the gauge blocks. Due to specific requirements on the height of the gauge blocks, the center of the workpiece is aligned with the center of the depth gauge after fixing, reducing the need to accurately locate the center each time during the experiment and improving testing efficiency. In practical use, although the semi-circular armature assembly can be tested using the gauge blocks and other components, three sets of test data need to be collected for this workpiece, requiring repeated adjustments to the equipment. This makes the testing process cumbersome and reduces testing efficiency and measurement accuracy. Utility Model Content

[0004] This utility model provides a testing fixture for lifting armature components to solve the problem of cumbersome testing procedures.

[0005] The present invention achieves the above objectives through the following technical solution: a testing fixture for a lifting armature assembly, including a base, wherein a slot is provided at the top of the base, and a testing mechanism is provided inside the slot;

[0006] The testing mechanism includes a support plate, which is slidably connected inside the slot, and a support block is movably connected above the support plate. The top of the support block has a mounting groove, and a bracket is fixedly installed on one side of the slot at the top of the base, with a dial indicator embedded in the axial end of the bracket.

[0007] As a further embodiment of this utility model: a sleeve block is fixedly installed at the top of the support plate, and a through rod extends out from the inside of the sleeve block, with a spring fixedly installed at one end of the through rod that enters the sleeve block.

[0008] As a further embodiment of this utility model: a positioning hole is provided on one side of the top mounting groove of the bearing block, and a positioning shaft extends through the inside of the positioning hole, and a zeroing block is fixedly installed at one end of the positioning shaft.

[0009] As a further improvement of this utility model: the support plate and the slot form a sliding structure, and the support plate and the base form a sliding structure.

[0010] As a further improvement of this utility model: the positioning shaft forms a sliding structure with the bearing block through the positioning hole, and the bearing block and the zeroing block are in close contact.

[0011] As a further improvement of this utility model: fixing plates are fixedly installed on both sides of the outer wall of the support plate, and an adjustment mechanism is provided above the fixing plates.

[0012] As a further embodiment of this utility model: the adjustment mechanism includes a support plate, which is fixedly installed on the top of the fixed plate, and a rotating shaft is rotatably connected to one side of the support plate. A bidirectional threaded rod is fixedly installed at one end of the rotating shaft, and an abutment block is slidably connected to the outer wall of the bidirectional threaded rod.

[0013] As a further improvement of this utility model: a guide groove is provided at the top of the support plate corresponding to the position of the contact block, and a guide block is fixedly installed at the bottom of the contact block corresponding to the position of the guide groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. This device houses the semi-circular armature assembly through a mounting slot and can push the support plate to slide along the slot, making it precisely contact the dial indicator probe. It can complete the simultaneous detection of three key dimensions in one go, completely replacing the traditional multi-stage measurement mode, greatly shortening the detection time, and avoiding the accumulation of errors caused by multiple positioning. The detection accuracy and result accuracy are significantly improved. In addition, before detection, the positioning shaft is inserted through the positioning hole, which abuts against the zeroing block to make the dial indicator probe pre-fit and zero, eliminating the initial error from the source and laying a solid foundation for the reliability of subsequent detection data.

[0016] 2. This device drives the contact block to insert between the support plate and the bearing block by rotating the rotating shaft and the bidirectional threaded rod. The inclined structure design allows the contact block to be flexibly adapted to the thickness of the armature assembly, forming a stable support. This effectively suppresses the loosening and shaking of the bearing block during the detection process, ensuring the stability of data acquisition. At the same time, when the contact block is displaced, it slides along the guide groove through the guide block to achieve smooth adjustment, avoiding detection deviations caused by offset and misalignment, further enhancing detection accuracy, greatly improving the quality and efficiency of detection work, and reducing labor costs and operating difficulty. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the sleeve block structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the through-rod structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the positioning shaft structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the contact block structure of this utility model.

[0022] In the diagram: 1. Base; 2. Slot; 3. Detection mechanism; 301. Support plate; 302. Bearing block; 303. Mounting slot; 304. Bracket; 305. Dial indicator; 306. Sleeve block; 307. Through rod; 308. Spring; 309. Positioning hole; 310. Positioning shaft; 311. Zeroing block; 4. Fixing plate; 5. Adjustment mechanism; 501. Support plate; 502. Rotating shaft; 503. Bidirectional threaded rod; 504. Contact block; 505. Guide slot; 506. Guide block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] like Figures 1 to 5 As shown, the lifting armature assembly testing fixture includes a base 1, with a slot 2 at the top of the base 1. A testing mechanism 3 is installed inside the slot 2. The testing mechanism 3 includes a support plate 301, which is slidably connected inside the slot 2. A bearing block 302 is movably connected above the support plate 301. A placement groove 303 is provided at the top of the bearing block 302. A bracket 304 is fixedly installed on one side of the slot 2 at the top of the base 1. A dial indicator 305 is embedded in the axial end of the bracket 304. Three sets of dial indicators 305 are fixed above the base 1 by the bracket 304. Then, a semi-circular armature assembly is placed in the placement groove 303. The support plate 301 is then pushed to slide along the slot 2 on the base 1, so that it can contact the probes of the three sets of dial indicators 305. Three required dimensions (radianity / D1, D2 / parallelism) can be tested at the same time.

[0026] Furthermore, a sleeve block 306 is fixedly installed at the top of the support plate 301, and a through rod 307 extends out of the sleeve block 306. A spring 308 is fixedly installed at one end of the through rod 307 that enters the sleeve block 306. With the sleeve block 306 and the through rod 307 movably connected, and with the elastic push of the spring 308, the height of the support block 302 can be adjusted according to the size of the armature assembly.

[0027] Furthermore, a positioning hole 309 is provided on one side of the mounting groove 303 at the top of the support block 302. A positioning shaft 310 extends through the positioning hole 309, and a zeroing block 311 is fixedly installed at one end of the positioning shaft 310. By inserting the positioning shaft 310 through the positioning hole 309, the zeroing block 311 can be made to abut against the probe of the dial indicator 305 in advance, thereby zeroing the probe and improving the accuracy of subsequent tests.

[0028] Furthermore, a sliding structure is formed between the support plate 301 and the slot 2, and a sliding structure is formed between the support plate 301 and the base 1; the support plate 301 is slidably connected to the base 1 through the slot 2, so that the bearing block 302 can drive the armature assembly to move stably under manual pushing, and make contact with the dial indicator 305 for detection.

[0029] Furthermore, the positioning shaft 310 forms a sliding structure with the bearing block 302 through the positioning hole 309, and the bearing block 302 is in close contact with the zeroing block 311; the engagement of the positioning shaft 310 and the positioning hole 309 facilitates the disassembly and placement of the zeroing block 311.

[0030] Example 2

[0031] An improvement based on Embodiment 1: Fixing plates 4 are fixedly installed on both sides of the outer wall of the support plate 301, and an adjustment mechanism 5 is provided above the fixing plates 4; the fixing plates 4 support the adjustment mechanism 5, so that it can move synchronously with the support plate 301.

[0032] Furthermore, the adjustment mechanism 5 includes a support plate 501, which is fixedly installed on the top of the fixed plate 4. A rotating shaft 502 is rotatably connected to one side of the support plate 501. A bidirectional threaded rod 503 is fixedly installed at one end of the rotating shaft 502. An abutment block 504 is slidably connected to the outer wall of the bidirectional threaded rod 503. By rotating and adjusting the rotating shaft 502, the abutment block 504 can be inserted between the support plate 301 and the bearing block 302 via the bidirectional threaded rod 503. The abutment block 504 has an inclined structure and is adjusted according to the size of the armature assembly to keep the bearing block 302 stable.

[0033] Furthermore, a guide groove 505 is provided at the top of the support plate 301 corresponding to the position of the contact block 504, and a guide block 506 is fixedly installed at the bottom of the contact block 504 corresponding to the position of the guide groove 505; during the displacement of the contact block 504, it slides along the guide groove 505 of the support plate 301 via the guide block 506, keeping the adjustment process stable and avoiding loosening.

[0034] Working principle: First, three sets of dial indicators 305 are fixed above the base 1 by the bracket 304. Then, a semi-circular armature assembly is placed in the mounting slot 303, pushing the support plate 301 to slide along the slot 2 on the base 1, so that it contacts the probes of the three sets of dial indicators 305. The detection of three required dimensions can be completed at one time, which not only improves the detection efficiency, but also effectively improves the detection accuracy. At the same time, the sleeve block 306 is movably connected to the through rod 307. With the elastic thrust of the spring 308, the bearing block 302 can adjust its height according to the size of the armature assembly. The positioning shaft 310 is inserted through the positioning hole 309 to abut against the zeroing block 311 to pre-fit the probes of the dial indicator 305, realizing zeroing before detection, and further ensuring the accuracy of subsequent detection.

[0035] The rotating shaft 502 is supported on the fixed plate 4 by the support plate 501 and can move synchronously with the support plate 301. Rotating the rotating shaft 502 causes the abutment block 504 to be inserted between the support plate 301 and the bearing block 302 through the bidirectional threaded rod 503. The abutment block 504 adopts an inclined structure and can be flexibly adjusted according to the size of the armature assembly, effectively maintaining the stability of the bearing block 302, avoiding loosening during the testing process, and ensuring data accuracy. When the abutment block 504 moves, it slides along the guide groove 505 of the support plate 301 through the guide block 506 to ensure a smooth adjustment process and prevent deviation and loosening.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A testing fixture for lifting armature components, comprising a base (1), characterized in that: The top of the base (1) is provided with a slot (2), and a detection mechanism (3) is provided inside the slot (2); The testing mechanism (3) includes a support plate (301), which is slidably connected inside the slot (2), and a support block (302) is movably connected above the support plate (301). The top of the support block (302) is provided with a mounting groove (303). The top of the base (1) is fixedly installed with a bracket (304) on one side of the slot (2), and a dial indicator (305) is embedded in the axial end of the bracket (304).

2. The lifting armature assembly testing fixture according to claim 1, characterized in that: A sleeve block (306) is fixedly installed at the top of the support plate (301), and a through rod (307) extends through the inside of the sleeve block (306). A spring (308) is fixedly installed at one end of the through rod (307) that enters the sleeve block (306).

3. The lifting armature assembly testing fixture according to claim 1, characterized in that: A positioning hole (309) is provided on one side of the mounting groove (303) at the top of the bearing block (302), and a positioning shaft (310) extends through the inside of the positioning hole (309). A zeroing block (311) is fixedly installed at one end of the positioning shaft (310).

4. The lifting armature assembly testing fixture according to claim 1, characterized in that: The support plate (301) and the slot (2) form a sliding structure, and the support plate (301) and the base (1) form a sliding structure.

5. The lifting armature assembly testing fixture according to claim 3, characterized in that: The positioning shaft (310) forms a sliding structure with the bearing block (302) through the positioning hole (309), and the bearing block (302) is in close contact with the zeroing block (311).

6. The lifting armature assembly testing fixture according to claim 1, characterized in that: The support plate (301) has fixed plates (4) fixedly installed on both sides of its outer wall, and an adjustment mechanism (5) is provided above the fixed plates (4).

7. The lifting armature assembly testing fixture according to claim 6, characterized in that: The adjustment mechanism (5) includes a support plate (501), which is fixedly installed on the top of the fixed plate (4). A rotating shaft (502) is rotatably connected to one side of the support plate (501). A bidirectional threaded rod (503) is fixedly installed at one end of the rotating shaft (502), and an abutment block (504) is slidably connected to the outer wall of the bidirectional threaded rod (503).

8. The lifting armature assembly testing fixture according to claim 7, characterized in that: The top of the support plate (301) is provided with a guide groove (505) corresponding to the position of the contact block (504), and a guide block (506) is fixedly installed at the bottom of the contact block (504) corresponding to the position of the guide groove (505).

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