Length automatic detection device

Abstract

The utility model discloses an automatic length detection device. The automatic length detection device comprises a bearing base, the feeding mechanism is arranged at the inner ends of the abutting baffles which are symmetrically arranged, and the feeding mechanism comprises a feeding baffle. A bearing support is arranged at the left end of the bearing base, and the interior of the bearing support is fixedly connected to the inner end of a positioning air cylinder. Wherein the inner end of the positioning air cylinder penetrates through the interior of the abutting baffle so that the transmission shaft body can be positioned, and a distance measuring dial indicator is fixedly arranged on the front face of the bearing support so that the length of the transmission shaft body can be detected. According to the automatic length detection device, transmission shaft bodies fed in batches are separated through the feeding mechanism above the bearing base so that one-time and one-time feeding detection can be carried out, meanwhile, after length detection is completed, the overturning lifting plate rotates forwards, the transmission shaft bodies are fed downwards, then automatic feeding and discharging are completed, and errors caused by manual assistance are avoided.

Description

Technical Field

[0001] This utility model relates to the field of length detection technology, specifically to an automatic length detection device. Background Technology

[0002] Driveshaft length inspection refers to the process of accurately measuring the length of a driveshaft to ensure it meets design requirements and standards. This inspection process is crucial for guaranteeing the performance and safety of the driveshaft. The purpose of driveshaft length inspection is to ensure the stability and reliability of the driveshaft under various operating conditions. Through rigorous inspection, assembly problems caused by inaccurate length can be avoided, thereby improving the efficiency and service life of the entire transmission system.

[0003] The utility model with publication number CN206832180U discloses a drive shaft length detection device, which uses the conductivity of a conductor to achieve detection, has high sensitivity and good detection effect; it does not require the configuration of expensive sensors, so the manufacturing cost is low; after the drive shaft is placed on the detection device, the detection device can automatically perform detection and quickly identify whether the length of the drive shaft is normal, which is suitable for configuration in the production line for batch detection.

[0004] However, the above-mentioned length detection device for drive shafts still has the following problems in actual use: Although the length detection of drive shafts is achieved through electricity, such detection mechanisms require human assistance to load and unload the drive shafts. At the same time, the drive shafts placed in the detection mechanism do not have an independent positioning mechanism, which can easily lead to misalignment due to differences in specifications, affecting the reading of length detection data.

[0005] Therefore, we propose an automatic length detection device to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic length detection device to solve the problem that existing electrical methods can detect the length of drive shafts, but such detection mechanisms require manual assistance to load and unload the drive shafts. In addition, the drive shafts placed in the detection mechanism do not have an independent positioning mechanism, which can easily lead to misalignment due to differences in specifications, affecting the reading of length detection data.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic length detection device, comprising a support base and contact baffles fixedly installed on the left and right sides of the top surface of the support base; further comprising:

[0008] The inner end of the symmetrically arranged abutment baffle is provided with a feeding mechanism, and the feeding mechanism includes a feeding baffle, and the top of the feeding baffle is fixedly connected to the top of the left and right abutment baffles.

[0009] The left end of the bearing base is provided with a bearing bracket, and the bearing bracket is internally fixedly connected to the inner end of the positioning cylinder.

[0010] The inner end of the positioning cylinder passes through the interior of the contact baffle to position the drive shaft, and a distance measuring dial indicator is fixedly installed on the front of the bearing bracket to detect the length of the drive shaft.

[0011] Preferably, the feeding mechanism includes a guide chute, which is located at the center of the left and right feeding baffles. The feeding mechanism also includes a drive gear, which is rotatably mounted on the outer front of the left and right feeding baffles via bearings.

[0012] Preferably, the feeding mechanism includes a driven rack, which is slidably disposed on the upper and lower sides of the outer side of the left and right feeding baffles. The driven racks on the upper and lower sides are meshed with the outer wall of the driving gear, and the rear ends of the driven racks on the upper and lower sides are slidably disposed inside the guide groove in an interleaved manner.

[0013] Preferably, the feeding mechanism includes a feeding baffle that guides the transmission shaft through an internal guide groove, while the driven racks on the outer side of the feeding baffle are arranged in an alternating pattern to individually separate and limit the batch of transmission shafts, so that the transmission shafts can be fed one by one to achieve subsequent testing.

[0014] Preferably, the feeding mechanism includes a flip-lifting plate, and the front end of the flip-lifting plate is rotatably disposed on the inner side of the feeding baffle by a torsion spring. In the initial state, the flip-lifting plate covers the inner side of the guide groove opened inside the feeding baffle, and the flip-lifting plate supports the transmission shaft inside the guide groove.

[0015] Preferably, a transmission shaft is rotatably mounted on the top front of the bearing base via a bearing, and a drive shaft is rotatably mounted on the front of the left and right sides of the bearing base that abut against the baffle via a bearing. The left end of the drive shaft is engaged with the outer wall of the left end of the transmission shaft via a first sprocket mechanism, and the outer end of the transmission shaft is engaged with the shaft of the drive gear via a second sprocket mechanism.

[0016] Preferably, the outer walls of both sides of the transmission shaft are wound and connected to the front end of the traction steel cable, and the rear ends of the left and right traction steel cables are fixedly connected to the bottom end of the left and right flip-lifting plates. After the traction steel cable is wound by the transmission shaft, the flip-lifting plates are rotated forward to lower the transmission shaft after detection.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic length detection device separates the batch-input transmission shafts through the feeding mechanism above the support base for individual unloading detection. Simultaneously, after length detection is completed, the flipping lifting plate rotates forward to lower the transmission shafts, thus completing automatic feeding and unloading and avoiding errors caused by manual assistance. The specific details are as follows:

[0018] 1. The drive shaft rotates through the first sprocket mechanism's drive gear, causing the driven racks on the upper and lower sides to move, thus dropping the bottom drive shaft downwards. Then, the reverse-rotating drive gear drives the driven racks to move in the opposite direction, separating the bottom drive shafts through the driven racks on the upper and lower sides, so that the bottom drive shafts fall downwards, thus completing the autonomous unloading of a single drive shaft.

[0019] 2. The drive shaft is supported by a flipping lifting plate, and then the positioning cylinder installed inside the right-side support bracket works to penetrate the contact baffle and contact the left end of the drive shaft, ensuring that the right end of the drive shaft contacts and is limited by the contact baffle. The distance measuring dial gauge measures the length of the drive shaft after it is limited, thereby improving the detection efficiency and avoiding the influence of specifications and placement issues on the measurement data.

[0020] 3. The drive shaft will rewind the traction steel cable, and then drive the flipping support plate fixedly connected to its rear end to flip forward, so that it no longer lifts the inspected drive shaft. The inspected drive shaft can slide down, and the feeding mechanism will then lower the batch of drive shafts, thereby completing the automatic feeding and unloading, avoiding errors caused by manual assistance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the transmission shaft mounting structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the distance measuring dial indicator of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the feeding baffle of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the driving gear and driven gear of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the flip-up lifting plate of this utility model after rotation.

[0027] In the diagram: 1. Support base; 2. Contact baffle; 3. Feeding baffle; 4. Support bracket; 5. Positioning cylinder; 6. Guide chute; 7. Drive gear; 8. Driven rack; 9. Tilting lifting plate; 10. Transmission shaft; 11. Drive shaft; 12. First sprocket mechanism; 13. Second sprocket mechanism; 14. Traction cable; 15. Distance measuring dial indicator. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-6 The present invention provides the following technical solution:

[0030] Example 1: To solve the problems existing in the length detection of the transmission shaft, this example provides an automatic length detection device, including a support base 1 and contact baffles 2 fixedly installed on the left and right sides of the top surface of the support base 1. The inner ends of the symmetrically arranged contact baffles 2 are provided with a feeding mechanism, and the feeding mechanism includes a feeding baffle 3, and the top of the feeding baffle 3 is fixedly connected to the top of the left and right contact baffles 2. The feeding mechanism includes a guide groove 6, and the guide groove 6 is opened at the inner center of the left and right feeding baffles 3. The feeding mechanism includes a drive gear 7, and the drive gear 7 is rotatably arranged on the outer front of the left and right feeding baffles 3 through a bearing.

[0031] The feeding mechanism includes a driven rack 8, which is slidably disposed on the upper and lower sides of the outer side of the left and right feeding baffles 3. The driven racks 8 on the upper and lower sides are meshed with the outer wall of the drive gear 7. The rear ends of the driven racks 8 on the upper and lower sides are slidably disposed inside the guide groove 6 in an interleaved manner. The feeding baffles 3 included in the feeding mechanism guide the transmission shaft through the guide groove 6 opened inside. At the same time, the driven racks 8 distributed on the outer side of the feeding baffles 3 in an interleaved manner perform individual separation and limitation on the batch of transmission shafts, so as to realize the subsequent inspection work by feeding the transmission shafts one by one.

[0032] A transmission shaft 10 is rotatably mounted on the top front of the support base 1 via a bearing, and a drive shaft 11 is rotatably mounted on the left and right sides above the support base 1, abutting against the front of the baffle 2 via a bearing. The left end of the drive shaft 11 is engaged with the outer wall of the left end of the transmission shaft 10 via a first sprocket mechanism 12, and the outer end of the transmission shaft 10 is engaged with the shaft of the drive gear 7 via a second sprocket mechanism 13.

[0033] like Figures 4-5 As shown, the drive shafts are first placed in batches into the guide grooves 6 inside the left and right feeding baffles 3, so that the drive shafts are blocked and limited by the driven racks 8 above the feeding baffles 3. Then, the drive shafts 11 installed on the left and right sides against the front of the baffles 2 are driven to rotate by the motor, so that the drive shafts 11 drive the drive gears 7 on the outside of the feeding baffles 3 to rotate through the first sprocket mechanism 12, and at the same time drive the driven racks 8 meshing on the upper and lower sides to move. The upper driven rack 8 moves forward and the lower driven rack 8 moves backward, thus dropping the bottom drive shaft downward. Then, the reverse rotating drive gear 7 drives the driven racks 8 to move in the opposite direction, thus separating the bottom drive shaft by the driven racks 8 on the upper and lower sides, so that the bottom drive shaft falls downward, thus completing the autonomous unloading of a single drive shaft.

[0034] Example 2: In order to solve the problem of length detection of existing transmission shafts, this example adopts the following technical solution: the left end of the support base 1 is provided with a support bracket 4, and the inside of the support bracket 4 is fixedly connected to the inner end of the positioning cylinder 5; wherein, the inner end of the positioning cylinder 5 passes through the inside of the abutment baffle 2 to position the transmission shaft, and a distance measuring dial indicator 15 is fixedly provided on the front of the support bracket 4 to detect the length of the transmission shaft.

[0035] like Figures 1-3 As shown, the drive shaft inside the feeding baffle 3 is supported by the flipping lifting plate 9, and then the positioning cylinder 5 installed inside the right bearing bracket 4 works to make contact with the left end of the drive shaft after passing through the abutment baffle 2, ensuring that the right end of the drive shaft contacts and is limited by the abutment baffle 2. The distance measuring dial indicator 15 measures the length of the drive shaft after it is limited, thereby improving the detection efficiency and avoiding the influence of specifications and placement issues on the measurement data.

[0036] Example 3: To solve the problem of length detection of existing transmission shafts, this example adopts the following technical solution: The feeding mechanism includes a flipping support plate 9, and the front end of the flipping support plate 9 is rotatably set inside the feeding baffle 3 by a torsion spring. In the initial state, the flipping support plate 9 covers the inside of the guide groove 6 opened inside the feeding baffle 3, and the flipping support plate 9 supports the transmission shaft inside the guide groove 6. The outer walls of the left and right sides of the transmission shaft 10 are wound and connected to the front end of the traction steel cable 14, and the rear ends of the left and right traction steel cables 14 are fixedly connected to the bottom end of the left and right flipping support plates 9. After the transmission shaft 10 winds the traction steel cable 14, it drives the flipping support plate 9 to rotate forward so as to lower the transmission shaft after detection.

[0037] like Figure 2 , Figure 6 As shown, after the transmission shaft is inspected, the drive shaft 11 drives the transmission shaft 10 to rotate through the second sprocket mechanism 13. At the same time, the transmission shaft 10 winds up the traction steel cables 14 on the left and right outer walls. Then, the traction steel cables 14 drive the flipping lifting plate 9 fixedly connected to its rear end to flip forward so that it no longer lifts the inspected transmission shaft. The inspected transmission shaft can slide down and the feeding mechanism will then lower the batch of transmission shafts, thus completing the automatic feeding and unloading, avoiding errors caused by manual assistance.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic length detection device, comprising a support base (1) and abutment baffles (2) fixedly installed on the left and right sides of the top surface of the support base (1); Its features are, Also includes: The inner end of the symmetrically arranged abutment baffle (2) is provided with a feeding mechanism, and the feeding mechanism includes a feeding baffle (3), and the top of the feeding baffle (3) is fixedly connected to the top of the left and right abutment baffles (2); The left end of the bearing base (1) is provided with a bearing bracket (4), and the bearing bracket (4) is fixedly connected to the inner end of the positioning cylinder (5). The inner end of the positioning cylinder (5) passes through the interior of the contact baffle (2) to position the transmission shaft. The front of the bearing bracket (4) is fixedly equipped with a distance measuring dial indicator (15) to detect the length of the transmission shaft.

2. The automatic length detection device according to claim 1, characterized in that: The feeding mechanism includes a guide chute (6), which is located at the center of the left and right feeding baffles (3). The feeding mechanism also includes a drive gear (7), which is rotatably mounted on the front of the left and right feeding baffles (3) via a bearing.

3. The automatic length detection device according to claim 2, characterized in that: The feeding mechanism includes a driven rack (8), and the driven rack (8) is slidably disposed on the upper and lower sides of the outer side of the feeding baffles (3) on the left and right sides. The driven racks (8) on the upper and lower sides are meshed and connected to the outer wall of the driving gear (7). The rear ends of the driven racks (8) on the upper and lower sides are slidably disposed inside the guide groove (6) in an interleaved manner.

4. The automatic length detection device according to claim 3, characterized in that: The feeding mechanism includes a feeding baffle (3) which guides the transmission shaft through an internal guide groove (6). At the same time, the driven racks (8) on the outside of the feeding baffle (3) are arranged in an alternating pattern to individually separate and limit the transmission shafts that are fed in batches, so that the transmission shafts can be fed one by one to achieve subsequent testing.

5. The automatic length detection device according to claim 4, characterized in that: The feeding mechanism includes a flipping lifting plate (9), and the front end of the flipping lifting plate (9) is rotated and set inside the feeding baffle (3) by a torsion spring. In the initial state, the flipping lifting plate (9) covers the inside of the guide groove (6) opened inside the feeding baffle (3), and the flipping lifting plate (9) supports the transmission shaft inside the guide groove (6).

6. The automatic length detection device according to claim 1, characterized in that: A transmission shaft (10) is rotatably mounted on the top front of the bearing base (1) via a bearing, and a drive shaft (11) is rotatably mounted on the front of the left and right sides of the bearing base (1) that abut against the baffle (2) via a bearing. The left end of the drive shaft (11) is engaged with the outer wall of the left end of the transmission shaft (10) via a first sprocket mechanism (12), and the outer end of the transmission shaft (10) is engaged with the shaft of the drive gear (7) via a second sprocket mechanism (13).

7. The automatic length detection device according to claim 6, characterized in that: The outer walls of the left and right sides of the transmission shaft (10) are both wound and connected to the front end of the traction cable (14), and the rear ends of the left and right traction cables (14) are fixedly connected to the bottom end of the left and right flip lifting plates (9). After the traction cable (14) is wound by the transmission shaft (10), the flip lifting plate (9) is driven to rotate forward so that the transmission shaft body after detection is moved downward.

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