Multi-specification thread detection go-no go gauge device

Abstract

The utility model relates to the field of thread detection, and discloses a multi-specification thread detection go-no go gauge device, comprising a detection bench, the top of the detection bench is provided with a switching mechanism and a limiting guide mechanism, the switching mechanism comprises a lifting plate, the bottom of the lifting plate is fixedly connected with a circular block, the inner wall of the circular block is rotatably connected with a cross-shaped rotating block, and the cross-shaped rotating block is fixedly connected with the detection bench. A limiting lifting block is slidably connected to the inner wall of the cross rotating block, a connecting rotating cylinder is rotatably connected to the inner wall of the limiting lifting block, and a supporting rotating plate is rotatably connected to the inner wall of the circular block. According to the utility model, through the arrangement of the switching mechanism, a plurality of go / no-go gauge detection heads with different specifications can be loaded at the same time, when different thread specifications need to be detected, the motor II drives the cross-shaped rotating block to rotate, the detection heads with corresponding specifications are rapidly switched, manual tool replacement is not needed, automatic control of detection head switching is realized, manual operation links are reduced, and the detection efficiency is improved. The labor intensity is reduced, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of thread inspection, and in particular to a multi-specification thread inspection go / no-go gauge device. Background Technology

[0002] Thread go / no-go gauge inspection is a thread size accuracy inspection method based on the principle of limit gauges. It uses a combination of go and no-go gauges (i.e., go / no-go gauges) to quickly determine the conformity of key dimensions such as the major diameter, pitch diameter, and minor diameter of the thread, in order to determine whether the thread meets the design standards or assembly requirements.

[0003] In existing thread go / no-go gauge inspection scenarios, the main method is to achieve the inspection through the coordinated operation of a conveying mechanism, a positioning mechanism, and a testing execution mechanism: a motor drives a conveyor belt or turntable, a workpiece carrier fixes the threaded workpiece to be inspected and automatically transports it to the inspection station. When the workpiece reaches the inspection position, it is precisely positioned by a mechanical stop, a cylinder limiter, or a vision calibration system to ensure that the thread axis is coaxial with the go / no-go gauge inspection head, thus providing a foundation for subsequent automated inspection.

[0004] In existing thread inspection technologies, traditional go / no-go gauge inspection equipment can only be adapted to a single specification of thread inspection head. When it is necessary to inspect threads with different nominal diameters, pitches, or accuracy grades, manual shutdown is required to change the inspection head. Manual replacement is time-consuming, labor-intensive, and reduces inspection efficiency. Therefore, a multi-specification thread inspection go / no-go gauge device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-specification thread inspection go / no-go gauge device, which aims to solve the problem that some existing go / no-go gauge inspection equipment requires manual switching of the inspection head, resulting in high labor intensity and low efficiency.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a multi-specification thread inspection go / no-go gauge device, including an inspection platform, a switching mechanism and a limiting guide mechanism are provided on the top of the inspection platform, the switching mechanism includes a lifting plate, a circular block is fixedly connected to the bottom of the lifting plate, a cross rotating block is rotatably connected to the inner wall of the circular block, a limiting lifting block is slidably connected to the inner wall of the cross rotating block, a connecting cylinder is rotatably connected to the inner wall of the limiting lifting block, a supporting rotating plate is rotatably connected to the inner wall of the circular block, the top of the supporting rotating plate is elastically connected to the bottom of the cross rotating block by a spring, a fixing head is fixedly connected to the bottom of the connecting cylinder, a go / no-go gauge inspection head is detachably connected to the fixing head by a screw, a limiting connecting groove is opened at the top of the connecting cylinder, a motor is fixedly connected to the top of the lifting plate, a rotating shaft is fixedly connected to the output end of the motor, and a limiting connecting head is fixedly connected to the bottom end of the rotating shaft.

[0007] As a further description of the above technical solution:

[0008] The switching mechanism also includes a second motor, the bottom of which is fixedly connected to the top of the circular block, and the bottom end of the output shaft of the second motor is fixedly connected to the top of the cross rotating block.

[0009] As a further description of the above technical solution:

[0010] The switching mechanism also includes a support plate, the bottom of which is fixedly connected to the top of the testing platform, and the side wall of the lifting plate is slidably connected to the outer wall of the support plate.

[0011] As a further description of the above technical solution:

[0012] The switching mechanism also includes a hydraulic rod, the bottom of which is fixedly connected to the inner surface of the support plate, and the top of the inner rod of which is fixedly connected to the bottom of the lifting plate.

[0013] As a further description of the above technical solution:

[0014] The switching mechanism also includes an electric push rod, the bottom of which is fixedly connected to the top of the lifting plate. A pressing block is fixedly connected to the bottom of the inner rod of the electric push rod, and the bottom of the pressing block contacts the cross rotating block and the top of the connecting drum.

[0015] As a further description of the above technical solution:

[0016] The limiting and guiding mechanism includes a conveyor, the bottom of which is fixedly connected to the top of the detection platform, and a conveyor motor is fixedly connected to the side wall of the conveyor.

[0017] As a further description of the above technical solution:

[0018] The limiting and guiding mechanism also includes a loading block, which is placed on top of the conveyor, and a threaded rod to be tested is fixedly connected to the inner wall of the loading block.

[0019] As a further description of the above technical solution:

[0020] The limiting and guiding mechanism also includes an electric push rod II, the outer wall of which is fixedly connected to the side wall of the conveyor, and the inner rod of which is fixedly connected to a guide clamp.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting a switching mechanism, multiple go / no-go gauge test heads of different specifications can be loaded at the same time. When different thread specifications need to be tested, the second motor drives the cross rotating block to rotate, quickly switching to the corresponding specification test head. There is no need to manually change tools, realizing the automated control of test head switching, reducing manual operation links, reducing labor intensity, and greatly improving testing efficiency.

[0023] 2. In this utility model, by setting a limiting guide mechanism, the guide clamp can limit the placement block on both sides, suppressing shaking and offset during the conveying process. The adjustability of the electric push rod two allows the guide clamp to adjust its width according to the size of the placement block. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of a multi-specification thread inspection go / no-go gauge device proposed in this utility model;

[0025] Figure 2 This is a top view cross-sectional structural diagram of a multi-specification thread inspection go / no-go gauge device proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the switching mechanism of a multi-specification thread inspection go / no-go gauge device proposed in this utility model;

[0027] Figure 4 This is a side view cross-sectional diagram of the circular block structure of a multi-specification thread inspection go / no-go gauge device proposed in this utility model;

[0028] Figure 5 This is a top view cross-sectional diagram of the circular block structure of a multi-specification thread inspection go / no-go gauge device proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the limiting connector structure of a multi-specification thread inspection go / no-go gauge device proposed in this utility model.

[0030] Legend:

[0031] 1. Testing table; 2. Switching mechanism; 211. Lifting plate; 212. Circular block; 213. Cross rotating block; 214. Limit lifting block; 215. Connecting drum; 216. Supporting rotating plate; 217. Spring; 218. Fixed head; 219. Screw; 220. Go / no-go gauge testing head; 221. Limit connecting groove; 222. Motor 1; 223. Rotating shaft; 224. Limit connecting head; 225. Motor 2; 226. Support plate; 227. Hydraulic rod; 228. Electric push rod 1; 229. Pressing block; 3. Limiting guide mechanism; 311. Conveyor; 312. Conveyor motor; 313. Loading block; 314. Threaded rod to be tested; 315. Electric push rod 2; 316. Guide clamp. Detailed Implementation

[0032] 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.

[0033] Reference Figures 4-6The present invention provides an embodiment of a multi-specification thread inspection go / no-go gauge device, comprising an inspection platform 1 for supporting the entire inspection device. The top of the inspection platform 1 is provided with a switching mechanism 2 and a limiting guide mechanism 3. The switching mechanism 2 is used to switch between different specifications of go / no-go gauge inspection heads 220. The limiting guide mechanism 3 is used to limit and guide the placement block 313. The switching mechanism 2 includes a lifting plate 211 for mounting and supporting a circular block 212. The bottom of the lifting plate 211 is fixedly connected to the circular block 212, which provides rotation space for components such as the cross rotating block 213. A cross-shaped rotating block 213 is rotatably connected to the inner wall of the circular block 212. The cross-shaped rotating block 213 is used to drive the connecting drum 215 to rotate in order to switch the go / no-go gauge detection head 220. A limit lifting block 214 is slidably connected to the inner wall of the cross-shaped rotating block 213. The limit lifting block 214 can slide up and down within the cross-shaped rotating block 213 and drive the connecting drum 215 to rise and fall. The connecting drum 215 is rotatably connected to the inner wall of the limit lifting block 214. The connecting drum 215 is used to transmit torque to drive the go / no-go gauge detection head 220 to rotate. A support rotating plate 216 is rotatably connected to the inner wall of the circular block 212. The support rotating plate 216 is used to support the connecting drum 215 and ensure its stability. The top of the supporting rotating plate 216 is elastically connected to the bottom of the cross rotating block 213 via a spring 217. The bottom end of the spring 217 is fixedly connected to the top of the supporting rotating plate 216, and the top end of the spring 217 is fixedly connected to the bottom of the limiting lifting block 214. The spring 217 provides an upward rebound force for the limiting lifting block 214 and the connecting rotating cylinder 215. The outer wall of the connecting rotating cylinder 215 is rotatably connected to the inner wall of the supporting rotating plate 216. A fixing head 218 is fixedly connected to the bottom end of the connecting rotating cylinder 215. The fixing head 218 is used to connect the go / no-go gauge inspection head 220. The fixing head 218 is detachably connected to the go / no-go gauge inspection head 220 via a screw 219. The go / no-go gauge inspection head 220 is used to inspect the thread of the threaded rod 314 to be inspected. The top of the connecting drum 215 has a limit connecting groove 221, which is used to cooperate with the limit connecting head 224 to transmit torque. The top of the lifting plate 211 is fixedly connected to a motor 222, which provides power for the rotation of the go / no-go gauge inspection head 220. The output end of the motor 222 is fixedly connected to a rotating shaft 223, which is used to transmit the torque of the motor 222. The bottom end of the rotating shaft 223 is fixedly connected to a limit connecting head 224, which is used to cooperate with the limit connecting groove 221 to realize torque transmission.

[0034] Reference Figures 1-3The switching mechanism 2 also includes a second motor 225, which drives the cross-shaped rotating block 213 to rotate to switch between different go / no-go gauge detection heads 220. The bottom of the second motor 225 is fixedly connected to the top of the circular block 212, and the bottom end of the output shaft of the second motor 225 is fixedly connected to the top of the cross-shaped rotating block 213. The switching mechanism 2 also includes a support plate 226, which supports the lifting plate 211 and ensures its stable lifting. The bottom of the support plate 226 is fixedly connected to the top of the detection table 1, and the side wall of the lifting plate 211 is slidably connected to the outer wall of the support plate 226. The switching mechanism 2 also includes a hydraulic rod 227, which drives the lifting plate. 211 Lifting mechanism 211 is a hydraulic rod 227 whose bottom is fixedly connected to the inner surface of the support plate 226. The top of the inner rod of the hydraulic rod 227 is fixedly connected to the bottom of the lifting plate 211. The switching mechanism 2 also includes an electric push rod 228, which is used to drive the pressing block 229 to descend in order to switch the go / no-go gauge detection head 220. The bottom of the electric push rod 228 is fixedly connected to the top of the lifting plate 211. The bottom of the inner rod of the electric push rod 228 is fixedly connected to the pressing block 229. The pressing block 229 is used to press the cross rotating block 213 and the connecting drum 215 to make them descend. The bottom of the pressing block 229 contacts the top of the cross rotating block 213 and the connecting drum 215.

[0035] Reference Figure 2 The limiting and guiding mechanism 3 includes a conveyor 311, which is used to convey a loading block 313 and a threaded rod 314 to be tested. The bottom of the conveyor 311 is fixedly connected to the top of the testing table 1. A conveying motor 312 is fixedly connected to the side wall of the conveyor 311, which provides power for the operation of the conveyor 311. The limiting and guiding mechanism 3 also includes a loading block 313, which is used to place the threaded rod 314 to be tested and move it on the conveyor 311. The loading block 313 is placed on the top of the conveyor 311. The inner wall of the loading block 313 is fixedly connected to a thread rod 314 to be tested, which is the workpiece for which thread testing is required. The limiting and guiding mechanism 3 also includes an electric actuator 315, which is used to drive the guide clamp 316 to move in order to limit and guide the loading block 313. The outer wall of the electric actuator 315 is fixedly connected to the side wall of the conveyor 311, and the inner rod of the electric actuator 315 is fixedly connected to the guide clamp 316, which is used to limit and guide the conveying of the loading block 313.

[0036] Working principle: By starting the conveyor motor 312, the conveyor motor 312 drives the conveyor 311 to run. By placing the loading block 313 with the thread rod 314 to be tested on the conveyor belt at the top of the conveyor 311, the conveyor belt can stably transport the loading block 313 with the thread rod 314 to be tested for subsequent thread testing. By starting the electric actuator 315, the inner rod of the electric actuator 315 pushes the guide clamp 316 to move. The guide clamp 316 can limit and guide the transport of the loading block 313. When the conveyor 311 transports the loading block 313 with the thread rod 314 to be tested directly below the go / no-go gauge testing head 220, the conveyor 311 stops running. By activating hydraulic rod 227, the inner rod of hydraulic rod 227 drives the lifting plate 211 and the circular block 212 to descend, thereby bringing the go / no-go gauge inspection head 220 into contact with the threaded rod 314 to be inspected. Then, by activating motor 222, the output end of motor 222 drives the rotating shaft 223 to rotate. Since the outer wall of the limiting connector 224 is fixedly connected with a triangular limiting block, and the inner wall of the limiting connecting groove 221 is provided with a corresponding triangular connecting groove, the rotating shaft 223 drives the connecting drum 215 to rotate through the limiting connector 224 and the limiting connecting groove 221. The connecting drum 215 drives the go / no-go gauge inspection head 220 to rotate through the fixed head 218, thereby enabling thread inspection of the threaded rod 314 to be inspected.

[0037] When switching between different specifications of go / no-go gauge inspection heads 220 for thread inspection, the electric actuator 228 is activated, causing the inner rod of the electric actuator 228 to push the pressing block 229 downward. The pressing block 229 presses the connecting drum 215 and the limit lifting block 214 into the circular block 212, compressing the spring 217. Subsequently, the motor 225 is activated, causing the output shaft of the motor 225 to drive the cross rotating block 213 fixedly connected to the bottom to rotate, thereby causing the cross rotating block 213 to rotate on the inner wall of the circular block 212. The cross rotating block 213 then drives the connecting drum 215 to rotate. 15. The limiting lifting block 214 and the supporting rotating plate 216 rotate. When the required connecting rotating cylinder 215 and the limiting lifting block 214 rotate to directly below the limiting connecting head 224, the electric push rod 228 drives the pressing block 229 to reset, the pressure of the spring 217 is released, and the rebound force of the spring 217 can push the limiting lifting block 214 and the connecting rotating cylinder 215 to rise. The limiting connecting groove 221 opened at the top of the connecting rotating cylinder 215 connects with the outer wall of the limiting connecting head 224 to facilitate subsequent thread inspection. Thus, different go and no-go gauge inspection heads 220 can be switched according to the thread inspection requirements.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-gauge thread inspection go-no-go gauge device comprising an inspection station (1), characterized in that: The detection platform (1) top is provided with switching mechanism (2) and limit guide mechanism (3); The switching mechanism (2) includes a lifting plate (211), the bottom of the lifting plate (211) is fixedly connected with a circular block (212), the inner wall of the circular block (212) is rotatably connected with a cross rotating block (213), the inner wall of the cross rotating block (213) is slidably connected with a limiting lifting block (214), the inner wall of the limiting lifting block (214) is rotatably connected with a connecting rotary cylinder (215), the inner wall of the circular block (212) is rotatably connected with a supporting rotary plate (216), the top of the supporting rotary plate (216) is elastically connected with the bottom of the cross rotating block (213) through a spring (217), the bottom end of the connecting rotary cylinder (215) is fixedly connected with a fixed head (218), the fixed head (218) is detachably connected with a go-no-go gauge detection head (220) through a screw rod (219), the top end of the connecting rotary cylinder (215) is provided with a limiting connecting groove (221), the top of the lifting plate (211) is fixedly connected with a motor one (222), the output end of the motor one (222) is fixedly connected with a rotating shaft (223), and the bottom end of the rotating shaft (223) is fixedly connected with a limiting connecting head (224).

2. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The switching mechanism (2) further comprises a motor two (225), and the bottom of the motor two (225) is fixedly connected to the top of the circular block (212).

3. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The switching mechanism (2) further comprises a supporting plate (226), and the bottom of the supporting plate (226) is fixedly connected to the top of the detection platform (1).

4. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The switching mechanism (2) further comprises a hydraulic rod (227), and the bottom of the hydraulic rod (227) is fixedly connected to the inner surface of the supporting plate (226).

5. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The switching mechanism (2) further comprises an electric push rod one (228), and the bottom of the electric push rod one (228) is fixedly connected to the top of the lifting plate (211).

6. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The bottom of the pressing block (229) is in contact with the top of the cross rotating block (213) and the connecting rotary cylinder (215).

7. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The limiting guide mechanism (3) comprises a conveyor (311), and the bottom of the conveyor (311) is fixedly connected to the top of the detection platform (1).

8. A multi-spec thread inspection go-no-go gauge according to claim 1, wherein: The limiting guide mechanism (3) further comprises a placing load block (313), and the placing load block (313) is placed on the top of the conveyor (311). The limiting guide mechanism (3) further comprises an electric push rod two (315), and the outer wall of the electric push rod two (315) is fixedly connected to the side wall of the conveyor (311). The inner rod of the electric push rod two (315) is fixedly connected with a guide clamp plate (316).

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