Full-automatic internal thread precision detection device

Abstract

The utility model relates to the technical field of internal thread detection, and discloses a full-automatic internal thread precision detection device which comprises a rack, a feeding and discharging mechanism, a clamping mechanism, a test piece, a screw mechanism and an induction mechanism. A detection station is arranged on the rack; the feeding and discharging mechanism is arranged on the rack and used for inputting products to be detected into the detection station one by one and outputting the detected products out of the detection station in a classified mode. The clamping mechanism is arranged on the rack, is located at the detection station and is used for clamping or loosening a product on the detection station; the test piece and the detection station are oppositely arranged, and the end part of the test piece is provided with a threaded rod part matched with the threaded hole of the product; the screw mechanism is arranged on the rack and is in transmission connection with the test piece so as to screw the threaded rod part into or out of the threaded hole of the product; and the sensing mechanism is arranged between the test piece and the screw mechanism and is used for sensing the torsion between the test piece and the product. According to the utility model, the problem of how to improve the detection efficiency and the detection precision can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to internal thread detection technical field, concretely relates to a full -automatic internal thread precision detection device. BACKGROUND

[0002] In the field of mechanical processing, threaded connection is widely used as an important way of fixed connection because of its high connection strength, convenient disassembly and strong adaptability. The core of this connection mode lies in the accurate matching of threads, therefore, after the production of products with threaded holes is completed, the internal threads of the threaded holes need to be detected to ensure the precision and quality of the threaded holes.

[0003] At present, manual or electric screwdriver detection method is generally used in the industry, which can meet the basic detection needs to some extent, but its inherent limitations are increasingly prominent. Specifically, this method judges whether the threaded hole meets the design requirements by observing whether the screw is smoothly screwed into the threaded hole and whether a good thread fit is formed through the manual operation of the operator or the use of electric screwdrivers and other tools. However, this process not only consumes time and effort and requires a large amount of human resources, but also has obvious insufficient detection efficiency when facing large-scale production batches, which is difficult to meet the needs of rapid production rhythm. In addition, manual detection is also easily affected by subjective factors of the operator, such as operation proficiency and fatigue level, which may lead to inconsistency of detection results and rising misjudgment rate, thereby affecting the stability and reliability of product quality.

[0004] In view of the above deficiencies of manual detection method and with the continuous improvement of automation and intelligent level of manufacturing industry, it is necessary to develop a full-automatic internal thread precision detection device to improve detection efficiency, reduce labor cost and ensure consistency and accuracy of detection. CONTENT OF THE UTILITY MODEL

[0005] (I) Technical problem solved

[0006] The utility model provides a full-automatic internal thread precision detection device, and at least the technical problem solved is: how to improve detection efficiency and detection precision.

[0007] (II) Technical scheme

[0008] To solve the above technical problems, the utility model provides the following technical scheme: a full-automatic internal thread precision detection device, comprising:

[0009] A rack is provided with a detection station on the rack;

[0010] An unloading mechanism is arranged on the rack and is used for inputting the products to be detected into the detection station one by one and outputting the detected products from the detection station;

[0011] A clamping mechanism is arranged on the frame and located at the detection station, and is used for clamping or releasing the product on the detection station;

[0012] A test piece is arranged opposite to the detection station, and an end of the test piece is provided with a threaded rod part matched with the threaded hole of the product;

[0013] A screw mechanism is arranged on the frame and is in transmission connection with the test piece, and is used for driving the test piece to screw to move, so as to screw or unscrew the threaded rod part into or out of the threaded hole of the product;

[0014] A sensing mechanism is arranged between the test piece and the screw mechanism, and is used for sensing the torsion between the test piece and the threaded hole, so as to detect the internal thread precision of the threaded hole.

[0015] Further, the foregoing feeding and discharging mechanism comprises:

[0016] A feeding assembly and a feeding track are arranged on the frame, the feeding assembly is used for continuously supplying the products to be tested to the feeding track, and the detection station is arranged at the output end of the feeding track;

[0017] A discharging track is arranged on one side of the output end of the feeding track, and the discharging track is provided with a good product discharging channel and a defective product discharging channel side by side;

[0018] A switching driving piece is arranged on the frame and is in transmission connection with the discharging track, and the switching driving piece is used for driving the discharging track to move relative to the detection station, so that the output end of the feeding track is docked with the good product discharging channel or the defective product discharging channel.

[0019] Further, the foregoing detection station is provided with at least two, and the number of the test piece, the screw mechanism, the sensing mechanism, the feeding track, the discharging track, the switching driving piece and the detection station is the same and one-to-one correspondence.

[0020] Further, the foregoing feeding assembly comprises:

[0021] A vibrating disc is arranged on the frame and is used for continuously outputting the products to be tested one by one;

[0022] A transfer block and a transfer block driving piece, the transfer block is arranged between the vibrating disc and the feeding track, and is provided with at least one containing hole for containing a single product to be tested, the transfer block driving piece is arranged on the frame and is in transmission connection with the transfer block, and the transfer block driving piece is used for driving the transfer block to reciprocate between the vibrating disc and the feeding track, so that each containing hole is alternatively opposite and communicated with the discharging end of the vibrating disc and the feeding end of the feeding track;

[0023] At least two push blocks and a push block driving member, each push block is located at one side of the feeding end of each feeding track, the push block driving member is arranged on the rack and is in transmission connection with the push block, and the push block driving member is used for driving the push block to move towards or away from the feeding end of the corresponding feeding track.

[0024] Further arrangement, the aforementioned clamping mechanism comprises:

[0025] One or two clamping blocks, the output end of the feeding track is provided with a gap hole for the clamping block to penetrate;

[0026] A clamping driving member is arranged on the rack and is in transmission connection with the one or two clamping blocks, and the clamping driving member is used for driving the one or two clamping blocks to displace towards or away from the gap hole.

[0027] Further arrangement, one end of the aforementioned clamping block towards the feeding track is provided with a V-shaped clamping recess.

[0028] Further arrangement, the aforementioned test piece is detachably arranged on the output end of the spiral mechanism.

[0029] Further arrangement, the aforementioned spiral mechanism comprises a lifting driving member and a rotating driving member, the lifting driving member is arranged on the rack and is in transmission connection with the rotating driving member, and the test piece is detachably arranged on the output end of the rotating driving member.

[0030] Further arrangement, the aforementioned full-automatic internal thread precision detection device further comprises a first and second position detection member arranged on the rack, the first position detection member is opposite to the detection station position and is used for detecting whether the detection station has a product, and the second position detection member is used for detecting whether the vertical position of the test piece is in place.

[0031] (Three) beneficial effects

[0032] Compared with the prior art, the full-automatic internal thread precision detection device provided by the utility model has the following beneficial effects:

[0033] 1. The full-automatic internal thread precision detection device provided by the utility model is used, first, the feeding and discharging mechanism inputs the product to be detected into the detection station; then, the screw mechanism drives the test piece to screw, so as to screw the threaded rod into the threaded hole of the product, and meanwhile, the clamping mechanism clamps and fixes the product to be detected in the detection station, so as to avoid the product to be detected from moving with the test piece during detection, and the inductive mechanism senses the torsion between the test piece and the product, and the torsion value sensed can be used to judge the internal thread precision of the threaded hole; after detection, the screw mechanism drives the test piece to move reversely, so as to screw the threaded rod out of the threaded hole of the product; finally, the clamping mechanism loosens the detected product on the detection station, and the feeding and discharging mechanism outputs the detected product from the detection station according to the detection result, and meanwhile, the next product to be detected is input into the detection station, so that the internal thread precision of the product can be automatically and continuously detected; it can be seen that the feeding, internal thread detection and discharging of the product are all automatically completed by the equipment, manual work is replaced, the detection efficiency and detection precision are remarkably improved, and the labor cost is reduced.

[0034] 2. The feeding and discharging mechanism can automatically separate and output the good products and the defective products, so as to screen out the defective products, greatly reduce the manual working hours, save a large amount of labor cost, and remarkably improve the detection efficiency and detection precision. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a perspective view of the full-automatic internal thread precision detection device in the embodiment.

[0036] Figure 2 It is a partial structure schematic view of the feeding and discharging mechanism in the embodiment.

[0037] REFERENCE NUMERALS:

[0038] 1. Rack; 11. Detection station;

[0039] 2. Feeding and discharging mechanism; 21. Feeding assembly; 211. Vibration disc; 212. Transfer block; 2121. Containing hole; 213. Transfer block driving piece; 214. Push block; 215. Push block driving piece; 22. Feeding track; 221. Letting hole; 23. Discharging track; 231. Good product discharging channel; 232. Defective product discharging channel; 24. Switching driving piece;

[0040] 3. Clamping mechanism; 31. Clamping driving piece; 32. Clamping block; 321. Clamping recess;

[0041] 4. Test piece; 41. Threaded rod;

[0042] 5. Screw mechanism; 51. Lifting driving piece; 52. Rotating driving piece;

[0043] 6. Inductive mechanism; 7. Second to-position detection piece;

[0044] 8, product; 81, threaded hole. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0046] The utility model provides a kind of full-automatic internal thread precision detection device, to solve how to improve the problem of detection efficiency and detection precision.

[0047] Referring to Figure 1 As shown in the figure, Figure 1 It is the perspective view of full-automatic internal thread precision detection device in the embodiment, and the full-automatic internal thread precision detection device includes rack 1, feeding and discharging mechanism 2, clamping mechanism 3, test piece 4, spiral mechanism 5 and induction mechanism 6.

[0048] Detection station 11 is equipped on rack 1.

[0049] Feeding and discharging mechanism 2 is installed on rack 1, and is used to input detection station 11 with the product 8 to be measured one by one, and the product 8 is classified and output detection station 11 after measurement.

[0050] Clamping mechanism 3 is installed on rack 1, and is located in detection station 11, and clamping mechanism 3 is used to clamp or loosen the product 8 on detection station 11.

[0051] Test piece 4 is arranged opposite to detection station 11, and the end of test piece 4 has threaded rod part 41 matched with threaded hole 81 of product 8.

[0052] Spiral mechanism 5 is installed on rack 1, and is drivingly connected with test piece 4, and spiral mechanism 5 is used to drive test piece 4 to spiral motion, to rotate threaded rod part 41 into or out of threaded hole 81 of product 8.

[0053] Induction mechanism 6 is installed between test piece 4 and spiral mechanism 5, and is used to induct the torsion between test piece 4 and product 8, to detect the internal thread precision of threaded hole 81.

[0054] The automatic internal thread precision detection device uses the following technical scheme. First, the feeding and discharging mechanism 2 inputs the product 8 to be detected into the detection station 11. Then, the screw mechanism 5 drives the test piece 4 to screw, so that the threaded rod part 41 is screwed into the threaded hole 81 of the product 8. At the same time, the clamping mechanism 3 clamps and fixes the product 8 to be detected in the detection station 11, so that the product 8 to be detected moves with the test piece 4 during detection. At the same time, the sensing mechanism 6 senses the torque between the test piece 4 and the product 8. The torque value sensed can be used to judge the internal thread precision of the threaded hole 81. After detection, the screw mechanism 5 drives the test piece 4 to reverse screw, so that the threaded rod part 41 is screwed out of the threaded hole 81 of the product 8. Finally, the clamping mechanism 3 releases the detected product 8 on the detection station 11. The feeding and discharging mechanism 2 classifies and outputs the detected product 8 from the detection station 11 according to the detection result, and inputs the next product 8 to be detected into the detection station 11. In this way, the internal thread precision of the product 8 can be automatically and continuously detected. It can be seen that the feeding, internal thread detection and discharging of the product 8 are all automatically completed by the equipment, replacing manual work, and significantly improving the detection efficiency and detection precision, and reducing the labor cost. Moreover, the feeding and discharging mechanism 2 can automatically separate and output the good products and the defective products according to the detection result, so as to screen out the defective products, greatly reducing the manual working hours, saving a large amount of labor cost, and significantly improving the detection efficiency and detection precision.

[0055] The sensing mechanism 6 can use an existing torque sensor or a torque sensor. In this way, when the screw mechanism 5 drives the threaded rod part 41 to screw into the threaded hole 81, a certain torque will be generated between the threaded rod part 41 and the product 8. If the actual internal thread size of the threaded hole 81 meets the requirements, that is, the threaded hole 81 and the threaded rod part 41 can form a good thread cooperation, the torque value between the threaded rod part 41 and the product 8 will always be within the standard torque range. If the actual internal thread size of the threaded hole 81 is too large, the threaded rod part 41 may idle in the threaded hole 81, and the torque value between the threaded rod part 41 and the product 8 will be lower than the standard torque range. Conversely, if the actual internal thread size of the threaded hole 81 is too small, the threaded rod part 41 is difficult to screw into the threaded hole 81, and the torque value between the threaded rod part 41 and the product 8 will be higher than the standard torque range. In this way, by sensing the difference between the actual torque value and the standard torque range through the sensing mechanism 6, the internal thread precision of the product 8 can be judged.

[0056] Referring to Figure 1As shown in an embodiment of the feeding and discharging mechanism 2, the feeding and discharging mechanism 2 comprises a feeding assembly 21, a feeding track 22, a discharging track 23 and a switching driving member 24. The feeding assembly 21 and the feeding track 22 are arranged on the rack 1 by screwing or welding, etc. The feeding assembly 21 is used for continuously supplying the products 8 to be tested to the feeding track 22. The detection station 11 is arranged at the output end of the feeding track 22. The discharging track 23 is arranged at one side of the output end of the feeding track 22, and the discharging track 23 is provided with the good product discharging channel 231 and the defective product discharging channel 232 in parallel. The switching driving member 24 is arranged on the rack 1 by screwing or welding, etc., and is in transmission connection with the discharging track 23. The switching driving member 24 is used for driving the discharging track 23 to move relative to the detection station 11, so that the output end of the feeding track 22 is in butt joint with the good product discharging channel 231 or the defective product discharging channel 232. In this way, the full-automatic internal thread precision detection device can continuously supply the products 8 to be tested to the feeding track 22 through the feeding assembly 21, so as to realize the automatic feeding of the products 8 to be tested. While the feeding assembly 21 supplies the feeding track 22, the products 8 to be tested on the feeding track 22 can be pushed to move along the feeding track 22 to the output end of the feeding track 22, so as to push the tested products 8 at the output end of the feeding track 22 into the discharging track 23, thereby realizing the automatic classification and discharging of the tested products 8. Moreover, the full-automatic internal thread precision detection device can switch the output end of the feeding track 22 to be in butt joint with the good product discharging channel 231 or the defective product discharging channel 232 of the discharging track 23 through the switching driving member 24, so as to send the good products into the good product discharging channel 231 and the defective products into the defective product discharging channel 232, thereby facilitating the staff to classify and process the tested products 8.

[0057] The above-mentioned switching driving member 24 can use the existing telescopic air cylinder or telescopic electric pole, etc. linear displacement driving mechanism, and the output end thereof is connected with the discharging track 23 by welding or screwing, etc.

[0058] The discharge ends of the above-mentioned good product discharging channel 231 and defective product discharging channel 232 can be connected with containers, so as to facilitate the centralized processing of the good products and defective products.

[0059] Referring to Figure 1 As shown on the basis of the above-mentioned embodiment, the number of the detection stations 11 is at least two. The number of the test members 4, the screw mechanism 5, the sensing mechanism 6, the feeding track 22, the discharging track 23, the switching driving member 24 and the detection stations 11 is the same and one-to-one corresponding. In this way, the full-automatic internal thread precision detection device can simultaneously feed, detect and classify and discharge several products 8, thereby further improving the internal thread detection efficiency.

[0060] Referring to Figure 1 and Figure 2 As shown, Figure 2Fig. 2 is a schematic view of the feeding mechanism in the embodiment. In one embodiment of the feeding assembly 21, the feeding assembly 21 comprises a vibrating disc 211, a transfer block 212, a transfer block driving member 213, a push block 214 and a push block driving member 215. The vibrating disc 211 is arranged on the frame 1 by screwing or welding, etc., and is used to output the products 8 to be tested one by one continuously. The transfer block 212 is located between the vibrating disc 211 and the feeding track 22, and the transfer block 212 has at least one accommodating hole 2121 for accommodating a single product 8 to be tested. The transfer block driving member 213 is arranged on the frame 1 by screwing or welding, etc., and is in transmission connection with the transfer block 212. The transfer block driving member 213 is used to drive the transfer block 212 to move back and forth between the vibrating disc 211 and the feeding track 22, so that each accommodating hole 2121 is alternately positioned opposite and communicated with the discharge end of the vibrating disc 211 and the feeding end of the feeding track 22. The number of the push block 214 and the push block driving member 215 is at least two. Each push block 214 is located on one side of the feeding end of each feeding track 22. The push block driving member 215 is arranged on the frame 1 by screwing or welding, etc., and is in transmission connection with the push block 214. The push block driving member 215 is used to drive the push block 214 to move towards or away from the feeding end of the corresponding feeding track 22. In this way, when feeding, first, the vibrating disc 211 inputs a product 8 to be tested into the accommodating hole 2121, then the transfer block driving member 213 drives the accommodating hole 2121 to be positioned opposite and communicated with the feeding end of one of the feeding tracks 22, and subsequently, the corresponding push block driving member 215 drives the push block 214 to move towards the feeding end of the feeding track 22, so that the push block 214 penetrates the accommodating hole 2121 and pushes the product 8 to be tested in the accommodating hole 2121 into the feeding track 22, and simultaneously pushes the product 8 to be tested on the feeding track 22 to move along the feeding track 22 towards the output end of the feeding track 22, so as to push the product 8 to be tested at the output end of the feeding track 22 out; finally, the push block driving member 215 drives the push block 214 to move out of the accommodating hole 2121 away from the feeding end of the feeding track 22, and the transfer block driving member 213 drives the accommodating hole 2121 to be positioned opposite and communicated with the discharge end of the vibrating disc 211 again, so that the vibrating disc 211 inputs the next product 8 to be tested into the accommodating hole 2121 for the next round of feeding. It can be seen that the feeding assembly 21 can supply the products 8 to be tested for more than one feeding track 22, and through the cooperation of the push block 214 and the push block driving member 215, it can also ensure that only one product 8 is pushed each time, so as to realize the input of the products 8 to be tested into the detection station 11 one by one, and simultaneously realize the output of the products 8 to be tested out of the detection station 11.

[0061] The accommodating hole 2121 on the transfer block 212 can have only one, and the transfer block driving member 213 needs to drive the accommodating hole 2121 to communicate with each feeding track 22 in turn to supply the feeding track 22 in turn, but the accommodating hole 2121 on the transfer block 212 can also have two or more than two, in the embodiment, the accommodating hole 2121 on the transfer block 212 has two, and the feeding track 22 has two, when one of the accommodating holes 2121 communicates with the discharge end of the vibration disc 211 in position, the other accommodating hole 2121 communicates with the feeding end of one feeding track 22 in position, so that the feeding of two feeding tracks 22 can be realized.

[0062] The transfer block driving member 213 and the push block driving member 215 can use existing telescopic air cylinders or telescopic electric rods and other linear displacement driving mechanisms, the output end of the transfer block driving member 213 is connected with the transfer block 212 by welding or screwing and the like, and the output end of the push block driving member 215 is connected with the push block 214 by welding or screwing and the like.

[0063] Referring to Figure 2 As shown in the drawings, in one embodiment of the clamping mechanism 3, the clamping mechanism 3 includes a clamping driving member 31 and one or two clamping blocks 32. The output end of the feeding track 22 is provided with a gap hole 221 for the clamping block 32 to pass through. The clamping driving member 31 is arranged on the rack 1 by screwing or welding and the like, and is in transmission connection with one or two clamping blocks 32, and the clamping driving member 31 is used to drive one or two clamping blocks 32 to displace towards or away from the gap hole 221. In this way, the clamping mechanism 3 can realize the positioning of the product 8 to be tested through the cooperation of the clamping driving member 31 and the clamping block 32, effectively avoiding the product 8 to be tested from moving with the test piece 4 during the detection, so as to affect the detection result and reduce the detection precision.

[0064] The clamping driving member 31 can use existing telescopic air cylinders or telescopic electric rods and other linear displacement driving mechanisms, and the output end thereof is connected with one clamping block 32 by welding or screwing and the like, or the clamping driving member 31 can use existing clamping cylinders, and the two output ends thereof are connected with two clamping blocks 32 by welding or screwing and the like.

[0065] Referring to Figure 2 As shown in the drawings, on the basis of the above embodiment, the end of the clamping block 32 towards the feeding track 22 has a V-shaped clamping recess 321. In this way, the induction mechanism 6 clamps the product 8 through the V-shaped clamping recess 321, which not only can improve the contact area of the clamping block 32 and the product 8, effectively improve the fixing effect, but also can adapt to clamp other sizes of products 8, thereby improving the applicability of the induction mechanism 6.

[0066] Referring to Figure 1As shown in an embodiment of the test piece 4, the test piece 4 is detachably installed on the output end of the screw mechanism 5 by screwing or clamping or the like. In this way, the test piece 4 with different specifications of the threaded rod portion 41 can be conveniently replaced according to production needs to match the threaded hole 81 of the actual product 8 to be tested, so that the full-automatic internal thread precision detection device can detect different specifications of the threaded hole 81, greatly improving the application range.

[0067] Referring to Figure 1 As shown in an embodiment of the screw mechanism 5, the screw mechanism 5 includes a lifting driving piece 51 and a rotating driving piece 52. The lifting driving piece 51 is arranged on the rack 1 by screwing or welding or the like and is in transmission connection with the rotating driving piece 52, and the test piece 4 is detachably installed on the output end of the rotating driving piece 52. In this way, the lifting driving piece 51 and the rotating driving piece 52 in combination can realize screw rotation of the test piece 4, so as to screw the threaded rod portion 41 into or out of the threaded hole 81 of the product 8.

[0068] The lifting driving piece 51 described above can use a servo motor-screw nut linear module or a linear motor linear module or the like linear displacement driving mechanism, and the output end thereof is connected with the rotating driving piece 52 by welding or screwing or the like. In this way, the lifting driving piece 51 can accurately control the lifting position of the rotating driving piece 52 and the test piece 4. The rotating driving piece 52 described above can use a rotating motor or the like rotating driving mechanism.

[0069] Referring to Figure 1 As shown, the full-automatic internal thread precision detection device further includes a first position detection piece and a second position detection piece 7. The first position detection piece (not shown in the figure) and the second position detection piece 7 are both installed on the rack 1, the first position detection piece is opposite to the detection station 11, and is used for detecting whether the product 8 is in the detection station 11. The second position detection piece 7 is used for detecting whether the vertical position of the test piece 4 is in place. In this way, the full-automatic internal thread precision detection device can confirm whether the product 8 to be tested is input into the detection station 11 through the first position detection piece, and after the product 8 is in place, other mechanisms are started to perform screw detection, effectively avoiding the situation that the detection station 11 starts detection without the product 8, resulting in incorrect detection results. During the screw detection process, the full-automatic internal thread precision detection device can detect whether the vertical position of the test piece 4 is in place through the second position detection piece 7, so as to control the lifting position of the test piece 4, and ensure the consistency and accuracy of the detection results. It can be seen that the first position detection piece and the second position detection piece 7 can further improve the detection precision of the full-automatic internal thread precision detection device.

[0070] The first position detection member can use an existing infrared sensor or other sensing device. The second position detection member 7 can use an existing position sensor or position switch or other device. The second position detection member 7 can indirectly determine whether the vertical position of the test member 4 is in place by detecting whether the vertical position of the output end of the lifting drive member 51 is in place, or can directly detect whether the vertical position of the test member 4 is in place.

[0071] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A full-automatic internal thread precision detection device, characterized in that, The utility model relates to a product thread hole precision testing device, including: Rack, be equipped with detection station on the rack; Feeding and discharging mechanism, be located in the rack on and be used for inputing the product to be detected one by one detection station and with the product that has been detected classified output detection station; Clamping mechanism, be located in the rack and be located detection station, be used for clamping or loosening the product on detection station; Test piece, with detection station position opposite setting, the end of test piece is equipped with with the thread rod department that matches the thread hole of product; Screw mechanism, be located in the rack and with test piece transmission connection, be used for driving test piece screw motion, with thread rod department is spun into or spun out the thread hole of product; Induction mechanism, be located between test piece and screw mechanism and be used for inducting the torsion between test piece and thread hole, thereby detecting the internal thread precision of thread hole.

2. The full-automatic internal thread precision detection device according to claim 1, characterized in that, The feeding and discharging mechanism includes: Feeding assembly and feeding track, all be equipped with on the rack, the feeding assembly is used for the continuous supply product to be detected feeding track, the detection station sets up at the output end of feeding track; Discharging track, be located in the output end of feeding track one side, the discharging track is parallelly equipped with good product discharging channel and inferior product discharging channel on; Switching drive piece, be equipped with on the rack and with discharging track transmission connection, switching drive piece is used for driving discharging track relative detection station moves, to make the output end of feeding track with good product discharging channel or inferior product discharging channel butt joint.

3. The fully automatic internal thread precision testing device according to claim 2, characterized in that The detection station is equipped with at least two, the number of test piece, screw mechanism, induction mechanism, feeding track, discharging track, switching drive piece and detection station is identical, and one-to-one correspondence.

4. The fully automatic internal thread precision testing device according to claim 3, characterized in that, The feeding assembly includes: Vibrating disc, be equipped with on the rack and be used for continuous output product to be detected one by one; Transfer block and transfer block drive piece, the transfer block is equipped with between vibrating disc and feeding track and is equipped with at least one for accommodating single product to be detected accommodating hole, the transfer block drive piece is equipped with on the rack and with transfer block transmission connection, the transfer block drive piece is used for driving the transfer block reciprocating moves between vibrating disc and feeding track, to make each accommodating hole alternately with the discharge end of vibrating disc, the feeding end position of feeding track opposite and intercommunication; At least two push blocks and push block drive piece, each push block is located in the feeding end one side of each feeding track, the push block drive piece is equipped with on the rack and with push block transmission connection, the push block drive piece is used for driving push block towards or away from the feeding end of corresponding feeding track moves.

5. The fully automatic internal thread accuracy testing device according to any one of claims 2-4, characterized in that, The clamping mechanism includes: One or two clamping blocks, the output end of feeding track is equipped with for the clamping block penetrates the accommodation hole; Clamping drive piece, be equipped with on the rack and with one or two clamping block transmission connection, clamping drive piece is used for driving one or two clamping block towards or away from the displacement of accommodation hole.

6. The fully automatic internal thread precision testing device according to claim 5, characterized in that The clamping block is equipped with V-shaped clamping recess towards the end of feeding track.

7. The full-automatic internal thread precision testing device according to any one of claims 1, 2, 3, 4 and 6, characterized in that, The test piece can be detachably equipped with on the output end of screw mechanism.

8. The fully automatic internal thread precision testing device according to claim 7, characterized in that The screw mechanism comprises a lifting driving element and a rotating driving element, the lifting driving element is arranged on the rack and is in transmission connection with the rotating driving element, and the test element is detachably arranged on the output end of the rotating driving element.

9. The full-automatic internal thread precision detection device according to any one of claims 1, 2, 3, 4, 6 and 8, characterized in that, The full-automatic internal thread precision detection device further comprises a first position detection element and a second position detection element arranged on the rack, the first position detection element is opposite to the detection station position and is used for detecting whether the detection station has products, and the second position detection element is used for detecting whether the vertical position of the test element is in place.

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