Threaded hole automatic detection device

Abstract

The utility model relates to the technical field of threaded hole automatic detection devices, and particularly discloses a threaded hole automatic detection device which comprises a conveying frame, a frame, a positioning assembly, a detection product limiting assembly, a to-be-detected product limiting assembly, a detection assembly and a control unit. A conveying wheel assembly is installed in the conveying frame, the detected product limiting assembly and the to-be-detected product limiting assembly are arranged on the two sides of the frame respectively, the positioning assembly is arranged on the conveying frame and located between the detected product limiting assembly and the to-be-detected product limiting assembly, and the detected product limiting assembly is used for blocking a detected product on the inner side of the positioning assembly. According to the design of the detection device, the thread depth and the thread diameter of the detected product can be detected one by one, and the next product to be detected is effectively prevented from colliding with the product being detected, so that the detection efficiency and the quality of the product are improved, and the problem that cutter breakage cannot be found in time in an existing sampling inspection mode is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic detection devices for threaded holes, and specifically relates to an automatic detection device for threaded holes. Background Art

[0002] Thread detection is one of the key quality control links in industrial production, and its development has always received extensive attention. The existing detection method is to conduct spot checks on the produced products. The spot checks are carried out at a certain ratio, and it is extremely easy to cause the phenomenon of broken tools during tapping of the products. Then, it is very easy to miss the detection in time during spot checks, resulting in defective products flowing to the next process. Therefore, it is necessary to detect each product in the whole batch, which seriously delays the processing efficiency and delivery deadline.

[0003] When the existing thread detection equipment detects products, it cannot separate the detected products and the products to be detected, so that the products are crowded, causing the products to protrude or shift, resulting in the inclination of the detected products and the threads in the threaded holes, thus easily causing the risk of breaking the thread gauge. At the same time, the existing drives for controlling the lifting and rotation of the thread gauge are relatively rigid and do not have a buffering force. However, the sudden impact force is extremely likely to cause the risk of breaking the thread gauge or the thread gauge hitting and damaging the detected products, seriously reducing the qualification rate of the detected products. Therefore, there is an urgent need to design an automatic detection device for threaded holes to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic detection device for threaded holes, which solves the problems existing in the existing automatic thread detection technology, such as slow speed, limited application range, and high detection cost, the problem that the existing thread detection equipment cannot separate the detected products and the products to be detected, resulting in product protrusion or offset, and thread inclination causing the thread gauge to break, and the problem that the existing drives for controlling the lifting and rotation of the thread gauge are relatively rigid, easily causing the thread gauge to break or the thread gauge to hit and damage the detected products.

[0005] To solve the above technical problems, the utility model provides an automatic detection device for threaded holes, including a conveying frame, a frame, a positioning component, a detected product limiting component, a product to be detected limiting component, a detection component, and a control unit. The lower part of the frame is connected to the outer side wall of the conveying frame. A conveying wheel assembly is installed in the conveying frame. The detected product limiting component and the product to be detected limiting component are respectively arranged on both sides of the frame. The positioning component is arranged on the conveying frame and is located between the detected product limiting component and the product to be detected limiting component. The detected product limiting component is used to block the detected products inside the positioning component. A first sensing component is arranged on one side of the positioning component, and the first sensing component is connected to the control unit.

[0006] The detection component includes a driving component, a locking sleeve, and a thread gauge. The driving component is installed on the upper part of the frame, and its output end is connected with a telescopic connecting rod. The thread gauge is installed at the lower end of the telescopic connecting rod through the locking sleeve. The thread gauge is used to detect the threaded hole of the detected product, and the locking sleeve is provided with an induction point for inductive cooperation with the first sensing component.

[0007] Further, the driving component includes a first fixing plate, a first cylinder, a first connecting plate, and a servo motor. One end of the first fixing plate is fixedly arranged at the top of the frame. The first cylinder is fixedly arranged at the other end of the first fixing plate, and its output end passes through the first fixing plate and extends to be fixed with the first connecting plate. The servo motor is fixed on the first connecting plate, and its output end passes through the first connecting plate and is connected with the telescopic connecting rod.

[0008] Further, the telescopic connecting rod includes a connecting rod body, a linear bearing, and a telescopic sleeve body. The connecting rod body is connected with the output end of the servo motor. The linear bearing is arranged in the connecting rod body. The telescopic sleeve body is slidably arranged in the linear bearing. A blocking pin is transversely arranged in the telescopic sleeve body and the linear bearing. Waist-shaped grooves for sliding with the blocking pin are formed on both side walls of the telescopic sleeve body. A spring is arranged in the telescopic sleeve body. One end of the spring is fixed to the bottom of the blocking pin, and the other end abuts against the inner bottom surface of the telescopic sleeve body. The thread gauge is installed at the bottom of the telescopic sleeve body through the locking sleeve.

[0009] Further, the positioning component includes a limiting plate and a second cylinder. The limiting plate is arranged on the upper surface of one side of the conveying rack. The second cylinder is arranged on the upper surface of the other side of the conveying rack, and its output end is fixedly connected with a side pushing pressure plate. The side pushing pressure plate cooperates with the limiting plate under the push of the second cylinder to clamp the detected product.

[0010] Further, the detected product limiting component includes a third cylinder, a first L-shaped connecting plate, and a first baffle. The third cylinder is fixedly arranged on one side wall of the frame through a second fixing plate, and its output end is fixedly connected with the horizontal support plate of the first L-shaped connecting plate. The first baffle is fixedly arranged on one side of the horizontal support plate of the first L-shaped connecting plate and is used to abut against the detected product. The vertical support plate of the first L-shaped connecting plate is located outside the second fixing plate.

[0011] Further, the product to be detected limiting component includes a fourth cylinder, a second L-shaped connecting plate, and a second baffle. The fourth cylinder is fixedly arranged on the other side wall of the frame through a third fixing plate, and its output end is fixedly connected to the horizontal support plate of the second L-shaped connecting plate. The second baffle is fixedly arranged on one side of the horizontal support plate of the second L-shaped connecting plate, and the vertical support plate of the second L-shaped connecting plate is located outside the third fixing plate.

[0012] Further, a second sensing component connected to the control unit is penetrated through the first baffle, and the contact end of the second sensing component is located on the contact surface where the first baffle contacts the detected product.

[0013] Further, a third sensing component connected to the control unit is provided on the fourth cylinder, and the contact end of the third sensing component is used to sense the detected product.

[0014] Further, a fourth sensing component connected to the control unit is provided on the telescopic connecting rod, and the contact end of the fourth sensing component is aligned with the threaded hole of the detected product.

[0015] The beneficial effects of the present utility model: The design of the driving component of the present utility model enables the thread gauge to perform both up-and-down movement and rotation driven by the driving component, so as to improve the multi-action operation of the thread gauge to meet the screwing of the thread gauge, thereby meeting the detection conditions for screwing the detected product;

[0016] The design of the telescopic connecting rod enables the telescopic sleeve body to move up and down within the linear bearing. While moving, the first cylinder drives the servo motor downward to drive the connecting rod body downward, and the blocking pin then moves downward within the waist-shaped grooves on both side walls of the telescopic sleeve body. The spring connected to the blocking pin is compressed. After the first cylinder reaches the position, the servo motor drives the connecting rod body to rotate, and the telescopic sleeve body continues to move downward and rotate simultaneously under the elastic force of the spring, so as to drive the telescopic sleeve body and the thread gauge to rotate and move downward at the same time to detect the threaded hole of the detected product. During the detection, it can protect the detected product to avoid the sudden impact of the thread gauge and cause collision with the detected product, resulting in defective or scrapped detected products;

[0017] The design of the positioning component and the product to be detected limiting component can block the detected product between the limiting plate and the side pushing pressing plate through the first baffle of the product to be detected limiting component, and drive the side pushing pressing plate to cooperate with the limiting plate to clamp the detected product through the second cylinder, so that it can limit the detected product through three-way positioning to improve the consistency of the position of the threaded hole of the detected product and improve the accuracy of the thread gauge detecting the threaded hole;

[0018] The design of the limit component for the product to be detected and the third sensing component enables it to sense the passing of the product to be detected at any time. The control unit controls the first baffle of the limit component for the product to be detected to block the product to be detected, and then triggers the sensing point of the second sensing component on the first baffle to send a signal to the control unit. The control unit then controls the second baffle of the limit component for the product to be detected to move downward to block the undetected product, thereby achieving intelligent isolation of the detected product and the product to be detected.

[0019] The design of the fourth sensing component on the telescopic connecting rod can monitor the position of the threaded hole of the product to be detected, so that the thread gauge can accurately detect the threaded hole, thereby improving the detection accuracy of the threaded hole. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the present invention, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the broken overall structure diagram of an automatic threaded hole detection device according to an embodiment of the present invention;

[0022] Figure 2 is the cross-sectional view of the telescopic connecting rod of an automatic threaded hole detection device according to an embodiment of the present invention;

[0023] In the figure: 1 - conveying frame, 2 - frame, 3 - positioning component, 4 - limit component for the detected product, 5 - limit component for the product to be detected, 6 - detection component, 7 - conveying wheel component, 8 - first sensing component, 9 - detected product, 31 - limit plate, 32 - second cylinder, 33 - side push pressing plate, 41 - third cylinder, 42 - first L-shaped connecting plate, 43 - first baffle, 44 - second fixing plate, 51 - fourth cylinder, 52 - second L-shaped connecting plate, 53 - second baffle, 54 - third fixing plate, 61 - locking sleeve, 62 - thread gauge, 63 - driving component, 64 - telescopic connecting rod, 631 - first fixing plate, 632 - first cylinder, 633 - first connecting plate, 634 - servo motor, 641 - connecting rod body, 642 - linear bearing, 643 - telescopic sleeve body, 644 - blocking pin, 645 - spring, 6431 - waist-shaped groove. Detailed Embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without making creative efforts fall within the scope of protection of the utility model.

[0025] The following will be described in detail in conjunction with a specific embodiment of the utility model and the attached Figure 1-2 Specifically, an automatic thread hole detection device is disclosed, which includes a conveying frame 1, a frame 2, a positioning component 3, a detected product limiting component 4, a product to be detected limiting component 5, a detection component 6 and a control unit. The lower part of the frame 2 is connected to the outer side wall of the conveying frame 1. A conveying wheel assembly 7 is installed in the conveying frame 1. The detected product limiting component 4 and the product to be detected limiting component 5 are respectively arranged on both sides of the frame 2. The positioning component 3 is arranged on the conveying frame 1 and is located between the detected product limiting component 4 and the product to be detected limiting component 5. The detected product limiting component 4 is used to block the detected product 9 inside the positioning component 3. A first sensing component 8 is arranged on one side of the positioning component 3, and the first sensing component 8 is connected to the control unit.

[0026] The detection component 6 includes a driving component 63, a locking sleeve 61 and a thread gauge 62. The driving component 63 is installed on the upper part of the frame 2, and its output end is connected with a telescopic connecting rod 64. The thread gauge 62 is installed at the lower end of the telescopic connecting rod 64 through the locking sleeve 61. The thread gauge 62 is used to detect the thread hole of the detected product 9. The locking sleeve 61 is provided with an induction point for inductive cooperation with the first sensing component 8. The thread gauge 62 rotates and moves downward simultaneously under the driving force of the driving component 63. The first sensing component 8 senses the induction point on the locking sleeve 61 to detect the depth and pitch diameter of the thread hole of the detected product 9.

[0027] The driving component 63 includes a first fixing plate 631, a first cylinder 632, a first connecting plate 633 and a servo motor 634. One end of the first fixing plate 631 is fixedly arranged at the top of the frame 2. The first cylinder 632 is fixedly arranged at the other end of the first fixing plate 631, and its output end passes through the first fixing plate 631 and extends to be fixed to the first connecting plate 633. The servo motor 634 is fixed on the first connecting plate 633, and its output end passes through the first connecting plate 633 and is connected to the telescopic connecting rod 64. The design of the above driving component 63 can enable the thread gauge 62 to perform both up and down movement and rotation actions under the drive of the driving component 63, so as to improve the multi-action operation of the thread gauge 62 to meet the screwing of the thread gauge 62, thereby meeting the detection conditions for screwing the detected product.

[0028] The telescopic connecting rod 64 includes a connecting rod body 641, a linear bearing 642, and a telescopic sleeve body 643. The connecting rod body 641 is connected to the output end of the servo motor 634. The linear bearing 642 is arranged inside the connecting rod body 641. The telescopic sleeve body 643 is slidably arranged inside the linear bearing 642. A blocking pin 644 is horizontally inserted through the telescopic sleeve body 643 and the linear bearing 642. Waist-shaped grooves 6431 facilitating the sliding of the blocking pin 644 are formed on both side walls of the telescopic sleeve body 643. A spring 645 is arranged inside the telescopic sleeve body 643. One end of the spring 645 is fixed to the bottom of the blocking pin 644, and the other end abuts against the inner bottom surface of the telescopic sleeve body 643. The thread gauge 62 is installed at the bottom of the telescopic sleeve body 643 through a locking sleeve 61. A fourth sensing component connected to the control unit is arranged on the telescopic connecting rod 64. The contact end of the fourth sensing component is aligned with the threaded hole of the test product 9. The design of the fourth sensing component on the telescopic connecting rod 64 can monitor the position of the threaded hole of the test product 9, so that the thread gauge 62 can accurately detect the threaded hole, thereby improving the detection accuracy of the threaded hole;

[0029] The above design of the telescopic connecting rod 64 enables the telescopic sleeve body 643 to move up and down inside the linear bearing 642. While moving, the first cylinder 632 drives the servo motor 634 downward to drive the connecting rod body 641 downward. Then the blocking pin 644 moves downward in the waist-shaped grooves 6431 on both side walls of the telescopic sleeve body 643, and the spring 645 connected to the blocking pin 644 is compressed. After the first cylinder 632 reaches the position, the servo motor 634 drives the connecting rod body 641 to rotate. The telescopic sleeve body 643 continues to move downward and rotate simultaneously under the elastic force of the spring 645, so as to drive the telescopic sleeve body 643 and the thread gauge 62 to rotate and move downward simultaneously to detect the threaded hole of the test product, and can play a protective role for the test product during the detection to avoid the situation that the thread gauge 62 collides with the test product due to sudden impact, resulting in defective or scrapped test products.

[0030] The positioning component 3 includes a limit plate 31 and a second cylinder 32. The limit plate 31 is arranged on the upper surface of one side of the conveying rack 1, and the second cylinder 32 is arranged on the upper surface of the other side of the conveying rack 1. The output end of the second cylinder 32 is fixedly connected with a side push pressing plate 33. The side push pressing plate 33 cooperates with the limit plate 31 to clamp the test product 9 under the push of the second cylinder 32.

[0031] The detection product limiting component 4 includes a third cylinder 41, a first L-shaped connecting plate 42 and a first baffle 43. The third cylinder 41 is fixedly arranged on one side wall of the frame 2 through a second fixing plate 44, and its output end is fixedly connected to the horizontal plate of the first L-shaped connecting plate 42. The first baffle 43 is fixedly arranged on one side of the horizontal plate of the first L-shaped connecting plate 42 and is used for abutting against the detection product 9. A second sensing component connected to the control unit is penetrated through the first baffle 43, and the contact end of the second sensing component is located on the contact surface where the first baffle 43 contacts the detection product 9. The vertical plate of the first L-shaped connecting plate 42 is located outside the second fixing plate 44.

[0032] The design of the positioning component 3 and the detection product limiting component 4 can block the detection product between the limiting plate 31 and the side pushing pressing plate 33 by the first baffle 43 of the detection product limiting component 4, and drive the side pushing pressing plate 33 to cooperate with the limiting plate 31 to clamp the detection product 9 through the second cylinder 32, so that the detection product 9 can be limited in three directions to improve the consistency of the position of the threaded hole of the detection product 9 and improve the accuracy of the thread gauge 62 for detecting the threaded hole.

[0033] The to-be-detected product limiting component 5 includes a fourth cylinder 51, a second L-shaped connecting plate 52 and a second baffle 53. A third sensing component connected to the control unit is arranged on the fourth cylinder 51, and the contact end of the third sensing component is used for sensing the detection product 9. The fourth cylinder 51 is fixedly arranged on the other side wall of the frame 2 through a third fixing plate 54, and its output end is fixedly connected to the horizontal plate of the second L-shaped connecting plate 52. The second baffle 53 is fixedly arranged on one side of the horizontal plate of the second L-shaped connecting plate 52. The vertical plate of the second L-shaped connecting plate 52 is located outside the third fixing plate 54. The design of the above to-be-detected product limiting component 5 and the third sensing component can enable it to sense the passing of the detection product 9 at any time. The control unit controls the first baffle 43 of the detection product limiting component 4 to block the detection product 9, and then triggers the sensing point of the second sensing component on the first baffle 43 to send a signal to the control unit. The control unit then controls the second baffle 53 of the to-be-detected product limiting component 5 to move downward to block the undetected product 9, so as to intelligently isolate the detection product and the to-be-detected product.

[0034] The design of the detection device can detect the thread depth and thread diameter of the detection product 9 one by one, effectively avoiding the collision between the next to-be-detected product and the product being detected, so as to improve the detection efficiency and quality of the product and solve the problem that the existing sampling inspection method cannot detect the broken tool in time.

[0035] The working process of the present utility model:

[0036] The control unit controls the output end of the third cylinder 41 to extend, driving the first L-shaped connecting plate 42 and the first baffle 43 downward to block the product to be detected. When the detected product 9 after tapping is conveyed by the conveying wheel assembly 7 to the lower part of the fourth cylinder 51 of the product to be detected limiting assembly 5, the third sensing assembly on the fourth cylinder 51 senses the detected product 9 and sends a signal to the control unit. The control unit then controls the fourth cylinder 51 to extend downward to push the second L-shaped connecting plate 52 and the second baffle 53 downward to block the next product to be detected. Before the second L-shaped connecting plate 52 and the second baffle 53 descend, the conveying wheel assembly 7 has conveyed the detected product 9 in the direction of the first baffle 43.

[0037] When the detected product 9 triggers the second sensing assembly on the first baffle 43, the second sensing assembly sends a signal to the control unit. The control unit then controls the second cylinder 32 to drive the side-pushing pressure plate 33 to move towards the limiting plate 31 to clamp the detected product 9. When the fourth sensing assembly on the telescopic connecting rod 64 senses the threaded hole of the detected product 9, it sends a signal to the control unit. The control unit then controls the first cylinder 632 to move downward to drive the first connecting plate 633 and the servo motor 634 to move downward. At this time, the connecting rod body 641 continues to move downward under the thrust of the first cylinder 632. At this time, the thread gauge 62 connected to the bottom of the telescopic connecting rod 64 abuts against the orifice of the threaded hole of the detected product 9. The first cylinder 632 continues to drive the connecting rod body 641 downward. The blocking pin 644 penetrating through the linear bearing 642 inside the connecting rod body 641 slides downward in the waist-shaped grooves 6431 on both side walls of the telescopic sleeve body 643 to compress the spring 645. When the first cylinder 632 extends to the maximum stroke position, it stops working. At this time, the thread gauge 62 still abuts against the orifice of the threaded hole of the detected product 9. The control unit controls the servo motor 634 to rotate to drive the thread gauge 62 to screw into the threaded hole of the detected product 9.

[0038] When the first sensing assembly 8 senses the sensing point on the locking sleeve 61, it means that the depth of the threaded hole is qualified. At the same time, the thread gauge 62 also detects the thread diameter of the threaded hole of the detected product 9. When the detection is qualified, the servo motor 634 drives the thread gauge 62 to reverse to withdraw from the threaded hole of the detected product 9. After withdrawal, the first cylinder 632 retracts to the minimum stroke to lift the thread gauge 62. When the first sensing assembly 8 does not sense the sensing point on the locking sleeve 61 within the specified time, the first sensing assembly 8 sends a signal to the control unit. The control unit then sends a signal to the alarm system, and the alarm system issues an alarm to remind the operator to check, which improves the detection accuracy of the detected product 9. At the same time, it can also ensure the accuracy of the threaded hole detection of each detected product 9 to improve the detection efficiency of the product.

[0039] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A threaded hole automatic detection device, characterized in that: The invention comprises a conveying frame (1), a frame (2), a positioning component (3), a detection product limiting component (4), a to-be-detected product limiting component (5), a detection component (6) and a control unit, wherein the lower part of the frame (2) is connected to the outer side wall of the conveying frame (1), a conveying wheel component (7) is installed in the conveying frame (1), the detection product limiting component (4) and the to-be-detected product limiting component (5) are respectively arranged on both sides of the frame (2), the positioning component (3) is arranged on the conveying frame (1) and is located between the detection product limiting component (4) and the to-be-detected product limiting component (5), the detection product limiting component (4) is used to block the detection product (9) on the inner side of the positioning component (3), a first sensor component (8) is arranged on one side of the positioning component (3), and the first sensor component (8) is connected to the control unit, The detection component (6) comprises a driving component (63), a locking sleeve (61) and a threaded gauge (62); the driving component (63) is mounted on the upper part of the frame (2), and an output end thereof is connected to a telescopic connecting rod (64); the threaded gauge (62) is mounted on the lower end of the telescopic connecting rod (64) through the locking sleeve (61); the threaded gauge (62) is used to detect the threaded hole of the detection product (9); and the locking sleeve (61) is provided with a sensing point for sensing and cooperating with the first sensor component (8).

2. The automatic threaded hole detection device according to claim 1, characterized in that: The driving assembly (63) comprises a first fixed plate (631), a first cylinder (632), a first connecting plate (633) and a servo motor (634); one end of the first fixed plate (631) is fixedly arranged on the top of the frame (2); the first cylinder (632) is fixedly arranged on the other end of the first fixed plate (631), and its output end passes through the first fixed plate (631) and extends out to be fixed to the first connecting plate (633); the servo motor (634) is fixed on the first connecting plate (633), and its output end passes through the first connecting plate (633) and is connected to the telescopic connecting rod (64).

3. The automatic threaded hole detection device according to claim 2, characterized in that: The telescopic connecting rod (64) comprises a connecting rod body (641), a linear bearing (642) and a telescopic sleeve (643); the connecting rod body (641) is connected to the output end of the servo motor (634); the linear bearing (642) is arranged in the connecting rod body (641); the telescopic sleeve (643) is slidably arranged in the linear bearing (642); and blocking pins are transversely penetrated in the telescopic sleeve (643) and the linear bearing (642). (644), waist-shaped grooves (6431) are provided on both side walls of the telescopic sleeve (643) for facilitating sliding with the blocking pin (644), a spring (645) is provided inside the telescopic sleeve (643), one end of the spring (645) is fixed to the bottom of the blocking pin (644), and the other end is in contact with the inner bottom surface of the telescopic sleeve (643), and the tooth gauge (62) is installed at the bottom of the telescopic sleeve (643) through the locking sleeve (61).

4. The automatic threaded hole detection device according to claim 1, characterized in that: The positioning assembly (3) comprises a limit plate (31) and a second cylinder (32), wherein the limit plate (31) is arranged on the upper surface of one side of the conveying frame (1), and the second cylinder (32) is arranged on the upper surface of the other side of the conveying frame (1), and its output end is fixedly connected with a side push plate (33), and the side push plate (33) cooperates with the limit plate (31) to clamp the inspection product (9) under the push of the second cylinder (32).

5. The automatic threaded hole detection device according to claim 1, characterized in that: The detection product limiting assembly (4) comprises a third cylinder (41), a first L-shaped connecting plate (42) and a first baffle (43); the third cylinder (41) is fixedly arranged on a side wall of the frame (2) via a second fixing plate (44), and its output end is fixedly connected to a transverse support plate of the first L-shaped connecting plate (42); the first baffle (43) is fixedly arranged on one side of the transverse support plate of the first L-shaped connecting plate (42) and is used to abut against the detection product (9); the vertical support plate of the first L-shaped connecting plate (42) is located on the outer side of the second fixing plate (44).

6. The automatic threaded hole detection device according to claim 1, characterized in that: The product limit assembly (5) to be detected comprises a fourth cylinder (51), a second L-shaped connecting plate (52) and a second baffle (53); the fourth cylinder (51) is fixedly arranged on the other side wall of the frame (2) through a third fixing plate (54), and its output end is fixedly connected to the transverse support plate of the second L-shaped connecting plate (52); the second baffle (53) is fixedly arranged on one side of the transverse support plate of the second L-shaped connecting plate (52); and the vertical support plate of the second L-shaped connecting plate (52) is located on the outer side of the third fixing plate (54).

7. The automatic threaded hole detection device according to claim 5, characterized in that: The first baffle (43) is provided with a second sensor component connected to the control unit, and the contact end of the second sensor component is located on the contact surface between the first baffle (43) and the detection product (9).

8. The threaded hole automatic detection device according to claim 6, characterized in that: The fourth cylinder (51) is provided with a third sensor component connected to the control unit, and the contact end of the third sensor component is used to sense the detection product (9).

9. The automatic threaded hole detection device according to claim 1, characterized in that: The telescopic connecting rod (64) is provided with a fourth sensor component connected to the control unit, and the contact end of the fourth sensor component is aligned with the threaded hole of the detection product (9).

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