Swing detection device for automobile screw rod production

Abstract

The invention belongs to the field of automobile screw rod detection, and particularly relates to a swing detection device for automobile screw rod production, which comprises a screw rod main body, the screw rod main body is fixedly connected with an output shaft of a motor, the motor is fixedly connected to a mounting plate, one side of the mounting plate is in contact with a first shell, and the other side of the mounting plate is in contact with a second shell. The bottom end of the mounting plate and the bottom end of the first shell are fixedly connected to the second shell, the bottom end of the second shell is fixedly connected with a bottom plate, the top end of the first shell is fixedly connected with two sets of fixing frames, the fixing frames are slidably connected with an instrument stand, and the top end of the instrument stand is fixedly connected with a detection instrument. Through the structural design of the supporting mechanism, the function of supporting the bottom end of the screw rod main body in the process of detecting the screw rod main body is achieved, so that it is guaranteed that the screw rod main body can stably rotate, when a detection instrument moves to the supporting block, the supporting block can move towards the two sides, and therefore it is avoided that movement of the detection instrument is hindered.

Description

Technical Field

[0001] The invention relates to the field of automobile screw rod detection, in particular to a swing detection device for automobile screw rod production. Background Art

[0002] The screw is a transmission element used to convert rotational motion into linear motion. It is relatively common in automotive accessories. Since the screw has high requirements for precision, it is necessary to test various parameters of the screw before assembly, such as using a swing detection device to detect the runout of the screw.

[0003] According to the patent document CN202420164919.3, a kind of automobile motor screw rod swing detection equipment is proposed, including a main body component, the main body component includes a base, a control panel, a display screen, an operation button, a support plate, a positioning pin, an automobile motor, a bracket, a cylinder, a pressure plate and an automobile screw rod; the control panel is installed on the front surface of the base, and the two support plates are symmetrically fixedly connected to the upper surface of the base. The utility model quickly locates the automobile motor through the positioning pin, drives the pressure plate to move through the cylinder, fixes the automobile motor to one side of the support plate, saves the installation time of the automobile motor, detects the distance from the automobile screw rod to the support ring in different directions through four laser sensors, and can quickly determine whether the automobile screw rod is installed in place. After installation, the automobile screw rod is driven to rotate by the automobile motor, and the swing is detected by the laser sensor. The operation is simple and convenient, saving time, and improving the efficiency of automobile motor screw rod swing detection.

[0004] However, in the process of detecting the automotive motor screw, the screw shaft swing detection equipment in the above technology has a large swing amplitude due to the fact that most of the bottom end of the screw shaft is in a suspended state. When the motor drives the screw shaft to rotate, the bottom end of the screw shaft lacks support, causing the screw shaft to swing too much during the rotation process, resulting in a large error in the detection result. Therefore, in order to solve the above problem, a swing detection device for automotive screw shaft production is proposed. Summary of the invention

[0005] In order to solve the problem of the screw rod swing detection equipment in the above technology, during the detection of the automobile motor screw rod, since most of the bottom end of the screw rod is in a suspended state, when the motor drives the screw rod to rotate, the bottom end of the screw rod lacks support, causing the screw rod to swing too much during the rotation process, resulting in a large error in the detection result. The present invention proposes a swing detection device for automobile screw rod production.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the present invention describes a swing detection device for automobile screw rod production, comprising a screw rod main body, the screw rod main body is fixedly connected to the output shaft of the motor, the motor is fixedly connected to the mounting plate, one side of the mounting plate is in contact with the first shell, the bottom ends of the mounting plate and the first shell are both fixedly connected to the second shell, the bottom end of the second shell is fixedly connected to a bottom plate, the top end of the first shell is fixedly connected to two groups of fixing frames, the fixing frame is slidably connected to an instrument frame, the top end of the instrument frame is fixedly connected to a detection instrument, the bottom end of the screw rod main body is provided with a supporting mechanism, the supporting mechanism is used to provide support to the bottom end of the screw rod main body during the detection of the screw rod main body, the bottom end of the instrument frame is provided with an adjusting mechanism, the adjusting mechanism is used to adjust the position of the rack when the detection instrument is reset, and the interior of the first shell is provided with a fixing mechanism, the fixing mechanism is used to fix the position of the support block.

[0007] The top end of the rotating shaft is fixedly connected with a gear, and the top end of the rotating shaft is fixedly connected with a gear. The gear is connected with the gear train by a gear rotation.

[0008] Preferably, the adjusting mechanism comprises a through slot, which passes through the connecting shell, an extension plate is slidably connected inside the through slot, the extension plate is fixedly connected to both sides of the connecting block, both sides of the connecting block are fixedly connected to second magnets, the inner wall of the connecting shell is fixedly connected to two groups of first magnets, the second magnets are located below the extension plate, a group of the second magnets is attracted to a group of first magnets, a group of the extension plates is close to the inner wall of the sliding slot, and two groups of abutment blocks are fixedly connected to the inner wall of the sliding slot.

[0009] Preferably, the fixing mechanism includes an insertion rod, which is fixedly connected to the support block, and the side of the insertion rod away from the support block is inserted into the interior of the fixed shell, and the fixed shell is provided with two groups, and the fixed shell is fixedly connected to the inner wall of the first outer shell, and the top of the inner wall of the fixed shell is fixedly connected with four groups of protrusions, and two adjacent groups of protrusions are fixedly connected with a connecting frame and two groups of connecting springs, and the connecting frame passes through the partition, and the partition is fixedly connected to the middle part of the movable baffle, and the movable baffle is provided with two groups, and the side of the connecting spring away from the protrusion contacts the partition, and the outer shape of the movable baffle is trapezoidal in design.

[0010] Preferably, an extension column is fixedly connected to a side of the fixed shell close to the insertion rod, and the insertion rod is inserted into the extension column.

[0011] Preferably, a gasket is fixedly connected to the extension column, and the gasket is made of rubber material.

[0012] Preferably, the return spring is sleeved on the outside of the fixing rod, the fixing rod passes through the supporting column, and both sides of the fixing rod are fixedly connected to the inner wall of the long slot.

[0013] Preferably, the bottom end of the rack contacts a supporting plate, the cross section of the supporting plate is L-shaped, and the supporting plate is fixedly connected to the inner wall of the second shell.

[0014] Preferably, the top end of the support block is designed to be arc-shaped, and the top end of the support block is rotatably connected to multiple groups of rolling columns, and the rolling columns are in contact with the bottom end of the screw rod body.

[0015] Preferably, the interior of the movable baffle is hollowed out, and the two groups of movable baffles are in contact with each other.

[0016] The present invention is beneficial in that: 1. The present invention realizes the function of supporting the bottom end of the screw rod body during the detection of the screw rod body through the structural design of the supporting mechanism, thereby ensuring that the screw rod body can rotate stably, and when the detection instrument moves to the support block, the support block can move to both sides, thereby avoiding obstruction to the movement of the detection instrument, and solves the problem of screw rod swing detection equipment in the prior art. During the detection of the automobile motor screw rod, since most of the bottom end of the screw rod is in a suspended state, when the motor drives the screw rod to rotate, the bottom end of the screw rod will lack support, causing the screw rod to swing too much during the rotation process, resulting in a large error in the detection result.

[0017] 2. The present invention realizes the function of adjusting the positions of the two sets of racks when the detection instrument moves to the right for reset through the structural design of the adjustment mechanism, so that one set of racks is released from meshing with the gear and the other set of racks continues to mesh with the gear, so as to avoid the support block being unable to move normally to both sides due to the reverse rotation of the gear, and ensure that the gear will only rotate in the same direction when the detection instrument moves to the left and right.

[0018] 3. The present invention realizes the function of fixing the positions of the remaining support blocks when one pair of support blocks moves to both sides through the structural design of the fixing mechanism, so as to ensure that the support blocks supporting the bottom end of the screw rod body will not continue to move at this time, and avoid the poor supporting effect of the support blocks on the bottom end of the screw rod body due to the simultaneous movement of multiple groups of support blocks, which in turn causes a large deviation in the detection data, thereby ensuring the supporting effect of the support blocks on the bottom end of the screw rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the bottom of the present invention; Figure 3 It is a structural schematic diagram of the top end of the first housing of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 It is a schematic diagram of the support plate position structure of the present invention; Figure 6 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 7 It is a structural schematic diagram of the support mechanism of the present invention; Figure 8 It is a structural schematic diagram of the bottom end of the disc of the present invention; Fig. 9 It is a structural schematic diagram of the regulating mechanism of the present invention; Fig.10 It is a schematic diagram of the structure inside the connection shell of the present invention; Fig.11 It is a structural schematic diagram of the top end of the second shell of the present invention.

[0021] In the figure: 1, screw rod body; 20, motor; 21, mounting plate; 22, first housing; 23, bottom plate; 24, second housing; 25, detection instrument; 26, sliding groove; 28, support block; 29, rolling column; 30, plug rod; 31, fixed rod; 32, return spring; 33, long groove; 34, gear; 35, rotating shaft; 36, disc; 37, support column; 38, connecting rod; 39, push rod; 40, instrument frame; 41. Fixed frame; 42. Connecting shell; 43. Through slot; 44. First magnet; 45. Mounting rod; 46. Extension plate; 47. Second magnet; 48. Connecting block; 49. Connecting plate; 50. Rack; 51. Movable slot; 52. Fixed shell; 53. Protrusion; 54. Connecting spring; 55. Connecting frame; 56. Movable baffle; 57. Partition plate; 58. Gasket; 59. Extension column; 60. Supporting tray; 61. Abutment block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0023] See also Figure 1 - Fig.11 As shown, a swing detection device for automobile screw production includes a screw body 1, the screw body 1 is fixedly connected to the output shaft of the motor 20, the motor 20 is fixedly connected to the mounting plate 21, one side of the mounting plate 21 is in contact with the first shell 22, the bottom ends of the mounting plate 21 and the first shell 22 are both fixedly connected to the second shell 24, the bottom end of the second shell 24 is fixedly connected to the bottom plate 23, the top end of the first shell 22 is fixedly connected to two groups of fixing frames 41, the fixing frames 41 are slidably connected to the instrument frame 40, the top end of the instrument frame 40 is fixedly connected to the detection instrument 25, the bottom end of the screw body 1 is provided with a supporting mechanism, the supporting mechanism is used to provide support to the bottom end of the screw body 1 during the detection process of the screw body 1, the bottom end of the instrument frame 40 is provided with an adjusting mechanism, the adjusting mechanism is used to adjust the position of the rack 50 when the detection instrument 25 is reset, and the interior of the first shell 22 is provided with a fixing mechanism, the fixing mechanism is used to fix the position of the support block 28; Furthermore, the support mechanism includes multiple groups of support blocks 28, the bottom end of the support block 28 is fixedly connected to the support column 37, the bottom end of the support column 37 is fixedly connected to the push rod 39, the push rod 39 is rotatably connected to the connecting rod 38, the connecting rod 38 is rotatably connected to the bottom end of the disk 36, the middle part of the disk 36 is fixedly connected to the rotating shaft 35, the bottom end of the rotating shaft 35 is rotatably connected to the bottom plate 23, the top end of the rotating shaft 35 is fixedly connected to the gear 34, one side of the support column 37 is fixedly connected to the return spring 32, and the return spring 32 is fixedly connected to the inner wall of the long slot 33. Then, the long slot 33 is provided on the second housing 24, a sliding slot 26 is provided in the middle of the first housing 22, a connecting shell 42 is fixedly connected to the bottom end of the instrument frame 40, a mounting rod 45 is fixedly connected to the inner wall of the connecting shell 42, a connecting block 48 is slidably connected to the mounting rod 45, the bottom end of the connecting block 48 is fixedly connected to a connecting plate 49, two sets of racks 50 are fixedly connected to the bottom end of the connecting plate 49, one set of the racks 50 is close to one side of the gear 34, the connecting block 48 is slidably connected in a movable slot 51, and the movable slot 51 is provided on the second housing 24; Through the structural design of the support mechanism, the function of supporting the bottom end of the screw body 1 is realized during the detection of the screw body 1, so as to ensure that the screw body 1 can rotate stably, and when the detection instrument 25 moves to the support block 28, the support block 28 can move to both sides, so as to avoid hindering the movement of the detection instrument 25. When working, the motor 20 is first fixed on the mounting plate 21, and the support block 28 can provide support for the bottom end of the screw body 1, wherein the support block 28 can be provided in multiple groups according to actual conditions. When the runout of the screw body 1 is to be detected, the instrument frame 40 is pushed, and the instrument frame 40 will slide in the sliding groove 26, and the detection instrument 25 fixed on the instrument frame 40 can detect the screw body 1. The left and right sides of the instrument frame 40 are slidably connected to the fixed frame 41 to ensure that the instrument frame 40 can move stably. When the connecting shell 42 fixed at the bottom end of the instrument frame 40 moves to the support block 28, one set of racks 50 will first mesh with the gear 34 and drive the gear 34 to rotate. During the rotation, the connecting rod 38 connected to the disc 36 pushes the push rod 39 to move to both sides, and the bottom end of the support block 28 is connected to the push rod 39 through the support column 37, so the support block 28 moves to both sides away from each other, and the support column 37 slides in the long groove 33, and the return spring 32 fixed on the support column 37 is also compressed, thereby providing space for the connection shell 42 to move in the sliding groove 26, avoiding the connection shell 42 from abutting against the support block 28. When the wheel 34 is engaged, the reset spring 32 will push the support column 37 to reset so that the support block 28 can continue to support the bottom end of the screw body 1. When one set of racks 50 is engaged with the gear 34, the other set of racks 50 will keep a certain distance from the gear 34 and will not engage with the gear 34. The two sets of racks 50 are connected together by a connecting plate 49, and the connecting plate 49 is connected to the connecting block 48. When the racks 50 move, the connecting block 48 will slide in the movable groove 51 and the width of the movable groove 51 is greater than the connecting block 48.

[0024] Further, the adjustment mechanism includes a through slot 43, the through slot 43 passes through the connecting shell 42, an extension plate 46 is slidably connected inside the through slot 43, the extension plate 46 is fixedly connected to both sides of the connecting block 48, both sides of the connecting block 48 are fixedly connected to second magnets 47, the inner wall of the connecting shell 42 is fixedly connected to two groups of first magnets 44, the second magnets 47 are located below the extension plate 46, one group of the second magnets 47 is attracted to one group of the first magnets 44, one group of the extension plates 46 is close to the inner wall of the sliding groove 26, and two groups of abutment blocks 61 are fixedly connected to the inner wall of the sliding groove 26; Through the structural design of the adjustment mechanism, the function of adjusting the positions of the two sets of racks 50 is achieved when the detection instrument 25 moves to the right for reset, so that one set of racks 50 is released from meshing with the gear 34 and the other set of racks 50 continues to mesh with the gear 34, so as to prevent the gear 34 from rotating in the opposite direction and causing the support block 28 to be unable to move normally to both sides, and ensure that the gear 34 will only rotate in the same direction during the movement of the detection instrument 25 to the left and right. During operation, after the instrument frame 40 is pushed to drive the detection instrument 25 to move to the maximum position on the left, it is necessary to move the detection instrument 25 to the right to reset it. When the detection instrument 25 moves to the maximum position on the left, a set of extension plates 46 fixed on the connecting block 48 will abut against one of the sets of abutment blocks 61, and one of the two sets of extension plates 46 will be accommodated in the connection shell 42, and a part of the other set of extension plates 46 will be located The outer side of the connecting shell 42 is connected so as to abut against the abutment block 61. The abutment block 61 will push the extension plate 46 to make the extension plate 46 move inside the connecting shell 42. Two groups of first magnets 44 and second magnets 47 are provided. When the detection instrument 25 moves to the left, one group of second magnets 47 is attracted to the first magnets 44 corresponding to the second magnets 47, and the other group of second magnets 47 is separated from the first magnets 44 corresponding to the second magnets 47 to ensure that the rack 50 can smoothly drive the gear 34 to rotate. When the position of the extension plate 46 moves, the extension plate 46 will push the connecting block 48 to slide on the mounting rod 45, and the connecting block 48 will drive the rack 50 to move forward, thereby adjusting the position of the rack 50, so as to ensure that only one group of racks 50 can mesh with the gear 34 when the detection instrument 25 moves to the right, thereby ensuring that the gear 34 will only rotate in the same direction during the left and right movement of the two groups of racks 50.

[0025] Further, the fixing mechanism includes an insertion rod 30, the insertion rod 30 is fixedly connected to the support block 28, the side of the insertion rod 30 away from the support block 28 is inserted into the interior of the fixed shell 52, the fixed shell 52 is provided with two groups, the fixed shell 52 is fixedly connected to the inner wall of the first shell 22, the top of the inner wall of the fixed shell 52 is fixedly connected with four groups of protrusions 53, two adjacent groups of the protrusions 53 are fixedly connected with a connecting frame 55 and two groups of connecting springs 54, the connecting frame 55 passes through the partition 57, the partition 57 is fixedly connected to the middle part of the movable baffle 56, the movable baffle 56 is provided with two groups, the side of the connecting spring 54 away from the protrusion 53 is in contact with the partition 57, and the outer shape of the movable baffle 56 is trapezoidal in design; Through the structural design of the fixing mechanism, the function of fixing the positions of the remaining support blocks 28 is realized when one pair of support blocks 28 moves to both sides, so as to ensure that the support block 28 supporting the bottom end of the screw body 1 will not continue to move at this time, and avoid the support effect of the support block 28 on the bottom end of the screw body 1 being poor due to the simultaneous movement of multiple groups of support blocks 28, thereby causing a large deviation in the detection data, thereby ensuring the support effect of the support block 28 on the bottom end of the screw body 1. During operation, when the detection instrument 25 moves to the support block 28 and moves the support block 28 to both sides, the plug rod 30 fixed on the group of support blocks 28 will also move to both sides and continue to be inserted into the fixed shell 5 2, thereby abutting against the movable baffle 56 and pushing one or two groups of movable baffles 56 in the fixed shell 52 to move. The fixed shell 52 is provided with holes corresponding to the insertion rods 30. The movable baffle 56 will block the remaining holes when moving, resulting in the remaining insertion rods 30 being unable to be inserted into the fixed shell 52, thereby ensuring that the positions of the remaining support blocks 28 cannot be moved. When the insertion rod 30 is no longer abutting against the movable baffle 56, the movable baffle 56 can be reset under the action of the connecting spring 54, and the connecting frame 55 penetrates the partition 57, so that the movable baffle 56 can move smoothly, and the spacing between the two adjacent groups of protrusions 53 is fixed to avoid the movable baffle 56 from moving too far.

[0026] Furthermore, an extension column 59 is fixedly connected to one side of the fixed shell 52 close to the insertion rod 30, and the insertion rod 30 is inserted inside the extension column 59; During operation, the extension column 59 is used to extend the contact length between the insertion rod 30 and the inner wall of the fixed shell 52, so as to provide support for the insertion rod 30 and guide the movement of the support block 28, thereby ensuring that the support block 28 can slide stably.

[0027] Furthermore, a gasket 58 is fixedly connected to the extension column 59, and the gasket 58 is made of rubber material; During operation, the gasket 58 is made of rubber material and is used for buffering between the extension column 59 and the support block 28 to prevent the support block 28 from abutting against the extension column 59 when the support block 28 moves to the maximum distance on both sides.

[0028] Furthermore, the return spring 32 is sleeved on the outside of the fixing rod 31, the fixing rod 31 passes through the support column 37, and both sides of the fixing rod 31 are fixedly connected to the inner wall of the long slot 33; During operation, the fixing rod 31 passes through the support column 37 to provide support and guidance to the support column 37 during its movement, thereby ensuring that the support column 37 can move stably without large shaking, and also reducing the pressure that the push rod 39 needs to bear.

[0029] Furthermore, the bottom end of the rack 50 contacts the support plate 60, the cross section of the support plate 60 is L-shaped, and the support plate 60 is fixedly connected to the inner wall of the second housing 24; During operation, the bottom end of the rack 50 contacts the support plate 60 , and the support plate 60 can provide support for the bottom end portion of the rack 50 to ensure the normal movement of the rack 50 and the normal meshing of the rack 50 and the gear 34 . Embodiment 2

[0030] See also Figure 6 and Figure 7 As shown, comparative example 1 is another embodiment of the present invention, the top end of the support block 28 is designed to be arc-shaped, and the top end of the support block 28 is rotatably connected to multiple groups of rolling columns 29, and the rolling columns 29 are in contact with the bottom end of the screw body 1; During operation, the top of the support block 28 is designed to be arc-shaped so as to better fit with the bottom of the screw body 1. Multiple groups of rolling columns 29 rotate on the support block 28 so as to reduce the friction resistance between the screw body 1 and the support block 28 during rotation.

[0031] The interior of the movable baffle 56 is hollowed out, and two groups of the movable baffles 56 are in contact with each other; During operation, the movable baffle 56 is hollowed out so that the insertion rod 30 can smoothly push the movable baffle 56 to move, and the two groups of movable baffles 56 are in contact with each other to ensure that after one group of movable baffles 56 is pushed, it can drive the other group of movable baffles 56 to move inside the fixed shell 52.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A swing detection device for automobile screw production, comprising a screw body (1), wherein the screw body (1) is fixedly connected to an output shaft of a motor (20), and the motor (20) is fixedly connected to a mounting plate (21), characterized in that: One side of the mounting plate (21) contacts the first housing (22); the bottom ends of the mounting plate (21) and the first housing (22) are both fixedly connected to the second housing (24); the bottom end of the second housing (24) is fixedly connected to a bottom plate (23); the top end of the first housing (22) is fixedly connected to two sets of fixing frames (41); an instrument frame (40) is slidably connected to the fixing frame (41); the top end of the instrument frame (40) is fixedly connected to a detection instrument (25); a supporting mechanism is provided at the bottom end of the screw rod body (1); the supporting mechanism is used to support the bottom end of the screw rod body (1) during the detection process of the screw rod body (1); an adjusting mechanism is provided at the bottom end of the instrument frame (40); the adjusting mechanism is used to adjust the position of the rack (50) when the detection instrument (25) is reset; and a fixing mechanism is provided inside the first housing (22); the fixing mechanism is used to fix the position of the support block (28).

2. The swing detection device for automobile screw rod production according to claim 1, characterized in that: The support mechanism comprises a plurality of groups of support blocks (28), the bottom end of the support block (28) is fixedly connected to a support column (37), the bottom end of the support column (37) is fixedly connected to a push rod (39), the push rod (39) is rotatably connected to a connecting rod (38), the connecting rod (38) is rotatably connected to the bottom end of a disk (36), the middle of the disk (36) is fixedly connected to a rotating shaft (35), the bottom end of the rotating shaft (35) is rotatably connected to a bottom plate (23), the top end of the rotating shaft (35) is fixedly connected to a gear (34), one side of the support column (37) is fixedly connected to a return spring (32), the return spring (32) is fixedly connected to the inner wall of the long slot (33), and the The long groove (33) is formed on the second housing (24); a sliding groove (26) is formed in the middle of the first housing (22); a connecting shell (42) is fixedly connected to the bottom end of the instrument frame (40); a mounting rod (45) is fixedly connected to the inner wall of the connecting shell (42); a connecting block (48) is slidably connected to the mounting rod (45); the bottom end of the connecting block (48) is fixedly connected to a connecting plate (49); two groups of racks (50) are fixedly connected to the bottom end of the connecting plate (49); one group of the racks (50) is close to one side of the gear (34); the connecting block (48) is slidably connected to a movable groove (51); and the movable groove (51) is formed on the second housing (24).

3. The swing detection device for automobile screw rod production according to claim 1, characterized in that: The adjusting mechanism comprises a through slot (43), wherein the through slot (43) passes through the connecting shell (42), an extension plate (46) is slidably connected inside the through slot (43), the extension plate (46) is fixedly connected to two sides of a connecting block (48), and second magnets (47) are fixedly connected to both sides of the connecting block (48), and two groups of first magnets (44) are fixedly connected to the inner wall of the connecting shell (42), the second magnets (47) are located below the extension plate (46), and one group of the second magnets (47) is attracted to one group of the first magnets (44), and one group of the extension plates (46) is close to the inner wall of the sliding slot (26), and two groups of abutment blocks (61) are fixedly connected to the inner wall of the sliding slot (26).

4. The swing detection device for automobile screw rod production according to claim 1, characterized in that: The fixing mechanism comprises an insertion rod (30), wherein the insertion rod (30) is fixedly connected to the support block (28), and a side of the insertion rod (30) away from the support block (28) is inserted into the interior of a fixed shell (52), and the fixed shell (52) is provided with two groups, wherein the fixed shell (52) is fixedly connected to the inner wall of the first outer shell (22), and the top end of the inner wall of the fixed shell (52) is fixedly connected with four groups of protrusions (53), and two adjacent groups of the protrusions (53) are fixedly connected with a connecting frame (55) and two groups of connecting springs (54), and the connecting frame (55) passes through a partition (57), and the partition (57) is fixedly connected to the middle part of a movable baffle (56), and the movable baffle (56) is provided with two groups, and a side of the connecting spring (54) away from the protrusion (53) contacts the partition (57), and the outer shape of the movable baffle (56) is designed to be trapezoidal.

5. The swing detection device for automobile screw rod production according to claim 4, characterized in that: An extension column (59) is fixedly connected to one side of the fixed shell (52) close to the insertion rod (30), and the insertion rod (30) is inserted into the interior of the extension column (59).

6. The swing detection device for automobile screw rod production according to claim 5, characterized in that: A gasket (58) is fixedly connected to the extension column (59), and the gasket (58) is made of rubber material.

7. The swing detection device for automobile screw rod production according to claim 2, characterized in that: The return spring (32) is sleeved on the outside of the fixing rod (31), the fixing rod (31) passes through the support column (37), and both sides of the fixing rod (31) are fixedly connected to the inner wall of the long slot (33).

8. The swing detection device for automobile screw rod production according to claim 7, characterized in that: The bottom end of the rack (50) contacts the support plate (60); the cross section of the support plate (60) is L-shaped; the support plate (60) is fixedly connected to the inner wall of the second housing (24).

9. The swing detection device for automobile screw rod production according to claim 2, characterized in that: The top end of the support block (28) is designed to be arc-shaped, and the top end of the support block (28) is rotatably connected to a plurality of groups of rolling columns (29), and the rolling columns (29) are in contact with the bottom end of the screw rod body (1).

10. The swing detection device for automobile screw rod production according to claim 4, characterized in that: The interior of the movable baffle (56) is hollowed out, and two groups of the movable baffles (56) are in contact with each other.

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