Dynamic balance detection device and detection method for transmission shaft of machining equipment

Abstract

The present invention relates to the technical field of transmission shaft detection, and specifically to a dynamic balance detection device and a detection method for a transmission shaft of a machining equipment, comprising: a base, a rotating disk is arranged on the base, and a plurality of abutment portions are arranged on the rotating disk at equidistant intervals in a circle; a pulling disk, coaxial and parallel to the rotating disk; an elastic driving mechanism, connecting the pulling disk and the abutment portions, the elastic driving mechanism comprising an elastic component and a guide component, the elastic component can pull the guide component to move so that the plurality of abutment portions can move toward the center of the rotating disk; a follower component, connected to the pulling disk, the follower component can change the interaction force between the abutment portions and the transmission shaft according to the rotation speed of the rotating disk; a positioning member, arranged on the base and connected to the follower component, the follower component can drive the positioning member to drive the transmission shaft to move toward the rotating disk when rotating, so as to improve the stability of the transmission shaft during the detection process.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission shaft detection, in particular to a dynamic balance detection device and a detection method for a transmission shaft of machining equipment. Background Art

[0002] The drive shaft is mainly used for power transmission and is widely used in vehicles and machine tools.

[0003] After the drive shaft is produced, its quality needs to be tested. The most important test is the dynamic balance test, especially for the drive shaft used in processing machine tools. The dynamic balance test result directly affects the processing accuracy of the processing machine tools.

[0004] Most of the existing transmission shaft dynamic balance detection uses a professional dynamic balance detection device, which consists of a mechanical transmission part and a data acquisition part. The mechanical transmission part drives the transmission shaft to rotate, and then the data acquisition part collects information to obtain the dynamic balance detection result of the transmission shaft, which greatly improves the detection speed and accuracy.

[0005] However, the existing dynamic balancing detection devices also have certain disadvantages, mainly in the clamping force. Since the drive shaft in the machine tool often has a variety of different rotational speeds, it is not possible to only perform dynamic balancing detection on the drive shaft at a single rotational speed during dynamic balancing detection. The clamping force of the dynamic balancing detection device is constant, so that at high rotational speeds, the drive shaft has a tendency to shake, swing and slowly separate from the clamping part. The clamping force of a single mode is insufficient or too large to suppress the shaking of the drive shaft, resulting in inaccurate detection results. Summary of the invention

[0006] The purpose of the present invention is to provide a dynamic balance detection device and a detection method for a transmission shaft of a machining equipment to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The dynamic balance detection device of the transmission shaft of machining equipment includes:

[0009] A base, wherein a rotating disk is arranged on the base, and a plurality of abutting portions are arranged on the rotating disk at equal intervals in a circumference;

[0010] A pulling disk, coaxial with and parallel to the rotating disk;

[0011] An elastic driving mechanism is connected to the pulling disk and the abutment part, and the elastic driving mechanism includes an elastic component and a guide component, and the elastic component can pull the guide component to move so that the plurality of abutment parts can move toward the center of the rotating disk;

[0012] A follower assembly connected to the pulling disk, wherein the follower assembly can change the interaction force between the abutment portion and the transmission shaft according to the rotation speed of the rotating disk;

[0013] The positioning member is arranged on the base and connected to the follower assembly. The follower assembly can drive the positioning member to drive the transmission shaft to move toward the rotating disk when rotating.

[0014] As a further solution of the present invention: the guide assembly comprises a plurality of No. 1 slide grooves arranged along the radial direction of the rotating disk, a No. 1 slider is slidably installed in the No. 1 slide groove, the interior of the No. 1 slider is a hollow structure, a connecting rod is slidably installed in the No. 1 slider, and the abutting portion is arranged on the connecting rod;

[0015] One end of the connecting rod away from the abutting portion is connected to the rotating disk via a guide structure.

[0016] As a further solution of the present invention: the guide structure includes a pulley rotatably mounted on the connecting rod and a guide plate arranged on the rotating disk, the guide plate is provided with an inclined groove, and the pulley can roll in the inclined groove.

[0017] As a further solution of the present invention: the elastic component comprises an electric telescopic rod fixedly mounted on the pulling disk, the action end of the electric telescopic rod is connected to a connecting shaft, the connecting shaft is slidably fitted with a hysteresis sleeve arranged on the rotating disk, a No. 1 cylindrical spring is arranged in the hysteresis sleeve, one end of the No. 1 cylindrical spring is connected to the inner wall of the hysteresis sleeve, and the other end is connected to the connecting shaft;

[0018] A plurality of groups of No. 2 slide grooves are equidistantly arranged on the pulling disk, a No. 2 slider is slidably installed in the No. 2 slide groove, and the No. 2 slider is fixedly connected to the connecting rod.

[0019] As a further solution of the present invention: the follower assembly includes a connecting shaft coaxially fixedly connected to the rotating shaft of the rotating disk, and a plurality of rotating rods are circumferentially equidistantly arranged on the connecting shaft, and a No. 3 slide groove is formed on the rotating rod along its length direction, and a counterweight slider is slidably installed in the No. 3 slide groove, and a hinged rod is rotatably installed on the counterweight slider, and the end of the hinged rod away from the counterweight slider is rotatably connected to the pulling disk.

[0020] As a further solution of the present invention: the positioning member is in a cylindrical shape, an inner conical surface is formed inside the positioning member, and the opening of the positioning member faces the rotating disk.

[0021] As a further solution of the present invention: the positioning member is connected to a composite component arranged on the base;

[0022] The composite assembly comprises a bracket arranged on the base, a sliding connection portion is formed on the bracket, and the sliding connection portion is slidably connected to a base arranged on the base;

[0023] The composite assembly also includes a transverse frame slidably mounted in the bracket, a vertical shaft is arranged in the transverse frame, a sliding member is slidably mounted on the vertical shaft, the positioning member is slidably connected to the sliding member via a No. 3 connecting shaft penetrating the sliding member, a No. 4 columnar spring is sleeved on the No. 3 connecting shaft, one end of the No. 4 columnar spring is connected to the positioning member, and the other end is connected to the sliding member;

[0024] Two No. 2 cylindrical springs are symmetrically arranged on the vertical shaft, one end of the No. 2 cylindrical spring is connected to the sliding member, and the other end is connected to the inner wall of the transverse frame;

[0025] The transverse frame passes through the bracket and is connected with a connecting sleeve, which is slidably connected to a transverse axis arranged on the bracket. Two groups of No. 3 columnar springs are sleeved on the transverse axis, one end of the No. 3 columnar spring is connected to the end of the transverse axis, and the other end is connected to the connecting sleeve.

[0026] As a further solution of the present invention: the pulling disc is connected with a connecting ring coaxial therewith, the connecting ring is sleeved with a sleeve ring rotatably connected therewith, and the sleeve ring is connected with a counterweight block via a connecting plate;

[0027] The connecting plate and the bracket are provided with a connecting seat, and the pulling rod arranged between the two is spherically connected with the connecting seat.

[0028] A method for detecting a transmission shaft of machining equipment using the dynamic balancing detection device comprises the following steps:

[0029] Step 1: Place the transmission shaft to be tested between the rotating disk and the positioning member, and start the elastic driving mechanism to clamp the transmission shaft to be tested;

[0030] Step 2: Control the rotating disk to rotate, driving the transmission shaft to be tested to rotate;

[0031] Step 3: When the rotation speed of the rotating disk increases, the follower assembly can make the abutting portion have a tendency to move further toward the transmission shaft to be detected;

[0032] Step 4: When the rotation speed of the rotating disk increases, the follower assembly will also drive the positioning member to rotate toward the rotating disk;

[0033] Step 5: After the inspection is completed, remove the drive shaft and complete the inspection.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] When the telescopic end of the electric telescopic rod moves, the pulling disk and the rotating disk can move away from each other, so that the multiple connecting rods move closer to each other, thereby clamping the transmission shaft, and under the elastic support of the No. 1 column spring, the transmission shaft can be pre-clamped. The pre-clamping force matches the minimum speed of the dynamic balance detection of the transmission shaft, which can ensure the clamping force of the transmission shaft and prevent the clamping force from being too large to suppress the vibration of the transmission shaft, thereby improving the detection accuracy;

[0036] As the speed of the transmission shaft increases, the clamping force provided by the combination of the centrifugal force and the No. 1 cylindrical spring will also increase. At this time, as the speed increases, the vibration frequency and amplitude of the transmission shaft will also increase accordingly, so that at the corresponding speed, the clamping force can match the vibration of the transmission shaft, further preventing the transmission shaft from separating from the abutment when the speed of the transmission shaft is low, and preventing the vibration of the transmission shaft from being suppressed by excessive clamping force;

[0037] At different rotation speeds of the transmission shaft, the positioning member can follow the movement, thereby ensuring the stability of the transmission shaft at different rotation speeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The present invention is a structural schematic diagram of an embodiment of a dynamic balance detection device for a transmission shaft of machining equipment.

[0039] Figure 2 This is a structural schematic diagram from another angle of an embodiment of a dynamic balance detection device for a transmission shaft of machining equipment.

[0040] Figure 3 The present invention is a schematic structural diagram of a pulling disk, an elastic driving mechanism and a follower assembly in one embodiment of a dynamic balance detection device for a transmission shaft of machining equipment.

[0041] Figure 4 This is a structural exploded diagram of a guide assembly in one embodiment of a dynamic balancing detection device for a transmission shaft of machining equipment.

[0042] Figure 5 This is a structural diagram of the connection relationship between the pulling disk and the rotating disk in one embodiment of a dynamic balance detection device for a transmission shaft of a machining equipment.

[0043] Figure 6 The present invention is a schematic structural diagram of a follower assembly in one embodiment of a dynamic balance detection device for a transmission shaft of machining equipment.

[0044] Figure 7 This is a structural exploded diagram of a composite component in one embodiment of a dynamic balancing detection device for a transmission shaft of machining equipment.

[0045] Figure 8 The present invention is a schematic structural diagram of a bracket and a connecting plate in one embodiment of a dynamic balance detection device for a transmission shaft of machining equipment.

[0046] In the figure: 1, base; 2, side plate; 3, driving device; 4, No. 1 connecting shaft; 5, rotating disk; 501, No. 1 slide; 6, No. 1 slider; 7, connecting rod; 701, abutment portion; 8, pulley; 9, guide plate; 901, inclined groove; 10, pulling disk; 1001, No. 2 slide; 11, No. 2 slider; 12, electric telescopic rod; 13, No. 2 connecting shaft; 14, No. 1 cylindrical spring; 15, hysteresis sleeve; 16, hinged rod; 17, rotating rod; 1701 , No. 3 slide groove; 18, counterweight slider; 19, base; 20, bracket; 2001, sliding connection; 21, transverse frame; 22, vertical axis; 23, sliding member; 24, No. 2 cylindrical spring; 25, connecting sleeve; 26, transverse axis; 27, No. 3 cylindrical spring; 28, No. 4 cylindrical spring; 29, No. 3 connecting shaft; 30, positioning member; 3001, inner cone; 31, pulling rod; 32, connecting plate; 3201, counterweight block; 3202, collar; 33, connecting ring. DETAILED DESCRIPTION

[0047] 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.

[0048] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0049] See also Figure 1 to Figure 8 In an embodiment of the present invention, a dynamic balance detection device for a transmission shaft of machining equipment includes: a base 1, a pulling disk 10, an elastic drive mechanism, a follower assembly, and a positioning member 30, so that as the rotation speed of the transmission shaft increases, the clamping force provided by the centrifugal force and the No. 1 cylindrical spring 14 will also increase. At this time, as the rotation speed increases, the vibration frequency and amplitude of the transmission shaft will also increase accordingly, so that at the corresponding rotation speed, the clamping force can match the vibration of the transmission shaft, and further prevent the transmission shaft from separating from the abutment portion 701 when the transmission shaft rotation speed is low, thereby avoiding excessive clamping force from suppressing the vibration of the transmission shaft.

[0050] Specifically, the base 1 is provided with a rotating disk 5, and the rotating disk 5 is provided with a plurality of abutting portions 701 at equal intervals in a circumference. Specifically, the base 1 is provided with a side plate 2, and a driving device 3 is fixedly installed on the side plate 2;

[0051] The pulling disk 10 is coaxial and parallel to the rotating disk 5;

[0052] The elastic driving mechanism connects the pulling disk 10 and the abutting portion 701, and the elastic driving mechanism includes an elastic component and a guide component, and the elastic component can pull the guide component to move so that the plurality of abutting portions 701 can move toward the center of the rotating disk 5;

[0053] The guide assembly includes a plurality of first slide grooves 501 arranged along the radial direction of the rotating disk 5, a first slider 6 is slidably installed in the first slide groove 501, the interior of the first slider 6 is a hollow structure, and a connecting rod 7 is slidably installed in the first slider 6, and the abutment portion 701 is arranged on the connecting rod 7;

[0054] One end of the connecting rod 7 away from the abutment portion 701 is connected to the rotating disk 5 via a guide structure, and the guide structure includes a pulley 8 rotatably mounted on the connecting rod 7 and a guide plate 9 disposed on the rotating disk 5, and an inclined groove 901 is disposed on the guide plate 9, and the pulley 8 can roll in the inclined groove 901;

[0055] The elastic component includes an electric telescopic rod 12 fixedly mounted on the pulling disk 10, the action end of the electric telescopic rod 12 is connected to a second connecting shaft 13, the second connecting shaft 13 is slidably fitted with a hysteresis sleeve 15 arranged on the rotating disk 5, a first cylindrical spring 14 is arranged in the hysteresis sleeve 15, one end of the first cylindrical spring 14 is connected to the inner wall of the hysteresis sleeve 15, and the other end is connected to the second connecting shaft 13;

[0056] The pulling disk 10 is provided with a plurality of groups of No. 2 slide grooves 1001 at equal intervals, and a No. 2 slider 11 is slidably installed in the No. 2 slide groove 1001 , and the No. 2 slider 11 is fixedly connected to the connecting rod 7 .

[0057] When in use, the machined transmission shaft (hereinafter referred to as the transmission shaft) is placed between the multiple abutment parts 701, and the action end of the electric telescopic rod 12 is controlled to move toward the rotating disk 5. At this time, the distance between the rotating disk 5 and the pulling disk 10 will increase, so that the second slider 11 can drive the connecting rod 7 to slide relative to the rotating disk 5. At the same time, the pulley 8 on the connecting rod 7 will slide in the inclined groove 901, thereby driving the connecting rod 7 and the first slider 6 to move along the length direction of the first slide groove 501 toward the rotation center of the rotating disk 5, so that the multiple abutment parts 701 can move toward the transmission shaft to clamp the transmission shaft.

[0058] Among them, when the action end of the electric telescopic rod 12 moves toward the rotating disk 5, and when the abutment part 701 abuts against the transmission shaft, the action end of the electric telescopic rod 12 can also move toward the rotating disk 5. At this time, the No. 1 columnar spring 14 can be compressed, and the elastic force provided by the No. 1 columnar spring 14 can achieve pre-clamping of the transmission shaft.

[0059] It should be noted that when the pulling disk 10 moves away from the rotating disk 5, the positioning member 30 can also move toward the rotating disk 5 and abut against the other end of the transmission shaft, thereby preventing the transmission shaft from being separated from the abutment portion 701 when the pulling disk 10 drives the transmission shaft to rotate.

[0060] Through the above-mentioned arrangement, when the telescopic end of the electric telescopic rod 12 moves, the pulling disk 10 and the rotating disk 5 can move away from each other, so that the multiple connecting rods 7 can move closer to each other, thereby clamping the transmission shaft. Under the elastic support of the No. 1 columnar spring 14, the transmission shaft can be pre-clamped. The pre-clamping force matches the minimum rotational speed of the dynamic balance detection of the transmission shaft, which can ensure the clamping force of the transmission shaft and prevent the clamping force from being too large to suppress the vibration of the transmission shaft, thereby improving the detection accuracy.

[0061] See also Figure 3 , Figure 6 , the follower assembly is connected to the pulling disk 10, and the follower assembly can change the interaction force between the abutment portion 701 and the transmission shaft according to the rotation speed of the rotating disk 5;

[0062] The follower assembly includes a No. 1 connecting shaft 4 which is coaxially fixedly connected to the rotating shaft of the rotating disk 5. The No. 1 connecting shaft 4 is connected to the output shaft of the driving device 3. In a natural state, the No. 1 connecting shaft 4 can maintain a vertical state with the side plate 2, and a plurality of rotating rods 17 are circumferentially equidistantly arranged on the No. 1 connecting shaft 4. The rotating rod 17 is formed with a No. 3 slide groove 1701 along its length direction. A counterweight slider 18 is slidably installed in the No. 3 slide groove 1701. A hinged rod 16 is rotatably installed on the counterweight slider 18. The end of the hinged rod 16 away from the counterweight slider 18 is rotatably connected to the pulling disk 10.

[0063] During the detection process, the speed of the transmission shaft will be in different working conditions to simulate the shaking of the transmission shaft at different speeds. Specifically, when the electric telescopic rod 12 moves and uses the elastic force of the No. 1 column spring 14 to pre-clamp the transmission shaft, the pulling disk 10 will also drive the counterweight slider 18 to move away from the No. 1 connecting shaft 4 along the length direction of the No. 3 slide groove 1701 through the hinge rod 16, and after the abutment 701 completes the clamping of the transmission shaft, the counterweight slider 18 is in the non-end position of the No. 3 slide groove 1701. At this time, under the detection conditions of different speeds of the transmission shaft, when the speed of the transmission shaft changes, the counterweight slider 18 The rotation speed of the circular motion of the counterweight slider 18 will also change accordingly. At the same time, the centrifugal force exerted on the counterweight slider 18 will also change, so that the counterweight slider 18 has a tendency to move further away from the No. 1 connecting shaft 4 along the length direction of the No. 3 slide groove 1701. Under this trend, the pulling disk 10 can have a tendency to move away from the rotating disk 5 and act on the connecting rod 7, so that the multiple connecting rods 7 have a tendency to move closer to each other. That is, when the rotation speed of the transmission shaft increases, the centrifugal force cooperates with the No. 1 column spring 14 to achieve follow-up adjustment of the clamping force, thereby ensuring the clamping stability of the transmission shaft under different rotation speeds.

[0064] Through the above arrangement, as the rotation speed of the transmission shaft increases, the clamping force provided by the cooperation of the centrifugal force and the No. 1 cylindrical spring 14 will also increase. At this time, as the rotation speed increases, the vibration frequency and amplitude of the transmission shaft will also increase accordingly, so that at the corresponding rotation speed, the clamping force can match the vibration of the transmission shaft, and further prevent the transmission shaft from separating from the abutment part 701 when the transmission shaft rotation speed is low, thereby avoiding the vibration of the transmission shaft from being suppressed by excessive clamping force.

[0065] See also Figure 2 , Figure 3 , Figure 7 , Figure 8 The positioning member 30 is arranged on the base 1 and connected to the follower assembly. The follower assembly can drive the positioning member 30 to drive the transmission shaft to move toward the rotating disk 5 when rotating. The positioning member 30 is cylindrical and has an inner conical surface 3001 formed therein, so that when the transmission shaft is placed in the positioning member 30, the positioning member 30 can position it, and the opening of the positioning member 30 faces the rotating disk 5;

[0066] The positioning member 30 is rotatably connected to the composite component arranged on the base 1;

[0067] The composite assembly includes a bracket 20 disposed on the base 1, a sliding connection portion 2001 is formed on the bracket 20, and the sliding connection portion 2001 is slidably connected to a base 19 disposed on the base 1;

[0068] The composite assembly also includes a transverse frame 21 slidably mounted in the bracket 20, a vertical shaft 22 is arranged in the transverse frame 21, a sliding member 23 is slidably mounted on the vertical shaft 22, the positioning member 30 is slidably connected to the sliding member 23 via a No. 3 connecting shaft 29 penetrating the sliding member 23, a No. 4 columnar spring 28 is sleeved on the No. 3 connecting shaft 29, one end of the No. 4 columnar spring 28 is connected to the positioning member 30, and the other end is connected to the sliding member 23;

[0069] Two No. 2 cylindrical springs 24 are symmetrically arranged on the vertical shaft 22, one end of the No. 2 cylindrical spring 24 is connected to the sliding member 23, and the other end is connected to the inner wall of the transverse frame 21;

[0070] The transverse frame 21 passes through the bracket 20 and is connected with a connecting sleeve 25, and the connecting sleeve 25 is slidably connected with a transverse shaft 26 provided on the bracket 20, and two groups of No. 3 columnar springs 27 are sleeved on the transverse shaft 26, and one end of the No. 3 columnar spring 27 is connected to the end of the transverse shaft 26, and the other end is connected to the connecting sleeve 25;

[0071] The pulling disk 10 is connected with a connecting ring 33 coaxial therewith, the connecting ring 33 is sleeved with a sleeve ring 3202 rotatably connected therewith, and the sleeve ring 3202 is connected with a counterweight block 3201 via a connecting plate 32;

[0072] The connecting plate 32 and the bracket 20 are provided with a connecting seat, and the pulling rod 31 arranged therebetween is spherically connected to the connecting seat.

[0073] When the transmission shaft is placed, one end of the transmission shaft is in the positioning member 30, and when the pulling disk 10 moves away from the rotating disk 5 and the abutment parts 701 approach each other and clamp the transmission shaft, the collar 3202, the connecting ring 33, and the pulling rod 31 will also drive the bracket 20 to move toward the transmission shaft, so that the positioning member 30 can abut against one end of the transmission shaft, so that one end of the transmission shaft is in an abutment state, effectively preventing the transmission shaft from swinging due to vibration and separating from the abutment part 701.

[0074] Among them, in the initial state, when the transmission shaft is loaded, the transmission shaft can maintain a vertical state with the bracket 20, that is, the elastic force provided by the two No. 2 columnar springs 24 at the bottom in the initial state just offsets the gravity of the transmission shaft.

[0075] When the rotation speed of the transmission shaft increases, the pulling disk 10 will move further away from the rotating disk 5. At this time, the connecting plate 32 can pull the bracket 20 further toward the transmission shaft through the pulling rod 31, thereby increasing the abutment force on one end of the transmission shaft. That is, at different rotation speeds, the positioning member 30 can generate a matching abutment force, thereby ensuring the stability of the transmission shaft in the transmission state.

[0076] It is worth noting that when the transmission shaft vibrates, the connecting plate 32 will theoretically follow the vibration, causing a slight change in the position of the bracket 20. However, due to the presence of the No. 4 column spring 28, the positioning member 30 can maintain the abutment state with the transmission shaft.

[0077] Furthermore, four groups of distance sensors (not shown in the figure) are arranged on the sliding member 23. When the transmission shaft shakes, one end thereof can produce a certain horizontal displacement and vertical displacement. At this time, the four groups of distance sensors can detect the above displacements, thereby determining the shaking condition of the transmission shaft.

[0078] Through the above arrangement, the positioning member 30 can follow the movement at different rotation speeds of the transmission shaft, thereby ensuring the stability of the transmission shaft at different rotation speeds.

[0079] As an embodiment of the present invention, a method for detecting a transmission shaft of a machining equipment using the dynamic balancing detection device is also proposed, comprising the following steps:

[0080] Step 1: Place the transmission shaft to be tested between the rotating disk 5 and the positioning member 30, and start the elastic driving mechanism to clamp the transmission shaft to be tested;

[0081] Step 2: Control the rotating disk 5 to rotate, driving the transmission shaft to be detected to rotate;

[0082] Step 3: When the rotation speed of the rotating disk 5 increases, the follower assembly can make the abutting portion 701 have a tendency to move further toward the transmission shaft to be detected;

[0083] Step 4: When the rotation speed of the rotating disk 5 increases, the follower assembly will also drive the positioning member 30 to rotate toward the rotating disk 5;

[0084] Step 5: After the inspection is completed, remove the drive shaft and complete the inspection.

[0085] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0086] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dynamic balance detection device for a transmission shaft of a machining equipment, characterized in that: include: A base (1), wherein a rotating disk (5) is arranged on the base (1), and a plurality of abutment portions (701) are arranged on the rotating disk (5) at equal intervals in a circumference; A pulling disk (10) coaxial with and parallel to the rotating disk (5); an elastic driving mechanism, connecting the pulling disk (10) and the abutment portion (701), the elastic driving mechanism comprising an elastic component and a guide component, the elastic component being capable of pulling the guide component to move so that the plurality of abutment portions (701) can move toward the center of the rotating disk (5); A follower assembly connected to the pulling disk (10), the follower assembly being capable of changing the interaction force between the abutment portion (701) and the transmission shaft according to the rotation speed of the rotating disk (5); A positioning member (30) is arranged on the base (1) and connected to the follower assembly, and the follower assembly can drive the positioning member (30) to drive the transmission shaft to move toward the rotating disk (5) when rotating; The guide assembly comprises a plurality of No. 1 slide grooves (501) arranged along the radial direction of the rotating disk (5), a No. 1 slider (6) being slidably mounted in the No. 1 slide grooves (501), the interior of the No. 1 slider (6) being a hollow structure, and a connecting rod (7) being slidably mounted in the No. 1 slider (6), and the abutting portion (701) being arranged on the connecting rod (7); An end of the connecting rod (7) away from the abutting portion (701) is connected to the rotating disk (5) via a guide structure; The elastic component comprises an electric telescopic rod (12) fixedly mounted on the pulling disk (10); the action end of the electric telescopic rod (12) is connected to a connecting shaft (13); the connecting shaft (13) is slidably fitted with a hysteresis sleeve (15) arranged on the rotating disk (5); a first columnar spring (14) is arranged in the hysteresis sleeve (15); one end of the first columnar spring (14) is connected to the inner wall of the hysteresis sleeve (15), and the other end is connected to the connecting shaft (13); The pulling disk (10) is provided with a plurality of groups of No. 2 slide grooves (1001) at equal intervals, and a No. 2 slider (11) is slidably mounted in the No. 2 slide groove (1001), and the No. 2 slider (11) is fixedly connected to the connecting rod (7).

2. The dynamic balance detection device for the transmission shaft of machining equipment according to claim 1, characterized in that: The guide structure comprises a pulley (8) rotatably mounted on the connecting rod (7) and a guide plate (9) arranged on the rotating disk (5); an inclined groove (901) is arranged on the guide plate (9), and the pulley (8) can roll in the inclined groove (901).

3. The dynamic balance detection device for the transmission shaft of machining equipment according to claim 1, characterized in that: The follower assembly comprises a connecting shaft (4) coaxially fixedly connected to the rotating shaft of the rotating disk (5); a plurality of rotating rods (17) are circumferentially equidistantly arranged on the connecting shaft (4); a third slide groove (1701) is formed on the rotating rod (17) along its length direction; a counterweight slider (18) is slidably mounted in the third slide groove (1701); a hinged rod (16) is rotatably mounted on the counterweight slider (18); and one end of the hinged rod (16) away from the counterweight slider (18) is rotatably connected to the pulling disk (10).

4. The dynamic balance detection device for the transmission shaft of machining equipment according to claim 1, characterized in that: The positioning member (30) is cylindrical in shape, an inner conical surface (3001) is formed inside the positioning member (30), and the opening of the positioning member (30) faces the rotating disk (5).

5. The dynamic balance detection device for the transmission shaft of machining equipment according to claim 1, characterized in that: The positioning member (30) is connected to a composite component arranged on the base (1); The composite component comprises a bracket (20) arranged on the base (1), a sliding connection portion (2001) being formed on the bracket (20), and the sliding connection portion (2001) being slidably connected to a base (19) arranged on the base (1); The composite assembly further comprises a transverse frame (21) slidably mounted in the bracket (20), a vertical shaft (22) being arranged in the transverse frame (21), a sliding member (23) being slidably mounted on the vertical shaft (22), the positioning member (30) being slidably connected to the sliding member (23) via a No. 3 connecting shaft (29) penetrating the sliding member (23), a No. 4 columnar spring (28) being sleeved on the No. 3 connecting shaft (29), one end of the No. 4 columnar spring (28) being connected to the positioning member (30), and the other end being connected to the sliding member (23); Two No. 2 cylindrical springs (24) are symmetrically arranged on the vertical shaft (22), one end of the No. 2 cylindrical spring (24) is connected to the sliding member (23), and the other end is connected to the inner wall of the transverse frame (21); The transverse frame (21) passes through the bracket (20) and is connected to a connecting sleeve (25). The connecting sleeve (25) is slidably connected to a transverse shaft (26) provided on the bracket (20). Two groups of No. 3 columnar springs (27) are sleeved on the transverse shaft (26). One end of the No. 3 columnar spring (27) is connected to an end of the transverse shaft (26), and the other end is connected to the connecting sleeve (25).

6. The dynamic balance detection device for the transmission shaft of machining equipment according to claim 5, characterized in that: The pulling disk (10) is connected to a connecting ring (33) coaxial therewith, the connecting ring (33) is sleeved with a sleeve ring (3202) rotatably connected therewith, and the sleeve ring (3202) is connected to a counterweight block (3201) via a connecting plate (32); A connecting seat is provided on the connecting plate (32) and the bracket (20), and a pulling rod (31) provided between the two is spherically connected to the connecting seat.

7. A method for detecting a transmission shaft of a machining equipment using the dynamic balancing detection device as claimed in claim 1, characterized in that: The following steps are involved: Step 1: placing the transmission shaft to be tested between the rotating disk (5) and the positioning member (30), and starting the elastic driving mechanism to clamp the transmission shaft to be tested; Step 2: Control the rotating disk (5) to rotate, thereby driving the transmission shaft to be tested to rotate; Step three: when the rotation speed of the rotating disk (5) increases, the follower assembly can cause the abutment portion (701) to have a tendency to move further toward the transmission shaft to be detected; Step 4: When the rotation speed of the rotating disk (5) increases, the follower assembly will also drive the positioning member (30) to rotate toward the rotating disk (5); Step 5: After the inspection is completed, remove the drive shaft and complete the inspection.

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