Balancing machine with floating jacking mechanism

Abstract

The utility model relates to the technical field of balancing machines, in particular to a balancing machine with a floating jacking mechanism, which comprises a balancing machine body and the floating jacking mechanism fixedly arranged in the balancing machine body. The balancing machine body comprises a shell, a clamping assembly, a tensioning assembly, a driving assembly and a main shaft. The clamping assembly is rotationally arranged on the top wall of the shell, the main shaft is fixedly connected with the clamping assembly, and a main shaft limiting piece is coaxially and fixedly arranged at the end, away from the clamping assembly, of the main shaft; a workpiece to be subjected to balance detection is arranged in an inner cavity of the clamping assembly, and the tensioning assembly is coaxially arranged in an inner cavity of the main shaft. The driving assembly is used for driving the spindle to rotate; the floating jacking mechanism is fixedly connected with the inner wall of the shell, and the floating jacking mechanism is arranged below the tensioning assembly. According to the floating jacking mechanism, when the air cylinder jacks the tensioning assembly, the limiting fastener abuts against the main shaft limiting piece, the situation that the tensioning assembly drives the main shaft to ascend while ascending, and consequently the main shaft and the shell are impacted is avoided, and the service life of the balancing machine is prolonged conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of balancing machines, and in particular to a balancing machine with a floating lifting mechanism. Background Art

[0002] In the field of machinery, when processing some rotating workpieces, it is often necessary to use dynamic balancing detection methods to counterweight the workpiece so that the workpiece can reach a balanced state when rotating at high speed, thereby improving the stability and efficiency of equipment operation.

[0003] When performing dynamic balancing test on a workpiece, the workpiece needs to be clamped and fixed on a balancing machine. The balancing machine rotates, driving the workpiece to rotate synchronously. During the rotation of the workpiece, a special instrument is used to measure the unbalanced phase of the workpiece, and the workpiece is weighted according to the test results to achieve a balanced effect on the workpiece.

[0004] The existing balancing machine is provided with a driving motor and a main shaft inside the shell. The main shaft passes through the shell and is fixedly connected to a receiving plate. A limit sleeve is coaxially fixedly provided on the receiving plate. An elastic chuck is provided in the limit sleeve. The inner cavity of the elastic chuck clamps the workpiece. The bottom of the elastic chuck is fixedly connected to a pull rod. The pull rod vertically passes through the shell and extends into the inner cavity of the main shaft. The bottom end of the pull rod is threadedly connected to a limit nut. A disc spring is circumferentially wound around the side wall of the pull rod. One end of the disc spring abuts against the limit nut, and the other end abuts against the bottom end face of the main shaft. The disc spring is compressed between the limit nut and the end face of the main shaft. A cylinder is provided below the pull rod.

[0005] When performing dynamic balancing test on the workpiece, first start the cylinder, so that the cylinder pushes the pull rod to rise, the disc spring continues to contract, so that the pull rod drives the elastic chuck to rise, and the elastic chuck is loosened in the limit sleeve, and then the workpiece is placed vertically in the elastic chuck to ensure that the workpiece and the elastic chuck are coaxially arranged, and then the cylinder is reset, and the restoring force of the disc spring makes the limit nut and the main shaft move away from each other, and the limit nut pulls the pull rod to move downward, so that the pull rod pulls the elastic chuck to contract in the limit sleeve, and the elastic chuck is pressed against the inner wall of the limit sleeve, so that the workpiece in the elastic chuck is stably clamped; finally, start the driving motor, and the driving motor drives the spindle to rotate through the belt transmission, and the spindle drives the receiving plate to rotate, so that the limit sleeve set on the receiving plate drives the elastic chuck and the workpiece to rotate synchronously, and then the instrument is used to perform dynamic balancing test on the rotating workpiece.

[0006] When the cylinder lifts the pull rod upward, since the pull rod is fixedly connected to the elastic chuck, the elastic chuck is tightly abutted against the limit sleeve, the limit sleeve is fixedly connected to the receiving plate, and the receiving plate is fixedly connected to the main shaft, the pull rod can easily cause the main shaft to be misaligned when it moves, causing impact between the main shaft and the housing, thereby affecting the service life of the balancing machine. Utility Model Content

[0007] In order to increase the service life of a balancing machine, the present application provides a balancing machine with a floating jacking mechanism.

[0008] The present application provides a balancing machine with a floating lifting mechanism, which adopts the following technical solution:

[0009] A balancing machine with a floating lifting mechanism comprises a balancing machine body and a floating lifting mechanism fixedly arranged inside the balancing machine body; the balancing machine body comprises a housing, a clamping assembly, a tensioning assembly, a driving assembly and a main shaft;

[0010] The clamping assembly is rotatably arranged on the top wall of the shell, the spindle is fixedly connected to the clamping assembly, the spindle is located in the inner cavity of the shell, and the spindle passes through the top wall of the shell, and a spindle stopper is coaxially fixedly arranged at one end of the spindle away from the clamping assembly; a workpiece to be balanced and detected is arranged in the inner cavity of the clamping assembly, the tensioning assembly is coaxially arranged in the inner cavity of the spindle, and one end of the tensioning assembly is fixedly connected to the clamping assembly, and the other end abuts against the end of the spindle away from the clamping assembly; the driving assembly is fixedly installed inside the shell, and the driving assembly is used to drive the spindle to rotate;

[0011] The floating lifting mechanism is fixedly connected to the inner wall of the shell, and the floating lifting mechanism is arranged below the tensioning assembly; the floating lifting mechanism includes a support, a support member, a cylinder and a plurality of limit fasteners, the support is fixedly connected to the side wall of the shell, the support member is fixedly arranged on the top wall of the support, the cylinder is fixedly connected to the support member, and the plurality of limit fasteners are fixedly arranged on the top wall of the support member.

[0012] By adopting the above technical scheme, when it is necessary to perform a balancing test on the workpiece, the cylinder is adjusted so that the cylinder lifts the tensioning assembly, the tensioning assembly slides in the main shaft, the tensioning assembly drives the clamping assembly to rise, and the clamping assembly is released at this time, and the workpiece is placed in the clamping assembly, the cylinder is closed, the cylinder retracts, the tensioning assembly resets, and moves downward in the main shaft, the tensioning assembly drives the clamping assembly to descend, so that the clamping assembly clamps the workpiece, and then the driving assembly drives the main shaft to rotate, and the workpiece is balanced. The floating lifting mechanism is set, and when the cylinder lifts the tensioning assembly, the limit fastener abuts against the main shaft limiter, thereby avoiding the tensioning assembly driving the main shaft to rise while rising, causing the main shaft to be misaligned, and there is an impact between the main shaft and the housing, thereby facilitating the improvement of the service life of the balancing machine.

[0013] In a specific possible implementation scheme, the support member includes a lower support plate, an upper support plate and four groups of sliding members; the lower support plate is fixedly connected to the top wall of the support, the four groups of sliding members are fixedly arranged on the top wall of the lower support plate, the upper support plate is arranged on the top of the four groups of sliding members, the cylinder is fixedly connected to the bottom wall of the upper support plate, and the limit fastener is fixedly arranged on the top wall of the upper support plate;

[0014] The sliding member includes a sliding sleeve, a sliding rod and a spring. The sliding sleeve is fixedly connected to the top wall of the lower support plate. The sliding rod is inserted into the inner cavity of the sliding sleeve and can slide along the inner cavity of the sliding sleeve. One end of the sliding rod extending out of the sliding sleeve is fixedly connected to the upper support plate. The spring is coaxially wound around the circumferential side wall of the sliding rod, and the spring is located between the sliding sleeve and the upper support plate.

[0015] By adopting the above technical scheme, a sliding member is set, and a spring abuts between the upper support plate and the sliding sleeve, so that the spring supports the sliding rod, and the sliding rod supports the upper support plate and the cylinder, so that the cylinder is suspended between the tensioning assembly and the lower support plate. When the cylinder is lifted, the cylinder pushes the tensioning assembly to rise, and the cylinder is subjected to a downward reaction force that pushes the cylinder as a whole downward. The cylinder is fixedly connected to the upper support plate, so that the upper support plate descends. At this time, the sliding rod slides downward in the sliding sleeve, and the limit fastener moves downward with the upper support plate. When the limit fastener moves downward to a certain distance, the limit fastener abuts against the main shaft limit member, so as to avoid the main shaft from following the upward movement of the tensioning assembly and causing dislocation, and avoids impact between the main shaft and the housing, thereby facilitating improving the service life of the balancing machine.

[0016] In a specific possible implementation scheme, the cylinder includes a cylinder body and a piston rod; the fixed cylinder body is arranged below the upper support plate, the piston rod is arranged in the inner cavity of the cylinder body, and the piston rod can slide along the inner cavity of the cylinder body, and the piston rod passes through the upper support plate.

[0017] By adopting the above technical solution, the cylinder is set, and the piston rod is directly opposite to the bottom of the tensioning assembly. When the piston rod is extended to a certain distance, the piston rod pushes the tensioning assembly to rise, and the tensioning assembly applies a reaction force to the piston rod, pushing the piston rod and the cylinder body to move downward, thereby driving the upper support plate to move downward, thereby facilitating the limit fastener to limit the main shaft limit member downward to prevent the main shaft from moving.

[0018] In a specific feasible implementation scheme, the limiting fastener includes a connecting portion, a supporting portion and an abutting portion, wherein the connecting portion, the supporting portion and the abutting portion are integrally arranged, the connecting portion is fixedly connected to the top wall of the upper support plate, one end of the supporting portion is connected to the connecting portion, and the other end is connected to the abutting portion, the abutting portion is horizontally arranged, and the abutting portion is located above the main shaft limiting member.

[0019] By adopting the above technical solution, a limit fastener is set, and when the upper support plate moves downward, the limit fastener is driven to move downward, and the abutment portion abuts downward against the main shaft limiter, thereby generating a downward pulling force on the main shaft, which is convenient for preventing the cylinder from driving the main shaft to rise while the jacking and tensioning assembly rises.

[0020] In a specific possible implementation scheme, the spindle includes a spindle fixing seat and a spindle body, the spindle fixing seat is fixedly arranged inside the shell, and the end of the spindle fixing seat is fixedly connected to the lower edge of the top wall of the shell, the spindle body is coaxially arranged in the spindle fixing seat, and the spindle body is rotatably connected to the spindle fixing seat, and one end of the spindle body passes through the top wall of the shell and is fixedly connected to the clamping assembly.

[0021] By adopting the above technical solution, a spindle is set, and the spindle fixing seat is fixedly connected to the lower edge of the top wall of the shell. At the same time, the spindle body is set in the spindle fixing seat to form a support for the spindle body, so that the spindle body can drive the clamping assembly to rotate on the spindle fixing seat, thereby realizing a balance test of the workpiece.

[0022] In a specific feasible implementation scheme, the clamping assembly includes a receiving plate, a limiting sleeve and an elastic chuck, the receiving plate is fixedly connected to one end of the spindle body extending out of the shell, the limiting sleeve is fixedly connected to the top wall of the receiving plate, the elastic chuck is arranged in the limiting sleeve, the elastic chuck can slide in the inner cavity of the limiting sleeve, the inner cavity of the elastic chuck is provided with a workpiece to be balanced and detected, and the outer wall of the elastic chuck and the inner wall of the limiting sleeve are both provided with matching tapered surfaces.

[0023] By adopting the above technical solution, a clamping assembly is set up, the receiving plate supports the limit sleeve, and the elastic chuck is set in the limit sleeve. When the elastic chuck moves downward in the limit sleeve, the outer wall of the elastic chuck shrinks due to the influence of the tapered surface of the inner wall of the limit sleeve, thereby tightening the elastic chuck and clamping the workpiece in the elastic chuck, thereby clamping and fixing the workpiece.

[0024] In a specific possible implementation scheme, the tensioning assembly includes a pull rod, a disc spring and a limit nut; the pull rod passes through the main shaft body, the pull rod can slide in the inner cavity of the main shaft body, one end of the pull rod is fixedly connected to the bottom wall of the elastic chuck, and the other end is threadedly connected to the limit nut, and the pull rod is located directly above the piston rod;

[0025] The disc spring is coaxially sleeved on the circumferential side wall of the pull rod, and one end of the disc spring abuts against the limit nut, and the other end abuts against the end surface of the main shaft body away from the receiving plate, and the disc spring is compressed between the limit nut and the main shaft body.

[0026] By adopting the above technical solution, a tensioning assembly is set up, and the disc spring is compressed between the limit nut and the main shaft body. Under the action of the restoring force, the limit nut moves downward, and the limit nut drives the pull rod to move downward, and the pull rod pulls the elastic collet downward, so that the elastic collet contracts and clamps. When the cylinder extends, the disc spring continues to be compressed, the piston rod pushes the pull rod upward, and the pull rod drives the elastic collet to move upward in the limit sleeve, and the elastic collet relaxes in the limit sleeve, so that the elastic collet is clamped and the clamped workpiece is released.

[0027] In a specific possible implementation scheme, the drive assembly includes the drive motor, a transmission gear and a driven gear. The drive motor is fixedly mounted on the inner wall of the shell, the transmission gear is coaxially fixedly connected to the output shaft of the drive motor, the driven gear is fixedly connected to the circumferential side wall of the main shaft body, and the driven gear is located at one end of the main shaft body extending out of the main shaft fixing seat, and the driven gear is belt-connected to the transmission gear.

[0028] By adopting the above technical solution, a drive assembly is set up. When the drive motor rotates, the output shaft of the drive motor drives the transmission gear to rotate, the transmission gear drives the driven gear to rotate through a belt connection, the driven gear drives the main shaft to rotate, and the main shaft drives the clamping assembly and the clamped workpiece to rotate, thereby facilitating the dynamic balancing test of the workpiece.

[0029] In a specific feasible implementation scheme, a main shaft limiter is fixedly mounted on the driven gear, and the main shaft limiter includes a horizontal portion and a fixed portion, the fixed portion is fixedly connected to the driven gear, the main shaft body and the pull rod are both arranged on the inner wall of the fixed portion, the horizontal portion is coaxially arranged on the circumferential side wall of the bottom end of the fixed portion, and the horizontal portion extends outward along the radial direction of the driven gear, and the horizontal portion coincides with the vertical projection of the abutment portion.

[0030] By adopting the above technical solution, a spindle limiter is set, and the vertical projections of the horizontal part and the abutment part coincide with each other. When the upper support plate drives the limit fastener to descend, the abutment part abuts against the horizontal part, and the abutment part generates downward pressure on the horizontal part, thereby facilitating the limiting and fixing of the spindle, and preventing the tensioning assembly from driving the spindle to rise, thereby affecting the service life of the balancing machine.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The floating lifting mechanism is set up. When the cylinder lifts the tensioning assembly, the limit fastener abuts against the spindle limiter, which prevents the tensioning assembly from lifting the spindle while it rises, causing the spindle to be misaligned and the impact between the spindle and the housing, thereby facilitating the improvement of the service life of the balancing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The present invention is a schematic diagram of the overall structure of a balancing machine with a floating jacking mechanism according to an embodiment.

[0034] Figure 2 yes Figure 1 The enlarged view of part A is intended to illustrate the clamping assembly.

[0035] Figure 3 yes Figure 1 The enlarged view of part B is intended to illustrate the tensioning assembly and the spindle limiter.

[0036] Figure 4 The invention is a schematic diagram of a floating lifting mechanism of a balancing machine with a floating lifting mechanism according to an embodiment.

[0037] Description of the drawings: 1. Balancing machine body; 11. Shell; 12. Clamping assembly; 121. Plate; 122. Limit sleeve; 123. Elastic chuck; 13. Tensioning assembly; 131. Pull rod; 132. Disc spring; 133. Limit nut; 14. Driving assembly; 141. Driving motor; 142. Transmission gear; 143. Driven gear; 15. Spindle; 151. Spindle fixing seat; 152. Spindle body; 153. Spindle Axis limiter; 1531, horizontal portion; 1532, fixed portion; 2, floating lifting mechanism; 21, support; 22, support member; 221, lower support plate; 222, upper support plate; 223, sliding member; 2231, sliding sleeve; 2232, sliding rod; 2233, spring; 23, cylinder; 231, cylinder body; 232, piston rod; 24, limit fastener; 241, connecting portion; 242, supporting portion; 243, abutting portion. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-4 This application is described in further detail.

[0039] The embodiment of the present application discloses a balancing machine with a floating jacking mechanism.

[0040] Reference Figure 1 A balancing machine with a floating lifting mechanism comprises a balancing machine body 1 and a floating lifting mechanism 2 fixedly arranged inside the balancing machine body 1; the balancing machine body 1 comprises a shell 11, a clamping assembly 12, a tensioning assembly 13, a driving assembly 14 and a spindle 15; the clamping assembly 12 is rotatably arranged on the top wall of the shell 11, the spindle 15 is fixedly connected to the clamping assembly 12, the spindle 15 is located in the inner cavity of the shell 11, and one end of the spindle 15 passes through the top wall of the shell 11, and the spindle 15 is away from the clamping assembly A spindle limiter 153 is coaxially fixedly arranged at one end of the component 12; a workpiece to be balanced and detected is arranged in the inner cavity of the clamping component 12, and the tensioning component 13 is coaxially arranged in the inner cavity of the spindle 15, and one end of the tensioning component 13 is fixedly connected to the clamping component 12, and the other end is abutted against the end of the spindle 15 away from the clamping component 12; the driving component 14 is fixedly installed inside the shell 11; the floating lifting mechanism 2 is fixedly connected to the inner wall of the shell 11, and the floating lifting mechanism 2 is arranged below the tensioning component 13.

[0041] Reference Figure 1 and Figure 2 The clamping assembly 12 includes a receiving disc 121, a limiting sleeve 122 and an elastic chuck 123. The receiving disc 121 is fixedly connected to one end of the main shaft 15 passing through the top wall of the shell 11, the limiting sleeve 122 is fixedly connected to the top wall of the receiving disc 121, and the elastic chuck 123 is arranged in the limiting sleeve 122. The receiving disc 121, the limiting sleeve 122 and the elastic chuck 123 are all coaxially arranged with the main shaft 15; the inner cavity of the elastic chuck 123 is provided with a workpiece to be balanced and detected, and the outer wall of the elastic chuck 123 and the inner wall of the limiting sleeve 122 are both provided with matching tapered surfaces, and the diameter of the tapered surface gradually increases from one end close to the tensioning assembly 13 to the end away from the tensioning assembly 13. When the elastic chuck 123 slides downward in the limiting sleeve 122, the outer wall of the elastic chuck 123 contracts under the constraint of the tapered surface of the inner wall of the limiting sleeve 122 to clamp the workpiece.

[0042] Reference Figure 1 and Figure 2 The spindle 15 includes a spindle fixing seat 151 and a spindle body 152. The spindle fixing seat 151 is fixedly arranged inside the shell 11, and the end of the spindle fixing seat 151 is fixedly connected to the lower edge of the top wall of the shell 11. The spindle body 152 is coaxially arranged in the spindle fixing seat 151. One end of the spindle body 152 passes through the top wall of the shell 11 and is fixedly connected to the bottom wall of the receiving plate 121. The spindle body 152 can rotate in the spindle fixing seat 151, and the receiving plate 121 rotates synchronously with the spindle body 152.

[0043] Reference Figure 1-Figure 3The tensioning assembly 13 includes a pull rod 131, a disc spring 132 and a limit nut 133; the pull rod 131 passes through the main shaft body 152 along the extension direction of the central axis of the main shaft body 152, and the pull rod 131 can slide in the inner cavity of the main shaft body 152. One end of the pull rod 131 is fixedly connected to the bottom wall of the elastic clamp 123, and the other end is threadedly connected to the limit nut 133. The pull rod 131 is located directly above the floating jacking mechanism 2; the disc spring 132 is coaxially sleeved on the circumferential side wall of the pull rod 131, and one end of the disc spring 132 abuts against the limit nut 133, and the other end abuts against the end surface of the main shaft body 152 away from the receiving plate 121. The disc spring 132 is compressed between the limit nut 133 and the main shaft body 152, and the disc spring 132 pushes the pull rod 131 to move downward, so that the pull rod 131 drives the elastic clamp 123 to shrink and clamp in the limit sleeve 122.

[0044] Reference Figure 1 and Figure 3 The driving assembly 14 includes a driving motor 141, a transmission gear 142 and a driven gear 143. The driving motor 141 is fixedly installed on the inner wall of the shell 11. The transmission gear 142 is coaxially fixedly connected with the output shaft of the driving motor 141. The driven gear 143 is fixedly connected to the circumferential side wall of the main shaft body 152, and the driven gear 143 is located at one end of the main shaft body 152 extending out of the main shaft fixing seat 151, and the driven gear 143 is connected to the transmission gear 142 with a belt.

[0045] Reference Figure 3 The main shaft 15 also includes a main shaft limiter 153, which is fixedly mounted on the driven gear 143. The main shaft limiter 153 includes a horizontal portion 1531 and a fixed portion 1532. The fixed portion 1532 is coaxially fixedly connected to the bottom wall of the driven gear 143. The main shaft body 152 and the pull rod 131 are both arranged on the inner wall of the fixed portion 1532. The horizontal portion 1531 is coaxially arranged on the circumferential side wall of the bottom end of the fixed portion 1532, and the horizontal portion 1531 extends outward along the radial direction of the driven gear 143.

[0046] Reference Figure 1 and Figure 4The floating lifting mechanism 2 includes a support 21, a support member 22, a cylinder 23 and a plurality of limit fasteners 24. The support 21 is fixedly connected to the side wall of the housing 11, the support member 22 is fixedly arranged on the top wall of the support 21, the cylinder 23 is fixedly connected to the support member 22, and the cylinder 23 is arranged opposite to the tensioning assembly 13; the support member 22 includes a lower support plate 221, an upper support plate 222 and four sets of sliding members 223; the sliding member 223 includes a sliding sleeve 2231, a sliding rod 2232 and a spring 2233, and the sliding sleeve 2231 and the lower support plate 221 are fixedly connected to each other. The top wall is fixedly connected, the sliding rod 2232 is inserted into the inner cavity of the sliding sleeve 2231, and the sliding rod 2232 can slide along the inner cavity of the sliding sleeve 2231, and one end of the sliding rod 2232 extending out of the sliding sleeve 2231 is fixedly connected to the upper support plate 222; the spring 2233 is coaxially wound around the circumferential side wall of the sliding rod 2232, and one end of the spring 2233 abuts against the end of the sliding sleeve 2231, and the other end abuts against the bottom wall of the upper support plate 222; the cylinder 23 includes a cylinder body 231 and a piston rod 232, the cylinder body 231 is arranged below the upper support plate 222, and The cylinder body 231 is fixedly connected to the bottom wall of the upper support plate 222, the piston rod 232 is arranged in the inner cavity of the cylinder body 231, and the piston rod 232 can slide along the inner cavity of the cylinder body 231, the piston rod 232 is arranged through the upper support plate 222, and the piston rod 232 is directly opposite to the bottom end of the pull rod 131; the limit fastener 24 includes a connecting portion 241, a supporting portion 242 and an abutting portion 243, the connecting portion 241, the supporting portion 242 and the abutting portion 243 are integrally arranged, the connecting portion 241 is fixedly connected to the top wall of the upper support plate 222, and one end of the supporting portion 242 is connected to the connecting portion 2 41, and the other end is connected with the abutment portion 243, the abutment portion 243 is horizontally arranged, and the abutment portion 243 extends inwardly along the radial direction of the piston rod 232, the abutment portion 243 is located above the horizontal portion 1531, and the abutment portion 243 coincides with the projection of the horizontal portion 1531 in the vertical direction; the limiting fasteners 24 can be two, three, or four, as long as they can achieve fixed limiting of the main shaft 15. In this embodiment, two limiting fasteners 24 are arranged, and the two limiting fasteners 24 are evenly distributed about the circumferential side wall of the piston rod 232.

[0047] The implementation principle of a balancing machine with a floating lifting mechanism in this embodiment is as follows: in the initial state, the disc spring 132 is compressed between the limiting nut 133 and the spindle body 152, and under the action of the restoring force of the disc spring 132, the limiting nut 133 moves downward, and the limiting nut 133 drives the pull rod 131 to move downward, and the pull rod 131 pulls the elastic clamp 123 downward, so that the elastic clamp 123 shrinks and clamps in the limiting sleeve 122; when it is necessary to perform a dynamic balancing test on the workpiece, the cylinder 23 is adjusted, the piston rod 232 is extended, the disc spring 132 continues to be compressed, the piston rod 232 pushes the pull rod 131 upward, and the pull rod 131 drives the elastic clamp 123 to move upward in the limiting sleeve 122, and the elastic clamp 123 relaxes in the limiting sleeve 122, so that The elastic chuck 123 opens; after the piston rod 232 pushes the pull rod 131 to rise to a certain height, the reaction force of the pull rod 131 on the piston rod 232 is greater than the thrust of the piston rod 232, and the pull rod 131 pushes the piston rod 232 to move downward, and the piston rod 232 drives the upper support plate 222 to move downward, and the sliding rod 2232 fixedly connected to the upper support plate 222 slides downward in the sliding sleeve 2231. When the upper support plate 222 drives the limiting fastener 24 to descend, the abutting portion 243 abuts against the horizontal portion 1531, and the abutting portion 243 generates downward pressure on the horizontal portion 1531, which is convenient for realizing the limiting fixation of the main shaft 15, avoiding the pull rod 131 from driving the main shaft 15 to rise, and avoiding the impact between the main shaft 15 and the housing 11, thereby facilitating the improvement of the service life of the balancing machine.

[0048] When the elastic chuck 123 is opened, the workpiece is placed in the inner cavity of the elastic chuck 123, the cylinder 23 is adjusted, the piston rod 232 is retracted, the disc spring 132 pushes the pull rod 131 down, and the elastic chuck 123 is pulled downward in the limit sleeve 122, and the elastic chuck 123 clamps the workpiece; finally, the drive motor 141 is started, and the output shaft of the drive motor 141 drives the transmission gear 142 to rotate, and the transmission gear 142 drives the driven gear 143 to rotate through the belt connection, and the driven gear 143 drives the spindle body 152 to rotate, and the spindle body 152 drives the clamping assembly 12 and the clamped workpiece to rotate, and a dynamic balance test is performed on the workpiece.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A balancing machine with a floating lifting mechanism, characterized in that: The balancing machine comprises a balancing machine body (1) and a floating lifting mechanism (2) fixedly arranged inside the balancing machine body (1); the balancing machine body (1) comprises a housing (11), a clamping assembly (12), a tensioning assembly (13), a driving assembly (14) and a main shaft (15); The clamping assembly (12) is rotatably arranged on the top wall of the shell (11), the main shaft (15) is fixedly connected to the clamping assembly (12), the main shaft (15) is located in the inner cavity of the shell (11), and the main shaft (15) passes through the top wall of the shell (11), and a main shaft limiter (153) is coaxially fixedly arranged on one end of the main shaft (15) away from the clamping assembly (12); a workpiece to be balanced and detected is arranged in the inner cavity of the clamping assembly (12), the tensioning assembly (13) is coaxially arranged in the inner cavity of the main shaft (15), and one end of the tensioning assembly (13) is fixedly connected to the clamping assembly (12), and the other end is abutted against the end of the main shaft (15) away from the clamping assembly (12); the driving assembly (14) is fixedly installed inside the shell, and the driving assembly (14) is used to drive the main shaft (15) to rotate; The floating lifting mechanism (2) is fixedly connected to the inner wall of the shell (11), and the floating lifting mechanism (2) is arranged below the tensioning assembly (13); the floating lifting mechanism (2) comprises a support (21), a support member (22), a cylinder (23) and a plurality of position-limiting fasteners (24); the support (21) is fixedly connected to the side wall of the shell (11), the support member (22) is fixedly arranged on the top wall of the support (21), the cylinder (23) is fixedly connected to the support member (22), and the plurality of position-limiting fasteners (24) are fixedly arranged on the top wall of the support member (22).

2. A balancing machine with a floating lifting mechanism according to claim 1, characterized in that: The support member (22) comprises a lower support plate (221), an upper support plate (222) and four groups of sliding members (223); the lower support plate (221) is fixedly connected to the top wall of the support (21); the four groups of sliding members (223) are fixedly arranged on the top wall of the lower support plate (221); the upper support plate (222) is arranged on the top ends of the four groups of sliding members (223); the cylinder (23) is fixedly connected to the bottom wall of the upper support plate (222); and the limiting fastener (24) is fixedly arranged on the top wall of the upper support plate (222); The sliding member (223) includes a sliding sleeve (2231), a sliding rod (2232) and a spring (2233); the sliding sleeve (2231) is fixedly connected to the top wall of the lower support plate (221); the sliding rod (2232) is inserted into the inner cavity of the sliding sleeve (2231), and the sliding rod (2232) can slide along the inner cavity of the sliding sleeve (2231); one end of the sliding rod (2232) extends out of the sliding sleeve (2231) and is fixedly connected to the upper support plate (222); the spring (2233) is coaxially wound around the circumferential side wall of the sliding rod (2232), and the spring (2233) is located between the sliding sleeve (2231) and the upper support plate (222).

3. A balancing machine with a floating lifting mechanism according to claim 2, characterized in that: The cylinder (23) comprises a cylinder body (231) and a piston rod (232); the cylinder body (231) is fixedly arranged below the upper support plate (222), the piston rod (232) is arranged in the inner cavity of the cylinder body (231), and the piston rod (232) can slide along the inner cavity of the cylinder body (231), and the piston rod (232) passes through the upper support plate (222).

4. A balancing machine with a floating lifting mechanism according to claim 3, characterized in that: The limiting fastener (24) comprises a connecting portion (241), a supporting portion (242) and an abutting portion (243); the connecting portion (241), the supporting portion (242) and the abutting portion (243) are integrally arranged; the connecting portion (241) is fixedly connected to the top wall of the upper support plate (222); one end of the supporting portion (242) is connected to the connecting portion (241), and the other end is connected to the abutting portion (243); the abutting portion (243) is horizontally arranged, and the abutting portion (243) is located above the spindle limiting member (153).

5. A balancing machine with a floating lifting mechanism according to claim 4, characterized in that: The spindle (15) comprises a spindle fixing seat (151) and a spindle body (152); the spindle fixing seat (151) is fixedly arranged inside the shell (11), and the end of the spindle fixing seat (151) is fixedly connected to the lower edge of the top wall of the shell (11); the spindle body (152) is coaxially arranged inside the spindle fixing seat (151), and the spindle body (152) is rotatably connected to the spindle fixing seat (151); one end of the spindle body (152) passes through the top wall of the shell (11) and is fixedly connected to the clamping assembly (12).

6. A balancing machine with a floating lifting mechanism according to claim 5, characterized in that: The clamping assembly (12) comprises a receiving plate (121), a limiting sleeve (122) and an elastic chuck (123); the receiving plate (121) is fixedly connected to one end of the spindle body (152) extending out of the housing (11); the limiting sleeve (122) is fixedly connected to the top wall of the receiving plate (121); the elastic chuck (123) is arranged in the limiting sleeve (122); the elastic chuck (123) can slide in the inner cavity of the limiting sleeve (122); the inner cavity of the elastic chuck (123) is provided with a workpiece to be balanced and detected; and the outer wall of the elastic chuck (123) and the inner wall of the limiting sleeve (122) are both provided with matching tapered surfaces.

7. A balancing machine with a floating lifting mechanism according to claim 6, characterized in that: The tensioning assembly (13) comprises a pull rod (131), a disc spring (132) and a limit nut (133); the pull rod (131) passes through the main shaft body (152), the pull rod (131) can slide in the inner cavity of the main shaft body (152), one end of the pull rod (131) is fixedly connected to the bottom wall of the elastic chuck (123), and the other end is threadedly connected to the limit nut (133), and the pull rod (131) is located directly above the piston rod (232); The disc spring (132) is coaxially sleeved on the circumferential side wall of the pull rod (131), and one end of the disc spring (132) abuts against the limiting nut (133), and the other end abuts against the end surface of the main shaft body (152) away from the receiving plate (121), and the disc spring (132) is compressed between the limiting nut (133) and the main shaft body (152).

8. A balancing machine with a floating lifting mechanism according to claim 7, characterized in that: The driving assembly (14) comprises a driving motor (141), a transmission gear (142) and a driven gear (143); the driving motor (141) is fixedly mounted on the inner side wall of the housing (11); the transmission gear (142) is coaxially fixedly connected to the output shaft of the driving motor (141); the driven gear (143) is fixedly connected to the circumferential side wall of the main shaft body (152); the driven gear (143) is located at one end of the main shaft body (152) extending out of the main shaft fixing seat (151); and the driven gear (143) is belt-connected to the transmission gear (142).

9. A balancing machine with a floating lifting mechanism according to claim 8, characterized in that: The main shaft limiter (153) is fixedly mounted on the driven gear (143), and the main shaft limiter (153) includes a horizontal portion (1531) and a fixed portion (1532), the fixed portion (1532) is fixedly connected to the driven gear (143), the main shaft body (152) and the pull rod (131) are both arranged on the inner wall of the fixed portion (1532), the horizontal portion (1531) is coaxially arranged on the circumferential side wall of the bottom end of the fixed portion (1532), and the horizontal portion (1531) extends outwardly along the radial direction of the driven gear (143), and the horizontal portion (1531) coincides with the vertical projection of the abutment portion (243).

Images