A quick clamping mechanism for a vertical balancing machine

Abstract

The present invention discloses a quick clamping mechanism for a vertical balancing machine, which includes: a fixed plate, a main shaft seat, a vibrating plate, and a pneumatic clamping assembly. There are two vibrating plates arranged in parallel between the fixed plate and the main shaft seat. One side of the vibrating plate is fixedly installed on the main shaft seat, and the opposite side is fixedly installed on the fixed plate. The pneumatic clamping assembly includes a cylinder block, a piston, and a spreading member. The cylinder block is rotatably installed in the main shaft seat. One end of the cylinder block is provided with an air inlet joint, and the opposite end is provided with a product positioning groove. The piston is elastically connected in the cavity of the cylinder block. A positioning rod is arranged on the back surface of the piston. The positioning rod penetrates through the bottom surface of the product positioning groove, and an expansion block is arranged at the end of the positioning rod. The spreading member is sleeved on the positioning rod, and an opening is arranged on the side wall of the spreading member. Compared with the prior art, the present invention uses a spring and compressed air for internal operation during clamping, with simple clamping, fast speed, compact structure, and stable and reliable performance.

Description

Technical Field

[0001] The present invention relates to the technical field of vertical balancing machines, and particularly to a quick clamping mechanism for a vertical balancing machine. Background Art

[0002] A vertical balancing machine refers to a balancing machine with a vertically installed driving spindle, and its measurement principle is basically the same as that of a general horizontal balancing machine. Due to tolerances and defects during the manufacturing process, disk-shaped or shaft-shaped parts themselves will have an unbalanced phenomenon, resulting in problems such as vibration and noise during their high-speed rotation. Therefore, it is necessary to perform a balance test on them and perform corresponding weight addition or weight reduction treatment to make the product reach a balanced state. The parts are subjected to a balance test by a vertical balancing machine.

[0003] In the existing vertical balancing machines, when clamping parts, the clamping efficiency is low, and the clamping quality is poor, which affects the efficiency of the balance test and the accuracy of the test results. Summary of the Invention

[0004] The purpose of the present invention is to provide a quick clamping mechanism for a vertical balancing machine. During clamping, springs and compressed air are used inside, the clamping is simple, fast, the structure is compact, stable and reliable.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: A quick clamping mechanism for a vertical balancing machine, comprising: a fixing plate, a spindle seat, a vibrating plate, and a pneumatic clamping assembly. There are two parallel vibrating plates arranged between the fixing plate and the spindle seat. One side of the vibrating plate is fixedly installed on the spindle seat, and the opposite side is fixedly installed on the fixing plate. The pneumatic clamping assembly includes a cylinder body, a piston, and a spreading member. The cylinder body is rotatably installed in the spindle seat. One end of the cylinder body is provided with an air inlet joint, and the opposite end is provided with a product positioning groove. The air inlet joint communicates with the cavity inside the cylinder body. The piston is elastically connected in the cavity of the cylinder body. An elastic element is arranged between the piston and the cylinder body. A positioning rod is arranged on the back surface of the piston. The positioning rod passes through the bottom surface of the product positioning groove. An expansion block is arranged at the end of the positioning rod. The spreading member is sleeved on the positioning rod. An opening is arranged on the side wall of the spreading member. A flange is arranged at the top of the spreading member. A first inclined surface is arranged on the outer side wall of the spreading member. A second inclined surface corresponding to the first inclined surface in position is arranged on the inner wall of the cylinder body. A third inclined surface is arranged on the inner side wall of the spreading member. A fourth inclined surface corresponding to the third inclined surface in position is arranged at the bottom of the expansion block.

[0006] As a further description of the above technical solution:

[0007] A first mounting block is provided at the bottom of the main shaft seat, a second mounting block is provided on the fixing plate, a first insulating member and a second insulating member are respectively provided on both sides of the detection sensor, one side of the first insulating member contacts the first mounting block, and the opposite side contacts the detection sensor. A locking screw is provided on the second mounting block, the locking screw is threadedly connected to the second mounting block, and the end of the locking screw contacts the second insulating member. A through hole corresponding to the locking screw in position is provided on the vibrating plate.

[0008] As a further description of the above technical solution:

[0009] A driving motor is provided on the fixing plate, a driven wheel is sleeved on the cylinder block, and the transmission end of the driving motor is connected to the driven wheel through a transmission belt.

[0010] As a further description of the above technical solution:

[0011] A plurality of bearings arranged along the axial direction of the cylinder block itself are provided on the cylinder block. The inner ring of the bearing is sleeved on the cylinder block, and the outer ring of the bearing contacts the inner wall of the main shaft seat.

[0012] As a further description of the above technical solution:

[0013] A first annular protrusion is provided on the top surface of the main shaft seat, and a second annular protrusion corresponding to the first annular protrusion in position is provided on the cylinder block.

[0014] As a further description of the above technical solution:

[0015] The diameter of the second annular protrusion is larger than that of the first annular protrusion.

[0016] As a further description of the above technical solution:

[0017] A scale is provided on the top of the cylinder block.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, when the pneumatic clamping assembly clamps a product, springs and compressed air are used inside to act, realizing the rapid clamping of the product. The clamping process is simple, and the device has a compact structure, is stable and reliable.

[0020] 2. In the present invention, a first annular protrusion is provided on the top surface of the main shaft seat, and a second annular protrusion corresponding to the first annular protrusion in position is provided on the cylinder block. The diameter of the second annular protrusion is larger than that of the first annular protrusion. The first annular protrusion cooperates with the second annular protrusion to form a "labyrinth" - shaped sealing structure between the main shaft seat and the cylinder block, preventing foreign matters from entering the gap between the main shaft seat and the cylinder block.

[0021] 3. In the present invention, the first insulating member and the second insulating member cooperate to sandwich the detection sensor between the first mounting block and the second mounting block, and the locking screw is used to adjust the clamping force. When the driving motor drives the cylinder block to rotate through the transmission belt, the clamped product rotates accordingly. When the product rotates, due to imbalance, it will shake, and the shake is transmitted to the first mounting block through the spindle base, the distance between the first mounting block and the second mounting block changes, and the pressure received by the detection sensor changes accordingly. The detection sensor converts the pressure change amount into an electrical signal and transmits it to the controller, thereby calculating the imbalance amount of the product and realizing the imbalance test of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a perspective view of a quick clamping mechanism for a vertical balancing machine.

[0024] Figure 2 It is a schematic structural diagram of a quick clamping mechanism for a vertical balancing machine from a top view angle.

[0025] Figure 3 It is a schematic structural diagram of a quick clamping mechanism for a vertical balancing machine from a side view angle.

[0026] Figure 4 It is Figure 3 a C-C cross-sectional view of

[0027] Figure 5 It is Figure 4 a partial enlarged view of part A in

[0028] Figure 6 It is Figure 4 a partial enlarged view of part B in

[0029] Legend:

[0030] 1. Fixed plate; 11. Second mounting block; 111. Locking screw; 2. Main shaft seat; 21. First mounting block; 22. First annular protrusion; 3. Vibration plate; 31. Through hole; 4. Pneumatic clamping assembly; 41. Cylinder block; 411. Air inlet joint; 412. Product positioning groove; 413. Second inclined surface; 414. Driven wheel; 415. Second annular protrusion; 42. Piston; 421. Elastic element; 422. Positioning rod; 423. Expansion block; 4231. Fourth inclined surface; 43. Expanding member; 431. Flange; 432. First inclined surface; 433. Third inclined surface; 44. Bearing; 45. Dial; 5. Driving motor; 51. Transmission belt; 6. Detection sensor; 61. First insulating member; 62. Second insulating member. Detailed implementation mode

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated herein usually can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0033] Please refer to Figures 1-6 , the present invention provides a technical solution: a quick clamping mechanism for a vertical balancing machine, including: a fixed plate 1, a main shaft seat 2, a vibration plate 3 and a pneumatic clamping assembly 4. There are two vibration plates 3 arranged in parallel between the fixed plate 1 and the main shaft seat 2. One side of the vibration plate 3 is fixedly installed on the main shaft seat 2, and the opposite side is fixedly installed on the fixed plate 1.

[0034] The pneumatic clamping assembly 4 includes a cylinder block 41, a piston 42, and a spreading member 43. The cylinder block 41 is rotatably installed in the spindle base 2. An air inlet joint 411 is provided at one end of the cylinder block 41, and a product positioning groove 412 is provided at the opposite end. The air inlet joint 411 communicates with the cavity inside the cylinder block 41. The piston 42 is elastically connected in the cavity of the cylinder block 41. An elastic element 421 (specifically, a spring can be used) is provided between the piston 42 and the cylinder block 41. A positioning rod 422 is provided on the back surface of the piston 42. The positioning rod 422 passes through the bottom surface of the product positioning groove 412. An expansion block 423 is provided at the end of the positioning rod 422. The spreading member 43 is sleeved on the positioning rod 422. An opening is provided on the side wall of the spreading member 43, so that the spreading member 43 can expand and open or contract and fit the positioning rod 422 to realize product clamping and positioning and loosening. A flange 431 is provided at the top of the spreading member 43. A first inclined surface 432 is provided on the outer side wall of the spreading member 43. A second inclined surface 413 corresponding to the first inclined surface 432 in position is provided on the inner wall of the cylinder block 41. A third inclined surface 433 is provided on the inner side wall of the spreading member 43. A fourth inclined surface 4231 corresponding to the third inclined surface 433 in position is provided at the bottom of the expansion block 423.

[0035] A first mounting block 21 is provided at the bottom of the spindle base 2. A second mounting block 11 is provided on the fixing plate 1. A first insulating member 61 and a second insulating member 62 are respectively provided on both sides of the detection sensor 6. One side of the first insulating member 61 contacts the first mounting block 21, and the opposite side contacts the detection sensor 6. A locking screw 111 is provided on the second mounting block 11. The locking screw 111 is threadedly connected to the second mounting block 11. The end of the locking screw 111 contacts the second insulating member 62. A through hole 31 corresponding to the locking screw 111 in position is provided on the vibration plate 3. Concave pits and convex platforms with shapes matching the detection sensor 6 can be provided on both the first insulating member 61 and the second insulating member 62 to ensure the positioning effect of the detection sensor 6.

[0036] The first insulating member 61 and the second insulating member 62 cooperate to clamp the detection sensor 6 between the first mounting block 21 and the second mounting block 11. The locking screw 111 is used to adjust the clamping force. When the driving motor 5 drives the cylinder block 41 to rotate through the transmission belt 51, the product to be clamped rotates accordingly. When the product rotates, due to imbalance, it will shake. The shaking is transmitted to the first mounting block 21 through the spindle base 2, and the distance between the first mounting block 21 and the second mounting block 11 changes, and the pressure received by the detection sensor 6 changes accordingly. The detection sensor 6 converts the pressure change amount into an electrical signal and transmits it to the controller, so as to calculate the imbalance amount of the product and realize the imbalance test of the product.

[0037] A driving motor 5 is provided on the fixing plate 1. A driven wheel 414 is sleeved on the cylinder block 41. The transmission end of the driving motor 5 is connected to the driven wheel 414 through a transmission belt 51. The driving motor 5 drives the cylinder block 41 to rotate through the transmission belt 51, thereby driving the product positioned in the product positioning groove 412 to rotate.

[0038] A plurality of bearings 44 arranged along the axial direction of the cylinder block 41 are provided on the cylinder block 41. The inner ring of the bearing 44 is sleeved on the cylinder block 41, and the outer ring of the bearing 44 contacts the inner wall of the main shaft seat 2, realizing the rotatable installation of the cylinder block 41.

[0039] A first annular protrusion 22 is provided on the top surface of the main shaft seat 2. A second annular protrusion 415 corresponding to the first annular protrusion 22 in position is provided on the cylinder block 41. The diameter of the second annular protrusion 415 is larger than that of the first annular protrusion 22. The first annular protrusion 22 cooperates with the second annular protrusion 415 to form a "labyrinth" - shaped sealing structure between the main shaft seat 2 and the cylinder block 41, preventing sundries from entering the gap between the main shaft seat 2 and the cylinder block 41 and ensuring the stable rotation of the cylinder block 41. In addition, a "labyrinth" - shaped sealing structure can also be realized when the diameter of the second annular protrusion 415 is smaller than that of the first annular protrusion 22.

[0040] A scale plate 45 is provided on the top of the cylinder block 41, which is convenient for judging the rotation angle of the product after the product is clamped and positioned.

[0041] Working principle: When clamping the product, first, compressed air is introduced into the cylinder block 41 through the air inlet joint 411. The piston 42 drives the positioning rod 422 to move upward. At this time, since the first inclined surface 432 of the spreading member 43 is squeezed by the second inclined surface 413 during the upward movement, the spreading member 43 contracts and fits the positioning rod 422, and the flange 431 at the top of the spreading member 43 is blocked or hidden by the expansion block 423. In this way, the product can be inserted into the product positioning groove 412. After the product is inserted in place, the compressed air is turned off, and the piston 42 is reset (moves downward) under the action of the elastic element 421, driving the positioning rod 422 to move downward. At this time, since the first inclined surface 432 of the spreading member 43 on the positioning rod 422 is no longer squeezed by the second inclined surface 413 during the downward movement, and at the same time, the expansion block 423 contacts the third inclined surface 433 through the fourth inclined surface 4231, the spreading member 43 is expanded, and the spreading member 43 presses the product through the flange 431, realizing the automatic clamping of the product. When the pneumatic clamping assembly 4 clamps the product, it uses a spring and compressed air to act inside, with simple clamping, fast speed, compact structure, and stable and reliable performance.

[0042] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A quick clamping mechanism for a vertical balancing machine, characterized in that Including: A fixed plate (1), a main shaft seat (2), a vibrating plate (3) and a pneumatic clamping assembly (4). There are two vibrating plates (3) arranged in parallel between the fixed plate (1) and the main shaft seat (2). One side of the vibrating plate (3) is fixedly installed on the main shaft seat (2), and the opposite side is fixedly installed on the fixed plate (1). The pneumatic clamping assembly (4) includes a cylinder body (41), a piston (42) and a spreading member (43). The cylinder body (41) is rotatably installed in the main shaft seat (2). An air inlet joint (411) is provided at one end of the cylinder body (41), and a product positioning groove (412) is provided at the opposite end. The air inlet joint (411) communicates with the cavity inside the cylinder body (41). The piston (42) is elastically connected in the cavity of the cylinder body (41). An elastic element (421) is provided between the piston (42) and the cylinder body (41). A positioning rod (422) is provided on the back of the piston (42). The positioning rod (422) passes through the bottom surface of the product positioning groove (412). An expansion block (423) is provided at the end of the positioning rod (422). The spreading member (43) is sleeved on the positioning rod (422). An opening is provided on the side wall of the spreading member (43). A flange (431) is provided at the top of the spreading member (43). A first inclined surface (432) is provided on the outer side wall of the spreading member (43). A second inclined surface (413) corresponding to the first inclined surface (432) is provided on the inner wall of the cylinder body (41). A third inclined surface (433) is provided on the inner side wall of the spreading member (43). A fourth inclined surface (4231) corresponding to the third inclined surface (433) is provided at the bottom of the expansion block (423).

2. The quick clamping mechanism of a vertical balancing machine according to claim 1, characterized in that, A first mounting block (21) is provided at the bottom of the main shaft seat (2). A second mounting block (11) is provided on the fixed plate (1). A first insulating member (61) and a second insulating member (62) are respectively provided on both sides of the detection sensor (6). One side of the first insulating member (61) contacts the first mounting block (21), and the opposite side contacts the detection sensor (6). A locking screw (111) is provided on the second mounting block (11). The locking screw (111) is threadedly connected to the second mounting block (11). The end of the locking screw (111) contacts the second insulating member (62). A through hole (31) corresponding to the locking screw (111) is provided on the vibrating plate (3).

3. The quick clamping mechanism of a vertical balancing machine according to claim 1, characterized in that, A driving motor (5) is provided on the fixed plate (1). A driven wheel (414) is sleeved on the cylinder body (41). The transmission end of the driving motor (5) is connected to the driven wheel (414) through a transmission belt (51).

4. The quick clamping mechanism of a vertical balancing machine according to claim 1, characterized in that, A plurality of bearings (44) arranged along the axis direction of the cylinder body (41) are provided on the cylinder body (41). The inner ring of the bearing (44) is sleeved on the cylinder body (41), and the outer ring of the bearing (44) contacts the inner wall of the main shaft seat (2).

5. The quick clamping mechanism of a vertical balancing machine according to claim 1, characterized in that A first annular protrusion (22) is provided on the top surface of the main shaft base (2), and a second annular protrusion (415) corresponding to the first annular protrusion (22) in position is provided on the cylinder block (41).

6. The quick clamping mechanism of a vertical balancing machine according to claim 5, characterized in that, The diameter of the second annular protrusion (415) is greater than that of the first annular protrusion (22).

7. A quick clamping mechanism for a vertical balancing machine according to claim 1, characterized in that, A dial (45) is provided at the top of the cylinder block (41).

Images