Disclosure of Invention
The invention aims to provide a balance retainer and a grinding and polishing machine, and aims to solve the problem that when a plurality of clamp devices are used for grinding and polishing side by side, the workpieces to be processed on the clamp devices are not uniformly stressed, so that the product reject ratio is very high.
The invention is realized in such a way that the balance retainer comprises a frame body, an adjusting rod, a connecting shaft, a spring and a cover plate, wherein the frame body comprises a plurality of supporting arms connected to the central point of the frame body, and the cover plate is provided with a plurality of jacks; wherein,
the apron is located the support body below, just the centre point department of apron is connected with connecting axle one end, the centre point department at the support body is connected to the connecting axle other end, the support arm end and the regulation pole one end of support body are connected, adjust the pole other end and insert in the jack of apron, the cover is equipped with the spring on the regulation pole, the spring top is held on support body and apron.
Preferably, the two support arms have the same included angle; the surface formed by the supporting arm and the adjusting rod is vertical to the cover plate.
Preferably, the included angle between every two support arms is 120 degrees.
Preferably, the connecting shaft comprises a connecting flange, two upper bearing seats, two lower bearing seats and a spherical cross joint; wherein,
the spherical cross joint comprises a sphere and four rotating shafts arranged on the sphere, wherein the four rotating shafts are positioned on the same plane, and every two rotating shafts are vertical to each other;
the two upper bearing seats are connected to the frame body; the two lower bearing seats are arranged on a connecting flange, and the connecting flange is arranged at the central point of the cover plate;
the spherical cross joint is characterized in that a pair of rotating shafts positioned in two opposite directions of the spherical cross joint are respectively inserted into the two upper bearing seats, and the other pair of rotating shafts are respectively inserted into the two lower bearing seats.
Preferably, the flange leans on the center department of sphere ten byte direction one side to be equipped with the shrinkage pool, establish the screw thread in the shrinkage pool, be connected with support nut on the screw thread, support nut leans on the upper surface of sphere ten byte direction one side to be the indent sphere, the sphere adaptation of indent sphere and sphere ten byte, just support nut holds on the sphere of sphere ten byte through its indent sphere top.
Preferably, balanced holder still establishes last spring holder and lower spring holder on adjusting the pole including the cover, wherein, it is located the spring and leans on support arm direction one side to go up the spring holder, just it leans on jack direction one side to go up the spring holder top and hold on the support arm, down the spring holder is located the spring, just the spring holder top is held on the apron down, the spring is located between spring holder and the lower spring holder, just the spring top is held on last spring holder and lower spring holder.
Preferably, the balance retainer further comprises an adjusting screw, a thread matched with the adjusting screw is arranged at the extending end, far away from the spring, of the adjusting rod on the supporting arm, the adjusting screw is screwed on the adjusting rod, and a gap is formed between the adjusting screw and the supporting arm.
Preferably, the adjusting rod is provided with an external thread, the lower spring seat is provided with a through hole, an internal thread is arranged in the through hole, and the lower spring seat is fixed on the adjusting rod through the matching of the internal thread and the external thread.
The invention further provides a grinding and polishing machine which comprises a balance retainer, wherein the balance retainer comprises a frame body, an adjusting rod, a connecting shaft, a spring and a cover plate, the frame body comprises a plurality of supporting arms connected to the central point of the frame body, and the cover plate is provided with a plurality of jacks; the utility model discloses a support body, including support body, apron, connecting axle, support arm, regulation pole, spring top, the apron is located the support body below, just the central point department of apron is connected with connecting axle one end, the central point department at the support body is connected to the connecting axle other end, the support arm end of support body is connected with regulation pole one end, adjust the pole other end and insert in the jack of apron, the cover is equipped with the spring on the regulation pole, the spring top is held on.
The invention overcomes the defects of the prior art and provides a balance retainer which comprises a frame body, an adjusting rod, a connecting shaft, a spring and a cover plate, wherein the frame body comprises a plurality of supporting arms connected to the central point of the frame body, and the cover plate is provided with a plurality of jacks; the cover plate is located below the support body, the center point of the cover plate is connected with one end of the connecting shaft, the other end of the connecting shaft is connected to the center point of the support body, the tail end of the supporting arm of the support body is connected with one end of the adjusting rod, the other end of the adjusting rod is inserted into the inserting hole of the cover plate, the spring is sleeved on the adjusting rod, and the spring is supported on the support body and the cover plate. In the balance retainer, the spring can well disperse the force at the center point of the retainer body onto the surface of the cover plate, the cover plate is provided with a plurality of rows of workpieces to be processed, and the pressure on each workpiece to be processed is the same in the whole grinding and polishing operation process, so that each processed workpiece can keep the same shape and specification after the grinding and polishing operation is completed by contacting with the grinding disc.
On the basis, the invention further provides a grinding and polishing machine comprising the balance retainer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 5, wherein fig. 1 is a schematic structural diagram of an embodiment of the balancing cage of the present invention; FIG. 2 is a schematic structural view of portion A of FIG. 1; fig. 3 is a schematic structural view of the connecting shaft 3 in fig. 1; fig. 4 is an exploded view of the connecting shaft 3 of fig. 3; fig. 5 is a sectional view of the plane a-a in fig. 3.
The invention provides a balance retainer, which comprises a frame body 1, an adjusting rod 2, a connecting shaft 3, a spring 4 and a cover plate 5, wherein the frame body 1 comprises a plurality of supporting arms connected to the central point of the frame body 1, and the cover plate 5 is provided with a plurality of jacks; wherein, apron 5 is located 1 below of support body, just the centre point department of apron 5 is connected with 3 one ends of connecting axle, the centre point department at support body 1 is connected to the 3 other ends of connecting axle, the support arm end of support body 1 is connected with 2 one ends of adjusting the pole, adjust the pole 2 other ends and insert in the jack of apron 5, it is equipped with spring 4 to overlap on adjusting pole 2, spring 4 top is held on support body 1 and apron 5.
In the embodiment of the invention, more specifically, two support arms have the same included angle therebetween; the surface formed by the supporting arm and the adjusting rod 2 is vertical to the cover plate 5. More specifically, the included angle between every two support arms is 120 degrees.
In the practical application process of the invention, the cover plate 5 is mainly used for assembling a fixture device in the grinding and polishing machine, a fixture needle is arranged on the fixture device, a workpiece to be processed can be fixed on the fixture needle, the workpiece to be processed is right opposite to a grinding disc of the grinding and polishing machine, in addition, the central point of the frame body 1 is connected with the pushing end of a telescopic motor of the grinding and polishing machine, when the telescopic motor wants to push in the direction of the grinding disc, the workpiece to be processed on the cover plate 5 can be supported on the grinding disc, and the grinding disc can be rotated by a rotating motor to carry out grinding and polishing operation on the workpiece to be processed. In the period, as the cover plate 5 can be provided with a plurality of clamp devices, in order to keep all the workpieces to be machined on the plurality of clamp devices to be contacted with the grinding disc again for grinding disc operation, the acting force of each workpiece to be machined is the same, which requires that the force acted on the frame body 1 by the telescopic motor can be uniformly dispersed to each point of the cover plate 5, therefore, in the invention, the spring 4 can well disperse the force acted on the central point of the frame body 1 by the telescopic motor to the cover plate 5, so that the pressure acted on each workpiece to be machined is the same in the whole grinding and polishing operation process, and each machined workpiece can keep the same shape and specification after the grinding and polishing operation is finished by contacting with the grinding disc.
In a further implementation process, in order to ensure that the direction of the interaction force between the frame body 1 and the cover plate 5 is always located on the central connection line of the frame body 1 and the cover plate 5, thereby ensuring that the force of the telescopic motor acting on the frame body 1 is completely accurate and controllable, in the embodiment of the present invention, the connecting shaft 3 includes a connecting flange 31, an upper bearing seat 32, an upper bearing seat 33, a lower bearing seat 34, a lower bearing seat 35, and a spherical cross 36; wherein,
the spherical cross joint 36 comprises a sphere 361, and a rotating shaft 362, a rotating shaft 363, a rotating shaft 364 and a rotating shaft 365 which are arranged on the sphere 361, wherein the rotating shaft 362, the rotating shaft 363, the rotating shaft 364 and the rotating shaft 365 are positioned on the same plane, and every two rotating shafts are perpendicular to each other; the upper bearing block 32 and the upper bearing block 33 are both connected to the frame body 1; the lower bearing seat 34 and the lower bearing seat 35 are both arranged on the connecting flange 31, and the connecting flange 31 is arranged at the central point of the cover plate 5; the rotating shafts 362 and 364 of the spherical cross 36 located in two opposite directions are respectively inserted into the upper bearing seat 32 and the upper bearing seat 33, and the rotating shafts 363 and 365 are respectively inserted into the lower bearing seat 34 and the lower bearing seat 35.
In the practical application process of the present invention, the frame body 1 and the cover plate 5 move relatively in the left-right or front-back direction, but no matter what direction the frame body 1 and the cover plate 5 move relatively, the acting force direction between the frame body 1 and the cover plate 5 is always located in the opposite two side directions of the sphere 361, so that the interacting force direction between the frame body 1 and the cover plate 5 is always located on the central connecting line of the frame body 1 and the cover plate 5. In the practical application process, the size of the force exerted on the frame body 1 by the telescopic motor needs to be accurately controlled, the force transmission stability between the frame body 1 and the cover plate 5 is very important, and after the telescopic motor 1 exerts the required force, the frame body 1 and the cover plate 5 accurately transmit the force, so that the machining precision and the accuracy of the workpiece to be machined on the cover plate 5 are greatly improved.
In the further implementation process of the present invention, in order to avoid the problem that the accurate transmission of the acting force between the frame body 1 and the cover plate 5 is affected after the ball 361 is worn due to frequent friction with the frame body 1 and the cover plate 5, and further the spherical surface cross joint 36 needs to be frequently replaced, in the embodiment of the present invention, a concave hole 311 is provided at the center of one side of the connecting flange 31 close to the spherical surface cross joint 36 direction, a thread is provided in the concave hole 311, a supporting nut 312 is connected to the thread, the upper surface of one side of the supporting nut 312 close to the spherical surface cross joint direction is an inner concave spherical surface, the inner concave spherical surface is adapted to the spherical surface of the spherical surface cross joint 36, and the supporting nut 312 is supported on the spherical surface of the spherical surface cross joint 36 through the inner concave.
In the practical application process of the invention, when the acting force transmission between the frame body 1 and the cover plate 5 has deviation, the deviation is often caused by the fact that the combination between the ball body 361 and the frame body 1 or the cover plate 5 is not tight due to abrasion of the ball body 361, at the moment, the whole spherical surface cross joint 36 does not need to be replaced, the connecting shaft 3 does not need to be disassembled and assembled, and the problem of the untight combination between the frame body 1 or the cover plate 5 can be solved only by rotating the supporting nut 312 to enable the supporting nut 312 to be screwed in or out from the screw thread in the concave hole 311 and to be more tightly attached to the ball body 361, so that the maintenance and the debugging of the device are more convenient.
In a further implementation process, in order to ensure that the spring 4 can stably transmit the pressure applied on the supporting arm of the frame body 1 to the cover plate 5, in an embodiment of the present invention, the balance holder further includes an upper spring seat 61 and a lower spring seat 62 sleeved on the adjusting rod 2, wherein the upper spring seat 61 is located on one side of the spring 4 in the supporting arm direction, the upper spring seat 61 is supported against the supporting arm, the lower spring seat 62 is located on one side of the spring 4 in the insertion hole direction, the lower spring seat 61 is supported against the cover plate 5, the spring 4 is located between the upper spring seat 61 and the lower spring seat 62, and the spring 4 is supported against the upper spring seat 61 and the lower spring seat 62.
In the practical application process of the invention, the acting force on the frame body 1 is applied to the spring 4 by the upper spring seat 61, the spring 4 transmits the force to the lower spring seat 62, and the lower spring seat 62 transmits the force to the cover plate 5, wherein the upper spring seat 61 and the lower spring seat 62 play a role of fixing the spring 4, which well ensures that the spring 4 can stably transmit the force to the cover plate 5, and ensures the accurate force control of the device.
In a further implementation process, in order to ensure that the forces applied by the support arms to the cover plate 5 are accurate, controllable and equal, in the embodiment of the present invention, the balance holder further includes an adjusting screw 63, a thread adapted to the adjusting screw 63 is provided on the protruding end of the adjusting rod 2 on the support arm away from the spring 4, the adjusting screw 53 is screwed on the adjusting rod 2, and a gap exists between the adjusting screw 63 and the support arm.
In the practical application process of the invention, when the balance retainer is stressed differently by the force transmitted by the cover plate 5, some springs are pressed and need to be extended if the springs are stressed differently, thereby ensuring the instant adjustment and uniform stress of the stress of each adjusting rod 2 in the balance retainer. In addition, in the practical application process of the present invention, the stress of each adjusting rod 2 can be kept consistent by controlling the width of the gap existing between the adjusting screw 63 and the supporting arm in real time according to the strength of the spring.
In a further implementation process, in order to better adjust the strength of the spring, in the embodiment of the invention, the adjusting rod 2 is provided with an external thread, the lower spring seat 62 is provided with a through hole, an internal thread is arranged in the through hole, and the lower spring seat 62 is fixed on the adjusting rod 2 through the matching of the internal thread and the external thread.
In the practical application process of the invention, the lower spring seat 62 can be screwed up or down on the adjusting rods 2, so that the springs 4 are compressed or extended, the elastic strength of the springs 4 is adjusted, and finally the elastic strength of the springs 4 on the adjusting rods 2 is kept consistent, thereby further guaranteeing the controllability of the adjusting rods 2 on the uniform stress of the cover plate 5, and further guaranteeing the precision and the homogeneity of workpieces processed in batches.
The invention further provides a grinding and polishing machine which comprises a balance retainer, wherein the balance retainer comprises a frame body 1, an adjusting rod 2, a connecting shaft 3, a spring 4 and a cover plate 5, the frame body 1 comprises a plurality of supporting arms connected to the central point of the frame body 1, and the cover plate 5 is provided with a plurality of jacks; wherein, apron 5 is located 1 below of support body, just the centre point department of apron 5 is connected with 3 one ends of connecting axle, the centre point department at support body 1 is connected to the 3 other ends of connecting axle, the support arm end of support body 1 is connected with 2 one ends of adjusting the pole, adjust the pole 2 other ends and insert in the jack of apron 5, it is equipped with spring 4 to overlap on adjusting pole 2, spring 4 top is held on support body 1 and apron 5.
In the embodiment of the invention, the grinding and polishing machine corresponds to the balance retainer, has the same working principle and beneficial effects, and is not described herein again.
Compared with the defects and shortcomings of the prior art, the invention has the following beneficial effects: the balance retainer is suitable for plane grinding and polishing operation of a large number of workpieces to be processed, the stress of each workpiece to be processed is balanced, and the qualified rate of the workpieces after grinding and polishing operation is high; the balance retainer is convenient to use, and the precision is adjustable and controllable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.