Balance mechanism

Abstract

The utility model discloses a balance mechanism which is characterized in that the balance mechanism comprises a balance installation seat and two balance blocks, the two balance blocks are arranged in a front-and-back spaced mode, the balance installation seat is provided with a limiting concave cavity, the right side of the limiting concave cavity is open, the limiting concave cavity is through in the front-and-back direction, the balance blocks can be arranged in the limiting concave cavity in an up-and-down swinging mode, and the right side ends of the balance blocks are balance abutting ends. The balance abutting end extends out of the balance installation base, the right side end face of the balance abutting end is a balance abutting face, and the balance abutting face is a flat end face. The device has the advantages of being simple in structure, high in sensitivity and stable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial machinery, in particular to a balancing mechanism. Background Art

[0002] Balancing mechanism design is an integral part of many industrial machinery technologies, involving the creation and optimization of a balanced state within a system. For example, the balancing mechanism is a crucial component of face-driven centers used in workpiece machining and clamping. Its function is to automatically compensate for workpiece eccentricity or tilt, thereby ensuring stability of the center and workpiece during high-speed rotation. Currently, most common balancing mechanisms utilize spherical hinged structures, which lack flexibility, are prone to jamming, and are unstable. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a balancing mechanism which has a simple structure, good flexibility and stable use.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A balancing mechanism includes a balancing mounting seat and two balancing blocks, the two balancing blocks are spaced apart from each other in the front and rear direction, the balancing mounting seat is provided with a limiting cavity with an opening on the right side and passing through the front and rear direction, the balancing blocks can be set in the limiting cavity so as to swing up and down, the right end of the balancing block is a balancing abutment end, the balancing abutment end extends out of the balancing mounting seat, the right end surface of the balancing abutment end is a balancing abutment surface, and the balancing abutment surface is a flat end surface.

[0006] The two balancing blocks are connected by a mounting bracket, and the mounting bracket includes a mounting block, and the mounting block is fixedly mounted in the limiting cavity. The front end face and the rear end face of the mounting block are respectively protruded with a rotating mounting column, and the two rotating mounting columns are coaxial. The balancing block is provided with a rotating mounting hole that matches the rotating mounting column, and the balancing block is rotatably mounted on the matching rotating mounting column through the rotating mounting hole.

[0007] The end of the rotating installation column extends out from the correspondingly installed balancing block and is clamped and installed with a clamping spring.

[0008] The limiting cavity includes a left limiting cavity and a right limiting cavity arranged in sequence from left to right. The mounting block is a rectangular block. The left limiting cavity cooperates with the mounting block. The left end of the mounting block is embedded and installed in the left limiting cavity. The balancing block can be swung up and down in the right limiting cavity. Swinging gaps are respectively provided between the upper end surface of the balancing block and the upper end surface of the right limiting cavity, and between the lower end surface of the balancing block and the lower end surface of the right limiting cavity.

[0009] The upper end surface of the balancing block has an upper inclined end surface inclined upward from left to right, and the lower end surface of the balancing block has a lower inclined end surface inclined downward from left to right. The upper inclined end surface and the lower inclined end surface are arranged in a mirror-symmetrical manner. A corresponding upper inclined limiting surface inclined upward from left to right is arranged at a position matching the upper inclined end surface on the upper end surface of the right limit chamber. A corresponding lower inclined limiting surface inclined downward from left to right is arranged at a position matching the lower inclined end surface on the lower end surface of the right limit chamber. The swing gap is arranged between the upper inclined end surface and the upper inclined limiting surface, and between the lower inclined end surface and the lower inclined limiting surface.

[0010] The right side of the upper inclined end face is connected to an upper flat end face, and the right side of the lower inclined end face is connected to a lower flat end face. The parts in the right limit chamber corresponding to the upper flat end face and the lower flat end face are all matching flat limit end faces, and the swing gap is provided between the upper flat end face, the lower flat end face and the corresponding flat limit end faces.

[0011] The mounting bracket is fixedly connected to the balancing mounting seat through a pin shaft passing through from top to bottom.

[0012] Compared with the prior art, the advantages of the present invention are: simple structure, a balancing block that can be swung up and down is used to abut against the corresponding component that needs to be balanced, and the corresponding balancing abutting surface is a flat end surface. The two balancing blocks have four force points and can be used to abut against four components with ball head abutting parts. The dynamic balance is compensated by the up and down swinging of the balancing block, so that the four force positions can have different adjustment positions, which has high sensitivity and is relatively stable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a front view structural diagram of the utility model;

[0015] Figure 3 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a second cross-sectional structural diagram of the present invention;

[0017] Figure 5 It is a schematic diagram of a partially exploded structure in the present utility model;

[0018] Figure 6 This is a schematic diagram of the first cross-sectional structure of the utility model applied to the end face driving top;

[0019] Figure 7 This is a second cross-sectional structural diagram of the utility model applied to an end face driving center. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0021] As shown in the figure, a balancing mechanism includes a balancing mounting seat 202 and two balancing blocks 5. The two balancing blocks 5 are spaced apart from each other in the front and rear directions. The balancing mounting seat 202 is provided with a limiting cavity 21 with an opening on the right side and passing through the front and rear directions. The balancing blocks 5 can be set in the limiting cavity 21 so as to swing up and down. The right end of the balancing block 5 is a balancing abutment end. The balancing abutment end extends out of the balancing mounting seat 202, and the right end surface of the balancing abutment end is a balancing abutment surface 51.

[0022] In this specific embodiment, the two balancing weights 5 are connected by a mounting bracket, which includes a mounting block 6. The mounting block 6 is fixedly mounted in the limiting cavity 21. The front and rear faces of the mounting block 6 are respectively provided with protruding rotating mounting posts 61. The two rotating mounting posts 61 are coaxial. The balancing weight 5 is provided with a rotating mounting hole (not marked in the figure) that matches the rotating mounting post 61. The balancing weight 5 is rotatably mounted on the matching rotating mounting post 61 through the rotating mounting hole. The above-mentioned connection and installation structure for achieving the up and down swing of the balancing weight 5 is simple and the connection and installation are stable.

[0023] In this specific embodiment, in order to ensure that the balancing weight 5 can be stably installed on the mounting bracket, during the specific installation, the end of the rotating mounting column 61 is extended to the corresponding mounting balancing weight 5 and is clamped with a retaining spring 10 to prevent it from falling off.

[0024] In this specific embodiment, the limiting cavity 21 includes a left limiting cavity 211 and a right limiting cavity 212, which are arranged sequentially from left to right. The mounting block 6 is a rectangular block. The left limiting cavity 211 cooperates with the mounting block 6. The left end of the mounting block 6 is embedded and installed in the left limiting cavity 211. The balancing weight 5 is arranged in the right limiting cavity 212 so as to be able to swing up and down. A swing gap 7 is respectively provided between the upper end surface of the balancing weight 5 and the upper end surface of the right limiting cavity 212, and between the lower end surface of the balancing weight 5 and the lower end surface of the right limiting cavity 212. The left limiting cavity 211 limits the mounting block 6 to be stably fixed and installed, and the right limiting cavity 212 limits the vertical swing stroke of the balancing weight 5 to prevent excessive floating from affecting normal use.

[0025] In this specific embodiment, the upper end surface of the balancing weight 5 has an upper oblique end surface 53 that tilts upward from left to right, and the lower end surface of the balancing weight 5 has a lower oblique end surface 54 that tilts downward from left to right. The upper oblique end surface 53 and the lower oblique end surface 54 are arranged in mirror symmetry. A matching upper oblique limiting surface 213 that tilts upward from left to right is provided on the upper end surface of the right limiting chamber 212 at a position matching the upper oblique end surface 53. A matching lower oblique limiting surface 214 that tilts downward from left to right is provided on the lower end surface of the right limiting chamber 212 at a position matching the lower oblique end surface 54. A swing gap 7 is provided between the upper oblique end surface 53 and the upper oblique limiting surface 213, and between the lower oblique end surface 54 and the lower oblique limiting surface 214. The swing gap 7 formed by the cooperation between the oblique end surfaces enables the balancing weight 5 to swing more flexibly.

[0026] In this specific embodiment, an upper flat end surface 531 is connected to the right side of the upper inclined end surface 53, and a lower flat end surface 541 is connected to the right side of the lower inclined end surface 54. The portions of the right limit chamber 212 corresponding to the upper flat end surface 531 and the lower flat end surface 541 are both matched flat limit end surfaces 215. A swing gap 7 is provided between the upper flat end surface 531, the lower flat end surface 541 and the corresponding flat limit end surfaces 215. The above design realizes controllable swing stroke.

[0027] In this embodiment, the mounting bracket is fixedly connected to the support portion 202 through a pin 8 passing through from top to bottom. The structure is simple and easy to install and disassemble.

[0028] This balancing mechanism is applied to the end face drive center structure, and the balancing mechanism is installed as a whole in the driving body 1 of the end face drive center, so that the balancing mounting seat 202 can move left and right along the axial direction, pushing the cutting edge of the transmission pin 4 on the end face drive center to turn into the end face of the workpiece. Under the action of the balancing mechanism, the two ends of the balancing block 5 can provide the same supporting force, so that the clamping force of each transmission pin 4 on the end face of the workpiece is uniform and stable, and the torque of the lathe spindle can be stably transmitted to the workpiece. When the end face of the workpiece is an inclined surface, the balancing mechanism can realize one or one side of the transmission pin inward and the other transmission pin extended. At this time, the balancing block 5 is balanced in an inclined state through the support of the balancing mounting seat 202. Therefore, during the processing process, the balancing block 5 can always achieve dynamic balance, so that the end drive is always stable when clamping the workpiece and has a sufficiently large clamping force.

Claims

1. A balancing mechanism, characterized in that It includes a balancing mounting seat and two balancing blocks, the two balancing blocks are spaced apart from each other in the front and rear direction, the balancing mounting seat is provided with a limiting cavity with an opening on the right side and passing through the front and rear direction, the balancing blocks can be set in the limiting cavity so as to swing up and down, the right end of the balancing block is a balancing abutment end, the balancing abutment end extends out of the outside of the balancing mounting seat, the right end surface of the balancing abutment end is a balancing abutment surface, and the balancing abutment surface is a flat end surface.

2. A balancing mechanism according to claim 1, characterized in that The two balancing blocks are connected by a mounting bracket, and the mounting bracket includes a mounting block, and the mounting block is fixedly mounted in the limiting cavity. The front end face and the rear end face of the mounting block are respectively protruded with a rotating mounting column, and the two rotating mounting columns are coaxial. The balancing block is provided with a rotating mounting hole that matches the rotating mounting column, and the balancing block is rotatably mounted on the matching rotating mounting column through the rotating mounting hole.

3. A balancing mechanism according to claim 2, characterized in that The end of the rotating installation column extends out from the correspondingly installed balancing block and is clamped and installed with a clamping spring.

4. A balancing mechanism according to claim 2, characterized in that The limiting cavity includes a left limiting cavity and a right limiting cavity arranged in sequence from left to right. The mounting block is a rectangular block. The left limiting cavity cooperates with the mounting block. The left end of the mounting block is embedded and installed in the left limiting cavity. The balancing block can be swung up and down in the right limiting cavity. Swinging gaps are respectively provided between the upper end surface of the balancing block and the upper end surface of the right limiting cavity, and between the lower end surface of the balancing block and the lower end surface of the right limiting cavity.

5. A balancing mechanism according to claim 4, characterized in that The upper end surface of the balancing block has an upper inclined end surface inclined upward from left to right, and the lower end surface of the balancing block has a lower inclined end surface inclined downward from left to right. The upper inclined end surface and the lower inclined end surface are arranged in a mirror-symmetrical manner. A corresponding upper inclined limiting surface inclined upward from left to right is arranged at a position matching the upper inclined end surface on the upper end surface of the right limit chamber. A corresponding lower inclined limiting surface inclined downward from left to right is arranged at a position matching the lower inclined end surface on the lower end surface of the right limit chamber. The swing gap is arranged between the upper inclined end surface and the upper inclined limiting surface, and between the lower inclined end surface and the lower inclined limiting surface.

6. A balancing mechanism according to claim 5, characterized in that The right side of the upper inclined end face is connected to an upper flat end face, and the right side of the lower inclined end face is connected to a lower flat end face. The parts in the right limit chamber corresponding to the upper flat end face and the lower flat end face are all matching flat limit end faces, and the swing gap is provided between the upper flat end face, the lower flat end face and the corresponding flat limit end faces.

7. A balancing mechanism according to claim 2, characterized in that The mounting bracket is fixedly connected to the balancing mounting seat through a pin shaft passing through from top to bottom.

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