CN216179588U

CN216179588U - Main shaft system

Info

Publication number: CN216179588U
Application number: CN202122582923.0U
Authority: CN
Inventors: 曹少云
Original assignee: Suzhou Towa Intelligent Technology Co ltd
Current assignee: Suzhou Towa Intelligent Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-05
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a spindle system, which comprises a direct drive motor and an index plate which is connected with a rotor of the direct drive motor and drives the direct drive motor to rotate, and is characterized in that: the workpiece clamping device also comprises a main shaft clamping head detachably connected with the index plate and a workpiece clamping head detachably connected with the main shaft clamping head; the workpiece chuck comprises a first conical surface arranged on the annular outer wall at the first end of the workpiece chuck, a workpiece jack for inserting a workpiece, and a plurality of slots which are regularly arranged on the outer wall at the first end of the workpiece chuck and communicated with the workpiece jack; a through hole for inserting a workpiece chuck is axially formed in the spindle chuck, a second conical surface corresponding to the first conical surface is formed in the inner wall of the through hole, and the workpiece chuck clamps or releases the workpiece through the conical fit of the two conical surfaces; the utility model has the advantages of relatively simple structure, low noise and convenient installation and use.

Description

Main shaft system

Technical Field

The utility model relates to the field of tool grinders, in particular to a spindle system for a tool grinder.

Background

In a traditional tool grinding machine, a main shaft system adopts a structure that a general motor is connected with a worm gear and a worm, and a main shaft index plate is driven to rotate by mechanical transmission; the defect is that after the worm gear and worm mechanical structure is used for a period of time, errors in dimension are generated due to friction, and therefore process precision is difficult to guarantee. Meanwhile, as the worm gear is adopted for transmission, the phenomena of noise, vibration and the like are obvious when the device is used.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a spindle system which has the advantages of relatively simple structure, low noise and convenient installation and use, reduces the positioning error generated by the traditional mechanical structure and the error in the dimension generated by the friction of the mechanical structure, and ensures the process precision.

A main shaft system comprises a direct drive motor, an index plate, a main shaft chuck and a workpiece chuck, wherein the index plate is connected with a rotor of the direct drive motor and drives the rotor to rotate; the workpiece chuck comprises a first conical surface arranged on the annular outer wall at the first end of the workpiece chuck, a workpiece jack for inserting a workpiece, and a plurality of slots which are regularly arranged on the outer wall at the first end of the workpiece chuck and communicated with the workpiece jack; the spindle chuck is provided with a through hole for inserting the workpiece chuck along the axial direction, the inner wall of the through hole is provided with a second conical surface corresponding to the first conical surface, and the workpiece chuck clamps or loosens the workpiece through the conical fit of the two conical surfaces.

Furthermore, a plurality of T-shaped grooves for placing T-shaped nuts are regularly arranged on one end face of the index plate, a plurality of connecting holes are correspondingly arranged on the spindle chuck, and the spindle chuck and the index plate are correspondingly and sequentially screwed into the connecting holes through connecting pieces and then are fixedly connected after the T-shaped nuts arranged in the T-shaped grooves are arranged; the T-shaped groove can be suitable for assembling spindle chucks of different specifications, and the relative position of the T-shaped nut in the T-shaped groove can be adjusted during installation according to the size of the spindle chuck, so that the T-shaped nut corresponds to the position of the connecting hole arranged on the spindle chuck.

Furthermore, the four T-shaped grooves and the four connecting holes are uniformly distributed in a pairwise corresponding manner; by adopting the design, the device is simple and convenient, has lower processing cost and can also take the stability of installation into consideration.

Furthermore, the second end of the workpiece chuck is connected with a pull rod, the pull rod penetrates through the middle of the direct drive motor and is connected with a power output element of a rotary cylinder arranged at the other end of the direct drive motor, and the rotary cylinder can drive the pull rod and the workpiece chuck connected with the pull rod to perform reciprocating linear movement; the rotary cylinder is used as a power device for driving the pull rod to move linearly in a reciprocating manner, so that the workpiece chuck can clamp or loosen the workpiece quickly and conveniently, manual operation is replaced, and automatic production and processing are facilitated.

The utility model has the beneficial effects that: the direct drive motor is adopted, the output torque is large, and the direct drive motor can be directly connected with a load, so that connecting mechanisms such as a speed reducer, a gear box, a belt pulley, a worm gear and the like are omitted; the direct connection mode is adopted, so that the positioning error generated by a mechanical structure and the error in the dimension generated by the friction of the mechanical structure are reduced, and the process precision is ensured; meanwhile, the installation is more convenient, the noise is less when in use, and the process precision is higher.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic partial split structure of the present invention;

FIG. 3 is a schematic view of the present invention with the spindle chuck removed;

FIG. 4 is a schematic view of another angular overall configuration of the present invention;

FIG. 5 is a schematic view of a disassembled structure of the spindle chuck and the workpiece chuck of the present invention;

figure 6 is a schematic view of another angularly disassembled configuration of the spindle chuck, workpiece chuck of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 6, a spindle system includes a direct drive motor 1, an index plate 2 connected to a rotor of the direct drive motor 1 and driving the direct drive motor to rotate, a spindle chuck 3 detachably connected to the index plate 2, and a workpiece chuck 4 detachably connected to the spindle chuck 3; the workpiece chuck 4 comprises a first conical surface 41 arranged on the annular outer wall at the first end of the workpiece chuck 4, a workpiece insertion hole 42 for inserting a workpiece 5, and a plurality of slots 43 regularly arranged on the outer wall at the first end of the workpiece chuck 4 and communicated with the workpiece insertion hole 42, and the slots are used for enabling the workpiece chuck 4 to contract, so that the size of the workpiece insertion hole 42 can be changed; the spindle chuck 3 is provided with a through hole 31 along the axial direction for inserting the workpiece chuck 4, the inner wall of the through hole 31 is provided with a second conical surface 32 corresponding to the first conical surface 41, and the workpiece chuck 4 clamps or loosens the workpiece 5 through the conical fit of the two conical surfaces.

Referring to fig. 1 to 3 again, the index plate 2 and the spindle chuck 3 are detachably connected by the following structure: a plurality of T-shaped grooves 21 for placing T-shaped nuts are regularly arranged on one end face of the dividing plate 2, preferably four T-shaped grooves are regularly arranged on the end face; a plurality of connecting holes 33, preferably four connecting holes, are correspondingly arranged on the spindle chuck 3 and are threaded holes; the spindle chuck 3 and the index plate 2 are correspondingly and sequentially screwed into the connecting hole 33 and a T-shaped nut arranged in the T-shaped groove 21 through connecting pieces which can be bolts, bolt rods and the like and then are fixedly connected; the T-shaped groove 21 can be suitable for assembling spindle chucks 3 with different specifications, and the relative position of the T-shaped nut in the T-shaped groove 21 can be adjusted during installation according to the size of the spindle chuck 3, so that the T-shaped nut corresponds to the position of the connecting hole 33 arranged on the spindle chuck 3.

Referring to fig. 1-4 again, a second end of the workpiece chuck 4 is connected with a pull rod 6, the pull rod 6 penetrates through the middle of the direct drive motor 1 and is connected with a power output element of a rotary cylinder 7 arranged at the other end of the direct drive motor 1, and the rotary cylinder 7 can drive the pull rod 6 and the workpiece chuck 4 connected with the pull rod 6 to reciprocate linearly; the rotary cylinder 7 is used as a power device for driving the pull rod 6 to move linearly in a reciprocating manner, so that the workpiece 5 can be clamped or loosened by the workpiece chuck 4 conveniently and quickly, manual operation is replaced, and automatic production and processing are facilitated.

The Direct Drive Motor 1 is a short name of a Direct Drive Motor and is called as Direct Drive Motor in English. The direct drive motor 1 can be directly connected with a load, mechanical structures such as a speed reducer and the like are omitted, the precision of the system is improved, efficiency loss caused by the use of the speed reducer is eliminated, and energy is fully utilized; the novel high-speed torque sensor has the unique characteristics of low speed, large torque, high precision positioning, high response speed, simple structure, reduced mechanical loss, low noise, less maintenance and the like.

The rotary cylinder 7 is also called a rotary clamping cylinder, an air inlet guide pipe, an air exhaust guide pipe and an air guide head of the rotary cylinder are all fixed, and a cylinder body can relatively rotate and acts on a grinding machine clamp, and is a cylindrical metal part for guiding a piston to perform linear reciprocating motion in the cylinder body; the rotary cylinder 7 mainly comprises a cylinder body 71, an air guide head 72, an air inlet 73, an air outlet 74, a piston rod and the like, when the rotary cylinder 7 works, the cylinder body 71, a cylinder cover and the air guide head 72 are driven to rotate by external force, the piston and the piston rod can only do reciprocating linear motion, and a pipeline is connected outside the air guide head 72 and is fixed.

The working principle is as follows: when the direct-drive type workpiece machining device is used, the spindle chuck 3 is firstly installed on the index plate 2 through bolts, then a workpiece 5 is inserted into the workpiece insertion hole 42 of the workpiece chuck 4, then the rotary cylinder 7 is started, the rotary cylinder 7 pulls the pull rod 6, the pull rod 6 drives the workpiece chuck 4 to move linearly, the second conical surface 32 arranged on the spindle chuck 3 gradually extrudes the first conical surface 41 of the workpiece chuck 4 in the moving process, the workpiece chuck 4 is contracted, the workpiece chuck 4 clamps the workpiece 5 by matching the two conical surfaces in a taper mode, and then the direct-drive motor 1 drives the index plate 2, the spindle chuck 3, the workpiece chuck 4 and the workpiece 5 to rotate to machine the workpiece 5. After the machining is finished, the rotary cylinder 7 pushes the pull rod 6, the pull rod 6 pushes the front end of the workpiece chuck 4 to move linearly to the outside of the spindle chuck 3, and finally the workpiece chuck 4 loosens the workpiece 5 and the workpiece 5 is taken out.

It should be noted that: in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it is to be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a main shaft system, including directly driving the motor, with directly drive the rotor of motor and be connected and drive rotatory graduated disk, characterized by: the workpiece clamping device also comprises a main shaft clamping head detachably connected with the index plate and a workpiece clamping head detachably connected with the main shaft clamping head; the workpiece chuck comprises a first conical surface arranged on the annular outer wall at the first end of the workpiece chuck, a workpiece jack for inserting a workpiece, and a plurality of slots which are regularly arranged on the outer wall at the first end of the workpiece chuck and communicated with the workpiece jack; the spindle chuck is provided with a through hole for inserting the workpiece chuck along the axial direction, the inner wall of the through hole is provided with a second conical surface corresponding to the first conical surface, and the workpiece chuck clamps or loosens the workpiece through the conical fit of the two conical surfaces.

2. The spindle system of claim 1, wherein: the end face of the index plate is regularly provided with a plurality of T-shaped grooves for placing T-shaped nuts, the spindle chuck is correspondingly provided with a plurality of connecting holes, and the spindle chuck and the index plate are correspondingly and sequentially screwed into the connecting holes through connecting pieces and then are fixedly connected after the T-shaped nuts arranged in the T-shaped grooves are arranged.

3. The spindle system of claim 2, wherein: the T-shaped grooves and the connecting holes are four and are uniformly distributed in a pairwise corresponding mode.

4. A spindle system according to claim 1 or claim 2 wherein: the second end of the workpiece chuck is connected with a pull rod, the pull rod penetrates through the middle of the direct drive motor and is connected with a power output element of a rotary cylinder arranged at the other end of the direct drive motor, and the rotary cylinder can drive the pull rod and the workpiece chuck connected with the pull rod to move linearly in a reciprocating mode.