WO2024164302A1

WO2024164302A1 - Workbench having drive and angle positioning structure

Info

Publication number: WO2024164302A1
Application number: PCT/CN2023/075394
Authority: WO
Inventors: 陈松江; 傅靖任; 蔡嘉城
Original assignee: 乔崴进科技股份有限公司; 谦耀工业股份有限公司
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2024-08-15

Abstract

A workbench (100) having a drive and angle positioning structure, comprising a workbench body (110), at least one clamping mechanism (120), a first driven gear structure (130), a second driven gear structure (140), a first torque motor (150) and a second torque motor (160). The first driven gear structure (130) has a first upper gear (132) and a first lower gear (134), the first upper gear (132) and a indexing gear (112) meshing with each other. The second driven gear structure (140) has a second upper gear (142) and a second lower gear (144), the second upper gear (142) and the indexing gear (112) meshing with each other. A first driving gear (152) is provided above the first torque motor (150), the first driving gear (152) and the first lower gear (134) meshing with each other. A second driving gear (162) is provided above the second torque motor (160), the second driving gear (162) and the second lower gear (144) meshing with each other. The workbench body (110) rotates by means of same-direction driving or opposite-direction driving, or stops rotation, to complete angle positioning.

Description

Workbench with transmission and angle positioning structure

Technical Field

The invention relates to a workbench, in particular to a workbench with two motors and a transmission and angle positioning structure.

Prior Art

When a machine tool processes a workpiece, it will place the workpiece on the workbench of the machine tool and install a tool on the spindle, and the workpiece can be processed by the tool. When processing, the object to be processed is usually placed on the work platform of the workbench to facilitate the staff to process the object manually or by operating the machine. In the early days, the simple workbench only had a work platform firmly supported by a base or a support seat. The operator could place the object to be processed on the work platform, hold the object in one hand, and hold the tool in the other hand to process the object. However, with the progress of the times, due to the increasingly complex design of the product in appearance and structure, in order to realize various designs, increase processing speed and respond to various processing needs, some industries began to design multi-axis processing machines and developed machine tools with multiple movable axes; however, multi-axis processing machines have more processing options for the actuating axes, so they can meet more diversified and more difficult processing needs, and are currently widely used by the relevant processing industry.

However, under the existing technology, it takes a lot of torque to rotate the processing table, so the existing technology uses a horizontal motor (very large) or a transmission shaft (very long), so the machine is usually very large. In addition, the angle positioning and transmission processing turntable under the existing technology are activated separately, so if the angle needs to be positioned, the gear needs to be disengaged, and then the angle positioning function is operated, and the transmission is the opposite. The operation of the existing technology requires the action of disengaging the gear, so the operation efficiency of the existing technology is slow.

Therefore, how to solve the above problems and deficiencies of the prior art has become a research and development topic that relevant industry players are eager to address.

Summary of the invention

The purpose of the present invention is to provide a workbench with a transmission and angle positioning structure to solve the above-mentioned technical problems existing in the prior art.

To achieve the above object, the present invention provides a workbench with a transmission and angle positioning structure, which is used to fix and rotate a workpiece to be processed so that a multi-axis processing machine can process it. The workbench with a transmission and angle positioning structure includes:

A workbench body, the lower side of which has an indexing gear;

At least one clamping mechanism, which is arranged on the upper side of the workbench body, and is used to clamp the workpiece to be processed;

a first driven gear structure having a first upper gear and a first lower gear, wherein the first upper gear and the indexing gear are meshed with each other;

a second driven gear structure having a second upper gear and a second lower gear, wherein the second upper gear and the indexing gear are meshed with each other;

a first torque motor, with a first driving gear disposed on the upper portion thereof, the first driving gear being meshed with the first lower gear, wherein the first driving gear is driven by the first torque motor; and

a second torque motor, a second driving gear is disposed above the second torque motor, and the second driving gear is meshed with the second lower gear, wherein the second driving gear is driven by the second torque motor,

The first torque motor and the second torque motor are driven in the same direction to rotate the workbench body.

The first torque motor and the second torque motor are driven in opposite directions to stop the workbench body from rotating to complete the angle positioning.

In one embodiment of the present invention, the first driven gear structure and the second driven gear structure are substantially the same.

In one embodiment of the present invention, the first driving gear is substantially the same as the second driving gear.

In one embodiment of the present invention, the radius of the first upper gear is smaller than the radius of the first lower gear.

In one embodiment of the present invention, the radius of the second upper gear is smaller than the radius of the second lower gear.

In one embodiment of the present invention, the radius of the first driving gear is smaller than the radius of the first lower gear.

In one embodiment of the present invention, the radius of the second driving gear is smaller than the radius of the second lower gear.

In one embodiment of the present invention, when the first torque motor and the second torque motor are driven in the same direction, the workbench body is subjected to a rotational force.

In one embodiment of the present invention, when the first torque motor and the second torque motor are driven in opposite directions, the rotating workbench body will be subjected to resistance.

The advantage of the present invention is that the workbench body stops rotating to complete angle positioning by driving the first torque motor and the second torque motor in opposite directions.

The following detailed description is based on specific embodiments to make it easier to understand the purpose, technical content, characteristics and effects achieved by the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a workbench with a transmission and angle positioning structure according to the present invention.

FIG. 2 is a schematic diagram showing that the first torque motor and the second torque motor of the present invention rotate in the same direction.

FIG. 3 is a schematic diagram showing that the first upper gear and the second upper gear of the present invention rotate in the same direction.

FIG. 4 is a schematic diagram showing the first torque motor and the second torque motor rotating in opposite directions according to the present invention.

FIG. 5 is a schematic diagram showing that the first upper gear and the second upper gear of the present invention rotate in opposite directions.

Explanation of the accompanying drawings: 100-a workbench with a transmission and angle positioning structure; 110-a workbench body; 112-a dividing gear; 120-a clamping mechanism; 130-a first driven gear structure; 132-a first upper gear; 134-a first lower gear; 140-a second driven gear structure; 142-a second upper gear; 144-a second lower gear; 150-a first torque motor; 152-a first driving gear; 160-a second torque motor; 162-a second driving gear.

DETAILED DESCRIPTION

In order to solve many problems of the prior art, the inventor has conducted years of research and development to improve the shortcomings of existing products. The following will introduce in detail how the present invention uses a workbench with a transmission and angle positioning structure to achieve the most efficient functional requirements.

Please refer to FIG. 1, which is a schematic diagram of a workbench with a transmission and angle positioning structure of the present invention. As shown in the figure, the workbench 100 with a transmission and angle positioning structure can be fixed and rotated according to the workpiece to be processed, so as to stabilize and position the workpiece to be processed. The workbench 100 with a transmission and angle positioning structure includes a workbench body 110, at least one clamping mechanism 120, a first driven gear structure 130, a second driven gear structure 140, a first torque motor 150 and a second torque motor 160, wherein the torque motor can generate a higher torque value in a short distance compared to the spindle motor. A dividing gear 112 is provided on the lower side of the workbench body 110. The clamping mechanism 120 is disposed on the upper side of the workbench body 110, and the clamping mechanism 120 is used to clamp and fix the workpiece to be processed (not shown). In the embodiment of the present invention, there are four clamping mechanisms 120 on the workbench body 110, but it is not limited to four. The first driven gear structure 130 has a first upper gear 132 and a first lower gear 134, and the first upper gear 132 is disposed on the first lower gear 134, the radius of the first upper gear 132 is smaller than the radius of the first lower gear 134, wherein the first upper gear 132 and the indexing gear 112 are meshed with each other. The second driven gear structure 140 has a second upper gear 142 and a second lower gear 144, and the second upper gear 142 is disposed on the second lower gear 144, the radius of the second upper gear 142 is smaller than the radius of the second lower gear 144, wherein the second upper gear 142 and the indexing gear 112 are meshed with each other. The first driven gear structure 130 and the second driven gear structure 140 are substantially the same, and the bottoms thereof are both fixedly connected to the base of the workbench.

In addition, a first driving gear 152 is disposed above the first torque motor 150, and the first driving gear 152 is meshed with the first lower gear 134, and the radius of the first driving gear 152 is smaller than the radius of the first lower gear 134, wherein the first driving gear 152 is driven by the first torque motor 150. A second driving gear 162 is disposed above the second torque motor 160, and the second driving gear 162 is meshed with the second lower gear 144, and the radius of the second driving gear 162 is smaller than the radius of the second lower gear 144, wherein the second driving gear 162 is driven by the second torque motor 160. The first driving gear 152 and the second driving gear 162 are substantially the same. It is worth mentioning that under the prior art, a large torque is required to drive the processing turntable, so the prior art practice uses a horizontal motor (very large) or a transmission shaft (very long), so the machine is usually very large. However, in the embodiment of the present invention, the first torque motor 150 and the second torque motor 160 are much smaller than the traditional horizontal motor, so the entire machine can be reduced in size and reduce costs. In addition, the first torque motor 150 and the second torque motor 60 directly connect the load to the gears, avoiding any mechanical transmission parts, and using gears to transmit the mechanism. Unlike the brushed rotary motor, there is no contact between the rotor and the stator, so there is no mechanical wear, high reliability and long service life. Because there are fewer mechanical parts, maintenance is simple and the system cost is low. In addition, the dual-torque motor can increase the torque without using a gearbox, and the deceleration can be achieved through the reverse motion of the dual-torque motor without the need to set up a deceleration device.

Please refer to Figures 1 to 3 at the same time. Figure 2 is a schematic diagram of the first torque motor and the second torque motor of the present invention rotating in the same direction. Figure 3 is a schematic diagram of the first upper gear and the second upper gear of the present invention rotating in the same direction. It is worth mentioning that the workbench body 110 is rotated by driving the first torque motor 150 and the second torque motor 160 in the same direction. When the first torque motor 150 and the second torque motor 160 are driven in the same direction, the workbench body 110 will be subjected to the application of a rotational force. Further, when the workbench body 110 needs to rotate 15 degrees (a certain preset angle), the first torque motor 150 and the second torque motor 160 will be driven in the same direction, and because the radius of the first drive gear 152 is smaller than the radius of the first lower gear 134 and the radius of the second drive gear 162 is smaller than the radius of the second lower gear 144, two motors are used to transmit simultaneously to increase torque. Next, the first driving gear 152 drives the first lower gear 134 to rotate the first driven gear structure 130, and the second driving gear 162 drives the second lower gear 144 to rotate the second driven gear structure 140. Finally, the first upper gear 134 of the first driven gear structure 130 and the second upper gear 144 of the second driven gear structure 140 simultaneously drive the indexing gear 112 to rotate, and the workbench body 110 also rotates simultaneously. As for how the workbench body 110 rotates and is positioned to 15 degrees, it will be further described below.

In addition, please refer to FIG. 1, FIG. 4 and FIG. 5 simultaneously. FIG. 4 is a schematic diagram of the first torque motor and the second torque motor of the present invention rotating in opposite directions. FIG. 5 is a schematic diagram of the first upper gear and the second upper gear of the present invention rotating in opposite directions. Schematic diagram of the rotation in the opposite direction. The workbench body 110 is stopped from rotating by driving the first torque motor 150 and the second torque motor 160 in the opposite direction to complete the angle positioning (positioning of the preset angle). When the first torque motor 150 and the second torque motor 160 are driven in the opposite direction, the rotating workbench body 110 will be subjected to resistance. Further, when the workbench body 110 rotates almost to 15 degrees, one of the first torque motor 150 and the second torque motor 160, such as the first torque motor 150, will start to drive in the opposite direction to be used as a brake function, thereby applying resistance to the rotating workbench body 110 until the workbench body 110 rotates and is positioned to 15 degrees. Through the above-mentioned operating mechanism, not only can the torque be increased without the need for a gearbox, but the angle positioning can also be made more accurate and the backlash can be eliminated. In addition, the angle positioning and transmission processing turntables under the prior art are separately actuated, so if the angle needs to be positioned, the gear needs to be disengaged, and then the angle positioning function is operated, and the transmission is reversed. The operation of the prior art requires the action of stripping teeth, so the operation efficiency of the prior art is relatively slow. However, the angle positioning and transmission processing turntable of the present invention can be moved at the same time, thereby greatly improving the operation efficiency.

In addition, the embodiment of the present invention only uses two torque motors 150 and 160 and two driven gear structures 130 and 140 for illustration. Under the spirit of the above-mentioned operating mechanism, other embodiments can increase the number of torque motors and the number of driven gears to more than two respectively, which is not limited to the two number of the present invention.

In summary, the workbench with the transmission and angle positioning structure disclosed in the present invention can bring the following effects:

1. Torque can be increased without the use of a gearbox, and angle positioning can be more accurate and backlash can be eliminated;

2. No additional deceleration device is required to achieve deceleration through the reverse movement of the dual torque motor;

3. The entire machine can be reduced in size and cost; and

4. The angle positioning and transmission processing turntable can move at the same time, thus greatly improving the operating efficiency.

However, the above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications based on the inventive concept of the present invention should be included in the protection scope of the present invention.

Claims

A workbench with a transmission and angle positioning structure is used to fix and rotate a workpiece to be processed so that a multi-axis processing machine can process it. The workbench with a transmission and angle positioning structure comprises:

A workbench body, the lower side of which has an indexing gear;

At least one clamping mechanism, which is arranged on the upper side of the workbench body, and is used to clamp the workpiece to be processed;

a first driven gear structure having a first upper gear and a first lower gear, wherein the first upper gear and the indexing gear are meshed with each other;

a second driven gear structure having a second upper gear and a second lower gear, wherein the second upper gear and the indexing gear are meshed with each other;

a first torque motor, with a first driving gear disposed on the upper portion thereof, the first driving gear being meshed with the first lower gear, wherein the first driving gear is driven by the first torque motor; and

a second torque motor, a second driving gear is disposed above the second torque motor, and the second driving gear is meshed with the second lower gear, wherein the second driving gear is driven by the second torque motor,

The first torque motor and the second torque motor are driven in the same direction to rotate the workbench body.

The first torque motor and the second torque motor are driven in opposite directions to stop the workbench body from rotating to complete the angle positioning.
The workbench with a transmission and angle positioning structure as claimed in claim 1, wherein the first driven gear structure is substantially the same as the second driven gear structure.
The workbench with a transmission and angle positioning structure as claimed in claim 1, wherein the first driving gear and the second driving gear are substantially the same.
The workbench with a transmission and angle positioning structure as described in claim 1 is characterized in that the radius of the first upper gear is smaller than the radius of the first lower gear.
The workbench with a transmission and angle positioning structure as described in claim 1 is characterized in that the radius of the second upper gear is smaller than the radius of the second lower gear.
The workbench with a transmission and angle positioning structure as described in claim 1 is characterized in that the radius of the first driving gear is smaller than the radius of the first lower gear.
The workbench with a transmission and angle positioning structure as described in claim 1 is characterized in that the radius of the second driving gear is smaller than the radius of the second lower gear.
The workbench with transmission and angle positioning structure as claimed in claim 1, characterized in that: When the first torque motor and the second torque motor are driven in the same direction, the workbench body will be subjected to a rotational force.
The workbench with a transmission and angle positioning structure as described in claim 1 is characterized in that when the first torque motor and the second torque motor are driven in opposite directions, the rotating workbench body will be subjected to resistance.