TW201534824A - Transmission assembly - Google Patents

Abstract

A transmission assembly having a base, a connection portion and an upper cover is disclosed, wherein the base connects onto the sliding block of the linear actuator, and the connection portion extends upwardly from the front and rear end of the base, and the upper cover includes an upper cover portion and a supporting portion with a space which is formed between the upper cover portion and the supporting portion and laterally communicated at left and right sides, and the supporting portion extends upwardly from the top end of the connection portion, and the top end of the supporting portion is disposed with a left guide part and a right guide part, thereby the structure formed by integrally connecting the base, connection portion and upper cover together could efficiently reduce the cost of production and the error of the production and assembly so as to increase the precision of the production.

Description

Transmission base assembly

The present invention relates to a transmission base assembly, and more particularly to an integrally formed molding for assembly on a linear actuator.

Industrial robots are used in many automated production plants, especially for certain special environments such as: dangerous, harsh, monotonous, complex, delicate, heavy-duty or work environments that must be operated 24/7. Very suitable for industrial robots. Industrial robots must be designed to be free to operate within the working space, that is, to have sufficient degrees of freedom under control. Therefore, by providing a linear actuator with a belt and a slide rail on the X-axis, Y-axis or Z-axis of the industrial robot, the industrial robot can have three degrees of freedom in the X-axis, the Y-axis or the Z-axis, so that the robot arm is Move in three directions.

As shown in FIG. 5, it is a conventional linear actuator a for industrial robots, wherein the linear actuator a is provided with a belt structure, and the belt structure is connected to a rotating shaft b, and the rotating shaft b is rotated by the driving of the servo motor. And let the transmission belt structure drive the transmission seat assembly c to move forward and backward. Since the transmission seat assembly c is connected with the robot arm, the robot arm can be moved.

The above-mentioned transmission seat assembly is mainly composed of an upper cover, a dustproof belt base and a slider fixing seat which are sequentially stacked and locked from top to bottom, and the slider fixing seat is locked to the two sliding parts. On the block, the toothed belt of the belt structure is connected to both ends of the slider holder, thereby driving the transmission base assembly to move when the toothed belt moves. However, since the above transmission base assembly is made of cast or aluminum The upper cover, the dustproof strap base and the slider fixing base are locked and combined, which not only requires casting and processing separately, but also increases working time and processing cost. Moreover, during the manufacturing and assembly process, it is easy to deform and generate cumulative errors, and such errors will greatly reduce the precision of the processed products for precision machinery.

In view of the above, in order to provide a structure different from the conventional technology and to improve the above disadvantages, the inventors have accumulated many years of experience and continuous development and improvement, and the present invention has been produced.

An object of the present invention is to provide an integrally formed transmission seat assembly structure, which can solve the problems of high manufacturing cost, easy deformation and cumulative error of the conventional transmission seat assembly, and can effectively reduce the production cost and reduce the machining error. Thereby improving the precision of the processed product.

For the above purposes, the transmission base assembly of the present invention comprises a base, a connecting portion and an upper cover, wherein the base is coupled to the slider of a linear actuator, and the connecting portion is preceded by the base. The rear cover extends upwardly, and the upper cover includes an upper cover portion and a support portion. A space for connecting the left cover and the right portion is formed between the upper cover portion and the support portion, and the support portion is extended upward from the connecting portion, and the support portion is formed. The top end has a left guiding portion and a right guiding portion.

In implementation, the present invention further includes a left positioning member and a right positioning member. The bottom surface of the left end of the base has a left groove for correspondingly connecting the left positioning member, and the bottom surface of the right end of the base has a right groove for corresponding Connect the right positioning piece. The left positioning member includes a left positioning portion and a left locking portion. The left positioning portion is received in the left groove, the left locking portion is locked on the left side of the base, and the right positioning member includes a right positioning portion and a right locking portion, the right positioning portion is accommodated in the right groove, and the right locking portion is locked to the right side of the base.

In implementation, the front end of the base is provided with a plurality of positioning portions with spaces before the base, and the base The rear end is provided with a plurality of positioning portions after the interval for positioning and being connected above the slider.

In implementation, the base, the connecting portion and the upper cover are formed in an I-shape.

In order to further understand the present invention, the specific embodiments of the present invention and the effects achieved thereby are described in detail below with reference to the drawings and drawings.

1‧‧‧Drive seat assembly

2‧‧‧Base

21‧‧‧Left groove

22‧‧‧Right groove

23‧‧‧ screw holes

24‧‧‧Front Positioning Department

25‧‧‧ Rear Positioning Department

3‧‧‧Connecting Department

4‧‧‧Upper cover

41‧‧‧Upper Department

42‧‧‧Support

421‧‧‧Left guide

422‧‧‧Right guide

43‧‧‧ Space

5‧‧‧ left positioning piece

51, 61‧‧‧ round holes

52‧‧‧Left lock

53, 63‧‧‧ 凹凸 block

54‧‧‧Left positioning

6‧‧‧right positioning parts

62‧‧‧right lock

64‧‧‧Right positioning

9‧‧‧ screws

91‧‧‧ Slider

92‧‧‧Dust tape

93‧‧‧toothed belt

A‧‧‧linear actuator

B‧‧‧ shaft

c‧‧‧Drive seat assembly

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded view of the preferred embodiment of the present invention.

Figure 2 is a schematic cross-sectional view of a preferred embodiment of the present invention.

Figure 3 is a side elevational view of a preferred embodiment of the invention.

Figure 4 is a schematic perspective view of a preferred embodiment of the present invention assembled on a linear actuator.

Figure 5 is a perspective view of a conventional linear actuator.

Referring to FIG. 1 , a preferred embodiment of the transmission base assembly 1 of the present invention includes a base 2 , a connecting portion 3 , an upper cover 4 , a left positioning member 5 and a right positioning member 6 . . The transmission base assembly 1 is substantially rectangular parallelepiped. In the embodiment, the transmission base assembly 1 defines its left and right ends in a long direction, and defines its front and rear ends in a short direction.

Referring to Figures 1 and 2, the base 2 is generally in the shape of a flat plate extending left and right, and the bottom surface of the left end of the base 2 has a long-shaped left recess 21 which is recessed upward, and the right end of the base 2 The bottom surface has a long-shaped right groove 22 which is recessed upward, and the left groove 21 and the right groove 22 are symmetrically formed at the left and right ends of the base 2. A plurality of screw holes 23 are respectively formed on the left end side and the right end side of the base 2. The front end surface of the pedestal 2 is provided with a plurality of spaced intervals, and the vacant groove is recessed away from the front end surface, and the vacant groove is made For the front positioning portion 24, the rear end surface of the base 2 is provided with a plurality of spaced intervals, and the notch is recessed away from the rear end surface, and the notch is used as the rear positioning portion 25.

The connecting portion 3 is a rectangular body extending substantially leftward and rightward, and is formed by extending from a central position between the front end and the rear end of the susceptor 2. The upper cover 4 includes an upper cover portion 41 and a support portion 42. The upper cover 4 is substantially a rectangular body extending left and right. As shown in FIG. 3, the upper cover portion 41 is substantially inverted U-shaped, and the support portion 42 is formed by extending from the top end of the connecting portion 3, and is at the top end of the support portion 3 and the upper cover portion 41. A long strip-shaped space 43 is formed between the left and right sides. When the base 2, the connecting portion 3 and the upper cover 4 are integrally formed by milling, aluminum extrusion or casting, they are in an I-shape. The top end of the support portion 3 is a continuous plane, and the central position of the top end of the support portion 3 is a horizontal surface, and the left end and the right end of the horizontal surface are inclined surfaces extending downward respectively, and the inclined surface of the left end is used as the left guide. The portion 421 has an inclined surface at the right end as a right guiding portion 422.

As shown in FIG. 1 , the left positioning member 5 includes a rectangular block that is standing upright and a rectangular piece that extends horizontally outward from one side of the rectangular block away from the side surface. The rectangular block is provided with two horizontal directions. The circular hole 51 is a left locking portion 52; the top surface of the rectangular piece is formed with a tooth-shaped uneven piece 53 as a left positioning portion 54. The right positioning member 6 includes a rectangular block that is standing upright and a rectangular piece that extends horizontally outward from one side of the rectangular block away from the side surface. The rectangular block is provided with two horizontal holes 61 extending through the horizontal direction. The block is defined as a right locking portion 62; the top surface of the rectangular piece is formed with a tooth-shaped uneven piece 63 as a right positioning portion 64.

Therefore, as shown in FIGS. 1 and 4, when the present invention is assembled on a linear actuator, the positioning portion 24 and the rear end surface of the base 2 are positioned in front of the front end surface of the base 2 with the screws 9 respectively. 25 is positioned above the two sliders 91 by locking; when a dustproof belt 92 passes through the top of the support portion 42 When the space 43 between the upper cover portion 41 and the upper cover portion 41 is guided, the left guide portion 421 and the right guide portion 422 are guided to move smoothly to the left and right sides; and when the left positioning portion 54 of the left positioning member 5 is accommodated The two screws are respectively inserted into the two circular holes 51 of the left locking portion 52 to be locked to the screw holes 23 of the left end surface of the base 2, and the right positioning portion 64 of the right positioning member 6 is received. In the right groove 22, when the two screws respectively pass through the two circular holes 61 of the right locking portion 62 to be locked to the screw holes 23 of the right end surface of the base 2, the toothed concave and convex blocks of the left positioning portion 54 can be The corresponding toothed belt 63 is connected to one end of the toothed belt 93, and the toothed concave and convex block 63 of the right positioning portion 64 is correspondingly engaged with the other end of the toothed belt 93, so that the toothed belt 93 is firmly connected to the two ends of the base 2 In order to drive the base 2, the connecting portion 3 and the upper cover 4 to move left and right.

Therefore, the present invention has the following advantages:

1. The base, the connecting portion and the upper cover of the invention are processed by integral molding, so that the production cost can be effectively reduced, and the cumulative error generated by the conventional components in the manufacturing and assembly process can be avoided. Improve the precision of processed products.

2. After the base, the connecting portion and the upper cover of the invention are integrally formed, the structure has a stable structure, so that the deformation of the conventional components or the deformation caused by the uneven locking force during assembly can be effectively avoided. Phenomenon to extend the life.

In summary, according to the above disclosure, the present invention can achieve the intended purpose, and provide a transmission that not only can effectively reduce the production cost, make the structure more stable, improve the precision of the processed product, and can prolong the service life. The seat assembly is of great value for industrial use, and the invention patent application is filed according to law.

1‧‧‧Drive seat assembly

2‧‧‧Base

22‧‧‧Right groove

23‧‧‧ screw holes

24‧‧‧Front Positioning Department

25‧‧‧ Rear Positioning Department

3‧‧‧Connecting Department

4‧‧‧Upper cover

41‧‧‧Upper Department

43‧‧‧ Space

5‧‧‧ left positioning piece

51, 61‧‧‧ round holes

52‧‧‧Left lock

53, 63‧‧‧ 凹凸 block

54‧‧‧Left positioning

6‧‧‧right positioning parts

62‧‧‧right lock

64‧‧‧Right positioning

Claims (5)

A transmission base assembly defines left and right ends in a long direction, and defines front and rear ends in a short direction. The transmission base assembly includes a base, a connecting portion and an upper cover. Attached to a slider of a linear actuator, the connecting portion is formed by extending upwardly between the front and rear ends of the base, and the upper cover includes an upper cover portion and a support portion, the upper cover portion and the support portion A left-to-right communication space is formed between the portions, the support portion is formed by the connection portion extending upward, and the top end of the support portion has a left guiding portion and a right guiding portion. The transmission seat assembly of claim 1, further comprising a left positioning member and a right positioning member, wherein a bottom surface of the left end of the base has a left groove for correspondingly connecting the left positioning member, The bottom surface of the right end of the base has a right groove for correspondingly connecting the right positioning member. The transmission seat assembly of claim 2, wherein the left positioning member comprises a left positioning portion and a left locking portion, the left positioning portion is received in the left groove, the left locking portion The right locking member includes a right positioning portion and a right locking portion, and the right positioning portion is received in the right groove, and the right locking portion is locked to the The right side of the base. The transmission seat assembly of claim 1, wherein the front end of the base is provided with a plurality of positioning portions with a spacing, and the rear end of the base is provided with a plurality of positioning portions with spaces for positioning and positioning. Above the slider. The transmission seat assembly of claim 1, wherein the base, the connecting portion and the upper cover are in an I-shape.