TWI449591B - Sliding positioning apparatus - Google Patents

Description

Sliding positioning mechanism

The invention relates to a sliding positioning mechanism, in particular to a sliding positioning mechanism capable of realizing multi-position positioning.

During automatic filming or automatic marking, the workpiece needs to be accurately positioned on the machine. It is common practice to fix a special fixture on the machine and then clamp the workpiece to the fixture. The position of the fixture relative to the machine is determined so that the workpiece can be positioned. However, with this positioning method, the position of the workpiece is relatively fixed and cannot be adjusted, and it is difficult to achieve multi-position positioning. In general, a driving mechanism connected to the special fixture, such as a screw-nut mechanism, or a gear-and-pinion mechanism, can be provided to drive the clamp, and the clamp can be positioned at a plurality of set positions by control of the control system. . However, the above-mentioned mechanism capable of realizing multi-position positioning has a complicated system structure and high cost.

In view of the above situation, it is necessary to provide a sliding positioning mechanism that is simple in structure, convenient in operation, and capable of achieving multi-position positioning.

A sliding positioning mechanism includes a body, a sliding member slidably engaged with the body and slidable in a sliding direction, a coarse positioning member, and a precision positioning assembly. The main body includes a bottom plate and a first side plate and a second side plate respectively fixed to the two sides of the bottom plate. The bottom plate forms a T-shaped chute together with the first side plate and the second side plate, and the sliding member has a T-shaped cross section, and the sliding member has a T-shaped cross section. The utility model comprises a sliding rail portion fitted in the sliding slot. The body is opened along the a plurality of positioning holes arranged in a sliding direction, the coarse positioning member is disposed in one of the positioning holes and cooperates with the sliding member to roughly position the sliding member, and the sliding rail portion of the sliding member is formed along an edge of the first side plate a plurality of positioning grooves arranged in the sliding direction, the bottom plate of the body is provided with a through hole communicating with the sliding slot, and the precise positioning assembly comprises a clamping hole passing through the through hole and cooperating with one of the positioning grooves to accurately position the sliding member And an elastic member that elastically biases the clip in a direction toward the slider.

The coarse positioning member and the precise positioning assembly of the sliding positioning mechanism respectively position and accurately position the sliding member relative to the body, thereby jointly positioning the sliding member, and the structure thereof is relatively simple, and the multi-position positioning of the sliding member can be realized. Moreover, when the positioning groove and the engaging member are not completely aligned, and the deviation is in a small position, the biasing force provided by the elastic member can be relied on, so that the engaging member slides into the positioning groove, so that the engaging member and the positioning The grooves cooperate to facilitate operation.

100‧‧‧Sliding positioning mechanism

11‧‧‧Ontology

12‧‧‧Sliding parts

13‧‧‧ coarse positioning parts

14‧‧‧Precise positioning components

112‧‧‧Positioning holes

121‧‧‧ positioning groove

141‧‧‧Cards

142‧‧‧Flexible parts

113‧‧‧floor

1131‧‧‧Perforation

114‧‧‧First side panel

115‧‧‧ second side panel

116‧‧‧Chute

122‧‧‧Sliding track

123‧‧‧Connecting Department

1412‧‧‧Guide

143‧‧‧ Mounting

144‧‧‧ lever

1413‧‧‧Flange

16‧‧‧blocks

145‧‧‧Handle

1 is a perspective assembled view of a sliding positioning device according to an embodiment of the present invention.

2 is an exploded perspective view of the slide positioning device shown in FIG. 1.

Figure 3 is a cross-sectional view taken along line III-III of Figure 1.

The sliding positioning mechanism of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 to FIG. 3 , the sliding positioning mechanism 100 of the embodiment of the present invention includes a body 11 , a sliding member 12 slidably engaged with the body 11 , a coarse positioning member 13 , and a precision positioning assembly 14 . The sliding member 12 is slidable relative to the body 11 in the sliding direction X. The coarse positioning member 13 and the precise positioning assembly 14 respectively position and accurately position the sliding member 12 relative to the body 11. , thereby co-locating the slider 12.

The body 11 is provided with a plurality of positioning holes 112 arranged along the sliding direction X. The coarse positioning member 13 is disposed through one of the positioning holes 112 and cooperates with the sliding member 12 to coarsely position the sliding member 12. The slider 12 is formed with a plurality of positioning grooves 121 arranged in the sliding direction X. The precision positioning assembly 14 includes a catch 141 that can cooperate with any of the positioning grooves 121 to accurately position the slider 12, and is adjacent to the slider 12. The direction elastically biases the elastic member 142 of the clip 141. When the positioning groove 121 and the engaging member 141 are not completely aligned, and there is a small positional deviation, the biasing force provided by the elastic member 142 can be relied on, so that the engaging member 141 slides into the positioning groove 121 to make the card The connector 141 is engaged with the positioning groove 121. In addition, when the sliding member 12 is pushed and pulled in the sliding direction X, when the engaging member 141 is substantially aligned with any of the positioning grooves 121, the engaging member 141 can be fitted into the positioning groove 121 to achieve positioning. The engaging member 141 and the positioning groove 121 have higher dimensional precision and matching precision, so that the sliding positioning mechanism 100 has higher positioning accuracy.

In this embodiment, the main body 11 includes a bottom plate 113 and a first side plate 114 and a second side plate 115 which are respectively fixed on two sides of the bottom plate 113. The bottom plate 113 and the first side plate 114 and the second side plate 115 both extend in a straight line along the sliding direction X, and together form a T-shaped chute 116.

The slider 12 has a T-shaped cross section, and includes a rail portion 122 that fits in the sliding groove 116 and a connecting portion 123 that is integrally formed with the rail portion 122. The connecting portion 123 is for mounting a workpiece. The positioning groove 121 is defined on the side of the sliding rail portion 122 adjacent to the first side plate 114, and the positioning grooves 121 are equally spaced in the sliding direction X.

The coarse positioning member 13 is a cylindrical pin that abuts against the end of the slider 12 to coarsely position the slider 12.

The cross-section of the engaging member 141 and the positioning groove 121 is rectangular. For the convenience of the clip 141 and The positioning groove 121 is matched, and the end portion of the engaging member 141 opposite to the positioning groove 121 is provided with a guiding portion 1412, so that when the engaging member 141 and the positioning groove 121 are not completely aligned, there is a positional deviation. Under the biasing force provided by the elastic member 142, the engaging member 141 can smoothly slide into the positioning groove 121 along the guiding portion 1412. The guiding portion 1412 may be a rounded portion formed at an end of the engaging member 141.

Further, the precision positioning assembly 14 further includes a mounting seat 143 fixedly coupled to the body 11, a pull rod 144 extending through the mounting base 143, and a handle 145 fixedly coupled to the extended end of the pull rod 144. By providing the handle 145, it is convenient for the user to pull the pull rod 144. The bottom plate 113 of the main body 11 is provided with a through hole 1131 communicating with the sliding groove 116. The engaging member 141 is inserted into the positioning groove 121 through the through hole 1131. One end of the pull rod 144 is fixedly coupled to the engaging member 141, and a flange portion 1413 is formed, and the other end protrudes from the mounting seat 143. In the present embodiment, the engaging member 141 is integrally formed with the pull rod 144.

The elastic member 142 is a coil spring disposed between the flange portion 1413 and the mounting seat 143, so that the latching member 141 can be disengaged from the positioning recess 121 by pulling the pull rod 144. The slide positioning mechanism 100 may further include a stopper 16 disposed at one end of the body 11. The stopper 16 serves to prevent the slider 12 from coming out of the body 11. It can be understood that the pull rod 144 can also be disposed without the flange portion 1413, so that the elastic member 142 abuts between the first side plate 114 of the body 11 and the mounting seat 143.

When the sliding positioning mechanism 100 is used, the pulling member 144 is pulled to disengage the engaging member 141 from the positioning groove 121 and the coarse positioning member 13 is pulled out from the positioning hole 112. At this time, the sliding member 12 is pushed and pulled to make the sliding member 12 Slide along the sliding direction X to a predetermined position, and then insert the coarse positioning member 13 into the positioning hole 112 corresponding to the preset position and resist the sliding member 12 to achieve coarse positioning, and then release the pulling rod 144 to the elastic member 142. Under the action of the pressure, the engaging member 141 is engaged with the corresponding positioning groove 121 to achieve precise positioning. this The sliding positioning mechanism 100 of the invention has a simple structure, convenient operation, and precise positioning.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Sliding positioning mechanism

11‧‧‧Ontology

12‧‧‧Sliding parts

13‧‧‧ coarse positioning parts

14‧‧‧Precise positioning components

112‧‧‧Positioning holes

121‧‧‧ positioning groove

141‧‧‧Cards

142‧‧‧Flexible parts

113‧‧‧floor

1131‧‧‧Perforation

114‧‧‧First side panel

115‧‧‧ second side panel

116‧‧‧Chute

122‧‧‧Sliding track

123‧‧‧Connecting Department

1412‧‧‧Guide

143‧‧‧ Mounting

144‧‧‧ lever

1413‧‧‧Flange

16‧‧‧blocks

145‧‧‧Handle

Claims (8)

A sliding positioning mechanism comprising a body, a sliding member slidably engaged with the body and slidable along a sliding direction, wherein the sliding positioning mechanism further comprises a coarse positioning member and a precision positioning assembly, the body comprising a bottom plate and respectively fixed a first side plate and a second side plate disposed on two sides of the bottom plate, the bottom plate and the first side plate and the second side plate together form a T-shaped sliding groove, the sliding member has a T-shaped cross section, and the sliding member includes a matching groove The sliding portion of the inner portion is provided with a plurality of positioning holes arranged along the sliding direction, the coarse positioning member is disposed in one of the positioning holes and cooperates with the sliding member to roughly position the sliding member, the sliding rail of the sliding member A plurality of positioning grooves arranged along the sliding direction are formed on a side of the first side plate. The bottom plate of the body is provided with a through hole communicating with the sliding slot. The precise positioning component includes the through hole and is positioned with one of the holes. The recess cooperates to accurately position the clip of the slider and resiliently bias the resilient member of the clip in a direction adjacent the slider. The sliding positioning mechanism according to the first aspect of the invention, wherein the end portion of the engaging member that cooperates with the positioning groove is provided with a guiding portion, and the engaging member can be under the biasing force provided by the elastic member. Slide along the guide into the positioning groove. The sliding positioning mechanism according to claim 2, wherein the guiding portion is a rounded portion formed at an end portion of the engaging member and the positioning groove. The sliding positioning mechanism of claim 3, wherein the engaging member and the positioning groove have a rectangular cross section. The sliding positioning mechanism according to claim 1, wherein the plurality of positioning grooves are equally spaced. The sliding positioning mechanism of claim 1, wherein the precision positioning assembly further comprises a mounting fixedly coupled to the body and a pull rod extending through the mounting, the end of the lever The clip is fixedly connected, and the other end protrudes from the mount, and the elastic member is disposed between the body and the mount. The sliding positioning mechanism of claim 1, wherein the sliding positioning mechanism further comprises a stopper fixedly disposed at one end of the body, the stopper for preventing the sliding member from sliding out of the body. The sliding positioning mechanism of claim 1, wherein the coarse positioning member is a cylindrical pin and abuts against an end of the sliding member.