CN208214868U - A clamp assembly - Google Patents

Abstract

The utility model discloses a clamp assembly, which includes a base plate, a positioning device and a limiting device. A plurality of positioning grooves with T-shaped or dovetail-shaped cross sections are provided on the base plate. The positioning device includes a base movably arranged in the positioning groove, a threaded column longitudinally arranged on the base, a pressure rod sleeved on the threaded column and movable up and down along the threaded column, and a sleeve arranged between the threaded column and the pressure rod. An internal thread matching the threaded column is arranged on the inner wall of the sleeve, and a boss extending above the pressure rod is arranged on the top of the sleeve. The sleeve can move along the threaded column to press the pressure rod on the workpiece, so that the workpiece can be positioned. The utility model can make the positioning device adapt to workpieces of different shapes and sizes by adjusting the position of the base and the orientation of the pressure rod, thereby improving the versatility of the utility model. In addition, the sleeve can protect the threads on the threaded column and reduce the wear of the threaded column.

Description

A fixture assembly

technical field

The utility model relates to a clamp.

Background technique

When machining a workpiece, it is necessary to use a fixture to position the workpiece to avoid movement of the workpiece. For the proofing processing of workpieces such as auto parts, medical equipment parts, mold parts, and product models, due to the small output and the different styles and sizes of the workpieces, the positioning methods of different workpieces are also different. If each workpiece The fixtures are all individually customized, and the cost will be very high. Therefore, it is necessary to improve the structure of the fixture to increase its versatility so as to adapt to different workpieces, thereby reducing the cost.

Utility model content

In order to solve the above problems, the utility model provides a clamp assembly with good versatility.

The technical scheme that the utility model solves its technical problem adopts is:

A fixture assembly for positioning a workpiece, the fixture assembly comprising

A bottom plate, the bottom plate is provided with a number of positioning grooves with T-shaped or dovetail-shaped cross-sections;

A positioning device, the positioning device includes a base movably arranged in the positioning groove, a threaded column arranged longitudinally on the base, a pressing rod sleeved on the threaded column and can move up and down along the threaded column, and a threaded column arranged on the threaded column The sleeve between the pressure rod, the inner wall of the sleeve is provided with an internal thread suitable for the threaded column, and the top of the sleeve is provided with a boss extending above the pressure rod;

A limit device, the limit device includes a first threaded through hole opened on the base and a first limit bolt arranged in the first threaded through hole, the first limit bolt can be along the first thread The through hole is moved to press the end of the first stop bolt to the bottom surface of the positioning groove.

Preferably, the pressure rod is provided with a downwardly extending pressure head post.

Preferably, the indenter column is connected with the pressure rod through screw fit, so that the indenter column can be detached from the pressure rod.

Preferably, a second threaded through hole is opened on the outer wall of the pressure rod, and a second limit bolt is arranged in the second threaded through hole, and the second limit bolt can be positioned along the second threaded through hole. Move to press the second stop bolt against the side wall of the sleeve.

Preferably, at least two installation through holes matching the sleeve are opened on the top surface of the pressure rod.

The beneficial effects of the utility model are: the utility model includes a bottom plate, a positioning device and a limiting device, and a plurality of positioning grooves with T-shaped or dovetail-shaped sections are opened on the bottom plate, and the positioning device includes a base that is movably arranged in the positioning groove. Seat, threaded column arranged longitudinally on the base, pressure rod sleeved on the threaded column and can move up and down along the threaded column, sleeve arranged between the threaded column and the pressure bar, set on the inner wall of the sleeve There is an internal thread suitable for the threaded column, and a boss extending above the pressure rod is provided on the top of the sleeve. The sleeve can move along the threaded column to press the pressure rod on the workpiece, so that the workpiece can be positioned The limiting device includes a first threaded through hole opened on the base and a first limit bolt arranged in the first threaded through hole, the first limit bolt can move along the first threaded through hole to move the first The end of the limit bolt is pressed on the bottom surface of the positioning groove. The utility model can adapt the positioning device to workpieces of different shapes and sizes by adjusting the position of the base and the orientation of the pressure rod, thereby improving the versatility of the utility model. In addition, the sleeve can protect the thread on the threaded post and reduce the wear of the threaded post.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the overall structural representation of the utility model;

Figure 2 is an exploded view of the positioning device.

Detailed ways

Referring to Fig. 1 and Fig. 2, the utility model is a fixture assembly for positioning workpieces, and the fixture assembly includes a bottom plate 1, a positioning device 20 and a limiting device. A plurality of positioning grooves 11 with T-shaped or dovetail-shaped cross-sections are opened on the bottom plate 1 . The positioning device 20 includes a base 21 movably arranged in the positioning groove 11, a threaded column 22 longitudinally arranged on the base 21, a pressing rod 23 sleeved on the threaded column 22 and movable up and down along the threaded column 22, a set The sleeve 24 between the threaded column 22 and the pressure rod 23 is provided with an internal thread that is compatible with the threaded column 22 on the inner wall of the sleeve 24, and an internal thread that extends to the top of the pressure rod 23 is provided on the top of the sleeve 24. The boss 241 and the sleeve 24 can be rotated up and down along the threaded post 22 , and the pressing bar 23 is pressed on the workpiece by the boss 241 , so that the workpiece can be positioned on the bottom plate 1 to limit the movement of the workpiece relative to the bottom plate 1 . The limiting device includes a first threaded through hole 31 provided on the base 21 and a first limiting bolt 32 arranged in the first threaded through hole 31 , the first limiting bolt 32 can be moved along the first threaded through hole 31 Move to press the end of the first limiting bolt 32 on the bottom surface of the positioning groove 11 , so that the base 21 can be positioned on the bottom plate 1 .

During use, according to the shape and size of different workpieces, the positioning device 20 can be adapted to workpieces of different shapes and sizes by adjusting the position of the base 21 and the orientation of the pressure rod 23, which improves the versatility of the utility model. In addition, the sleeve 24 can protect the threads on the threaded post 22 , avoid direct contact between the pressure rod 23 and the threaded post 22 , and reduce wear of the threaded post 22 . For a workpiece with a hole structure on the side, the pressing rod 23 can extend into the hole structure of the workpiece, increasing the contact position between the pressing rod 23 and the workpiece, so as to facilitate the arrangement of the base 21 .

A downwardly extending indenter column 25 is provided on the pressing bar 23 to reduce the contact area between the positioning device 20 and the workpiece. In addition, the indenter column 25 can also be pressed into the recess on the workpiece, further increasing the contact position with the workpiece.

Further, the indenter post 25 is connected with the press bar 23 in a threaded manner so that the indenter post 25 can be detached from the press bar 23, so that the indenter post 25 of different shapes can be replaced according to the shape of the workpiece, which is convenient for the workpiece positioning.

A second threaded through hole 232 is provided on the outer wall of the pressure rod 23, and a second stop bolt is arranged in the second threaded through hole 232. The second stop bolt can move along the second threaded through hole 232 to move the The second limit bolt is pressed on the side wall of the sleeve 24 so as to limit the rotation of the pressing rod 23 so as to facilitate the positioning of the workpiece.

On the top surface of the pressure rod 23, there are at least two installation through holes 231 that are compatible with the sleeve 24, so as to adjust the distance between the end of the pressure rod 23 and the threaded column 22 and the distance between the pressure head column 25 and the threaded column 22. distance to facilitate adjustment of the contact position between the positioning device 20 and the workpiece.

It should be noted that, in FIG. 1 , the number and installation positions of the positioning devices 20 are only examples, and the user can adjust the number and installation positions of the positioning devices 20 as required.

The above-mentioned embodiments are only preferred solutions of the utility model, and the utility model also has other implementation solutions. Those skilled in the art can also make equivalent modifications or replacements without departing from the spirit of the present utility model, and these equivalent modifications or replacements are all included in the scope set by the claims of the present application.

Claims (5)

1. A fixture assembly for locating workpieces, characterized in that the fixture assembly includes A bottom plate (1), the bottom plate (1) is provided with a plurality of positioning slots (11) with T-shaped or dovetail-shaped cross-sections; The positioning device (20), the positioning device (20) includes a base (21) movably arranged in the positioning groove (11), a threaded column (22) arranged longitudinally on the base (21), sleeved on the thread On the post (22) and the compression rod (23) that can move up and down along the threaded post (22), the sleeve (24) that is arranged between the threaded post (22) and the compression bar (23), the sleeve ( 24) The inner wall is provided with an internal thread suitable for the threaded column (22), and the top of the sleeve (24) is provided with a boss (241) extending above the pressure rod (23); A limiting device, the limiting device includes a first threaded through hole (31) provided on the base (21) and a first limiting bolt (32) arranged in the first threaded through hole (31), so The first stop bolt (32) can move along the first threaded through hole (31) to press the end of the first stop bolt (32) to the bottom surface of the positioning groove (11). 2. A clamp assembly according to claim 1, characterized in that: the pressure rod (23) is provided with a pressure head column (25) extending downward. 3. A clamp assembly according to claim 2, characterized in that: the pressure head column (25) is connected with the pressure rod (23) through a threaded fit so that the pressure head column (25) can be Detach from the rod (23). 4. A clamp assembly according to claim 1, characterized in that: a second threaded through hole (232) is opened on the outer wall of the pressure rod (23), and the second threaded through hole (232) A second limit bolt is arranged inside, and the second limit bolt can move along the second threaded through hole (232) to press the second limit bolt on the side wall of the sleeve (24). 5. The clamp assembly according to claim 1, characterized in that: at least two installation through holes (231) matching the sleeve (24) are opened on the top surface of the pressing rod (23).