CN216151771U

CN216151771U - Clamp for machine tool

Info

Publication number: CN216151771U
Application number: CN202122197627.9U
Authority: CN
Inventors: 陈开俊
Original assignee: Guangdong Vocational and Technical College
Current assignee: Guangdong Vocational and Technical College
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-04-01
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a clamp for a machine tool, which comprises: the upper end surface of the workbench is provided with a sliding chute and a first hole; the clamp seat is slidably arranged in the sliding groove, a plurality of second holes which are arranged at intervals are arranged on the clamp seat, and any second hole can move to be aligned with the first hole; the fixture block comprises a limiting part and a butting part, the limiting part can penetrate through the first hole and be inserted into one of the second holes so as to limit the transverse displacement of the fixture seat, and the butting part is used for butting against the workpiece; and the first pressing mechanism is arranged on the clamp seat and is used for matching with the abutting part to clamp two ends of the workpiece together. The first hole is formed in the workbench, the second hole is formed in the clamp seat, the clamping block is inserted into the second hole, so that the transverse displacement of the clamp seat is limited, the bolt is not needed for fixing, the assembly and disassembly are convenient, the plurality of second holes are formed at intervals, the clamping block is inserted into the second holes at different positions, the first pressing mechanism is matched to clamp workpieces with different lengths or widths, and the practicability is high.

Description

Clamp for machine tool

Technical Field

The utility model relates to auxiliary processing machinery, in particular to a clamp for a machine tool.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any process in a process, a device for quickly, conveniently and safely mounting a workpiece, may be referred to as a fixture, such as a welding fixture, an inspection fixture, an assembly fixture, a machine tool fixture, etc., with machine tool fixtures being the most common and often referred to simply as fixtures. When a workpiece is machined on a machine tool, in order to enable the surface of the workpiece to meet the technical requirements of the size, the geometric shape, the mutual position precision with other surfaces and the like specified in a drawing, the workpiece needs to be assembled and clamped firmly before machining, and the existing clamp for the machine tool is fixed on a machining platform of the machine tool through a multi-purpose bolt, is inconvenient to disassemble and assemble and cannot be adjusted according to workpieces with different sizes.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a clamp for a machine tool, which is convenient to disassemble and assemble and can be flexibly adjusted according to workpieces with different sizes.

According to an embodiment of the present invention, a jig for a machine tool includes: the upper end surface of the workbench is provided with a sliding chute and a first hole, and the sliding chute horizontally penetrates through the workbench; the clamp seat is slidably arranged in the sliding groove, a plurality of second holes which are arranged at intervals are arranged on the clamp seat, and any second hole can move to be aligned with the first hole; the fixture block comprises a limiting part and an abutting part fixedly arranged at the upper end of the limiting part, the limiting part can penetrate through the first hole and be inserted into one of the second holes so as to limit the transverse displacement of the fixture seat, and the abutting part is used for abutting against a workpiece; and the first pressing mechanism is arranged on the clamp seat and is used for matching with the abutting part to clamp two ends of a workpiece together.

According to the embodiment of the utility model, the clamp for the machine tool at least has the following technical effects: be used for the sectional fixture seat through setting up the spout, through set up first hole on the workstation and set up the second hole and insert the fixture block on the fixture seat to restriction fixture seat horizontal displacement need not the bolt fastening, and easy dismounting sets up a plurality of second holes through the interval again, thereby through inserting the fixture block in the second hole of different positions, with the work piece of the different length of cooperation first hold-down mechanism chucking or width, and the practicality is strong.

According to some embodiments of the utility model, the two clamp seats are provided, each of the two clamp seats is provided with a first extension plate protruding out of the upper surface of the workbench, and the upper ends of the two first extension plates are fixedly connected through a connecting plate.

According to some embodiments of the utility model, the first extension plate is detachably connected to the connection plate.

According to some embodiments of the utility model, the first pressing mechanism comprises a first pressing bolt and a pressing plate, the pressing plate is movably mounted on the connecting plate and is located on one side, facing the fixture block, of the connecting plate, the first pressing bolt is in threaded connection with the connecting plate, and the first pressing bolt can be screwed to push the pressing plate to move to abut against the workpiece.

According to some embodiments of the utility model, two guide posts are arranged on the pressure plate, and one end of each guide post penetrates through the connecting plate and is connected with a limiting nut.

According to some embodiments of the utility model, the fixture block is detachably and fixedly connected with the workbench, and a second pressing mechanism is mounted on the fixture block and used for pressing the upper surface of the workpiece.

According to some embodiments of the utility model, the stop portion is threadedly connected to the first bore.

According to some embodiments of the utility model, the second pressing mechanism includes a mounting shaft and a second extension plate extending perpendicular to the mounting shaft, the second extension plate being threaded with a second pressing bolt for pressing the upper surface of the workpiece.

According to some embodiments of the utility model, the abutting portion is provided with a vertically extending threaded hole, and the lower end of the mounting shaft is provided with an external thread and is in threaded connection with the abutting portion so as to screw and adjust the height of the second extending plate.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

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

Fig. 1 is a schematic view of a mounting structure of a jig for a machine tool according to an embodiment of the present invention;

fig. 2 is an exploded view of a mounting state of a jig for a machine tool according to an embodiment of the present invention.

Reference numerals:

a table 100, a chute 110, a first hole 120;

a clamp base 200, a second hole 201, a first extension plate 202, a connection plate 210;

the clamping block 300, the limiting part 301, the abutting part 302, the second pressing mechanism 310, the mounting shaft 320, the second extending plate 330 and the second pressing bolt 331;

the pressing device comprises a first pressing mechanism 400, a first pressing bolt 410, a pressing plate 420, a guide post 421 and a limit nut 422.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, a jig for a machine tool according to an embodiment of the present invention includes: the fixture comprises a workbench 100, a fixture seat 200, a fixture block 300 and a first pressing mechanism 400.

Workstation 100 is used for placing the work piece, and workstation 100 up end is equipped with spout 110 and the first hole 120 of vertical extension, and the workstation 100 is run through to spout 110 level, and is concrete, and spout 110 is the T type groove of invering, and the upper end width is less than the lower extreme width.

The clamp seat 200 is slidably mounted in the sliding groove 110, and the sliding groove 110 can limit the vertical displacement of the clamp seat 200, so that the clamp seat 200 is prevented from moving vertically to cause instability when a workpiece is machined; the fixture seat 200 is provided with a plurality of second holes 201 arranged at intervals, the arrangement direction of the second holes 201 is the same as the extending direction of the sliding groove 110, and each second hole 201 can move to be aligned with the first hole 120.

The fixture block 300 comprises a limiting portion 301 and an abutting portion 302 fixedly arranged at the upper end of the limiting portion 301, the limiting portion 301 can penetrate through the first hole 120 and be inserted into one of the second holes 201 to limit the transverse displacement of the fixture seat 200, the abutting portion 302 is used for abutting against a workpiece, the fixture seat 200 can be fixed on the workbench 100 without using fasteners such as bolts and the like, the disassembly and the assembly are convenient, specifically, the limiting portion 301 is a cylinder, and the abutting portion 302 is a square body.

The first pressing mechanism 400 is mounted on the fixture base 200 and is used for matching with the abutting portion 302 to clamp two ends of a workpiece together, so that the upper surface of the workpiece can be machined.

According to the clamp for the machine tool, the sliding groove 110 is used for installing the clamp seat 200, the first hole 120 is formed in the workbench 100, the second hole 201 is formed in the clamp seat 200, and the fixture block 300 is inserted into the first hole 201, so that the transverse displacement of the clamp seat 200 is limited, the bolt is not needed for fixing, the clamp is convenient to assemble and disassemble, the second holes 201 are formed at intervals, the fixture block 300 is inserted into the second holes 201 at different positions, so that workpieces with different lengths or widths can be clamped by matching with the first pressing mechanism 400, and the practicability is high.

Referring to fig. 1 and 2, in some embodiments of the present invention, two fixture seats 200 are provided, and are slidably installed in the two sliding grooves 110, respectively, the two fixture seats 200 are provided to clamp a workpiece more firmly, the two fixture seats 200 are each fixedly provided with a first extension plate 202 protruding from an upper surface of the worktable 100, and upper ends of the two first extension plates 202 are fixedly connected by a connection plate 210, so that when the two fixture seats 200 are inserted into or removed from the sliding grooves 110, a synchronous operation can be achieved, and time is saved.

Referring to fig. 2, in some embodiments of the present invention, the first extension plate 202 is detachably connected to the connection plate 210, so that when one of the clamp seats 200 is damaged, the first extension plate can be easily replaced, specifically, the first extension plate is connected to the bolt, and the first extension plate is easily disassembled.

Referring to fig. 1 and 2, in some embodiments of the present invention, the first pressing mechanism 400 includes a first pressing bolt 410 and a pressing plate 420, the pressing plate 420 is movably mounted on the connecting plate 210 and located on a side of the connecting plate 210 facing the fixture 300, the pressing plate 420 is used for pressing the workpiece, the first pressing bolt 410 is screwed on the connecting plate 210 and penetrates through the connecting plate 210, and the pressing plate 420 is pushed to move and abut against the workpiece by screwing the first pressing bolt 410. It can be understood that a handle is further disposed at one end of the first pressing bolt 410, so as to facilitate the screwing operation of an operator.

Referring to fig. 1 and 2, in some embodiments of the present invention, two guiding pillars 421 are disposed on the pressing plate 420, and one end of each guiding pillar 421 passes through the connecting plate 210 and is connected to a limiting nut 422 for preventing the pressing plate 420 from being separated from the connecting plate 210, and the pressing plate is also easily disassembled.

Referring to fig. 1 and 2, in some embodiments of the present invention, the fixture 300 is detachably and fixedly connected to the worktable 100, and the second pressing mechanism 310 is mounted on the fixture 300, and the second pressing mechanism 310 is used for pressing an upper surface of a workpiece, so that the workpiece can be clamped more firmly, and machining errors can be reduced.

Referring to fig. 1 and 2, in some embodiments of the present invention, the stopper 301 is threadedly coupled to the first hole 120 to facilitate mounting and dismounting of the cartridge 300.

Referring to fig. 1 and 2, in some embodiments of the present invention, the second pressing mechanism 310 includes a mounting shaft 320 and a second extension plate 330 extending perpendicular to the mounting shaft 320, the mounting shaft 320 extends vertically, the second extension plate 330 extends horizontally, a second pressing bolt 331 is threaded on the second extension plate 330, and the second pressing bolt 331 is used for pressing the upper surface of the workpiece to clamp the workpiece more firmly, and it is conceivable that the end of the second pressing bolt 331 is also provided with a handle to facilitate the operator to screw.

Referring to fig. 1 and 2, in some embodiments of the present invention, a vertically extending threaded hole is formed in the abutting portion 302, and an external thread is formed at the lower end of the mounting shaft 320 and is threadedly coupled to the abutting portion 302 to screw and adjust the height of the second extension plate 330, so that the second extension plate 330 can be used to clamp workpieces of different heights, and at the same time, the second extension plate 330 can be rotated to one side by rotating the mounting shaft 320 to avoid interference with the placement of the workpieces.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A jig for a machine tool, characterized by comprising:

the upper end surface of the workbench (100) is provided with a sliding chute (110) and a first hole (120), and the sliding chute (110) horizontally penetrates through the workbench (100);

the clamp seat (200) is slidably mounted in the sliding groove (110), a plurality of second holes (201) which are arranged at intervals are formed in the clamp seat (200), and any second hole (201) can move to be aligned with the first hole (120);

the fixture block (300) comprises a limiting part (301) and an abutting part (302) fixedly arranged at the upper end of the limiting part (301), the limiting part (301) can penetrate through the first hole (120) and be inserted into one of the second holes (201) so as to limit the transverse displacement of the fixture seat (200), and the abutting part (302) is used for abutting against a workpiece;

and the first pressing mechanism (400) is arranged on the clamp seat (200) and is used for matching with the abutting part (302) to clamp two ends of a workpiece together.

2. The jig for a machine tool according to claim 1, wherein the jig base (200) is provided with two, the two jig bases (200) are each provided with a first extension plate (202) protruding from the upper surface of the table (100), and the upper ends of the two first extension plates (202) are fixedly connected by a connecting plate (210).

3. The clamp for machine tools according to claim 2, characterized in that the first extension plate (202) is removably connected to the connection plate (210).

4. The clamp for the machine tool according to claim 2, wherein the first pressing mechanism (400) comprises a first pressing bolt (410) and a pressing plate (420), the pressing plate (420) is movably mounted on the connecting plate (210) and is positioned on one side of the connecting plate (210) facing the fixture block (300), the first pressing bolt (410) is in threaded connection with the connecting plate (210), and the first pressing bolt (410) can be screwed to push the pressing plate (420) to move against a workpiece.

5. The clamp for the machine tool according to claim 4, wherein two guide columns (421) are arranged on the pressure plate (420), and one ends of the guide columns (421) penetrate through the connecting plate (210) and are connected with limiting nuts (422).

6. The clamp for the machine tool according to claim 1, wherein the fixture block (300) is detachably and fixedly connected with the workbench (100), a second pressing mechanism (310) is installed on the fixture block (300), and the second pressing mechanism (310) is used for pressing the upper surface of the workpiece.

7. The jig for a machine tool according to claim 6, wherein the stopper portion (301) is screwed to the first hole (120).

8. The jig for machine tools according to claim 6, wherein the second pressing mechanism (310) includes a mounting shaft (320) and a second extension plate (330) extending perpendicular to the mounting shaft (320), a second pressing bolt (331) is threaded through the second extension plate (330), and the second pressing bolt (331) is used for pressing the upper surface of the workpiece.

9. The jig for machine tools according to claim 8, characterized in that the abutting portion (302) is provided with a vertically extending threaded hole, and the lower end of the mounting shaft (320) is provided with an external thread and is in threaded connection with the abutting portion (302) so as to screw and adjust the height of the second extending plate (330).