CN217193910U

CN217193910U - Fastening mechanism of machine tool fixture

Info

Publication number: CN217193910U
Application number: CN202123295387.2U
Authority: CN
Inventors: 顾平; 吴义民; 李文浩; 吴辉
Original assignee: Wuhan Haoweili Machinery Co ltd
Current assignee: Wuhan Haoweili Machinery Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-16
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a fastening device of machine tool fixture relates to machine tool fixture technical field, specifically is a fastening device of machine tool fixture, comprising a base plate, first spout has been seted up to the inside of bottom plate, the inside sliding connection of first spout has the connecting block, the one end of connecting block is provided with L shape rack, the other end of connecting block is provided with the anchor clamps case, one side of anchor clamps case is provided with the install bin. This fastening device of machine tool anchor clamps through electric putter, first gear and connecting rack's setting, and the in-process of using can stretch out and draw back through electric putter, drives first gear and two connecting rack and removes, when one of them connecting rack contacted the work piece, under the effect of first gear, can make another connecting rack continue to remove, the centre gripping to the different face on, and played the mesh that makes things convenient for the irregular work piece of centre gripping, reached the purpose that improves centre gripping efficiency.

Description

Fastening mechanism of machine tool fixture

Technical Field

The utility model relates to a machine tool clamp technical field specifically is a machine tool clamp's fastening device.

Background

A machine tool holder is a device on a machine tool for holding a workpiece and guiding a tool. Refers to a jig specifically designed for a certain process of a certain workpiece. Its advantages are compact structure, quick and convenient operation, high machining precision and productivity, long design and manufacture period and high cost. When the product is changed, the clamp will be rejected as no longer usable. Is only suitable for the fixed and large-batch production of products. It is in contact with the positioning references of the workpiece for determining the correct position of the workpiece in the holder, thus ensuring a correct relative position of the workpiece with respect to the tool and the machining movement of the machine tool during machining.

When the existing machine tool fixture is used for clamping irregular workpieces, in order to guarantee clamping firmness, extra gaskets corresponding to the added sections are needed, clamping efficiency is further influenced, meanwhile, the clamping size of the existing machine tool fixture is fixed, workpieces with different sizes are clamped inconveniently, adaptability is poor, and the problems that the existing machine tool fixture is inconvenient to clamp irregular workpieces and poor in adaptability are caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a machine tool clamp's fastening device has solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a fastening device of machine tool fixture, includes the bottom plate, first spout has been seted up to the inside of bottom plate, the inside sliding connection of first spout has the connecting block, the one end of connecting block is provided with L shape rack, the other end of connecting block is provided with the anchor clamps case, one side of anchor clamps case is provided with the install bin, the inside of install bin is provided with electric putter, electric putter's expansion end is provided with the link, the mounting groove of having seted up of link, the internal rotation of mounting groove is connected with the axostylus axostyle, the diameter of axostylus axostyle is the same with the internal diameter of mounting groove, the surface of axostylus axostyle rotates and is connected with first gear, the surface meshing of first gear has the connecting rack, the surface sliding connection of connecting rack has spacing frame, spacing frame sets up on the inner wall of anchor clamps case.

Optionally, a connecting groove is formed in the middle of the bottom plate, a connecting shaft rod is rotatably connected to the inside of the connecting groove, a second gear is arranged on the outer surface of the connecting shaft rod, and the second gear is meshed with the L-shaped rack.

Optionally, the surface of connecting shaft pole is provided with spacing, the surface of connecting shaft pole has cup jointed spacing ring and can reciprocate along the axis direction of connecting shaft pole, the spacing groove has been seted up to the inside of spacing ring, spacing groove and spacing looks adaptation, the one end of connecting shaft pole is provided with the limiting plate.

Optionally, the surface of spacing ring is provided with the connection frame, the surface of spacing ring is provided with first spring, the one end setting of first spring is on the limiting plate, the upper surface of connection frame is provided with spacing post.

Optionally, the bottom plate and the second gear are provided with limiting holes inside, and the number of the limiting holes on the bottom plate is greater than that of the limiting holes on the second gear.

Optionally, one end of the connecting rack is slidably connected with a control frame, a second spring is arranged inside the control frame, one end of the second spring is arranged on one side of the connecting rack, a trigger block is arranged on the inner wall of the control frame, a control sheet is arranged at one end of the connecting rack, and the position of the control sheet corresponds to the position of the trigger block.

(III) advantageous effects

The utility model provides a fastening device of machine tool clamp possesses following beneficial effect:

1. this fastening device of machine tool anchor clamps through electric putter, first gear and connecting rack's setting, and the in-process of using can stretch out and draw back through electric putter, drives first gear and two connecting rack and removes, when one of them connecting rack contacted the work piece, under the effect of first gear, can make another connecting rack continue to remove, the centre gripping to the different face on, and played the mesh that makes things convenient for the irregular work piece of centre gripping, reached the purpose that improves centre gripping efficiency.

2. This fastening device of machine tool fixture through the cooperation setting of second gear, L shape rack and connection frame, can drive the second gear revolve through rotating the connection frame at the in-process that uses, and then drives L shape rack and remove to adjust the distance between two anchor clamps casees, thereby played the effect of adjusting machine tool fixture centre gripping size, reached the purpose that improves machine tool fixture suitability.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is an enlarged schematic view of the structure of the present invention at A in FIG. 1;

fig. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic side view of the present invention;

fig. 5 is a schematic three-dimensional structure of the present invention.

In the figure: 1. a base plate; 2. a first chute; 3. an L-shaped rack; 4. a clamp box; 5. installing a box; 6. an electric push rod; 7. a connecting frame; 8. a first gear; 9. connecting the racks; 10. a limiting frame; 11. connecting the shaft lever; 12. a second gear; 13. a limiting strip; 14. a limiting ring; 15. a limiting plate; 16. a connecting frame; 17. a first spring; 18. a limiting post; 19. a limiting hole; 20. a control frame; 21. a second spring; 22. a trigger block; 23. and a control sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a fastening mechanism of a machine tool clamp comprises a bottom plate 1, wherein a connecting groove is formed in the middle of the bottom plate 1, a connecting shaft rod 11 is rotatably connected inside the connecting groove, a second gear 12 is arranged on the outer surface of the connecting shaft rod, the second gear 12 is meshed with an L-shaped rack 3, a limiting strip 13 is arranged on the outer surface of the connecting shaft rod 11, a limiting ring 14 is sleeved on the outer surface of the connecting shaft rod 11, the limiting ring 14 can move up and down along the axial direction of the connecting shaft rod 11, a limiting groove is formed in the limiting ring 14 and is matched with the limiting strip 13, a limiting plate 15 is arranged at one end of the connecting shaft rod 11, a connecting frame 16 is arranged on the outer surface of the limiting ring 14, a first spring 17 is arranged on the outer surface of the limiting ring 14, one end of the first spring 17 is arranged on the limiting plate 15, a limiting column 18 is arranged on the upper surface of the connecting frame 16, and the L-shaped rack 3 is matched with the connecting frame 16 through the second gear 12, in the using process, the connecting frame 16 can be rotated to drive the second gear 12 to rotate, and further drive the L-shaped rack 3 to move, so that the distance between the two clamp boxes 4 is adjusted, and the effect of adjusting the clamping size of the machine tool clamp is achieved, and the purpose of improving the adaptability of the machine tool clamp is achieved, the first chute 2 is arranged in the bottom plate 1, the connecting block is connected in a sliding manner in the first chute 2, the L-shaped rack 3 is arranged at one end of the connecting block, the clamp box 4 is arranged at the other end of the connecting block, the mounting box 5 is arranged at one side of the clamp box 4, the electric push rod 6 is arranged in the mounting box 5, the connecting frame 7 is arranged at the movable end of the electric push rod 6, the mounting groove of the connecting frame 7 is formed, the shaft rod is rotatably connected in the mounting groove, the diameter of the shaft rod is the same as the inner diameter of the mounting groove, and the outer surface of the shaft rod is rotatably connected with the first gear 8, the outer surface of the first gear 8 is engaged with a connecting rack 9, the outer surface of the connecting rack 9 is connected with a limiting frame 10 in a sliding manner, the limiting frame 10 is arranged on the inner wall of the fixture box 4, the electric push rod 6, the first gear 8 and the connecting rack 9 are arranged, the electric push rod 6 can stretch and retract in the use process to drive the first gear 8 and the two connecting racks 9 to move, when one connecting rack 9 contacts a workpiece, the other connecting rack 9 can continue to move under the action of the first gear 8 to be clamped on different surfaces, the purpose of conveniently clamping irregular workpieces is achieved, the purpose of improving the clamping efficiency is achieved, the limiting holes 19 are formed in the bottom plate 1 and the second gear 12, the number of the limiting holes 19 in the bottom plate 1 is larger than that of the limiting holes 19 in the second gear 12, one end of the connecting rack 9 is connected with a control frame 20 in a sliding manner, a second spring 21 is arranged in the control frame 20, one end of the second spring 21 is arranged on one side of the connecting rack 9, a trigger block 22 is arranged on the inner wall of the control frame 20, a control sheet 23 is arranged at one end of the connecting rack 9, and the position of the control sheet 23 corresponds to the position of the trigger block 22.

When the device is used, the connecting frame 16 is pulled to extrude the first spring 17 by observing the size of a workpiece, the limiting column 18 is separated from the limiting hole 19 on the second gear 12, then the connecting frame 16 is rotated, the second gear 12 is driven to rotate under the action of the limiting strip 13, the L-shaped rack 3 and the fixture boxes 4 are further driven to slide, the distance between the two fixture boxes 4 is adjusted, then the workpiece is placed between the two fixture boxes 4, the first gear 8 and the two connecting racks 9 are driven to move by extending the electric push rod 6, when the control frame 20 on one connecting rack 9 contacts the workpiece, the first gear 8 rotates along with the continuous extension of the electric push rod 6, under the action of the first gear 8, the other connecting rack 9 can continue to move towards the extending direction of the electric push rod 6, and when the control frame 20 on the other connecting rack 9 also contacts the surface of the workpiece, under the action of the first gear 8, the two connecting racks 9 stop moving relatively, and along with the continuous extension of the electric push rod 6, the second spring 21 is extruded under the action of the connecting racks 9 and the control frame 20, so that the trigger block 22 contacts the control sheet 23, the control sheet 23 is connected to a corresponding control circuit, the electric push rod 6 is closed, and the workpiece is clamped (the control circuit is arranged in the machine tool clamp).

The utility model discloses a theory of operation and beneficial effect: the fastening mechanism of the machine tool clamp is characterized in that through the arrangement of the electric push rod 6, the first gear 8 and the connecting rack 9, when in use, the electric push rod 6 can stretch and retract to drive the first gear 8 and the two connecting racks 9 to move, when one of the connecting racks 9 contacts a workpiece, under the action of the first gear wheel 8, the other connecting rack 9 can be moved continuously, clamped to a different surface, the purpose of conveniently clamping irregular workpieces is achieved, the clamping efficiency is improved, through the matching arrangement of the second gear 12, the L-shaped rack 3 and the connecting frame 16, when in use, the connecting frame 16 can be rotated to drive the second gear 12 to rotate, so as to drive the L-shaped rack 3 to move, thereby adjust the distance between two anchor clamps casees 4 to play the effect of adjusting the lathe anchor clamps centre gripping size, reached the purpose that improves the lathe anchor clamps suitability.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A fastening mechanism for a machine tool clamp, comprising a base plate (1), characterized in that: a first chute (2) is formed in the bottom plate (1), a connecting block is connected to the inside of the first chute (2) in a sliding manner, an L-shaped rack (3) is arranged at one end of the connecting block, a clamp box (4) is arranged at the other end of the connecting block, an installation box (5) is arranged on one side of the clamp box (4), an electric push rod (6) is arranged in the installation box (5), a connecting frame (7) is arranged at the movable end of the electric push rod (6), an installation groove is formed in the connecting frame (7), a shaft rod is rotatably connected to the inside of the installation groove, the diameter of the shaft rod is the same as the inner diameter of the installation groove, a first gear (8) is rotatably connected to the outer surface of the shaft rod, a connecting rack (9) is meshed to the outer surface of the first gear (8), and a limiting frame (10) is connected to the outer surface of the connecting rack (9) in a sliding manner, the limiting frame (10) is arranged on the inner wall of the clamp box (4).

2. A fastening mechanism for a machine tool clamp according to claim 1, wherein: the middle part of the bottom plate (1) is provided with a connecting groove, the inside of the connecting groove is rotationally connected with a connecting shaft lever (11), the outer surface of the connecting shaft lever is provided with a second gear (12), and the second gear (12) is meshed with the L-shaped rack (3).

3. A fastening mechanism for a machine tool clamp according to claim 2, wherein: the surface of connecting axostylus axostyle (11) is provided with spacing (13), the surface of connecting axostylus axostyle (11) has cup jointed spacing ring (14) and can reciprocate along the axis direction of connecting axostylus axostyle (11), the spacing groove has been seted up to the inside of spacing ring (14), spacing groove and spacing (13) looks adaptation, the one end of connecting axostylus axostyle (11) is provided with limiting plate (15).

4. A fastening mechanism for a machine tool clamp according to claim 3, wherein: the surface of spacing ring (14) is provided with coupling frame (16), the surface of spacing ring (14) is provided with first spring (17), the one end setting of first spring (17) is on limiting plate (15), the upper surface of coupling frame (16) is provided with spacing post (18).

5. A fastening mechanism for a machine tool clamp according to claim 1, wherein: limiting holes (19) are formed in the bottom plate (1) and the second gear (12), and the number of the limiting holes (19) in the bottom plate (1) is larger than that of the limiting holes (19) in the second gear (12).

6. A fastening mechanism for a machine tool clamp according to claim 1, wherein: one end of the connecting rack (9) is connected with a control frame (20) in a sliding mode, a second spring (21) is arranged inside the control frame (20), one end of the second spring (21) is arranged on one side of the connecting rack (9), a trigger block (22) is arranged on the inner wall of the control frame (20), a control sheet (23) is arranged at one end of the connecting rack (9), and the position of the control sheet (23) corresponds to the position of the trigger block (22).