CN213731281U - Machining clamp - Google Patents

Abstract

The utility model discloses a machining anchor clamps, comprising a base plate, two sets of positive and negative motors of upper end fixedly connected with of bottom plate, and two sets of positive and negative motors are located the both sides of bottom plate symmetrical relation respectively, every group positive and negative motor's one end is all rotated and is connected with the pivot, pivot through connection has the mount, and the pivot can rotate on the mount, the two sets of drive gear of cylinder surface fixedly connected with of pivot, and two sets of drive gear are located the both sides of mount respectively, every group the drive gear meshing has the rack, the one end fixedly connected with clamp plate of rack, and clamp plate and another group of rack fixed connection. The utility model discloses in, this device simple structure, the maintenance and the dismantlement of being convenient for, when the clamp plate impels, can make the clamp plate impel on the latch smoothly because of the elasticity of spring and the semi-circular structure of latch, when the clamp plate presss from both sides tight object, the right-angle side of latch has the clamp plate that can block to prevent that the clamp plate from loosening.

Description

Machining clamp

Technical Field

The utility model relates to a clamping tool field especially relates to a machining anchor clamps.

Background

A typical fixture consists of: the positioning element, the clamping, guiding or tool setting device, the clamp body, the connecting element and the like. In machining, the workpiece is positioned in the fixture by means of positioning elements, so that the workpiece is in the correct position in the fixture. Different workpieces have different positioning means and therefore different positioning elements. Thus, for a particular workpiece, the position of the workpiece in the fixture is ensured by the locating elements of the fixture to which it is applied.

The existing machining clamp has certain disadvantages when in use, the existing structure is complex at first, inconvenient maintenance is realized, the existing machining clamp is not provided with a reverse-preventing device, and the clamped object is directly loosened when the motor is damaged, so that danger is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a machining clamp.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a machining fixture comprises a bottom plate, wherein two sets of positive and negative motors are fixedly connected to the upper end of the bottom plate and are respectively positioned on two sides of the bottom plate in a symmetrical relation, one end of each set of positive and negative motors is rotatably connected with a rotating shaft, the rotating shaft is in penetrating connection with a fixing frame and can rotate on the fixing frame, two sets of driving gears are fixedly connected to the cylindrical outer surface of the rotating shaft and are respectively positioned on two sides of the fixing frame, each set of driving gears is meshed with a gear strip, one end of the gear strip is fixedly connected with a pressing plate and is fixedly connected with the other set of gear strips, a limiting frame is fixedly connected to the upper end of the bottom plate, a threaded rod is in penetrating connection with one side of the limiting frame, a nut is in threaded connection with the cylindrical outer surface of the threaded rod and is positioned outside the limiting frame, and one end of the threaded rod is fixedly connected with a push plate, and the push pedal is located spacing frame, with the inner wall sliding connection of spacing frame, the push pedal is different from a plurality of group springs of one side fixedly connected with of threaded rod, the one end fixedly connected with fixture block board of spring, and the fixture block board is located spacing frame, and fixture block board and spacing frame inner wall sliding connection, one side fixedly connected with latch of fixture block board.

As a further description of the above technical solution:

the latch is in a quarter circle shape, and the right-angle edge of the latch faces to the center of the card plate.

As a further description of the above technical solution:

one side of the pressing plate close to the clamping block plate is semicircular, and the pressing plate is in contact with the clamping block plate.

As a further description of the above technical solution:

the lower extreme fixedly connected with slider of gear rack, the upper end of bottom plate is provided with four groups of spouts, and spout and gear rack's lower extreme fixed connection's slider sliding connection.

As a further description of the above technical solution:

the positive and negative motor is attached to the limiting frame, and the positive and negative motor blocks a part of the opening of the limiting frame.

As a further description of the above technical solution:

the nut and the threaded rod are made of stainless steel.

The utility model discloses following beneficial effect has:

1. can drive the pivot through positive and negative motor and rotate to drive gear and rotate, drive gear can drive the gear strip and remove about, and then drive the clamp plate and remove and clip and treat the cramping thing, simple structure, be convenient for maintenance and dismantlement.

2. The threaded rod can be driven to move by rotating the nut, so that the push plate is pushed or contracted, the clamping block plate is pushed or contracted, when the pressing plate is pushed, the pressing plate can be smoothly pushed on the clamping teeth due to the elasticity of the spring and the semicircular structure of the clamping teeth, and when the pressing plate clamps an object, the right-angle edge of the clamping teeth can block the pressing plate to prevent the pressing plate from loosening.

Drawings

Fig. 1 is a top view of a machining fixture according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 of a machining jig according to the present invention;

fig. 3 is a front view of the machining fixture provided by the present invention.

Illustration of the drawings:

1. a limiting frame; 2. a nut; 3. a threaded rod; 4. a spring; 5. a chuck plate; 6. pressing a plate; 7. a positive and negative motor; 8. clamping teeth; 9. pushing the plate; 10. a base plate; 11. a gear rack; 12. a rotating shaft; 13. a drive gear; 14. a fixed mount; 15. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a machining clamp comprises a bottom plate 10, wherein two sets of positive and negative motors 7 are fixedly connected to the upper end of the bottom plate 10, the two sets of positive and negative motors 7 are respectively located on two sides of the bottom plate 10 in a symmetrical relation, one end of each set of positive and negative motors 7 is rotatably connected with a rotating shaft 12, the rotating shaft 12 is in penetrating connection with a fixing frame 14, the rotating shaft 12 can rotate on the fixing frame 14, two sets of driving gears 13 are fixedly connected to the outer cylindrical surface of the rotating shaft 12, the two sets of driving gears 13 are respectively located on two sides of the fixing frame 14, each set of driving gears 13 is meshed with a gear strip 11, one end of the gear strip 11 is fixedly connected with a pressing plate 6, the pressing plate 6 is fixedly connected with the other set of gear strips 11, the rotating shaft 12 can be driven to rotate through the positive and negative motors 7, the driving gears 13 are driven to rotate, the gear strips 11 can be driven to move left and right, and then the pressing plate 6 is driven to move to clamp an object to be clamped, the structure is simple, the maintenance and the disassembly are convenient, the upper end of the bottom plate 10 is fixedly connected with a limiting frame 1, one side of the limiting frame 1 is connected with a threaded rod 3 in a penetrating way, the outer surface of a cylinder of the threaded rod 3 is connected with a nut 2 in a threaded way, the nut 2 is positioned on the outer side of the limiting frame 1, one end of the threaded rod 3 is fixedly connected with a push plate 9, the push plate 9 is positioned in the limiting frame 1 and is connected with the inner wall of the limiting frame 1 in a sliding way, one side of the push plate 9, which is different from the threaded rod 3, is fixedly connected with a plurality of groups of springs 4, one end of each spring 4 is fixedly connected with a clamping plate 5, the clamping plate 5 is positioned in the limiting frame 1, the clamping plate 5 is connected with the inner wall of the limiting frame 1 in a sliding way, one side of the clamping teeth 8 are fixedly connected with one side of the clamping plate 5, the threaded rod 3 can be driven to move by rotating the nut 2, so that the push plate 9 can be pushed or contracted, the clamping plate 5 can be pushed or pushed, when the pressing plate 6 is pushed, the pressing plate can be smoothly pushed on the clamping teeth 8 due to the elasticity of the spring 4 and the semicircular structure of the clamping teeth, when the pressing plate 6 clamps an object, the right-angled edge of the latch 8 can block the pressing plate 6 to prevent the pressing plate 6 from loosening.

Latch 8 becomes the quarter circle, and the right angle limit of latch 8 is towards the center of card board 5, one side that clamp plate 6 is close to card board 5 is semi-circular, can make clamp plate 6 can impel when pressing from both sides the object, the right angle limit prevents that clamp plate 6 from returning, and clamp plate 6 and the contact of card board 5, the lower extreme fixedly connected with slider of gear rack 11, the upper end of bottom plate 10 is provided with four group's spout 15, and spout 15 and the lower extreme fixed connection's of gear rack 11 slider sliding connection, positive and negative motor 7 laminates with spacing frame 1, and positive and negative motor 7 blocks the open-ended partly of spacing frame 1, can prevent that card board 5 from leaving spacing frame 1, thereby unable performance, the material that nut 2 and threaded rod 3 are is the stainless steel, can prevent that nut 2 and threaded rod 3 from rustting, influence the use.

The working principle is as follows: an object to be clamped is placed between the two groups of pressing plates 6, the rotating shaft 12 can be driven to rotate by the positive and negative motors 7, thereby driving the driving gear 13 to rotate, the driving gear 13 can drive the gear rack 11 to move left and right, thereby driving the pressing plate 6 to move and clamp the object to be clamped, driving the threaded rod 3 to move by rotating the screw cap 2, thereby the push plate 9 is pushed or contracted, the clamp plate 5 is pushed or contracted, when the press plate 6 is pushed, the press plate 6 can be smoothly pushed on the clamp teeth 8 because of the elasticity of the spring 4 and the semicircular structure of the clamp teeth 8, when the pressing plate 6 clamps an object, the right-angle edge of the latch 8 can block the pressing plate 6 to prevent the pressing plate 6 from loosening, when the clamping mechanism needs to be loosened, the nut 2 is firstly reversed, so that the push plate 9 drives the clamp plate 5 to retreat into the limiting frame 1 through the spring 4 until the clamp teeth 8 loosen the clamp plate 6, and then the positive and negative motor 7 is reversed to loosen the clamp.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. A machining fixture comprises a base plate (10), and is characterized in that: the upper end of the bottom plate (10) is fixedly connected with two sets of positive and negative motors (7), the two sets of positive and negative motors (7) are respectively positioned on two sides of the bottom plate (10) to form a symmetrical relation, each set of positive and negative motors (7) is connected with a rotating shaft (12) in a rotating way, the rotating shaft (12) is connected with a fixing frame (14) in a penetrating way, the rotating shaft (12) can rotate on the fixing frame (14), the outer surface of a cylinder of the rotating shaft (12) is fixedly connected with two sets of driving gears (13), the two sets of driving gears (13) are respectively positioned on two sides of the fixing frame (14), each set of driving gears (13) is meshed with a gear strip (11), one end of the gear strip (11) is fixedly connected with a pressing plate (6), the pressing plate (6) is fixedly connected with another set of gear strips (11), the upper end of the bottom plate (10) is fixedly connected with a limit frame (1), one side of the limit frame (1) is connected with a threaded rod (3) in a penetrating way, the utility model discloses a spacing frame of the pneumatic clamp, including threaded rod (3), cylinder surface threaded connection of threaded rod (3) has nut (2), and nut (2) are located the outside of spacing frame (1), the one end fixedly connected with push pedal (9) of threaded rod (3), and push pedal (9) are located spacing frame (1), with the inner wall sliding connection of spacing frame (1), push pedal (9) are different from one side fixedly connected with a plurality of group springs (4) of threaded rod (3), the one end fixedly connected with card board (5) of spring (4), and card board (5) are located spacing frame (1), and card board (5) and spacing frame (1) inner wall sliding connection, one side fixedly connected with latch (8) of card board (5).

2. A machining jig according to claim 1, wherein: the latch (8) is in a quarter circle shape, and the right-angle edge of the latch (8) faces the center of the block plate (5).

3. A machining jig according to claim 1, wherein: one side of the pressing plate (6) close to the clamping block plate (5) is semicircular, and the pressing plate (6) is in contact with the clamping block plate (5).

4. A machining jig according to claim 1, wherein: the lower extreme fixedly connected with slider of rack (11), the upper end of bottom plate (10) is provided with four groups of spout (15), and spout (15) and the slider sliding connection of the lower extreme fixed connection of rack (11).

5. A machining jig according to claim 1, wherein: the positive and negative motor (7) is attached to the limiting frame (1), and the positive and negative motor (7) blocks a part of an opening of the limiting frame (1).

6. A machining jig according to claim 1, wherein: the nut (2) and the threaded rod (3) are made of stainless steel.

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