Gear flipping and clamping mechanism

Abstract

The present application relates to the technical field of clamps, in particular to a gear turnover clamping mechanism, which comprises a cylinder, a fixed seat, a rack, a gear and a clamp; the output end of the cylinder is connected with the rack; the fixed seat is arranged on the cylinder, and the rack penetrates through the fixed seat; the gear is rotationally connected to the fixed seat, and the gear is engaged with the rack; the clamp is connected to the gear, and when the output end of the cylinder is telescopic, the rack pulls the gear to reciprocating rotation, and drives the clamp to turn over to clamp or loosen the object. The gear turnover clamping mechanism is characterized in that the cylinder pulls the rack on the output end to do the up-down reciprocating telescopic movement, and then drives the gear engaged therewith to do the reciprocating rotation, and the clamp is connected to the gear, the gear rotationally drives the clamp to turn over to clamp or loosen the object, the overall structure is simple, convenient to install and easy to operate, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of clamping technology, specifically to a gear flipping clamping mechanism. Background Technology

[0002] In the machining process, it is often necessary to perform multi-face machining or inspection on the workpiece. This requires the workpiece to be able to be clamped after being flipped on the machining equipment. The clamping mechanism is an auxiliary device for workpiece clamping and is widely used in various machine tools, machining centers and automated production lines. Its function is to clamp the workpiece to the worktable so that different surfaces of the workpiece can be machined or measured.

[0003] Currently, there are various types of flipping clamping mechanisms in the field of machining, which can be mainly divided into manual clamping, pneumatic clamping, hydraulic clamping and electric clamping.

[0004] However, existing flip-clamping mechanisms still suffer from problems such as complex structure, inconvenient assembly, and low operating efficiency in practical applications. Therefore, we propose a gear-driven flip-clamping mechanism. Summary of the Invention

[0005] The purpose of this invention is to provide a gear flipping clamping mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A gear flipping clamping mechanism includes: a cylinder, a fixed base, a rack, a gear, and a clamp; A rack is connected to the output end of the cylinder; The mounting base is disposed on the cylinder, and the rack passes through the mounting base; The gear is rotatably connected to the fixed base, and the gear meshes with the rack; The clamp is connected to the gear, and when the output end of the cylinder extends or retracts, the rack pulls the gear to rotate back and forth, and drives the clamp to flip and clamp / release the object.

[0007] Preferably, the fixed base is provided with a through hole, and the output end of the cylinder extends into the through hole to connect to the rack.

[0008] Preferably, the front surface of the fixing seat is provided with an arc-shaped groove communicating with the through hole, and one side of the gear extends into the arc-shaped groove to mesh with the rack.

[0009] Preferably, both sides of the gear are connected to the clamp via a rotating shaft.

[0010] Preferably, the front surface of the fixing seat is provided with stops on both sides of the arc-shaped groove to limit the rotation shaft.

[0011] Preferably, the arc-shaped groove is provided with a semi-circular groove one on both sides, and the stop block is provided with a semi-circular groove two. After the semi-circular groove one and the semi-circular groove two are engaged, the two ends of the rotating shaft are limited by the limiting bolt.

[0012] Preferably, one end of the clamp is provided with a locking slot, the locking slot is provided with a locking groove, and one end of the rotating shaft is inserted into the locking groove, and the rotating shaft is fixed by contracting the locking slot through the provided locking bolt.

[0013] Preferably, the end of the rotating shaft is flat.

[0014] Preferably, a baffle is bolted to the top of the rack.

[0015] Preferably, the bottom four corners of the fixing seat are fixed to the four corners of the top surface of the cylinder by fixing bolts.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This gear flipping clamping mechanism uses a cylinder to pull the rack on its output end to perform a reciprocating up-and-down extension and retraction motion, which in turn drives the meshing gear on it to rotate reciprocally. A clamp is connected to the gear, and the rotation of the gear drives the clamp to flip and clamp / release the object. Specifically, when the rack extends, the gear drives the clamp to rotate clockwise, thereby clamping the object on the worktable; when the rack retracts, the gear drives the clamp to rotate counterclockwise, thereby releasing the object clamped on the worktable. The overall structure is simple, easy to install, easy to operate, and improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the cylinder and rack in this invention; Figure 3 This is a schematic diagram of the structure of the fixing base in this invention; Figure 4 This is a schematic diagram of the installation structure of the gear and clamp in this invention.

[0018] In the picture: 1. Cylinder; 2. Fixing base; 21. Through hole; 22. Arc groove; 221. Semicircular groove one; 23. Stop block; 231. Semicircular groove two; 232. Limiting bolt; 24. Fixing bolt; 3. Rack; 31. Baffle; 4. Gear; 41. Shaft; 5. Fixture; 51. Locking slot; 52. Locking groove; 53. Locking bolt. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0022] Furthermore, the terms "a" and "b" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "a" or "b" may explicitly or implicitly include one or more of that feature.

[0023] Currently, there are various types of flipping clamping mechanisms in the field of machining, which can be mainly divided into manual clamping, pneumatic clamping, hydraulic clamping and electric clamping.

[0024] However, existing flipping clamping mechanisms still suffer from problems such as complex structure, inconvenient assembly, and low operating efficiency in practical applications.

[0025] Please see Figures 1-4 As shown, the present invention provides a technical solution: A gear flipping clamping mechanism includes: a cylinder 1, a fixed base 2, a rack 3, a gear 4, and a clamp 5; the output end of the cylinder 1 is connected to the rack 3; the fixed base 2 is disposed on the cylinder 1, and the rack 3 passes through the fixed base 2; the gear 4 is rotatably connected to the fixed base 2, and the gear 4 meshes with the rack 3; the clamp 5 is connected to the gear 4, and when the output end of the cylinder 1 extends or retracts, the rack 3 pulls the gear 4 to reciprocate and drives the clamp 5 to flip and clamp / release an object.

[0026] Specifically, this gear-flipping clamping mechanism uses a cylinder 1 to pull a rack 3 on its output end to reciprocate up and down, thereby driving the meshing gear 4 to rotate reciprocally. A clamp 5 is connected to the gear 4, and the rotation of the gear 4 drives the clamp 5 to flip and clamp / release the object. Specifically, when the rack 3 extends, the gear 4 drives the clamp 5 to rotate clockwise, thus clamping the object on the worktable; when the rack 3 retracts, the gear 4 drives the clamp 5 to rotate counterclockwise, thus releasing the object clamped on the worktable. The overall structure is simple, easy to install, easy to operate, and improves production efficiency.

[0027] Preferably, in order to facilitate the engagement of rack 3 and gear 4, the length of the meshing teeth on rack 3 is not less than half the length of the meshing teeth on the side of gear 4 (i.e., not less than half the circumference of gear 4), thereby ensuring that gear 4 can achieve a rotation of 0-90°. In other embodiments, a cylinder 1 with a suitable output stroke can be selected to increase the length of the meshing teeth on rack 3, thereby setting the rotation angle of gear 4 to be greater than 90° to adapt to different working conditions.

[0028] Preferably, for ease of control, cylinder 1 can be connected to a PLC controller on the production equipment. Controlling the opening, closing, extension and retraction stroke of the cylinder through the PLC controller is existing technology and can be fully implemented by those skilled in the art, so it will not be elaborated here.

[0029] In this embodiment, the fixed base 2 is provided with a through hole 21, and the output end of the cylinder 1 extends into the through hole 21 to connect to the rack 3.

[0030] Specifically, the diameter of the through hole 21 is greater than the width (diameter) of the rack 3 and the output end of the cylinder 1, so that the output end of the cylinder can move freely within the through hole 21 when it extends or retracts.

[0031] Preferably, in actual production, lubricating oil can be filled into the through hole 21 as a lubricant to avoid workpiece wear.

[0032] In this embodiment, the front surface of the fixed base 2 is provided with an arc-shaped groove 22 that communicates with the through hole 21, and one side of the gear 4 extends into the arc-shaped groove 22 to mesh with the rack 3.

[0033] Specifically, in this embodiment, the cross-section of the arc groove 22 is a semi-circular groove, and the diameter of the arc groove 22 is larger than the diameter of the gear 4, so that the gear 4 can rotate freely in the arc groove 22.

[0034] Preferably, in actual production, lubricating oil can be filled into the arc groove 22 as a lubricant to avoid wear between the gear 4 and the rack 3.

[0035] In this embodiment, both sides of the gear 4 are connected to the clamp 5 via a rotating shaft 41.

[0036] Specifically, the rotating shaft 41 can serve as a connector for the gear 4 to the clamp 5. On the other hand, it can rotatably connect both sides of the gear 4 to the fixed base 2, thereby pulling the clamp 5 to rotate when the gear 4 rotates, thus achieving the effect of clamping / releasing the object.

[0037] In this embodiment, the front surface of the fixed base 2 is provided with stop blocks 23 on both sides of the arc groove 22 to limit the rotation shaft 41.

[0038] Specifically, the stop 23 can movably connect the gear 4 to the front surface of the fixed base 2, ensuring that the gear 4 rotates while connecting the clamp 5.

[0039] In this embodiment, the arc groove 22 is provided with a semi-circular groove 221 on both sides, and the stop block 23 is provided with a semi-circular groove 231. After the semi-circular groove 231 and the semi-circular groove 221 are engaged, the two ends of the rotating shaft 41 are limited by the limiting bolt 232.

[0040] Specifically, the diameters of the semicircular groove 231 and the semicircular groove 221 are slightly larger than the diameter of the rotating shaft 41, so that the rotating shaft 41 can rotate in the circular groove formed when the two are engaged. This is used to limit the two ends of the rotating shaft 41, so that when the rack 3 pulls the gear 4, it can rotate around the axis of the rotating shaft 41.

[0041] In this embodiment, one end of the clamp 5 is provided with a locking slot 51, and a locking groove 52 is provided between the locking slots 51. One end of the rotating shaft 41 is inserted into the locking groove 52, and the rotating shaft 41 is fixed by contracting the locking slot 51 through the provided locking bolt 53.

[0042] Specifically, by setting a screw hole (not marked in the figure) at one end of the clamp 5, the locking bolt 53 is screwed into the screw hole. When the lower end of the bolt is tightened with the screw hole at the lower part of the locking slot 51, the upper end of the locking bolt 53 will squeeze the locking slot 51, thereby reducing the gap between the slots and clamping and fixing one end of the rotating shaft 41 in the locking groove 52.

[0043] Preferably, the width of the locking slot 51 is 0.5-0.8 mm, which is used to reduce the gap when the locking bolt 53 is tightened, so that one end of the rotating shaft 41 is clamped and fixed in the locking groove 52.

[0044] In this embodiment, the end of the rotating shaft 41 is flat.

[0045] Specifically, the flat end can prevent the shaft 41 from shaking in the locking groove 52 when it rotates. At the same time, in order to match the flat end of the shaft 41, the shape of the locking groove 52 should correspond to it.

[0046] In this embodiment, a baffle 31 is bolted to the top of the rack 3.

[0047] Specifically, the baffle 31 allows the operator to visually see the stroke length of the rack 3 when it is being pulled, thus facilitating its operation.

[0048] In this embodiment, the four bottom corners of the fixed base 2 are fixed to the four corners of the top surface of the cylinder 1 by the fixed bolts 24.

[0049] Specifically, the fixed bolts 24 facilitate the installation of the fixed base 2, and the overall structure is compact and easy to assemble on site.

[0050] Working principle: A cylinder 1 is installed on one side of the worktable, and one end of the clamp 5 extends to the position on the worktable where the object needs to be fixed. The cylinder 1 pulls the rack 3 on its output end to reciprocate up and down, which in turn drives the meshing gear 4 to reciprocate. The two sides of the gear 4 are connected to the clamp 5 through a rotating shaft 41. The rotation of the gear 4 drives the rotating shaft 41 to rotate. The clockwise / counterclockwise rotation of the rotating shaft 41 drives the clamp 5 to flip and clamp / release the object. Specifically, when the rack 3 extends, the gear 4 drives the clamp 5 to rotate clockwise, realizing the action of clamping the object on the worktable, which facilitates the fixation of the object for the next processing step. When the rack 3 retracts, the gear 4 drives the clamp 5 to rotate counterclockwise, realizing the action of releasing the object clamped on the worktable, which is convenient for the operator to remove the object from the worktable. The overall structure is simple, easy to install, easy to operate, and improves production efficiency.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear flipping clamping mechanism, characterized in that, include: Cylinder (1), fixed seat (2), rack (3), gear (4), clamp (5); The output end of the cylinder (1) is connected to a rack (3); The fixed seat (2) is disposed on the cylinder (1), and the rack (3) passes through the fixed seat (2). The gear (4) is rotatably connected to the fixed base (2), and the gear (4) meshes with the rack (3); The clamp (5) is connected to the gear (4), and when the output end of the cylinder (1) extends or retracts, the rack (3) pulls the gear (4) to rotate back and forth, and drives the clamp (5) to flip and clamp / release the object.

2. The gear flipping and clamping mechanism according to claim 1, characterized in that: The fixed base (2) is provided with a through hole (21), and the output end of the cylinder (1) extends into the through hole (21) to connect to the rack (3).

3. The gear flipping and clamping mechanism according to claim 2, characterized in that: The front surface of the fixed base (2) is provided with an arc-shaped groove (22) that communicates with the through hole (21), and one side of the gear (4) extends into the arc-shaped groove (22) and meshes with the rack (3).

4. The gear flipping and clamping mechanism according to claim 1, characterized in that: Both sides of the gear (4) are connected to the clamp (5) via a rotating shaft (41).

5. The gear flipping and clamping mechanism according to claim 4, characterized in that: The front surface of the fixed base (2) is provided with stops (23) on both sides of the arc groove (22) to limit the rotation shaft (41).

6. The gear flipping and clamping mechanism according to claim 5, characterized in that: The arc groove (22) is provided with a semi-circular groove one (221) on both sides, and the stop block (23) is provided with a semi-circular groove two (231). After the semi-circular groove two (231) and the semi-circular groove one (221) are engaged, the two ends of the rotating shaft (41) are limited by the limiting bolt (232).

7. The gear flipping and clamping mechanism according to claim 4, characterized in that: One end of the clamp (5) is provided with a locking slot (51), and a locking groove (52) is provided between the locking slots (51). One end of the rotating shaft (41) is inserted into the locking groove (52), and the rotating shaft (41) is fixed by shrinking the locking slot (51) through the provided locking bolt (53).

8. The gear flipping clamping mechanism according to claim 7, characterized in that: The end of the shaft (41) is flat.

9. The gear flipping and clamping mechanism according to claim 1, characterized in that: The top of the rack (3) is bolted to a baffle (31).

10. The gear flipping clamping mechanism according to claim 1, characterized in that: The bottom four corners of the fixed base (2) are fixed to the four corners of the top surface of the cylinder (1) by the fixed bolts (24).

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