A locking mechanism for a manual quick-change device

Abstract

The utility model discloses a locking mechanism for a manual quick-change device, which is integrated on the handle of the quick-change device body, and includes a bracket body located on one side of the quick-change device body; a first cavity and a second cavity vertically connected to each other are provided inside the bracket body; a locking pin and a first spring are provided in the first cavity, one end of the locking pin extends out of the first cavity, a groove body is axially provided in the middle of the locking pin, and a rotatable body is provided in the groove body; a wedge pin and a second spring are provided in the second cavity, one end of the wedge pin extends out of the second cavity, and the other end has an inclined surface, which extends into the inclined surface of the groove body and contacts the rotatable body. The locking mechanism of the utility model is integrated on the body handle, and the locking pin automatically pops out when locked, which can prevent the side of the clamp from falling off due to misoperation, and the locking mechanism housing can also serve as a handle grip, making the operation more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial robots, in particular to a locking mechanism of a manual quick-change device. Background Art

[0002] At present, in the field of industrial automation, the use of multi-joint robots to clamp molded products in molds to the product placement area has been widely used. The robot's mechanical arm can usually only be equipped with one type of fixture. When different types of workpieces need to be clamped, the corresponding fixture needs to be replaced. In order to improve work efficiency, setting a quick-change device at the end of the mechanical arm is an extremely effective solution. However, most products on the market require an external locking module to achieve locking after closing. The structure is relatively complex, and it is easy to cause the fixture side to fall due to misoperation, and it affects the switching efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a locking mechanism for a manual quick-change device, which makes the operation more convenient.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] The utility model provides a locking mechanism of a manual quick-change device, which is integrated on the handle of the quick-change device body, and includes a bracket main body located on the side of the quick-change device body; a first cavity and a second cavity perpendicular to each other are provided inside the bracket main body, and the second cavity is connected to the middle part of the first cavity; a locking pin and a first spring are provided in the first cavity, one end of the first spring abuts against the inner wall of the first cavity, and the other end is connected to the locking pin, and the end of the locking pin away from the first spring extends out of the first cavity, and a groove body is axially provided at the middle part of the locking pin, and a rotatable body is provided near one end of the first spring; a wedge pin and a second spring are provided in the second cavity, one end of the second spring abuts against the inner wall of the second cavity connected to the first cavity, and the other end is connected to the wedge pin, one end of the wedge pin away from the second spring extends out of the second cavity, and the other end has an inclined surface, which extends into the end of the groove body away from the first spring, and the inclined surface contacts the rotatable body.

[0006] Furthermore, the locking pin is composed of a locking head section, a middle section, and a tail section in sequence, the middle section has the largest diameter, the groove body is located in the middle section, the first spring is nested in the tail section and abuts against the end face of the middle section, the locking head section extends from the first cavity, and the diameter of the middle section is larger than the outlet diameter of the first cavity.

[0007] Furthermore, the rotatable body is one of a rolling bearing, a roller, and a ball.

[0008] Furthermore, a limiting protrusion is provided in the middle of the wedge pin, and the second spring is nested in the wedge pin and abuts against the limiting protrusion.

[0009] Furthermore, the inclination angle of the wedge pin slope is 40° to 50°.

[0010] Furthermore, a groove is provided on the surface of the wedge pin along the axial direction, and a limiting column is provided on the inner wall of the second cavity. The limiting column is inserted into the groove, and the length of the groove is not less than the length of the inclined surface section.

[0011] Furthermore, it also includes a cover body, which is located on the other side of the handle of the machine body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The locking mechanism of the utility model is integrated on the body handle, and the locking pin automatically pops out when locked, which can prevent the side of the clamp from falling due to misoperation. The locking mechanism shell can also serve as a handle grip, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the locking mechanism of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the bracket body in the locking mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the lock pin structure in the locking mechanism of the utility model;

[0017] Figure 4 It is an exploded view of the overall structure of the locking mechanism of the utility model.

[0018] Figure markings: 1-bracket body, 101-first cavity, 102-second cavity, 2-cover body, 3-body handle, 4-body, 401-body groove, 5-locking pin, 501-locking head section, 502-middle section, 503-tail section, 504-groove body, 6-first spring, 7-rotatable body, 8-wedge pin, 9-second spring, 10-limiting column. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the utility model. The examples cited are only used to explain the utility model and are not used to limit the scope of the utility model.

[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 to Figure 4 As shown, a locking mechanism of a manual quick-change device provided in this embodiment includes a bracket body 1 and a cover body 2, which are installed on a handle 3 of the quick-change device body. The bracket body 1 is located on one side of the quick-change device body 4, and the cover body 2 is located on the other side.

[0023] A first cavity 101 and a second cavity 102 are perpendicular to each other inside the bracket body 1. One end of the first cavity 101 is closed, and the other end has a hole connected to the outside; one end of the second cavity 102 has a hole connected to the middle of the first cavity 101, and the other end has a hole connected to the outside.

[0024] A locking pin 5 and a first spring 6 are arranged in the first cavity 101. The locking pin 5 is composed of a locking head section 501, a middle section 502 and a tail section 503 in sequence. The diameter of the middle section 502 is the largest and is larger than the diameter of the outlet hole of the first cavity 101. The locking pin 5 can slide up and down along the first cavity 101, and the locking head section 501 can extend from the outlet hole of the first cavity 101. The middle section 502 is axially provided with a groove body 504, and a rotatable body 7 is arranged in the groove body 504 near the tail section 503. The rotatable body 7 can be a rolling bearing, a roller or a ball, preferably a rolling bearing. The first spring 6 is nested in the tail section 503, one end of which abuts against the inner wall of the closed end of the first cavity 101, and the other end abuts against the end face of the middle section 502.

[0025] A wedge pin 8 and a second spring 9 are provided in the second cavity 102, and the wedge pin 8 can slide left and right along the second cavity 102; one end of the wedge pin 8 with an inclined surface extends into the first cavity 101 and is embedded in the groove body 504, and the inclined surface contacts the lower part of the rotatable body 7, and the rotatable body 7 can roll along the inclined surface to push the locking pin 5 to slide up and down along the first cavity 101; the other end of the wedge pin 8 extends out from the exit hole of the second cavity 102; a limiting protrusion is provided in the middle of the wedge pin 8, and the second spring 9 is embedded in the wedge pin 8, one end abuts against the limiting protrusion, and the other end abuts against the inner wall of the second cavity 102 connecting to the first cavity 101; the inclination angle of the inclined surface of the wedge pin 8 is 40° to 50°, preferably 45°; a groove is also provided on the surface of the wedge pin 8 along the axial direction, and the length of the groove is not less than the length of the inclined surface section of the wedge pin 8, and a limiting column 10 is provided on the inner wall of the second cavity 102, and the limiting column 100 is inserted into the groove so that the wedge pin 8 remains stable when sliding.

[0026] When the locking mechanism is locked, the lock pin 5 is inserted into the groove 401 on the quick-change device body 4 under the action of the first spring 6, and the handle cannot be rotated at this time. When unlocking is required, hold the handle, press the wedge pin 8 to slide to the right, and the rotatable body 7 rolls along the inclined surface, pushing the lock pin 5 to slide upward along the first cavity 101, and the lock head section 501 is disengaged from the body groove 401 to unlock, and the body can be loosened by turning the handle. When locking is required, turn the handle, the second spring 9 pushes the wedge pin 8 to slide to the left, and the first spring 6 pushes the lock pin 5 to pop out downward. When the lock pin 5 rotates to the body groove 401, the lock head section 501 pops into the body groove 401 to lock.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking mechanism for a manual quick-change device, characterized in that: The locking mechanism is integrated on the handle of the quick-change device body, and includes a bracket main body located on the side of the quick-change device body; a first cavity and a second cavity perpendicular to each other are provided inside the bracket main body, and the second cavity is connected to the middle part of the first cavity; a locking pin and a first spring are provided in the first cavity, one end of the first spring abuts against the inner wall of the first cavity, and the other end is connected to the locking pin, and the end of the locking pin away from the first spring extends out of the first cavity, and a groove body is axially provided in the middle of the locking pin, and a rotatable body is provided in the groove body near one end of the first spring; a wedge pin and a second spring are provided in the second cavity, one end of the second spring abuts against the inner wall of the second cavity connected to the first cavity, and the other end is connected to the wedge pin, the end of the wedge pin away from the second spring extends out of the second cavity, and the other end has an inclined surface, which extends into the end of the groove body away from the first spring, and the inclined surface contacts the rotatable body.

2. The locking mechanism of the manual quick-change device according to claim 1, characterized in that: The locking pin is composed of a locking head section, a middle section, and a tail section in sequence. The middle section has the largest diameter. The groove body is located in the middle section. The first spring is nested in the tail section and abuts against the end face of the middle section. The locking head section extends out from the first cavity. The diameter of the middle section is larger than the outlet diameter of the first cavity.

3. The locking mechanism of the manual quick-change device according to claim 1, characterized in that: The rotatable body is one of a rolling bearing, a roller and a rolling ball.

4. The locking mechanism of the manual quick-change device according to claim 1, characterized in that: A limiting protrusion is provided in the middle of the wedge pin, and the second spring is nested in the wedge pin and abuts against the limiting protrusion.

5. The locking mechanism of the manual quick-change device according to claim 1, characterized in that: The inclination angle of the wedge pin inclined surface is 40° to 50°.

6. The locking mechanism of the manual quick-change device according to claim 1, characterized in that: The wedge pin surface is provided with a groove along the axial direction, and the inner wall of the second cavity is provided with a limiting column, and the limiting column is inserted into the groove, and the length of the groove is not less than the length of the inclined surface section.

7. The locking mechanism of the manual quick-change device according to claim 1, characterized in that: It also includes a cover body, which is located on the other side of the handle of the machine body.

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