Clamping jaw for clamping double-positioning-pin workpiece

Abstract

The utility model belongs to the technical field of clamping devices, and provides a clamping jaw for clamping a double-positioning-pin workpiece, which comprises a driving device and two clamping parts in transmission connection with the driving device, and the side wall of the clamping end of each clamping part is provided with a limiting bulge matched with the side wall of the end part of a positioning through hole arranged on the double-positioning-pin workpiece. The clamping jaw for clamping the double-positioning-pin workpiece is simple in structure, reasonable in design and better in clamping stability.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, specifically to a clamp for clamping workpieces with double locating pins. Background Technology

[0002] A double-locating-pin workpiece is a workpiece that can be positioned using two locating pins, and it has locating through holes that mate with the two locating pins respectively.

[0003] Currently, when clamping workpieces with double locating pins, two clamping components are usually inserted into the locating through hole. The friction between the clamping components and the inner wall of the locating through hole is used to clamp the workpieces with double locating pins, but the clamping stability is poor. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a gripper for clamping workpieces with double locating pins, so as to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides a gripper for clamping a workpiece with double locating pins, including a driving device and two clamping components that are pulsatorically connected to the driving device. The sidewall of the clamping end of the clamping component is provided with a limiting protrusion that cooperates with the end sidewall of the locating through hole provided on the workpiece with double locating pins.

[0006] Furthermore, the clamping component is provided with an air blowing assembly, which is used to blow air onto the positioning pin that mates with the positioning through hole to clean impurities adhering to the positioning pin.

[0007] Furthermore, the air blowing assembly includes an air passage formed on the clamping member and an air blowing hole formed at the clamping end of the clamping member and communicating with the air passage, the air passage being connected to the air blowing device.

[0008] Furthermore, the air blowing device is an air pump or an air tank.

[0009] Furthermore, the positioning pin is provided with a clearance groove, and the cross-section of the clearance groove is larger than the cross-section of the clamping end of the clamping component.

[0010] Furthermore, the driving device is a gripper cylinder.

[0011] Furthermore, the clamping component is connected to the driving device via a base.

[0012] Furthermore, the base is connected to the driving device in a transmission manner, and the clamping component is detachably connected to the base.

[0013] Furthermore, the double locating pin workpiece is a brake caliper.

[0014] The beneficial effects of this utility model are:

[0015] The clamping jaws for holding workpieces with double locating pins provided by this utility model have a simple structure and reasonable design. By providing a limiting protrusion that matches the locating through hole at the clamping end of the clamping component, the stability of clamping is improved. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 A perspective view of a gripper for holding a workpiece with double locating pins, provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 An enlarged view of part A shown;

[0019] Figure 3 for Figure 1 An exploded perspective view of the grippers used to hold a workpiece with double locating pins;

[0020] Figure 4 for Figure 3 An enlarged view of section B is shown below;

[0021] Figure 5 for Figure 1 A perspective view of the gripping component of the clamping jaws used to hold a workpiece with double locating pins.

[0022] Figure label:

[0023] 100. Drive device; 200. Clamping component; 210. Limiting protrusion; 220. Air blowing hole; 300. Base; 400. Double locating pin workpiece; 410. Locating through hole; 500. Locating pin; 510. Alternating groove. Detailed Implementation

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0026] In the description of this application, 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", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first," "second," etc., 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. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] like Figure 1-5 As shown, this utility model provides a gripper for holding a workpiece with two locating pins, wherein the workpiece with two locating pins has two locating through holes 410 for inserting locating pins 500. In this embodiment, the workpiece with two locating pins 400 is a brake caliper.

[0031] The aforementioned gripper for holding the double locating pin workpiece 400 includes a drive device 100 and two gripping components 200 that are pulsatorically connected to the drive device 100. In use, the gripping ends of the gripping components 200 are inserted into the locating through holes 410, and the drive device 100 drives the two gripping components 200 to move closer or further apart to grip or release the double locating pin workpiece 400. These are all existing technologies and will not be described in detail here.

[0032] like Figure 2 , 4 As shown, the clamping end of the clamping component 200 is provided with a limiting protrusion 210 that cooperates with the end side wall of the positioning through hole 410 provided on the double positioning pin workpiece 400. During clamping, the limiting protrusion 210 abuts against the end side wall of the positioning through hole 410, thereby cooperating with each other to improve clamping stability.

[0033] Impurities adhering to the locating pin 500 can affect the fit between the locating pin 500 and the locating through hole 410, resulting in inaccurate positioning of the double-locating pin workpiece 400 and affecting the product assembly quality. Therefore, optionally, the clamping component 200 is provided with an air blowing assembly, which is used to blow air into the locating pin 500 inserted into the locating through hole 410 to clean the impurities adhering to the locating pin 500.

[0034] During the process of the gripper inserting the positioning through hole 410 of the double positioning pin workpiece 400 into the positioning pin 500, or during the process of the clamping component 200 inserting into the positioning through hole 410, air is blown onto the positioning pin 500 by the air blowing component. This removes impurities from the positioning pin 500, thereby improving the positioning stability of the double positioning pin workpiece 400 and thus improving the assembly quality of the double positioning pin workpiece 400. Simultaneously, the compressed air blown by the air blowing component bounces between the positioning pin 500, the inner wall of the positioning through hole 410, and the clamping component 200, further cleaning the clamping component 200 and the inner wall of the positioning through hole 410, resulting in a better and more thorough cleaning effect.

[0035] like Figure 5 As shown, the air blowing assembly includes an air passage formed on the clamping member 200 and an air blowing hole 220 formed at the clamping end of the clamping member 200 and communicating with the air passage. The air passage is connected to the air blowing device. The air blowing device can be an air pump, an air tank, etc.

[0036] When in use, the blowing device provides compressed gas into the air passage to form an airflow, and finally sprays it from the blowing hole 220 towards the positioning pin 500, thereby achieving the purpose of cleaning.

[0037] Specifically, the locating pin 500 is provided with a recessed groove 510 for the clamping component 200 to insert into, so that when the locating pin 500 and the locating through hole 410 are engaged, the clamping operation of the gripper will not be affected. Furthermore, the cross-section of the recessed groove 510 is larger than the cross-section of the clamping end of the clamping component 200, so that after the clamping end of the clamping component 200 is inserted into the recessed groove 510, the clamping component 200 can move radially along the locating through hole 410 within the recessed groove 510, thereby achieving the purpose of clamping and releasing the double-locating pin workpiece 400.

[0038] Of course, the top of the relief groove 510 has a first opening for the clamping component 200 to be inserted into the relief groove 510, and a second opening is provided on one side of the relief groove 510 for the limiting protrusion 210 to extend out of the side wall of the relief groove 510 and cooperate with the end side wall of the positioning through hole 410. Moreover, during gripping, the bottom side wall of the relief groove 510 and the bottom end side wall of the positioning through hole 410 of the double positioning pin workpiece 400 have a gap for the limiting protrusion 210 to extend out from the second opening.

[0039] Preferably, the top of the recessed groove 510 is flared, wider at the top and narrower at the bottom, so that the clamping component 200 can be inserted into the recessed groove 510.

[0040] Optionally, the drive unit 100 is a gripper cylinder.

[0041] Preferably, the clamping component 200 is drivenly connected to the driving device 100 via the base 300. Specifically, the base 300 is drivenly connected to the driving device 100, and the clamping component 200 is detachably connected to the base 300. In this embodiment, the clamping component 200 is detachably connected to the base 300 via bolts, so as to achieve the purpose of replacing the corresponding clamping component 200 according to the inner diameter of the positioning through hole 410.

[0042] Preferably, the locating pin 500 has multiple circular locating arc surfaces 520 to ensure positioning accuracy while reducing the contact area between the locating pin 500 and the sidewall of the locating through hole 410, thereby reducing friction.

[0043] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A gripper for holding a workpiece with double locating pins, comprising a drive device (100) and two gripping components (200) pulverizedly connected to the drive device (100), characterized in that, The clamping end of the clamping component (200) is provided with a limiting protrusion (210) that cooperates with the end side wall of the positioning through hole (410) provided on the double positioning pin workpiece (400).

2. The gripper for holding a workpiece with double locating pins according to claim 1, characterized in that, The clamping component (200) is provided with an air blowing assembly, which is used to blow air onto the positioning pin (500) that cooperates with the positioning through hole (410) to clean impurities adhering to the positioning pin (500).

3. The gripper for holding a workpiece with double locating pins according to claim 2, characterized in that, The air blowing assembly includes an air passage formed on the clamping member (200) and an air blowing hole (220) formed at the clamping end of the clamping member (200) and communicating with the air passage. The air passage is connected to the air blowing device.

4. The gripper for holding a workpiece with double locating pins according to claim 3, characterized in that, The air blowing device is an air pump or an air tank.

5. The gripper for holding a workpiece with double locating pins according to any one of claims 2-4, characterized in that, The positioning pin (500) is provided with a clearance groove (510), and the cross-section of the clearance groove (510) is larger than the cross-section of the clamping end of the clamping component (200).

6. The gripper for holding a workpiece with double locating pins according to any one of claims 1-4, characterized in that, The drive device (100) is a gripper cylinder.

7. The gripper for holding a workpiece with double locating pins according to claim 6, characterized in that, The clamping component (200) is connected to the driving device (100) via the base (300).

8. The gripper for holding a workpiece with double locating pins according to claim 7, characterized in that, The base (300) is connected to the driving device (100) in a transmission connection, and the clamping component (200) is detachably connected to the base (300).

9. The gripper for holding a workpiece with double locating pins according to claim 1, 2, 3, 4, 7 or 8, characterized in that, The double locating pin workpiece (400) is a brake caliper.

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