A new double-stroke pneumatic clamping mechanism

Abstract

The utility model discloses a novel double -stroke pneumatic clamping mechanism belongs to the technical field of clamp, including clamping frock A and clamping frock B, clamping frock A with clamping frock B all are arranged below the frame, and clamping frock B with the vertical spacing of frame is greater than clamping frock A with the vertical spacing of frame, clamping frock A and clamping frock B top respectively are provided with clamping plate A and clamping plate B, clamping plate A with clamping plate B are on same horizontal line, and one side of clamping plate A with clamping plate B is close to each other and is provided curved surface, the frame is connected on the mechanical arm, the utility model discloses, can change the type fast.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, and in particular relates to a novel double-stroke pneumatic clamping mechanism. Background Technology

[0002] Modern development places increasingly higher demands on the automation level of manufacturing industries. In the field of automated assembly manufacturing technology, robotic grippers are one of the most important assembly processes. With the development of technology, the automation requirements of production lines are increasing, as are the requirements for the use of robotic grippers, and their application scenarios are becoming more widespread. In particular, when a single production line needs to accommodate multiple products, the frequent gripper changeovers significantly impact production cycle time and personnel maintenance costs. Currently, most robotic gripper changeovers on the market rely on changing the gripper plate, and each product corresponds to one workpiece, resulting in high production costs. Therefore, a clamping mechanism that facilitates changeovers is proposed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a novel dual-stroke pneumatic clamping mechanism, which solves the above problems.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel double-stroke pneumatic clamping mechanism, including clamping fixture A and clamping fixture B, both clamping fixture A and clamping fixture B are disposed below the frame, and the vertical distance between clamping fixture B and the frame is greater than the vertical distance between clamping fixture A and the frame. Clamping plate A and clamping plate B are respectively disposed above clamping fixture A and clamping fixture B, clamping plate A and clamping plate B are on the same horizontal line, and the sides of clamping plate A and clamping plate B that are close to each other are provided with curved surfaces. The frame is connected to a robotic arm.

[0005] Beneficial effects

[0006] This utility model provides a novel double-stroke pneumatic clamping mechanism, which has the following advantages compared with the prior art:

[0007] 1. The user lowers the frame using the robotic arm until the clamping points on both sides of the workpiece correspond to clamping fixture A and clamping fixture B respectively. At this point, the user can slide clamping fixture B toward clamping fixture A. After clamping fixture B contacts the clamping point of the workpiece, the user continues to push the workpiece toward clamping fixture A until the clamping point on the other side of the workpiece contacts clamping fixture A. Thus, clamping fixture A and clamping fixture B work together to clamp and position the workpiece. When it is necessary to change the type of workpiece to clamp, the user can lower the frame using the robotic arm to position the workpiece between clamping plate A and clamping plate B. At this point, the user can slide clamping plate B toward clamping plate A, thus working together with clamping plate A to clamp the workpiece. The curved surface design increases the clamping effect of clamping plate A and clamping plate B on complex curved objects, preventing them from slipping. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0009] Figure 2 This is a schematic diagram of another three-dimensional structure of the present invention.

[0010] Figure 3 This utility model Figure 2 An enlarged schematic diagram of structure A in the image.

[0011] Figure 4 This is a side view of the structure of this utility model.

[0012] Figure reference numerals: Frame 101, clamping fixture A201, clamping fixture B202, clamping plate A203, clamping plate B204, connecting frame 205, slide 206, connecting plate 207, cylinder A208, stop block 209, stop cylinder 301, cylinder B302, pressure block 303, pressure block A304, positioning pin 305. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0015] Please see Figures 1-4This invention provides a novel dual-stroke pneumatic clamping mechanism, comprising clamping fixture A201 and clamping fixture B202, both of which are disposed below a frame 101. The vertical distance between clamping fixture B202 and the frame 101 is less than the vertical distance between clamping fixture A201 and the frame 101. Clamping plates A203 and B204 are respectively disposed above clamping fixture A201 and clamping fixture B202. Clamping plates A203 and B204 are on the same horizontal line, and the sides of clamping plates A203 and B204 that are close to each other are provided with curved surfaces. The frame 101 is connected to a robotic arm.

[0016] In the above embodiment, the user lowers the frame 101 using a robotic arm until the clamping points on both sides of the workpiece correspond to clamping fixture A201 and clamping fixture B202 respectively. At this point, the user can slide clamping fixture B202 toward clamping fixture A201. After clamping fixture B202 contacts the clamping point of the workpiece, the user continues to push the workpiece toward clamping fixture A201 until the clamping point on the other side of the workpiece contacts clamping fixture A201, thereby achieving clamping through clamping fixture A201 and clamping... The tooling B202 works together to clamp and position the workpiece. When it is necessary to change the type of workpiece to clamp another workpiece, the user can use the robotic arm to lower the frame 101, so that the workpiece is between the clamping plate A203 and the clamping plate B204. At this time, the user can slide the clamping plate B204 toward the clamping plate A203, so that it works together with the clamping plate A203 to clamp the workpiece. The curved surface setting increases the clamping effect of the clamping plate A203 and the clamping plate B204 on objects with complex curved shapes, and prevents them from slipping.

[0017] Specifically, the frame 101 is provided with a positioning assembly for contacting the clamping fixtures A201 and B202, as well as the clamping plates A203 and B204, with the workpiece. The positioning assembly includes a connecting frame 205, a slide 206, and an alignment assembly. The clamping fixtures A201 and A203 are fixedly connected to the connecting frame 205, the clamping fixtures B202 and B204 are fixedly connected to the slide 206, and the connecting frame 205 is slidably connected to the frame 101, while the slide 206 is fixedly connected to the frame.

[0018] The alignment component is used to align the workpiece.

[0019] Specifically, the frame 101 is provided with a drive assembly for making the connecting frame 205 slide at a uniform speed. The drive assembly includes a connecting plate 207, which is fixedly connected to the connecting frame 205. The connecting plate 207 is also fixedly connected to the output end of the cylinder A208, and the cylinder A208 is fixedly connected to the frame 101.

[0020] In the above embodiment, the user can start the cylinder A208, so that the connecting plate 207 fixedly connected to its output end can start to move linearly in the opposite direction in the horizontal direction along the connection between it and the frame 101. That is, at this time, the connecting plate 207 starts to push the connecting frame 205 fixedly connected to it, so that it starts to move linearly in the horizontal direction toward the slide 206, thereby pushing the clamping fixtures A201 and B202 and the clamping plates A203 and B204 provided thereon to clamp different types of workpieces.

[0021] Specifically, the alignment component includes a stop block 209, which is vertically fixedly connected to the connecting frame 205, and a stop cylinder 301 is horizontally fixedly connected to the stop block 209, with the left end of the stop cylinder 301 located to the right of the left end of the clamping fixture A201.

[0022] In the above embodiment, since the abutment 209 is fixedly connected to the connecting frame 205, when the connecting frame 205 slides toward the slide 206, while the clamping fixture A201 and clamping fixture B202 gradually come into contact with the workpiece, the abutment 209 enables the upper fixedly connected abutment cylinder 301 to simultaneously come into contact with the workpiece. Thus, it cooperates with the clamping fixture A201 and clamping fixture B202 to form a three-point positioning structure for the workpiece, thereby avoiding the clamping fixture A201 and clamping fixture B202 not being on the same horizontal plane, causing the workpiece to tilt toward the side of the clamping fixture A201 which is at the lower point.

[0023] Specifically, the alignment component further includes a pressure block 303 and a pressure block A304. The pressure block 303 is slidably disposed on the connecting frame 205, and the pressure block A304 is slidably disposed on the slide 206. A damping rubber strip is provided at their connection point, and the lower end surfaces of the pressure block 303 and the pressure block A304 are set as smooth planes.

[0024] Specifically, cylinders B302 are vertically mounted above the pressure block 303 and pressure block A304, and the output end of cylinder B302 is vertically downward. Cylinder B302 is fixedly connected to the frame 101.

[0025] In the above embodiment, after clamping plates A203 and B204 contact the workpiece and fix it, the pressure block A304 moves to the position directly below the corresponding cylinder B302. Then, the user can activate the two cylinders B302 to extend the output end of the cylinders B302 and push the pressure blocks A304 and B303 below them to slide downwards to contact the workpiece and press against it, thereby limiting the workpiece and ensuring accurate clamping position.

[0026] Specifically, symmetrical positioning pins 305 are fixedly arranged on the frame 101. The two positioning pins 305 are located between the connecting frame 205 and the slide 206. The positioning pins 305 are used to insert into the positioning holes of the workpiece. When the frame 101 is lowered, the positioning pins 305 can be inserted into the positioning holes of the workpiece to increase the stability of the workpiece in clamping.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0029] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0030] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0031] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0032] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel dual stroke pneumatic clamping mechanism characterized in that, The fixture includes clamping fixture A (201) and clamping fixture B (202). Both clamping fixture A (201) and clamping fixture B (202) are located below the frame (101). The vertical distance between clamping fixture B (202) and the frame (101) is smaller than the vertical distance between clamping fixture A (201) and the frame (101). Clamping plates A (203) and B (204) are respectively provided above clamping fixture A (201) and clamping fixture B (202). Clamping plates A (203) and B (204) are on the same horizontal line. The side of clamping plates A (203) and B (204) that are close to each other is provided with a curved surface.

2. The novel dual-stroke pneumatic clamping mechanism according to claim 1, characterized in that, The frame (101) is provided with a positioning assembly for contacting the clamping fixture A (201) and clamping fixture B (202), as well as the clamping plate A (203) and clamping plate B (204) with the workpiece. The positioning assembly includes a connecting frame (205), a slide (206), and an alignment assembly. The clamping fixture A (201) and clamping plate A (203) are fixedly connected to the connecting frame (205), the clamping fixture B (202) and clamping plate B (204) are fixedly connected to the slide (206), and the connecting frame (205) is slidably connected to the frame (101), and the slide (206) is fixedly connected to the frame. The alignment component is used to align the workpiece.

3. The novel dual-stroke pneumatic clamping mechanism according to claim 2, characterized in that, The frame (101) is provided with a drive assembly for making the connecting frame (205) slide at a uniform speed. The drive assembly includes a connecting plate (207), which is fixedly connected to the connecting frame (205) and fixedly connected to the output end of cylinder A (208), which is also fixedly connected to the frame (101).

4. The novel dual-stroke pneumatic clamping mechanism according to claim 2, wherein, The alignment component includes a stop block (209), which is vertically fixedly connected to the connecting frame (205), and a stop cylinder (301) is horizontally fixedly connected to the stop block (209).

5. The novel dual-stroke pneumatic clamping mechanism according to claim 4, characterized in that, Furthermore, the left end of the abutment (301) is located to the right of the left end of the clamping fixture A (201).

6. The novel dual-stroke pneumatic clamping mechanism according to claim 2, wherein, The alignment component further includes a pressure block (303) and a pressure block A (304). The pressure block (303) is slidably disposed on the connecting frame (205), and the pressure block A (304) is slidably disposed on the slide (206). The lower end surfaces of the pressure block (303) and the pressure block A (304) are set as smooth planes.

7. The novel dual-stroke pneumatic clamping mechanism according to claim 6, characterized in that, A cylinder B (302) is vertically mounted above the pressure block (303) and pressure block A (304), and the output end of the cylinder B (302) is vertically downward. The cylinder B (302) is fixedly connected to the frame (101).

8. The novel dual-stroke pneumatic clamping mechanism according to claim 1, wherein, Positioning pins (305) are symmetrically fixed on the frame (101).

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