Annular part grabbing equipment and annular part machining mold

Abstract

The utility model provides annular part grabbing equipment and an annular part machining mold, the annular part grabbing equipment comprises a positioning assembly, the positioning assembly comprises a positioning structure, and the positioning structure is provided with a first profiling surface; the grabbing assembly comprises a horizontal driving structure and a grabbing structure, the horizontal driving structure is connected with the grabbing structure, the grabbing structure and the positioning structure are correspondingly arranged, the grabbing structure is provided with a second profiling face, and the first profiling face and the second profiling face jointly form a profiling face consistent with the inner wall face of the to-be-grabbed part in shape; the end, away from the horizontal driving structure, of the grabbing structure is provided with a bearing section. According to the technical scheme, the problem that in the annular injection molding part picking process in the prior art, the product percent of pass is low due to part damage is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of parts processing, and in particular to a ring-shaped parts grasping device and a ring-shaped parts processing mold. Background Art

[0002] The injection molding process is widely used in the mass production of non-standard parts due to its fast production rate, high efficiency, and the ability to realize automation of operations.

[0003] Generally, after the injection molding of the part is completed, the part is usually clamped by a clamping jaw, and an inward force is applied to the part to remove the part, or the part is removed by applying an outward force to the part by the clamping jaw so that the tension sleeve of the part is arranged outside the clamping jaw.

[0004] In the prior art, when using a clamping jaw to remove a part, the outer surface of the part is easily scratched by the clamping force of the clamping jaw; and the method of using a clamping jaw to tighten the part on the clamping jaw is likely to cause irreversible deformation of the product, such as CN212193191U. Utility Model Content

[0005] A technical problem to be solved by the present application is that during the picking process of annular injection molded parts, there is a problem of low product qualification rate due to part damage.

[0006] In order to solve the above technical problems, the present application provides a ring-shaped part grasping device and a ring-shaped part processing mold.

[0007] According to the present application, a ring-shaped part grasping device includes: a positioning component, the positioning component includes a positioning structure, the positioning structure has a first contour surface; a grasping component, the grasping component includes a horizontal drive structure and a grasping structure, the horizontal drive structure is connected to the grasping structure, the grasping structure and the positioning structure are arranged correspondingly, the grasping structure has a second contour surface, the first contour surface and the second contour surface together constitute a contour surface consistent with the shape of the inner wall surface of the part to be grasped, and the grasping structure has a supporting section at one end away from the horizontal drive structure.

[0008] In some embodiments, the gripping structure further includes a contouring segment, the second contouring surface is located on the contouring segment, the contouring segment is connected to the supporting segment, and the projection width of the supporting segment along the vertical direction is greater than the projection width of the contouring segment along the vertical direction.

[0009] In some embodiments, the grasping structure also includes a connecting section, which is connected to the contouring section and is located at the end of the contouring section away from the supporting section. The horizontal driving structure includes a slide rail and a slider, the slider is movably connected to the slide rail, and the connecting section is connected to the slider.

[0010] In some embodiments, the gripping structures include two, both gripping structures are connected to the horizontal driving structure, the two supporting sections are arranged in opposite directions, and the two gripping structures have a supporting state that is far away from each other and a waiting state that is close to each other.

[0011] In some embodiments, the positioning assembly further includes a connecting structure, the positioning structure is connected to the connecting structure, the connecting structure is connected to the grabbing assembly, and the connecting structure has an accommodating hole for the grabbing structure to pass through.

[0012] In some embodiments, the connecting structure includes a first connecting part, the positioning structure is connected to the first connecting part, the first connecting part has a limiting hole, the two grasping structures are passed through the limiting hole, and the projection of the limiting hole in the vertical direction is located within the projection of the inner wall of the part to be grasped in the vertical direction.

[0013] In some embodiments, the connection structure further includes a second connection portion, and the second connection portion is fixedly connected to the slide rail.

[0014] In some embodiments, the connection structure further includes a screw, the first connection portion has a first threaded hole that cooperates with the screw, the second connection portion has a second threaded hole that cooperates with the screw, and both ends of the screw are respectively connected to the first threaded hole and the second threaded hole.

[0015] In some embodiments, the width of the connecting segment decreases continuously along a direction from approaching to away from the horizontal driving structure.

[0016] According to another aspect of the present application, a ring-shaped part processing mold is also provided. The ring-shaped part processing mold adopts the above-mentioned ring-shaped part grasping device. The ring-shaped part processing mold includes an annular groove and a force-applying structure. The positioning structure is arranged corresponding to the annular groove, and the force-applying structure is arranged in the annular groove.

[0017] Through the above technical solution, the annular part grasping device provided by the present application is moved to a suitable position after the annular part is processed, so that the first profiling surface is aligned with the annular part to be grasped in the vertical direction. At this time, the vertical projection of the supporting section of the grasping structure is located inside the inner circle of the vertical projection of the annular part. The annular part is placed on the positioning structure, and the annular part is fitted with the first profiling surface. The height of the annular part in the vertical direction is higher than the height of the supporting section in the vertical direction. The horizontal driving structure drives the grasping structure to move in the horizontal direction, and the supporting section moves to the bottom of the annular part. The second profiling surface is fitted with the annular part. At this time, the annular part is subjected to the upward force from the supporting section and is not easily deformed. The technical solution of the present application effectively solves the problem of low product qualification rate caused by part damage in the picking process of annular injection molded parts in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic structural diagram of the ring-shaped parts grasping device disclosed in the first embodiment of the present application is shown;

[0020] Figure 2 Shown Figure 1 A schematic structural diagram of a gripping assembly of a ring-shaped parts gripping device;

[0021] Figure 3 A schematic cross-sectional view of the annular part grasping device disclosed in the second embodiment of the present application is shown.

[0022] Description of reference numerals:

[0023] 10. Positioning assembly; 11. Positioning structure; 111. First contouring surface; 12. Connecting structure; 121. First connecting portion; 1211. Limiting hole; 122. Second connecting portion; 123. Screw; 20. Grabbing assembly; 21. Horizontal drive structure; 211. Slide rail; 212. Slider; 22. Grabbing structure; 221. Second contouring surface; 222. Supporting section; 223. Contouring section; 224. Connecting section. DETAILED DESCRIPTION

[0024] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather encompasses all technical solutions within the scope of the claims.

[0025] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0026] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0028] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0029] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] The ring-shaped part grasping device disclosed in Example 1 of the present application includes: a positioning component 10 and a grasping component 20, the positioning component 10 includes a positioning structure 11, the positioning structure 11 has a first contouring surface 111, the grasping component 20 includes a horizontal driving structure 21 and a grasping structure 22, the horizontal driving structure 21 is connected to the grasping structure 22, the grasping structure 22 is arranged corresponding to the positioning structure 11, the grasping structure 22 has a second contouring surface 221, the first contouring surface 111 and the second contouring surface 221 together constitute a contouring surface consistent with the shape of the inner wall surface of the part to be grasped, and the grasping structure 22 has a supporting section 222 at one end away from the horizontal driving structure 21.

[0032] Using the technical solution of Example 1, after the annular part is processed, the annular part grasping device is moved to a suitable position so that the first contour surface 111 is vertically aligned with the annular part to be grasped. At this time, the vertical projection of the supporting segment 222 of the grasping structure 22 is located within the inner circle of the vertical projection of the annular part. The annular part is then sleeved on the positioning structure 11, the annular part is in contact with the first contour surface 111, and the annular part's vertical height is higher than the vertical height of the supporting segment 222. The horizontal drive structure 21 drives the grasping structure 22 in horizontal motion, the supporting segment 222 moves below the annular part, and the second contour surface 221 is in contact with the annular part. At this time, the annular part is subjected to the upward force from the supporting segment 222 and is less likely to deform. The technical solution of Example 1 effectively solves the problem of low product qualification rate caused by part damage during the picking process of annular injection molded parts in the prior art.

[0033] like Figure 1 and Figure 2 As shown, in the technical solution of embodiment 1, the grasping structure 22 also includes a contouring segment 223, the second contouring surface 221 is located on the contouring segment 223, the contouring segment 223 is connected to the supporting segment 222, and the projection width of the supporting segment 222 along the vertical direction is greater than the projection width of the contouring segment 223 along the vertical direction. After the annular part is sleeved in the appropriate position on the positioning structure 11, the height of the supporting section 222 in the vertical direction is lower than the annular part, and the projection in the vertical direction is located within the projection of the annular part in the vertical direction. The grabbing assembly 20 moves in the horizontal direction under the action of the horizontal driving structure 21. During this process, the supporting section 222 moves to the bottom of the annular part, and the contour section 223 moves close to the inner wall of the annular part until the second contour surface 221 fits the annular part. At this time, the first contour surface 111 and the second contour surface 221 are both in contact with the inner wall of the annular part, and the supporting section 222 is in contact with the bottom of the annular part to support the annular part, ensuring that the annular part will not fall. At the same time, the annular part is not easily deformed under the action of the first contour surface 111 and the second contour surface 221.

[0034] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, the grasping structure 22 further includes a connecting section 224, which is connected to the contouring section 223 and located at the end of the contouring section 223 away from the supporting section 222. The horizontal drive structure 21 includes a slide rail 211 and a slider 212. The slider 212 is movably connected to the slide rail 211, and the connecting section 224 is connected to the slider 212. The horizontal drive structure 21 is pneumatically driven. The slider 212 moves along the slide rail 211, and the connecting section 224 connected thereto moves horizontally along with the slider 212, thereby driving the contouring section 223 and the connecting section 224 to move, thereby changing the supporting state and the waiting state of the supporting section 222. Pneumatic drive consumes less energy, which helps reduce costs.

[0035] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, two gripping structures 22 are included. Both gripping structures 22 are connected to the horizontal drive structure 21. The two supporting segments 222 are arranged in opposite directions. The two gripping structures 22 have a supporting state in which they are separated from each other and a waiting state in which they are close to each other. The arrangement of the two gripping structures 22 ensures that the annular part receives upward support from the two supporting segments 222 during the picking process, ensuring that the force on the annular part is uniform and stable. The size of the supporting segments 222 can also be appropriately reduced. As the supporting segments pass through the annular part, they are less likely to collide with the inner wall of the annular part, thus preventing deformation of the annular part.

[0036] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, the positioning assembly 10 also includes a connecting structure 12. The positioning structure 11 is connected to the connecting structure 12, which is then connected to the gripping assembly 20. The connecting structure 12 has a receiving hole for the gripping assembly 22 to pass through. When the connecting structure 12 is connected to the gripping assembly 20 and the connecting structure 12 is moved, the gripping assembly 20 and the positioning structure 11 move synchronously. When the positioning structure 11 moves to the appropriate position, the gripping assembly 20 is positioned, facilitating part pickup. The provision of the receiving hole provides space for the horizontal movement of the gripping structure 22, preventing obstruction during movement of the gripping structure 22.

[0037] like Figure 1 and Figure 2As shown, in the technical solution of Example 1, the connecting structure 12 includes a first connecting portion 121, the positioning structure 11 is connected to the first connecting portion 121, the first connecting portion 121 has a limiting hole 1211, and the two grasping structures 22 are inserted into the limiting hole 1211. The projection of the limiting hole 1211 in the vertical direction is located within the projection of the inner wall of the part to be grasped in the vertical direction. The size of the limiting hole 1211 is set according to the inner ring size of the annular part. The setting of the limiting hole 1211 limits the travel of the grasping structure 22, preventing the spacing between the two grasping structures 22 from being too large, resulting in the annular part being subjected to a force from the center to the outside, causing the part to deform.

[0038] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, the connecting structure 12 also includes a second connecting portion 122, which is fixedly connected to the slide rail 211. The positioning structure 11 is fixed to the connecting structure 12, and the slide rail 211 is connected to the connecting structure 12. When a part needs to be grasped, the connecting structure 12 is moved. At this time, the positioning structure 11 and the grasping structure 22 are moved together above the part, and the positioning structure 11 is aligned with the part. At this time, the vertical projections of the supporting section 222 and the positioning structure 11 are located inside the inner ring of the annular part, and the projection of the first contour surface coincides with the projection of the inner ring of the annular part, facilitating subsequent part picking. The first connecting portion 121 and the second connecting portion 122 are connected by a connecting rod, which reduces the mass of the entire connecting structure 12 and thereby reduces the cost of the entire annular part grasping device.

[0039] like Figure 3 As shown, the technical solution of the second embodiment differs from the technical solution of the first embodiment in that the connecting structure 12 further includes a screw 123. The first connecting portion 121 has a first threaded hole that mates with the screw 123, and the second connecting portion 122 has a second threaded hole that mates with the screw 123. The two ends of the screw 123 are respectively connected to the first threaded hole and the second threaded hole. When the screw 123 is rotated, the first connecting portion 121 moves in the vertical direction under the action of the threaded transmission, and the positioning structure 11 connected to the first connecting portion also moves in the vertical direction, which facilitates the positioning structure 11 to extend into the annular part for positioning, thereby improving positioning efficiency.

[0040] like Figure 3As shown, in the technical solution of the second embodiment, the width of the connecting section 224 decreases continuously in the direction from approaching to moving away from the horizontal drive structure 21. When the screw 123 is rotated, the first connecting portion 121 moves in the vertical direction, and the limiting hole 1211 located on the first connecting portion 121 moves in the vertical direction accordingly, and the relative position of the first limiting hole 1211 and the connecting section 224 changes. Since the width of the connecting section 224 decreases continuously in the direction from approaching to moving away from the horizontal drive structure 21, while the size of the limiting hole 1211 remains unchanged, the height of the first connecting portion 121 in the vertical direction is adjusted, and the gap between the connecting section 224 and the limiting hole 1211 changes, thereby changing the movement stroke of the grasping structure 22 to meet different working conditions and have greater versatility.

[0041] According to another aspect of the present application, a ring-shaped part processing mold is also provided. The ring-shaped part processing mold adopts the above-mentioned ring-shaped part grasping device. The ring-shaped part processing mold includes an annular groove and a force-applying structure. The positioning structure 11 is arranged corresponding to the annular groove, and the force-applying structure is arranged in the annular groove. A positioning column is provided on the ring-shaped part processing mold, and a positioning hole is provided at the corresponding position of the first connecting portion 121. The positioning hole cooperates with the positioning column. When the positioning column is inserted into the positioning hole, the positioning structure 11 is moved against the inside of the inner ring of the annular groove. At this time, the first contour surface 111 is aligned with the inner wall of the annular groove. The force-applying structure pushes the part upward, and the part is separated from the annular groove and is mounted on the positioning structure 11, completing the part positioning. The force-applying structure pushes the annular part upward, so that the annular part is separated from the annular groove. The above-mentioned positioning method further improves the positioning accuracy and positioning efficiency.

[0042] From the above, we can see that the positioning tooling plate (first connecting part 121) is machined, made of 7075, and its main function is to install the fan-shaped positioning column and limit the opening stroke of the pneumatic finger (horizontal drive structure 21); the mechanical manual plate (second connecting part 122) is machined, made of 7075, and is mainly connected to the manipulator to fix the pneumatic finger; the support column (connecting rod) is machined, made of SUS303, with a diameter tolerance of 0 to -0.02mm, and connects the two tooling plates (first connecting part 121 and second connecting part 122). , cooperate with the positioning slot on the tooling plate; the pneumatic finger is a pneumatic component that provides power for the hook claw (grabbing structure 22), which opens and closes on both sides. Pay attention to the stroke when choosing the model; the special-shaped clamping claw (grabbing structure 22) is a machined part made of SUS303, processed by wire cutting, and the head is polished and rounded to prevent scratches on the product; the annular silicone product is a mold injection molded part with an annular structure, a wall thickness of 2mm, an inner layer of plastic, and an outer layer of softer silicone; the fan-shaped positioning column (positioning structure 11) is a machined part made of SUS303 and is responsible for positioning the product. After the mold is opened, the pneumatic fingers manually installed by the robot are closed and then enter the mold. The tooling positioning columns cooperate with the mold positioning holes, and the fan-shaped positioning columns cooperate with the product. The product is ejected by the mold ejector. The product ejection distance is required to be about 10mm to 12mm to provide space for the supporting clamps to enter. At the same time, the mold ejectors are required to be arranged at the four corners of the frame-shaped product to prevent collision with the clamps and ensure ejection balance. The pneumatic fingers open and the limit holes 1211 are limited to prevent the product from being deformed. The special-shaped clamps enter the bottom of the product and are in a supporting state. The mold ejector (force structure) retreats, the tooling retreats, and the product is taken out of the mold. The difficulty of traditional holding is that the outer silicone structure cannot bear the force, the mold product ejector has too much grip, and the product is easy to fall off. The method of supporting the product makes it easier to demold the product, ensure product yield, and improve the overall utilization of the automation equipment.

[0043] Thus far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions of this application.

[0044] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A ring-shaped parts grasping device, characterized in that: include: A positioning assembly (10), the positioning assembly (10) comprising a positioning structure (11), the positioning structure (11) having a first contoured surface (111); A gripping assembly (20), the gripping assembly (20) comprising a horizontal driving structure (21) and a gripping structure (22), the horizontal driving structure (21) being connected to the gripping structure (22), the gripping structure (22) being arranged corresponding to the positioning structure (11), the gripping structure (22) having a second profiling surface (221), the first profiling surface (111) and the second profiling surface (221) together forming a profiling surface having the same shape as the inner wall surface of a part to be gripped, and the gripping structure (22) having a supporting section (222) at one end away from the horizontal driving structure (21).

2. The ring-shaped parts grasping device according to claim 1, characterized in that: The gripping structure (22) further comprises a contouring section (223), the second contouring surface (221) is located on the contouring section (223), the contouring section (223) is connected to the supporting section (222), and the projection width of the supporting section (222) in the vertical direction is greater than the projection width of the contouring section (223) in the vertical direction.

3. The ring-shaped parts grasping device according to claim 2, characterized in that: The gripping structure (22) further comprises a connecting section (224), wherein the connecting section (224) is connected to the contouring section (223) and is located at one end of the contouring section (223) away from the supporting section (222); the horizontal driving structure (21) comprises a slide rail (211) and a slider (212), wherein the slider (212) is movably connected to the slide rail (211), and the connecting section (224) is connected to the slider (212).

4. The ring-shaped parts grasping device according to claim 1, characterized in that: The gripping structures (22) include two, both of which are connected to the horizontal driving structure (21), and the two supporting sections (222) are arranged in a manner opposite to each other. The two gripping structures (22) have a supporting state that is away from each other and a waiting state that is close to each other.

5. The ring-shaped parts grasping device according to claim 3, characterized in that: The positioning assembly (10) further comprises a connecting structure (12), the positioning structure (11) is connected to the connecting structure (12), the connecting structure (12) is connected to the grabbing assembly (20), and the connecting structure (12) has a receiving hole for the grabbing structure (22) to pass through.

6. The ring-shaped parts grasping device according to claim 5, characterized in that: The connecting structure (12) includes a first connecting portion (121), the positioning structure (11) is connected to the first connecting portion (121), the first connecting portion (121) has a limiting hole (1211), the two grasping structures (22) are arranged in the limiting hole (1211), and the projection of the limiting hole (1211) in the vertical direction is located within the projection of the inner wall of the part to be grasped in the vertical direction.

7. The ring-shaped parts grasping device according to claim 6, characterized in that: The connection structure (12) further includes a second connection portion (122), and the second connection portion (122) is fixedly connected to the slide rail (211).

8. The ring-shaped parts grasping device according to claim 7, characterized in that: The connecting structure (12) further includes a screw (123), the first connecting portion (121) having a first threaded hole cooperating with the screw (123), the second connecting portion (122) having a second threaded hole cooperating with the screw (123), and the two ends of the screw (123) being connected to the first threaded hole and the second threaded hole respectively.

9. The ring-shaped parts grasping device according to claim 8, characterized in that: The width of the connecting section (224) decreases continuously along a direction from approaching to moving away from the horizontal driving structure (21).

10. A ring-shaped parts processing mold, characterized in that: The annular part processing mold adopts the annular part grasping device described in any one of claims 1 to 9, and the annular part processing mold includes an annular groove and a force-applying structure. The positioning structure (11) is arranged corresponding to the annular groove, and the force-applying structure is arranged in the annular groove.

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