High-lock clamping tool of automatic lathe

Abstract

The utility model discloses a high-lock clamping tool of an automatic lathe. The high-lock clamping tool comprises a mounting seat and a clamping mechanism, the clamping mechanism comprises a gasket, a clamping jaw, a spring and an ejector rod; the gasket is fixed at the bottom of the mounting seat, a central hole is formed in the middle of the gasket, and a plurality of guide grooves which are radially distributed on the periphery of the central hole are formed in the gasket; the clamping jaws are arranged below the guide grooves in a one-to-one mode, the upper ends of the clamping jaws are slidably installed in the corresponding guide grooves, and the inner sides of the lower ends of the clamping jaws protrude inwards to form clamping blocks. The upper end of the ejector rod is arranged between the mounting seat and the gasket, and the lower end of the ejector rod slidably penetrates through the central hole and extends below the gasket; the spring is arranged between the bottom of the mounting base and the bottom of the ejector rod. The automatic feeding device effectively solves the feeding problem of automatic equipment, is simple and reliable in structure, can adapt to high-locking nuts of different specifications, is reliable and stable in feeding, can effectively reduce the failure rate of automatic machining, and improves the machining reliability, and parts cannot fall off when a clamp moves back and forth to a feeding position and a machining position.

Description

Technical Field

[0001] The utility model relates to the technical field of parts clamping, in particular to a high-lock clamping tool for an automatic lathe. Background Art

[0002] When using automated equipment for processing, the loading and unloading of parts is the first issue that needs to be considered. The stability and reliability of loading affect the processing efficiency of the product. At present, in the automated processing of high-lock nuts, the usual method is to use a clamping jaw to clamp the part to be processed and then place it on the machine tool for processing. Conventional clamping jaws are shown in the Chinese utility model patent with announcement number CN221336646U. At that time, because the head end diameter of the high-lock nut is often larger than the diameter of its rod, the clamping jaws of the clamping jaw can only clamp to its head end during the clamping process, making it difficult to achieve stable clamping of its rod. As a result, the high-lock nut is easily loosened during processing, which leads to a high failure rate and low reliability when clamping the high-lock nut with a conventional clamping jaw. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a high-lock clamping tool for automatic lathes with a simple and reliable structure, which is suitable for high-lock nuts of different specifications, and the parts will not fall off when the clamp moves back and forth between the loading position and the processing position. It can reduce the failure rate of automated processing and improve processing reliability.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A high-lock clamping tool for an automatic lathe comprises a mounting seat and a clamping mechanism mounted on the mounting seat and used to clamp a part to be processed; the clamping mechanism comprises a gasket, a clamping jaw, a spring and a push rod; the gasket is fixed to the bottom of the mounting seat, a central hole is provided in the middle of the gasket, and a plurality of guide grooves radially arranged around the periphery of the central hole are provided on the gasket; the clamping jaws are arranged one-to-one below the guide grooves, the upper ends of the clamping jaws are slidably installed in the corresponding guide grooves, and the inner sides of the lower ends of the clamping jaws protrude inward to form a clamping block; the upper end of the push rod is arranged between the mounting seat and the gasket and can move back and forth between the mounting seat and the gasket, and the lower end of the push rod slides through the central hole and extends below the gasket; the spring is arranged between the bottom of the mounting seat and the bottom of the push rod.

[0006] Furthermore, in order to prevent the push rod from being completely pushed under the gasket by the spring when the spring is reset, thereby affecting the subsequent clamping operation, the diameter of the upper end of the push rod is larger than the diameter of the central hole.

[0007] Furthermore, the bottom of the mounting seat is recessed in the middle to form a clearance hole directly above the central hole. The upper end of the push rod and the spring above it are both mounted within the clearance hole, allowing the upper end of the push rod to slide back and forth within the clearance hole. The bottom of the mounting seat is provided with a plurality of radially arranged chute grooves around the periphery of the clearance hole. The chute grooves are arranged one-to-one directly above the guide groove. A slider is slidably disposed within each chute. The lower end of the slider extends downward into the guide groove corresponding to the chute in which it is located and is connected to the clamping claw within the guide groove to form an integrated structure. The integrated structure can slide back and forth along the guide groove under the action of an external force. Optimally, there are three chute grooves evenly distributed on the bottom of the mounting seat. Correspondingly, there are also three sliders, guide grooves, and clamping claws evenly distributed.

[0008] Furthermore, a plurality of single-acting cylinders corresponding to the sliders are provided in the mounting seat. The piston rods of the single-acting cylinders are fixedly connected to their corresponding sliders and can drive the sliders to slide back and forth along the slide grooves, thereby driving the clamps to slide back and forth along the guide grooves.

[0009] Furthermore, in order to facilitate the push rod to stably compress the spring and facilitate the spring to stably push the push rod to reset, a mounting hole is provided at the top end of the push rod, and the lower end of the spring is sleeved in the mounting hole.

[0010] Furthermore, the part to be processed is a rod-shaped part having a head with a diameter larger than that of the rod. The part to be processed is a part such as a high lock nut having a head with a diameter larger than that of the rod.

[0011] Furthermore, a radial clamping portion for clamping the rod of the part to be processed is formed between the clamping blocks of the multiple jaws; an axial clamping portion for clamping the head of the part to be processed is formed between the lower end of the push rod and the upper surface of the clamping block. The combination of radial clamping and axial clamping improves the stability of clamping.

[0012] The utility model effectively solves the feeding problem of automated equipment, has a simple and reliable structure, can adapt to high lock nuts of different specifications, and can feed reliably and stably. Parts will not fall off when the clamp moves back and forth between the feeding position and the processing position, which can effectively reduce the failure rate of automated processing and improve processing reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be described in further detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a structural schematic diagram of the high-lock clamping tooling for the automatic lathe described in the utility model.

[0015] Figure 2 This is a bottom view of the mounting base of the present invention.

[0016] Figure 3This is a front view of the clamping mechanism of the present invention.

[0017] Figure 4 for Figure 3 Cross-sectional view along the AA direction.

[0018] Figure 5 It is a top view of the clamping mechanism of the present invention.

[0019] Figure 6 This is a schematic structural diagram of the clamping jaws of the present invention.

[0020] Figure 7 This is a structural diagram of the gasket described in the utility model.

[0021] As shown in the figure: 1-clamping claw, 11-clamping block, 2-gasket, 21-guide groove, 22-center hole, 3-spring, 4-top rod, 41-mounting hole, 5-mounting seat, 51-slide groove, 52-allowance hole, 6-slider. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The embodiments described are merely a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of this utility model. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose of the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of this utility model without substantially changing the technical content.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. It should be noted that the terms "include", "comprise" or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. Example 1

[0025] like Figure 1 As shown, this embodiment provides a high-lock clamping fixture for an automatic lathe, comprising a mounting base 5 and a clamping mechanism mounted on the mounting base 5 and used to clamp a part to be machined. The part to be machined is a rod-shaped part having a head with a diameter greater than that of the rod. In this embodiment, a high-lock nut is used for the part to be machined.

[0026] like Figures 3 to 7As shown, the clamping mechanism includes a gasket 2, a clamping jaw 1, a spring 3 and a push rod 4; the gasket 2 is fixed to the bottom of the mounting seat 5, and a central hole 22 is provided in the middle of the gasket 2, and three guide grooves 21 are evenly distributed on the periphery of the central hole 22 in a radial shape on the gasket 2, and the outer side of the guide groove 21 penetrates the edge of the gasket 2. The three guide grooves 21 are selected according to the width of the clamping jaw 1. The main function of the gasket 2 is to limit the axial displacement of the push rod 4 to a suitable range; the clamping jaw 1 is arranged one-to-one below the guide groove 21, and the upper end of the clamping jaw 1 is slidably installed in the corresponding guide groove 21, and the inner side of the lower end of the clamping jaw 1 protrudes inward to form a clamping block 11, so that the clamping jaw 1 has an L-shaped structure as a whole, and the top of the clamping block 11 is used to support the bottom surface of the head of the high lock nut, and the inner side of the clamping block 11 is used to clamp the rod of the high lock nut. A radial clamping portion for clamping the rod of the part to be processed is formed between the clamping blocks 11 of the jaws 1. The three jaws 1 are used in a set, and clamping blocks of different shapes and sizes can be selected according to different parts to be processed. The main function of the jaw 1 is to clamp the part to be processed; the lower end of the push rod 4 and the upper surface of the clamping block 11 form an axial clamping portion for clamping the head of the part to be processed. The combination of radial clamping and axial clamping improves the stability of clamping; the upper end of the push rod 4 is arranged between the mounting seat 5 and the gasket 2 and can move back and forth between the mounting seat 5 and the gasket 2. The lower end of the push rod 4 slides through the central hole 22 to extend under the gasket 2, at the upper end of the push rod 4; the spring 3 is arranged between the bottom of the mounting seat 5 and the bottom of the push rod 4, and both ends of the spring 3 are ground flat. The specifications of the spring 3 are selected according to the size of the part to be processed.

[0027] like Figure 1 and Figure 2 As shown, the mounting seat 5 is installed on the robotic arm of the machine tool, and the middle of the bottom of the mounting seat 5 is concave to form a clearance hole 52 located directly above the central hole 22. The upper end of the push rod 4 and the spring 3 above it are both mounted in the clearance hole 52, and the upper end of the push rod 4 can slide back and forth in the clearance hole 52; three slide grooves 51 are provided at the bottom of the mounting seat 5 and are evenly distributed in a radial pattern on the periphery of the clearance hole 52. The slide grooves 51 are arranged one-to-one directly above the guide groove 21, and a slider 6 is respectively slidably arranged in each slide groove 51. The lower end of the slider 6 extends downward into the guide groove 21 corresponding to the slide groove 51 in which it is located and is connected to the clamping claw 1 in the guide groove 21 to form an integrated structure. The integrated structure can slide back and forth along the guide groove 21 under the action of external force (single-acting cylinder). Three single-acting cylinders corresponding to the sliders 6 are provided in the mounting seat 5. The single-acting cylinders are conventional equipment. The piston rods of the single-acting cylinders are fixedly connected to their corresponding sliders 6 and can drive the sliders 6 to slide back and forth along the slide groove 51, thereby driving the clamping jaws 1 to slide back and forth along the guide groove 21.

[0028] Working principle:

[0029] When the robotic arm drives the automatic lathe high-lock clamping tooling to descend as a whole, the upper surface of the head of the part to be processed contacts the lower end surface of the push rod 4 and pushes the push rod 4 to move up and compress the spring 3 until the head of the part to be processed moves above the clamping block 11. At the same time, the rod of the part to be processed is located between the clamping blocks 11 of the three jaws 1. Then the three jaws 1 close and the three clamping blocks 11 close to clamp the part to be processed. When the part is transported to the processing position, the three jaws 1 open, the compressed spring 3 stretches and pushes the push rod 4 down, and the push rod 4 pushes the part out, leaving a clamping position for the fixture of the processing equipment. Example 2

[0030] In order to prevent the push rod 4 from being completely pushed under the gasket 2 by the spring 3 when the spring 3 is reset, thereby affecting the subsequent clamping operation, this embodiment adds the following settings on the basis of embodiment 1:

[0031] The diameter of the upper end of the push rod 4 is larger than the diameter of the central hole 22. The lower end of the push rod 4 contacts the part. The step at the bottom of the upper end limits the axial displacement of the push rod 4 to prevent the push rod 4 from being ejected from the fixture when the compressed spring 3 is released. Example 3

[0032] In order to facilitate the push rod 4 to stably compress the spring 3 and facilitate the spring 3 to stably push the push rod 4 to return to its original position, this embodiment adds the following settings on the basis of embodiment 1 or 2:

[0033] A mounting hole 41 is provided at the top end of the push rod 4 , and the lower end of the spring 3 is sleeved in the mounting hole 41 .

[0034] Other aspects of the present invention that are not described in detail are all conventional technologies known to those skilled in the art.

[0035] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements that are inherent to such process, method, article, or apparatus.

[0036] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A high-lock clamping fixture for an automatic lathe, comprising a mounting base and a clamping mechanism mounted on the mounting base and used to clamp a part to be machined; characterized in that: The clamping mechanism includes a gasket, a clamping jaw, a spring and a push rod; the gasket is fixed to the bottom of the mounting seat, a central hole is provided in the middle of the gasket, and a plurality of guide grooves are radially arranged on the periphery of the central hole; the clamping jaws are arranged one-to-one below the guide grooves, the upper ends of the clamping jaws are slidably installed in the corresponding guide grooves, and the inner sides of the lower ends of the clamping jaws protrude inward to form a clamping block; the upper end of the push rod is arranged between the mounting seat and the gasket and can move back and forth between the mounting seat and the gasket, and the lower end of the push rod slides through the central hole and extends under the gasket; the spring is arranged between the bottom of the mounting seat and the bottom of the push rod.

2. The high-lock clamping fixture for an automatic lathe according to claim 1, characterized in that: The diameter of the upper end of the push rod is larger than the diameter of the central hole.

3. The high-lock clamping fixture for an automatic lathe according to claim 1, characterized in that: The middle of the bottom of the mounting seat is concave to form a clearance hole located directly above the central hole. The upper end of the push rod and the spring above it are both mounted in the clearance hole, and the upper end of the push rod can slide back and forth in the clearance hole; a plurality of slide grooves are radially arranged on the periphery of the clearance hole at the bottom of the mounting seat, and the slide grooves are arranged one-to-one directly above the guide groove. A slider is slidingly arranged in each slide groove, and the lower end of the slider extends downward into the guide groove corresponding to the slide groove in which it is located and is connected to the clamping claw in the guide groove to form an integrated structure, and the integrated structure can slide back and forth along the guide groove under the action of external force.

4. The high-lock clamping fixture for an automatic lathe according to claim 3, characterized in that: The number of the sliding grooves is three and they are evenly arranged at the bottom of the mounting seat. Correspondingly, the number of the sliding blocks, the guide grooves and the clamping claws is also three and they are evenly arranged.

5. The high-lock clamping fixture for an automatic lathe according to claim 3, characterized in that: A plurality of single-acting cylinders corresponding to the sliders are provided in the mounting seat. The piston rods of the single-acting cylinders are fixedly connected to their corresponding sliders and can drive the sliders to slide back and forth along the slide grooves, thereby driving the clamping claws to slide back and forth along the guide grooves.

6. The high-lock clamping fixture for an automatic lathe according to claim 1, characterized in that: A mounting hole is provided on the top end of the push rod, and the lower end of the spring is sleeved in the mounting hole.

7. The high-lock clamping fixture for an automatic lathe according to claim 1, characterized in that: The part to be processed is a rod-shaped part, and the rod-shaped part has a head with a diameter larger than that of the rod.

8. The high-lock clamping fixture for an automatic lathe according to claim 7, characterized in that: The part to be processed is a high lock nut.

9. The high-lock clamping fixture for an automatic lathe according to claim 7, characterized in that: A radial clamping portion for clamping the rod of the part to be processed is formed between the clamping blocks of the multiple clamping jaws; an axial clamping portion for clamping the head of the part to be processed is formed between the lower end of the push rod and the upper surface of the clamping block.

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