Necking apparatus

Abstract

This invention belongs to the field of intelligent control technology and provides a necking processing device, which includes: a clamping mechanism for clamping a part to be processed; the clamping mechanism includes a clamp that abuts against a first part of the part to be processed; and a necking device for applying pressure to a second part of the part to be processed, the pressure forming an inward necking on the outer side of the second part; wherein, the necking device includes a fixed ring with a hollow shaft and a rotating ring movable relative to the fixed ring, a necking ejector pin movable relative to the fixed ring is mounted on the fixed ring, the hollow shaft is configured to accommodate the part to be processed, and the rotating ring, under the action of an external driving force, drives the necking ejector pin to perform necking processing on the part to be processed. Therefore, by using a positioning mechanism in conjunction with the necking device, the various components of the part to be processed can be assembled more precisely, and on the basis of high-precision assembly, the necking device automatically completes the necking processing of the part to be processed.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology, and in particular to a necking processing device. Background Technology

[0002] With the development of electronic science and technology, the performance requirements of many electronic devices (such as chips and sensors) are becoming increasingly stringent in order to better meet the reliability requirements of electronic equipment. Some electronic devices are designed with bushings and shafts assembled inside the bushings. If the assembly of the bushings and shafts is simply done with an interference fit, the bushings and / or shafts themselves can easily be damaged, making it difficult to guarantee the yield and efficiency of the production of such electronic devices.

[0003] In the process of developing this invention, the inventors discovered that for the assembly of the bushing and shaft in the aforementioned electronic device, the shaft can be placed inside the bushing in advance, and then pressure can be applied to the outside of the bushing using a necking device. This prevents damage to the bushing and / or shaft itself during the pressing process due to interference fit between the inside of the bushing and the shaft. However, the prior art lacks necking processing equipment capable of implementing this technical solution, especially in ensuring that the shaft can be assembled into the bushing with the required assembly precision while simultaneously performing the necking operation on the bushing. Summary of the Invention

[0004] To address the lack of high-precision assembly equipment for electronic components, including bushings and shafts, in the prior art, this invention provides a necking processing device. During the necking process of the parts to be processed, a positioning mechanism works in conjunction with the necking device to ensure that the various components of the parts to be processed are assembled more precisely. Based on high-precision assembly, the necking device automatically completes the necking process of the parts to be processed.

[0005] This invention provides a necking processing device, characterized in that it comprises:

[0006] A clamping mechanism for clamping a part to be processed; the clamping mechanism includes a clamp that abuts against a first part of the part to be processed, the clamp holding the part to be processed in a predetermined posture;

[0007] A necking device is used to apply pressure to a second part of the part to be processed, the pressure being used to form an inward necking on the outside of the second part;

[0008] The necking device includes a fixed ring with a hollow shaft and a rotating ring that can move relative to the fixed ring. The fixed ring is equipped with a necking pin that can move relative to the fixed ring. The hollow shaft is configured to accommodate the part to be processed. Under the action of an external driving force, the rotating ring drives the necking pin to perform necking processing on the part to be processed.

[0009] In a preferred embodiment of the present invention, the necking device further includes a rotating ring located outside the fixed ring. The end of the rotating ring is connected to a rotating handle, and the rotating handle is connected to the telescopic bearing via a rotatable pivot. The inner side of the rotating ring is provided with a groove formed radially from the inside to the outside. Under the driving force applied by the telescopic bearing, the rotating handle drives the rotating ring to rotate along the pivot, and through the groove on the inner side of the fixed ring, drives the necking pin to perform necking processing on the part to be processed inside the hollow shaft.

[0010] In a further preferred embodiment of the present invention, the groove is located radially on the rotating ring, with a first end located inside the rotating ring and a second end extending from the inside of the rotating ring toward the outside of the rotating ring. The first end and the second end are located on different axes, and a curve is formed between the first end and the second end. During the rotation of the rotating ring, the position where each groove of the rotating ring abuts against the end of the corresponding constricted ejector pin gradually changes from the second end to the first end, and drives the constricted ejector pin to move along the radial direction of the fixed ring toward the position of the axis of the fixed ring.

[0011] In a preferred embodiment of the present invention, the number of the constricted ejector pins is greater than or equal to 2, and the constricted ejector pins are arranged sequentially at intervals along the circumference of the fixing ring; the end of each constricted ejector pin facing the center of the fixing ring is set into a pointed shape.

[0012] In a preferred embodiment of the present invention, the clamping mechanism includes a first clamping mechanism and a second clamping mechanism. The first part of the component to be processed includes a first clamped portion and a protrusion extending from the end of the first clamped portion. The first clamping mechanism is used to clamp the first clamped portion, and the second clamping mechanism is used to clamp the protrusion. The first clamping mechanism restricts the vertical movement of the component to be processed through the first clamped portion, and the second clamping mechanism restricts the horizontal movement of the component to be processed through the protrusion.

[0013] In a preferred embodiment of the present invention, the clamping mechanism further includes a third clamping mechanism located below the constricting ejector pin, which is used to limit the displacement of the part to be processed below the constricting ejector pin.

[0014] In a preferred embodiment of the present invention, the necking processing equipment further includes a position detection device, which is used to acquire image information of the part to be processed after it is clamped by the clamping mechanism, and to determine whether the part to be processed meets the positional relationship of the necking processing requirements based on the image information acquired by the position detection device.

[0015] In a preferred embodiment of the present invention, the necking device further includes a position recovery component that cooperates with the necking ejector pin; the rotating ring, under the action of an external driving force, drives the necking ejector pin toward the position of the part to be processed; when the external driving force is removed, the necking ejector pin returns to its initial position under the action of the position recovery component.

[0016] The above-mentioned necking processing equipment provided by the present invention provides a special necking device with a necking pin, and also provides a clamping mechanism. The clamping mechanism includes a clamp that holds the part to be processed in a predetermined posture. With the part to be processed held in the predetermined posture, the necking pin in the necking processing equipment performs necking processing on the part to be processed. This allows the various parts of the part to be processed to be assembled more accurately. On the basis of high-precision assembly, the necking device automatically completes the necking processing of the part to be processed.

[0017] Other features and advantages of the invention will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures and / or processes particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a necking processing device provided in an embodiment of the present invention;

[0019] Figure 2 This invention provides a schematic diagram of the structure of a necking device and a driving device in a necking processing equipment;

[0020] Figure 3 This is a schematic diagram of the structure of a necking device in a necking processing equipment in the first state, according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of a necking device in a necking processing equipment in a second state, according to an embodiment of the present invention.

[0022] Figure 5 This invention provides a schematic diagram of the upper clamping mechanism and position detection device in a necking processing equipment.

[0023] Figure 6 This invention provides a schematic diagram of the bottom clamping mechanism and the component to be processed in a necking processing device.

[0024] Figure 7 This invention provides a functional block diagram of the internal structure of a necking processing device.

[0025] Component Description

[0026] 100 - First necking station, 200 - Part to be processed, 300 - Second necking processing station.

[0027] 110 - First clamp, 120 - Second clamp, 130 - Narrowing mechanism

[0028] 140 - Camera, 150 - Drive shaft, 160 - Support frame

[0029] 170 - Base, 180 - Third clamp, 410 - Telescopic bearing

[0030] 420 - Pivot, 430 - Rotating handle, 121 - First clamping end

[0031] 122 - Second clamping end, 123 - Clamping connection part, 124 - First guide rail,

[0032] 125 - Second guide rail, 131 - Outer ring, 132 - Narrowing ejector pin,

[0033] 133-Hollow section, 134-Rotating ring, 135-Groove.

[0034] 136 - Retaining ring, 181 - Third clamping end, 182 - Fourth clamping end

[0035] 1100 - Clamping mechanism, 1200 - Positioning mechanism, 1300 - Narrowing device

[0036] 1400 - Position detection mechanism, 1500 - Control device, 1600 - Drive mechanism Detailed Implementation

[0037] The following detailed description of the embodiments of the present invention, in conjunction with the accompanying drawings, will provide a thorough understanding of how the present invention uses technical means to solve technical problems and achieve technical effects, enabling its implementation. It should be noted that these specific descriptions are merely intended to facilitate a clearer understanding of the present invention by those skilled in the art, and are not intended to limit the scope of the invention. For example, the terms "first" and "second" mentioned in the embodiments of the present invention are not intended to limit the invention, but are merely used to indicate the sequence numbers of multiple identical or similar devices or mechanisms. Those skilled in the art can readjust these sequence numbers for ease of description or during the organization of technical solutions. Furthermore, alternative solutions are described for some mechanisms in different embodiments, and these alternatives can be applied to other identical or similar devices or mechanisms. As long as there is no conflict, the various embodiments and features in each embodiment of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0038] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0039] Example

[0040] like Figure 1 The diagram shows a structural schematic of a necking processing device provided in this embodiment. The necking processing device includes two processing stations: a first necking station 100 and a second necking station 300. The first necking station 100 and the second necking station 300 are respectively fixed on a base 170, and a support frame 160 is provided on the base 170. A drive shaft 150 is provided on the support frame 160, and the drive shaft 150 can move up and down, thereby applying a driving force to the parts that need to move up and down at the necking processing station. It should be noted that both the first necking station 100 and the second necking station 300 are provided with the clamping mechanism and necking device mentioned below. The following description uses the first necking processing station 100 as an example to describe the clamping mechanism, necking device, and their structural relationship in the necking processing station.

[0041] like Figure 1 , Figure 2 As shown, the necking processing equipment provided in this embodiment includes:

[0042] A clamping mechanism for clamping a part to be processed; the clamping mechanism includes a clamp that abuts against a first part of the part to be processed, the clamp holding the part to be processed in a predetermined posture.

[0043] As shown in the figure Figure 1 , 5 As shown, the clamping mechanism includes a first clamping mechanism and a second clamping mechanism. The first clamping mechanism includes a first clamp 110, and the second clamping mechanism includes a second clamp 120. The first part of the workpiece to be processed includes a first clamped part and a protrusion extending from the end of the first clamped part. The first clamp 110 of the first clamping mechanism is used to clamp the first clamped part, and the second clamp 120 of the second clamping mechanism is used to clamp the protrusion. The first clamping mechanism restricts the vertical movement of the workpiece to be processed through the first clamped part, and the second clamping mechanism restricts the horizontal movement of the workpiece to be processed through the protrusion.

[0044] It should be noted that the first clamping mechanism and the second clamping mechanism can be configured as two independent clamps, each with its own clamping adjustment mechanism for adjusting the clamp tightness and position, or they can share all or part of the clamping adjustment mechanism. For example, Figure 5 As shown, the front end of the second clamp 120 includes a first clamping end 121 and a second clamping end 122. The degree of closure of the two clamping parts is used to adjust the tightness of the clamping of the protrusion on the workpiece to be processed. Furthermore, the second clamping mechanism also includes a clamping connecting part 123 connected to the second clamp. This clamping adjustment part... Figure 5The second clamp 120 can be moved in the left and right directions. The first guide rail 124 can move relative to the second guide rail 125, and the movement of the first guide rail 124 drives the second clamp 120 to move in the forward and reverse directions. Moreover, the cross-sections of the first clamping end 121 and the second clamping end 122 are respectively set to match the structure of the clamping part of the workpiece to be processed, thereby restricting the left and right movement of the workpiece to be processed, that is, ensuring that the positional accuracy of the workpiece to be processed in the left and right directions meets the specified requirements, such as whether the vertical angle and the left and right position are within the predetermined error range. After receiving the workpiece 200 to be processed placed therein by the operator, the first clamp 110 of the first clamping mechanism can stably clamp the workpiece 200 to be processed and restrict the up and down movement of the workpiece 200 to be processed. It should be noted that, depending on the actual needs of the workpiece 200, if the part of the workpiece in contact with the first fixture is movable relative to the part in contact with the second fixture before the necking process, the first fixture 110 and the second fixture 120 can be used to restrict the movement of different parts of the workpiece in the three-dimensional direction respectively; if the part of the workpiece in contact with the first fixture 110 is not movable relative to the part in contact with the second fixture 120 before the necking process, as above, the first fixture 110 and the second fixture 120 can be used to restrict the position of the workpiece in different directions respectively.

[0045] The component to be processed provided in this embodiment includes a housing and a central shaft passing through the interior of the housing. One end of the central shaft protrudes from the end of the housing, and the size of the protrusion and its concentricity with the housing are subject to certain requirements. The component to be processed can be a mechanical part including the housing and the central shaft, such as a bearing of a motor; it can also be an electronic device, such as a sensor including the housing and the central shaft. This embodiment does not impose specific limitations on its specific type and structure.

[0046] like Figure 6 As shown, in a preferred embodiment of this invention, the clamping mechanism further includes a third clamping mechanism located below the constricting ejector pin, used to limit the displacement of the workpiece under the constricting ejector pin. This third clamping mechanism also includes a third clamp 180, which includes a third clamping end 181 and a fourth clamping end 182, and may also be provided with a position adjustment mechanism similar to the second clamp described above.

[0047] like Figure 1 As shown, the necking processing equipment provided in this embodiment also includes:

[0048] The necking device includes a necking mechanism 130 for applying necking processing and a drive mechanism for applying power to the necking mechanism. The necking mechanism 130 in the necking device applies pressure to the second part of the part to be processed 200. This pressure is used to form an inward necking on the outer side of the second part of the part to be processed 200. For example, pressure is applied to the outer side of the part to be processed 200 through the aforementioned necking pin, causing the outer periphery of the part to be processed 200 to deform inward, thereby further locking the central shaft inside the housing. Alternatively, the necking can be formed by compressing the end inward. These different necking processing methods are all within the protection scope of the technical solution provided in this embodiment.

[0049] The necking device includes a fixed ring 136 with a hollow shaft and a rotating ring 134 that can move relative to the fixed ring 136. The hollow part 133 inside the fixed ring 136 is used to accommodate the part to be processed 200. A necking ejector pin 132 that can move relative to the fixed ring is installed on the fixed ring 136. The hollow shaft is configured to accommodate the part to be processed 200. The rotating ring 134 is located outside the fixed ring 136 and, under the action of an external driving force, drives the necking ejector pin 132 to perform necking processing on the part to be processed.

[0050] like Figure 2 As shown, one way to provide external driving force is to drive the bearing and the rotating handle. Specifically, the necking device also includes a rotating ring 134 located outside the fixed ring 136. The end of the rotating ring 134 is connected to the rotating handle 430. The rotating handle 430 is connected to the telescopic bearing 410 through a rotatable pivot 420. The inner side of the rotating ring 134 is provided with a groove 135 formed radially from the inside to the outside. Under the driving force applied by the telescopic bearing 410, the rotating handle 430 drives the rotating ring 134 to rotate along the pivot 420, and drives the necking pin 132 to perform necking processing on the part 200 to be processed in the hollow shaft through the groove 135 on the inner side of the rotating ring 134. And an outer ring located outside the rotating ring 134, the outer ring 131 is provided with a notch that allows the rotating handle 430 to move, and the outer ring 134 outside the notch is configured to restrict the excessive movement of the rotating handle 430, thereby placing the constricting ejector pin 132 to apply excessive extrusion force to the workpiece 200 to be processed, thereby improving the yield of the workpiece 200 to be processed.

[0051] In a further preferred embodiment, the groove 135 is radially positioned on the rotating ring, with its first end located inside the rotating ring 134 and its second end extending from the inside of the rotating ring 134 towards the outside of the rotating ring. The first and second ends are located on different axes, forming a curve between them. During rotation, the position where each groove 135 of the rotating ring 134 abuts against the end of the corresponding constricted ejector pin 132 gradually shifts from the second end to the first end, thus moving the constricted ejector pin 132 radially towards the axis of the fixed ring 134. Figure 3 The diagram shows a first state where the second end of the groove 135 abuts against the end of the constricting ejector pin 132. In this state, the front end of the constricting ejector pin 132 retracts into the retaining ring 134, and no extrusion force is applied to the workpiece 200 to be processed; Figure 4 The diagram shows a second state in which the first end of the groove 135 abuts against the end of the constricting ejector pin 132. In this state, the front end of the constricting ejector pin 132 extends to the hollow portion 133 at the center of the fixing ring 136. Thus, when the fixing ring 136 contains the part to be processed 200, the constricting ejector pin 132 can apply a squeezing force to the periphery of the part to be processed 200 to perform the constricting operation.

[0052] Using the above structure, the size of the necking ejector pin 132 or its position relative to the fixed ring can be adjusted according to the necking depth requirement of the workpiece 200, enabling rapid switching between workpieces with different necking requirements. Furthermore, the necking processing time can be quickly adjusted by regulating the ratio of the extension length of the telescopic bearing 410 to the time, thus better meeting the needs of more diverse application scenarios. Of course, the necking processing device provided in this embodiment is not limited to the preferred implementation described above. For example, a magnetic force application component can be provided between the rotating ring and the fixed ring to drive the movement of the necking ejector pin; a single necking ejector pin can also be provided, allowing it to rotate at different positions to achieve necking processing. These different implementations all fall within the protection scope of the technical solution provided in this embodiment.

[0053] like Figures 1-4 As shown, in a preferred embodiment of this invention, the number of necking pins 132 is greater than or equal to 2 (e.g., 8), and the necking pins 132 are arranged sequentially at intervals along the circumference of the fixing ring 134; the end of each necking pin 132 facing the center of the fixing ring 134 is set in a pointed shape. This allows the necking processing position around the part to be processed 200 to be subjected to more uniform force during the necking process, thereby improving the quality of the necking process.

[0054] like Figure 5As shown in the preferred embodiment, the necking processing equipment further includes a position detection device, which includes a camera 140. The position detection device uses the camera 140 to acquire image information of the part to be processed 200 after it is clamped by the clamping mechanism, and determines whether the positional relationship of the part to be processed meets the necking processing requirements based on the image information acquired by the position detection device. For example, the positional relationship can be determined by comparing the coordinate information of key positions in the photograph with that in the predetermined image, or by taking a photograph to obtain the coordinate parameters of the part to be processed in the predetermined coordinate system. The number of photographs can be one or multiple. In the case of multiple photographs, the one with higher clarity can be selected for processing, or the results of multiple processing can be averaged. These different implementation methods all fall within the protection scope of the technical solution provided in this embodiment.

[0055] In a preferred embodiment of this invention, the necking device further includes a position recovery component (not shown) that cooperates with the necking ejector pin 132; under the action of an external driving force, the rotating ring drives the necking ejector pin toward the position of the part to be processed; when the external driving force is removed, the necking ejector pin returns to its initial position under the action of the position recovery component. The position recovery component can be a spring, a torsion spring, or a magnetic component; all these different implementations fall within the protection scope of the technical solution provided in this embodiment.

[0056] like Figure 7 As shown, the necking processing equipment in this embodiment includes:

[0057] The clamping mechanism 1110 is the same as that provided in the above embodiment, for example, there can be 3 clamping mechanisms;

[0058] The positioning mechanism 1200 includes the positioning mechanism of the entire device and a position adjustment mechanism that cooperates with the clamping mechanism to adjust the position of the positioning mechanism;

[0059] The narrowing device 1300 is the same as that provided in the above embodiment; for example, it may have a narrowing mechanism.

[0060] The position detection mechanism 1400 is the same as that provided in the above embodiment, and may include, for example, a camera;

[0061] The control device 1500 may include a controller that stores a control program or a control circuit with logic judgment function, etc.

[0062] The drive mechanism 1600 adjusts the operation and position of the clamping mechanism 1100, the positioning mechanism 1200, and the narrowing device 1300 based on the control logic inside the control device 1500 and the detection results of the position detection mechanism 1500.

[0063] The necking processing equipment provided in this embodiment provides a dedicated necking device with a necking ejector pin, and also provides a clamping mechanism. The clamping mechanism includes a clamp that holds the part to be processed in a predetermined posture. With the part to be processed held in the predetermined posture, the necking ejector pin in the necking processing equipment performs necking processing on the part to be processed. This allows the various parts of the part to be processed to be assembled more accurately. Based on high-precision assembly, the necking device automatically completes the necking processing of the part to be processed.

[0064] Finally, it should be noted that the above description is merely the preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and simple substitutions to the technical solutions of the present invention using the disclosed methods and techniques without departing from the scope of the present invention; all of these variations fall within the protection scope of the present invention.

Claims

1. A necking processing device, characterized in that, include: A clamping mechanism for clamping a part to be processed; the clamping mechanism includes a clamp that abuts against a first part of the part to be processed, the clamp holding the part to be processed in a predetermined posture; A necking device is used to apply pressure to a second part of the part to be processed, the pressure being used to form an inward necking on the outside of the second part; The necking device includes a fixed ring with a hollow shaft and a rotating ring that can move relative to the fixed ring. The fixed ring is equipped with a necking pin that can move relative to the fixed ring. The hollow shaft is configured to accommodate the part to be processed. Under the action of an external driving force, the rotating ring drives the necking pin to perform necking processing on the part to be processed. The clamping mechanism includes a first clamping mechanism and a second clamping mechanism. The first part of the component to be processed includes a first clamped portion and a protrusion extending from the end of the first clamped portion. The first clamping mechanism is used to clamp the first clamped portion, and the second clamping mechanism is used to clamp the protrusion. The first clamping mechanism restricts the vertical movement of the component to be processed through the first clamped portion, and the second clamping mechanism restricts the horizontal movement of the component to be processed through the protrusion. The second clamping mechanism includes a second clamp for clamping the protrusion; The second clamping mechanism further includes a clamping connection portion connected to the second clamp, the clamping connection portion being capable of driving the second clamp to move along the extending direction of the clamping connection portion; The second clamping mechanism further includes a first guide rail and a second guide rail that are slidably connected. The first guide rail is connected to the clamping connection part, and the second guide rail is connected to the first clamping mechanism. The sliding direction of the first guide rail is perpendicular to the extension direction of the clamping connection part.

2. The necking processing equipment according to claim 1, characterized in that, The necking device also includes a rotating ring located outside the fixed ring. The end of the rotating ring is connected to a rotating handle, and the rotating handle is connected to the telescopic bearing via a rotatable pivot. The inner side of the rotating ring is provided with a groove formed radially from the inside to the outside. Under the driving force applied by the telescopic bearing, the rotating handle drives the rotating ring to rotate along the pivot, and through the groove on the inner side of the rotating ring, drives the necking top to perform necking processing on the part to be processed inside the hollow shaft.

3. The necking processing equipment according to claim 2, characterized in that, The groove is located radially on the rotating ring, with a first end inside the rotating ring and a second end extending from the inside of the rotating ring toward the outside of the rotating ring. The first end and the second end are located on different axes, and a curve is formed between the first end and the second end. During the rotation of the rotating ring, the position where each groove of the rotating ring abuts against the end of the corresponding constricted ejector pin gradually changes from the second end to the first end, and drives the constricted ejector pin to move along the radial direction of the fixed ring toward the position of the axis of the fixed ring.

4. The necking processing equipment according to claim 1, characterized in that, The number of the constricted ejector pins is greater than or equal to 2, and the constricted ejector pins are arranged sequentially at intervals along the circumference of the fixing ring; the end of each constricted ejector pin facing the center of the fixing ring is set in a pointed shape.

5. The necking processing equipment according to claim 1, characterized in that, The clamping mechanism further includes a third clamping mechanism located below the constricting ejector pin, which is used to limit the displacement of the part to be processed below the constricting ejector pin.

6. The necking processing equipment according to claim 1, characterized in that, It also includes a position detection device, which is used to acquire image information of the part to be processed after it is clamped by the clamping mechanism, and to determine whether the part to be processed meets the positional relationship of the necking processing requirements based on the image information acquired by the position detection device.

7. The necking processing equipment according to claim 1, characterized in that, The necking device also includes a position recovery component that cooperates with the necking ejector pin; under the action of an external driving force, the rotating ring drives the necking ejector pin toward the position of the part to be processed; when the external driving force is removed, the necking ejector pin returns to its initial position under the action of the position recovery component.

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