Ball head inner supporting tool and ball head machining equipment

Abstract

The utility model relates to the technical field of inner supporting tools, and particularly discloses a ball head inner supporting tool and ball head machining equipment. The tool is used for positioning a ball head workpiece and comprises a tool body, an ejector core and a locking pin. The tool body comprises a tubular part, a containing hole is formed in the tubular part in a penetrating mode, at least part of the far end of the tubular part is a flexible pipe, and the flexible pipe can be arranged in a positioning blind hole of a ball head workpiece in a penetrating mode. The ejector core is arranged in the containing hole in a penetrating mode, the far end of the ejector core is a conical end, the conical end is gradually narrowed in the direction from the far end to the near end of the ejector core, the ejector core is elastically connected with the tool body through an elastic piece, the elastic piece is used for driving the ejector core to move to the first position, and when the ejector core is located at the first position, the conical end extends out of the containing hole. The locking pin is movably installed on the tool body and can enable the ejector core to be stopped at the second position, and when the ejector core is located at the second position, the conical end is in interference fit with the flexible pipe, so that the flexible pipe deforms and expands. According to the tool, the structure is improved, so that the positioning effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of inner support tooling, in particular to a ball head inner support tooling and ball head processing equipment. Background Art

[0002] Turning refers to lathe processing which is a part of mechanical processing. Lathe processing mainly uses a turning tool to turn a rotating workpiece. Lathes are mainly used to process shafts, discs, sleeves and other workpieces with rotating surfaces. They are the most widely used type of machine tool processing in mechanical manufacturing and repair factories.

[0003] When turning a powder ceramic ball head, the ball head workpiece needs to be effectively clamped and fixed, so an internal support fixture is used. After the internal support fixture stably clamps the ball head workpiece, it is installed on the lathe and fixed to ensure stable operation of the workpiece during the turning displacement process.

[0004] During batch processing, the ball head workpiece needs to be frequently disassembled and assembled on the inner support fixture to complete the replacement operation of the ball head workpiece. Moreover, the ball head workpiece needs to be run out on the inner support fixture before processing, which prolongs the positioning time of the ball head workpiece and causes low work efficiency. Utility Model Content

[0005] The utility model aims to provide a ball head inner support tool and ball head processing equipment to improve the specific structure of the tool, speed up the positioning speed of the ball head, and ensure the positioning effect of the ball head workpiece.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A ball head inner support tooling is used to position a ball head workpiece, and the ball head workpiece is provided with a positioning blind hole, including a tooling body, a top core and a locking pin; the tooling body includes a tubular member, the tubular member is penetrated by a receiving hole, and the distal end of the tubular member is at least partially a flexible tube, and the flexible tube can be passed through the positioning blind hole; the top core is also passed through the receiving hole, the distal end of the top core is a tapered end, and along the direction from the distal end of the top core to the proximal end of the top core, the tapered end gradually narrows, the top core and the tooling body are elastically connected by an elastic member, and the elastic member is used to drive the top core to move to a first position, and when the top core is located in the first position, the tapered end extends out of the receiving hole; the locking pin is movably installed on the tooling body, and the locking pin can stop the top core at a second position, and when the top core is located in the second position, the tapered end and the flexible tube are interference fit to cause the flexible tube to deform and expand.

[0008] As an optimal technical solution for the ball head inner support tooling, the locking pin is a locking bolt, the side wall of the tubular member is provided with a locking hole connected to the accommodating hole, and the locking bolt is screwed into the locking hole; the side wall of the top core is provided with a positioning ring groove, and when the top core is located in the second position, the end of the screw rod of the locking bolt is inserted into the positioning ring groove.

[0009] As a preferred technical solution for the ball head inner support tooling, the width of the positioning ring groove gradually decreases along the direction from the groove opening of the positioning ring groove to the groove bottom of the positioning ring groove; and / or the end of the screw of the locking bolt has a chamfer.

[0010] As a preferred technical solution for the ball head inner support tooling, when the top core is located at the first position, the locking pin can extend into the positioning ring groove from the groove top of the positioning ring groove.

[0011] As a preferred technical solution of the ball head inner support tooling, the elastic member is inserted into the receiving hole, and the elastic member is used to drive the top core to move relative to the tooling body along the length direction of the receiving hole.

[0012] As a preferred technical solution for the ball head inner support tooling, the tooling body also includes an end piece, which is fixed to the proximal end of the tubular member, and the two ends of the elastic member are respectively connected to the end piece and the proximal end of the top core.

[0013] As a preferred technical solution for the ball head inner support tooling, the portion of the top core except the tapered end matches the receiving hole.

[0014] As a preferred technical solution of the ball head inner support tooling, the wall thickness of the flexible tube gradually increases along the direction from the distal end of the tubular member to the proximal end of the tubular member.

[0015] As a preferred technical solution for the ball head inner support tooling, the elastic member is a compression spring.

[0016] The ball head processing equipment comprises a processing lathe and the above-mentioned ball head inner support tooling, characterized in that the ball head inner support tooling can be detachably mounted on the processing lathe, and the processing lathe is used to process the outer surface of the ball head workpiece.

[0017] Beneficial effects of the utility model:

[0018] The ball head inner support tooling can realize the movement of the top core between the first position and the second position by controlling the locking pin, so that the flexible tube can be deformed according to the operator's expectations due to the position change of the tapered end, so that the deformed and expanded flexible tube can achieve the purpose of positioning the ball head workpiece by fitting with the inner wall of the positioning blind hole. The design of the accommodating hole on the tubular member achieves the purpose of guiding the top core and avoids the situation where the tooling body produces a large position deviation due to accident. The definition that the distal end of the tubular member is at least partially a flexible tube optimizes the specific structure of the tubular member and ensures the structural stability of the tubular member and the deformation ability of the distal end of the tubular member. The definition that the top core and the tooling body are elastically connected by the elastic member ensures the reset ability of the top core, reduces the workload of the operator, and improves the efficiency of the top core switching between the first position and the second position. Through the above specific structural improvements to the ball head inner support tooling, after the operator loads the ball head workpiece into the ball head inner support tooling, the purpose of clamping the ball head workpiece can be achieved by tightening the locking pin. The auxiliary clamping time of the ball head workpiece is reduced, the positioning speed of the ball head workpiece is accelerated, the positioning effect of the ball head workpiece is guaranteed, and the positioning efficiency of the ball head workpiece is improved.

[0019] The ball head processing equipment improves the working flexibility of the ball head inner support fixture by designing that the ball head inner support fixture can be detachably installed on the processing lathe. First, the ball head inner support fixture is fixed on the processing lathe, and then the ball head workpiece is sleeved on the flexible tube. Finally, by means of tightening the locking pin, the ball head workpiece can be fixed, which is convenient for the subsequent processing lathe to complete the processing of the outer surface of the ball head workpiece. The above restrictions make it unnecessary to repeatedly clamp the ball head inner support fixture on the processing lathe, which reduces the workload of the operator, optimizes the processing steps of the ball head workpiece, and improves the clamping efficiency of the ball head workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a ball head workpiece provided by an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the ball head inner support tooling provided by an embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional view of the ball head inner support tooling when the ball head workpiece and the top core provided by the embodiment of the utility model are located at the second position;

[0023] Figure 4 It is a cross-sectional view of the ball head inner support tooling when the ball head workpiece and the top core provided by the embodiment of the utility model are located in the first position.

[0024] In the figure:

[0025] 100, tooling body; 110, tubular member; 120, end member;

[0026] 200, locking pin;

[0027] 300, elastic member;

[0028] 400, top core; 410, tapered end; 420, positioning ring groove;

[0029] 900, ball head workpiece; 910, positioning blind hole. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] like Figures 1 to 4 As shown, the present embodiment provides a ball head inner support tool for positioning a ball head workpiece 900, the ball head workpiece 900 is provided with a positioning blind hole 910, and the ball head inner support tool comprises a tool body 100, a top core 400 and a locking pin 200; the tool body 100 comprises a tubular member 110, the tubular member 110 has a receiving hole passing through it, the distal end of the tubular member 110 is at least partially a flexible tube, and the flexible tube can be passed through the positioning blind hole 910; the top core 400 is also passed through the receiving hole, and the distal end of the top core 400 is a tapered end 410, and along the distance from the distal end of the top core 400 to the locking pin 200, the ball head inner support tool comprises a tool body 100, a top core 400 and a locking pin 200; the tool body 100 comprises a tubular member 110, and the tubular member 110 has a receiving hole passing through it, and the distal end of the tubular member 110 is at least partially a flexible tube, and the flexible tube can be passed through the positioning blind hole 910; the top core 400 is passed through the receiving hole, and the distal end of the top core 400 is a tapered end 410, and along the distance from the distal end of the top core 400 to the locking pin 200, the ball head inner support tool comprises a tool body 100, a top core 400 and a locking pin 200; In the proximal direction of the top core 400, the tapered end 410 gradually narrows, and the top core 400 is elastically connected to the tooling body 100 through the elastic member 300. The elastic member 300 is used to drive the top core 400 to move to the first position. When the top core 400 is located in the first position, the tapered end 410 extends out of the accommodating hole; the locking pin 200 is movably installed on the tooling body 100, and the locking pin 200 can stop the top core 400 at the second position. When the top core 400 is located in the second position, the tapered end 410 is interference fit with the flexible tube, causing the flexible tube to deform and expand.

[0035] The ball head internal support tooling controls the locking pin 200 to realize the movement of the core 400 between the first position and the second position, thereby enabling the flexible tube to be deformed according to the operator's expectations due to the position change of the tapered end 410, so that the deformed and expanded flexible tube can be fitted with the inner wall of the positioning blind hole 910 to achieve the purpose of internal support positioning of the ball head workpiece 900. The design of the accommodating hole on the tubular member 110 achieves the purpose of guiding the core 400 and avoids the situation where the tooling body 100 is accidentally offset. The definition that the distal end of the tubular member 110 is at least partially a flexible tube optimizes the specific structure of the tubular member 110 and ensures the structural stability of the tubular member 110 and the deformation ability of the distal end of the tubular member 110. The definition that the core 400 and the tooling body 100 are elastically connected by the elastic member 300 ensures the reset ability of the core 400, reduces the workload of the operator, and improves the efficiency of the core 400 in switching between the first position and the second position. Through the above specific structural improvements to the ball head inner support fixture, after the operator installs the ball head workpiece 900 into the ball head inner support fixture, the ball head workpiece 900 can be clamped by tightening the locking pin 200. The auxiliary clamping time of the ball head workpiece 900 is reduced, the positioning speed of the ball head workpiece 900 is accelerated, the positioning effect of the ball head workpiece 900 is guaranteed, and the positioning efficiency of the ball head workpiece 900 is improved.

[0036] In this embodiment, the locking pin 200 is a locking bolt, and the side wall of the tubular member 110 is provided with a locking hole connected to the accommodating hole, and the locking bolt is screwed into the locking hole; the side wall of the top core 400 is provided with a positioning ring groove 420, and when the top core 400 is located in the second position, the end of the screw rod of the locking bolt is inserted into the positioning ring groove 420.

[0037] With the help of the locking bolt being threadedly connected to the locking hole, the locking pin 200 can be movably installed on the tooling body 100; and by selectively inserting the end of the screw of the locking bolt into the positioning ring groove 420, the top core 400 can be stably fixed in the second position, thereby realizing the clamping of the flexible tube between the top core 400 and the positioning blind hole 910, achieving the purpose of internal support and positioning of the ball head workpiece 900.

[0038] In one implementation of this embodiment, the groove width of the positioning ring groove 420 gradually decreases along the direction from the groove opening of the positioning ring groove 420 to the groove bottom of the positioning ring groove 420; in another implementation of this embodiment, the end of the screw of the locking bolt has a chamfer. In this embodiment, the groove width of the positioning ring groove 420 gradually decreases along the direction from the groove opening of the positioning ring groove 420 to the groove bottom of the positioning ring groove 420, and the end of the screw of the locking bolt has a chamfer.

[0039] With the above design, the difficulty for the operator to insert the locking bolt into the positioning ring groove 420 is reduced, the operator's work steps are simplified, the operator's work efficiency is improved, and it also ensures that the top core 400 can be successfully positioned at the second position.

[0040] Specifically, the chamfered surface of the screw of the locking bolt matches the side wall slope of the positioning ring groove 420. The above design ensures the smooth fit between the locking bolt and the top core 400, reduces the risk of positional displacement between the locking bolt and the top core 400 due to uneven force, and further improves the working stability of the ball head inner support tooling.

[0041] Furthermore, when the top core 400 is located at the first position, the locking pin 200 can extend from the top of the positioning ring groove 420 into the positioning ring groove 420. With the above definition, the position switching process of the top core 400 is further simplified, so that the operator can push the top core 400 to the second position by directly screwing the locking bolt. The above definition greatly improves the work efficiency of the operator, ensures that the locking bolt can be accurately positioned during the position switching operation, realizes the stable positioning of the ball head inner support tooling on the ball head workpiece 900, and ensures the positioning stability of the ball head inner support tooling.

[0042] When the locking pin 200 is screwed into the positioning ring groove 420 , the locking pin 200 drives the top core 400 to be pushed toward the proximal end. Due to the interference fit between the tapered end 410 and the flexible tube, the flexible tube is forced to partially expand, thereby clamping the ball head workpiece 900 .

[0043] When the locking pin 200 is rotated out of the positioning ring groove 420, the elastic member 300 moves the top core 400 to the distal end. At this time, the tapered end 410 is separated from the tool body 100, and the size of the flexible tube part is restored, so that the clamping ball head workpiece 900 can be smoothly removed.

[0044] In this embodiment, the elastic member 300 is inserted into the receiving hole, and the elastic member 300 is used to drive the top core 400 to move relative to the tool body 100 along the length direction of the receiving hole.

[0045] The above design limits the installation position of the elastic member 300, ensures that the elastic member 300 can operate stably for a long time, and thereby simplifies the specific structure of the ball head inner support tooling, and reduces the space occupied by the ball head inner support tooling.

[0046] Furthermore, the tool body 100 further includes an end piece 120 , which is fixed to the proximal end of the tubular member 110 , and both ends of the elastic member 300 are respectively connected to the proximal end of the end piece 120 and the top core 400 .

[0047] By providing the end piece 120, the difficulty of providing the elastic piece 300 is reduced, and the elastic connection between the tool body 100 and the top core 400 is achieved, thereby avoiding the risk of the elastic piece 300 accidentally detaching from the ball head inner support tool. The above definition further simplifies the structure of the ball head inner support tool, reduces the production cost of the ball head inner support tool, and reduces the space occupied by the ball head inner support tool.

[0048] In this embodiment, the elastic member 300 is a compression spring. The compression spring has the advantages of simple structure, low cost and small space occupation, and can ensure the stability of the elastic connection between the tool body 100 and the top core 400, ensure that the top core 400 can be smoothly driven to the first position, and ensure the long-term stable operation of the ball head inner support tool.

[0049] Exemplarily, the wall thickness of the flexible tube gradually increases along a direction from the distal end of the tubular member 110 to the proximal end of the tubular member 110 .

[0050] With the help of the above limitations, the deformation of the flexible tube is optimized, ensuring that the deformed flexible tube can match and fit with the inner wall of the positioning blind hole 910, avoiding accidental position displacement of the ball head workpiece 900, and further improving the positioning stability of the ball head inner support tooling for the ball head workpiece 900.

[0051] In this embodiment, the portion of the top core 400 other than the tapered end 410 matches the receiving hole. Specifically, the top core 400 is a columnar member, the receiving hole is cylindrical, and the portion of the top core 400 with the positioning ring groove 420 is spaced apart from the side wall of the receiving hole. With the above matching method, it is possible to avoid unexpected positional offset between the top core 400 and the tubular member 110, ensuring that the top core 400 can move according to a predetermined trajectory, so that the flexible tube expands as expected, thereby achieving stable positioning of the ball head inner support tooling for processing the ball head workpiece 900.

[0052] This embodiment also provides ball head processing equipment, including a processing lathe and the above-mentioned ball head inner support tooling, characterized in that the ball head inner support tooling can be detachably installed on the processing lathe, and the processing lathe is used to process the outer surface of the ball head workpiece 900.

[0053] The ball head processing equipment improves the working flexibility of the ball head inner support tooling by designing that the ball head inner support tooling can be detachably installed on the processing lathe. First, the ball head inner support tooling is fixed on the processing lathe, and then the ball head workpiece 900 is sleeved on the flexible tube. Finally, by means of tightening the locking pin 200, the ball head workpiece 900 can be fixed, which is convenient for the subsequent processing lathe to complete the processing of the outer surface of the ball head workpiece 900. The above restrictions make it unnecessary to repeatedly clamp the ball head inner support tooling on the processing lathe, reduce the workload of the operator, optimize the processing steps of the ball head workpiece 900, and improve the clamping efficiency of the ball head workpiece 900.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A ball head inner support fixture, used for positioning a ball head workpiece (900), wherein the ball head workpiece (900) is provided with a positioning blind hole (910), characterized in that: include: The tool body (100) comprises a tubular member (110), wherein the tubular member (110) has a receiving hole extending therethrough, and at least a portion of the distal end of the tubular member (110) is a flexible tube, and the flexible tube can be passed through the positioning blind hole (910); A top core (400) is inserted into the receiving hole, the distal end of the top core (400) is a tapered end (410), and the tapered end (410) gradually narrows in a direction from the distal end of the top core (400) to the proximal end of the top core (400), the top core (400) is elastically connected to the tooling body (100) through an elastic member (300), and the elastic member (300) is used to drive the top core (400) to move to a first position, and when the top core (400) is located in the first position, the tapered end (410) extends out of the receiving hole; A locking pin (200) is movably mounted on the tooling body (100), and the locking pin (200) can stop the top core (400) at a second position. When the top core (400) is located at the second position, the tapered end (410) is interference-fitted with the flexible tube, causing the flexible tube to deform and expand.

2. The ball head inner support tooling according to claim 1, characterized in that: The locking pin (200) is a locking bolt, and the side wall of the tubular member (110) is provided with a locking hole connected to the accommodating hole, and the locking bolt is screwed into the locking hole; the side wall of the top core (400) is provided with a positioning ring groove (420), and when the top core (400) is located in the second position, the end of the screw rod of the locking bolt is inserted into the positioning ring groove (420).

3. The ball head inner support tooling according to claim 2, characterized in that: The width of the positioning ring groove (420) gradually decreases along the direction from the groove opening of the positioning ring groove (420) to the groove bottom of the positioning ring groove (420); and / or The end of the screw rod of the locking bolt has a chamfer.

4. The ball head inner support tooling according to claim 3, characterized in that: When the top core (400) is located at the first position, the locking pin (200) can extend into the positioning ring groove (420) from the groove top of the positioning ring groove (420).

5. The ball head inner support tooling according to claim 1, characterized in that: The elastic member (300) is inserted into the accommodating hole, and the elastic member (300) is used to drive the top core (400) to move relative to the tooling body (100) along the length direction of the accommodating hole.

6. The ball head inner support tooling according to claim 5, characterized in that: The tooling body (100) further comprises an end piece (120), wherein the end piece (120) is fixedly connected to the proximal end of the tubular member (110), and the two ends of the elastic member (300) are respectively connected to the proximal end of the end piece (120) and the top core (400).

7. The ball head inner support tooling according to claim 1, characterized in that: The portion of the top core (400) other than the tapered end (410) matches the receiving hole.

8. The ball head inner support tooling according to claim 1, characterized in that: The wall thickness of the flexible tube gradually increases in a direction from the distal end of the tubular member (110) to the proximal end of the tubular member (110).

9. The ball head inner support tooling according to any one of claims 1 to 8, characterized in that: The elastic member (300) is a compression spring.

10. Ball head processing equipment, comprising a processing lathe and a ball head inner support tooling as claimed in any one of claims 1 to 9, characterized in that: The ball head inner support tooling can be detachably mounted on the processing lathe, and the processing lathe is used to process the outer surface of the ball head workpiece (900).

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