Automatic tool for turning inner hole end face of circular ring

Abstract

The utility model relates to an automatic tool for turning an inner hole end face of a circular ring, which comprises a fixed seat, a fixed seat, a driving rod, a rotating shaft, a rotating shaft, a rotating shaft, a rotating shaft, a rotating shaft and a rotating shaft, and is characterized in that the fixed seat is internally provided with a cavity; the self-centering assembly comprises a wedge-shaped block and clamping pieces in sliding connection with the wedge-shaped block, the wedge-shaped block is fixedly connected to the upper portion of the driving rod, the clamping pieces are in sliding connection with the fixing base in the radial direction, and when the driving rod ascends or descends, the clamping pieces are driven to be away from each other or close to each other to loosen or clamp a workpiece in the horizontal direction; and the pressing assembly comprises pressing pieces arranged on the driving rod, and when the driving rod ascends or descends, the pressing pieces are driven to be far away from each other or close to each other, so that the workpiece is loosened or pressed in the vertical direction. Compared with a single-direction positioning method for machining the workpiece, by arranging the self-centering assembly and the pressing assembly, positioning machining is more stable, and the machining precision is higher.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical processing, in particular to an automatic tooling for machining the inner hole end face of a circular ring. BACKGROUND

[0002] In the field of mechanical processing, especially in high-end industries such as automobile, aerospace and precision instrument manufacturing, the machining of the inner hole end face of a circular ring occupies a crucial position. The machining precision and surface quality of such parts are extremely strict. However, the traditional machining tooling for the inner hole end face of a circular ring, such as single positioning method of V-block positioning or three-jaw chuck positioning, has been difficult to meet the urgent needs of modern high-precision production. This limitation is particularly evident in the fields of automobile manufacturing and aerospace, which have extremely high requirements for the precision of parts. For example, the machining precision of the inner hole and end face of some key circular ring components of an automobile engine directly affects the overall performance and reliability of the engine. If the key indicators such as cylindricity, coaxiality and perpendicularity of the end face of the inner hole cannot be accurately controlled, it will directly cause a series of problems such as increased vibration during engine operation, decreased power transmission efficiency and rapid wear of parts, thereby seriously affecting the overall performance and service life of the automobile. SUMMARY

[0003] The embodiment of the application provides an automatic tooling for machining the inner hole end face of a circular ring to solve the problem that the single positioning method in the related art is difficult to meet the urgent needs of modern high-precision production.

[0004] In a first aspect, an automatic tooling for machining the inner hole end face of a circular ring is provided, which comprises:

[0005] A fixed seat is provided with a cavity, a driving rod is vertically slidably connected in the cavity, and an elastic member is sleeved on the driving rod;

[0006] A self-centering assembly comprises a wedge block and a plurality of clamping pieces slidably connected with the wedge block, the wedge block is fixedly connected above the driving rod, the bottom of the wedge block is fixedly connected to the upper end of the elastic member, and the clamping pieces are radially slidably connected to the fixed seat; when the driving rod is raised or lowered, the plurality of clamping pieces are driven to move away from or close to each other, thereby loosening or clamping the workpiece in the horizontal direction;

[0007] A pressing assembly comprises a mounting seat slidably connected with the driving rod, the lower end of the elastic member is fixedly connected to the mounting seat, and a plurality of pressing pieces are rotatably connected to one end of the mounting seat away from the driving rod; when the driving rod is raised or lowered, the plurality of pressing pieces are driven to move away from or close to each other, thereby loosening or pressing the workpiece in the vertical direction.

[0008] In some embodiments, the pressing assembly comprises through holes evenly arranged on the sidewall of the fixing base, the through holes are at least two, the mounting base is slidably connected with the fixing base in the vertical direction, the mounting base is rotatably connected with the pressing piece at the end away from the driving rod, the pressing piece is provided with a guide groove, the fixing base is fixedly provided with a limiting column, and the limiting column is arranged in the guide groove.

[0009] In some embodiments, the guide groove comprises a vertical groove and an inclined groove arranged below the vertical groove, and the inclined groove is inclined to the driving rod.

[0010] In some embodiments, the bottom center of the mounting base is fixedly connected with a universal ball head, and the universal ball head is slidably connected with the driving rod.

[0011] In some embodiments, the lower end of the driving rod is fixedly connected with a support rod, the upper end of the support rod is provided with a containing cavity, and the universal ball head can swing in the containing cavity.

[0012] In some embodiments, the pressing piece comprises a vertical rod arranged vertically and a vertical rod arranged vertically above the vertical rod, and the guide groove is arranged on the vertical rod.

[0013] In some embodiments, the sidewall of the fixing base is fixedly provided with a plurality of mounting plate groups, each mounting plate group is provided with two mounting plates, the limiting column is fixedly arranged between the two mounting plates, and the pressing piece is slidably connected with the limiting column.

[0014] In some embodiments, the clamping pieces are at least three, the wedge block is provided with a sliding groove matched with the number of clamping pieces, and the upper end of the sliding groove is inclined to the center of the wedge block.

[0015] In some embodiments, the clamping piece comprises a horizontal rod slidably connected with the fixing base and a bent hook part fixedly connected with the upper end of the horizontal rod.

[0016] In some embodiments, a supporting base is arranged above the fixing base.

[0017] The embodiment of the application provides an automatic tool for the inner hole end face of a circular ring vehicle. Since the driving rod is arranged in the fixing base, when the driving rod descends, the wedge block descends, the clamping pieces are close to each other, the workpiece is limited in the horizontal direction, the wedge block is compressed in the descending process, the elastic piece drives the mounting base to descend, the pressing piece rotates, the upper end of the pressing piece is close to each other, the workpiece is limited in the vertical direction, when the driving rod rises, the wedge block drives the clamping pieces to be far away from each other, and the pressing piece is far away from each other, so that the workpiece is released from the limitation in the horizontal and vertical directions. Compared with the positioning method for processing the workpiece in a single direction, the positioning and processing of the application are more stable, and the processing precision is higher. BRIEF DESCRIPTION OF DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the automated tooling structure for the inner hole end face of the annular vehicle provided in an embodiment of this application;

[0020] Figure 2 This is a top view of the automated tooling structure for the inner hole end face of the annular vehicle provided in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the AA cross-sectional structure of the automated tooling for the inner hole end face of the annular vehicle provided in an embodiment of this application.

[0022] In the diagram: 1. Fixed base; 101. Cavity; 102. Through hole; 2. Drive rod; 3. Wedge block; 4. Slide groove; 5. Clamping component; 501. Horizontal bar; 502. Hook part; 6. Pressing component; 601. Vertical bar; 602. Vertical rod; 7. Elastic component; 8. Mounting base; 9. Guide groove; 901. Vertical groove; 902. Inclined groove; 10. Limiting post; 11. Universal ball joint; 12. Support base; 13. Mounting plate; 14. Support rod; 15. Receiving cavity. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This application provides an automated tooling for the inner hole end face of a circular car, which can solve the problem that the single positioning method used in related technologies is difficult to meet the urgent needs of modern high-precision production.

[0025] like Figures 1-3 As shown, an automated tooling for the end face of an inner hole of a circular car includes:

[0026] The fixed seat 1 is provided with a cavity 101 in the central area, and a driving rod 2 is vertically slidably connected in the cavity 101. An elastic member 7 is sleeved on the driving rod 2, and the elastic member 7 is preferably a rectangular spring. The upper end of the elastic member 7 is fixedly connected to the bottom of a wedge-shaped block 3, and the lower end of the elastic member 7 is fixedly connected to the upper end face of a mounting seat 8. The lower end of the driving rod 2 is fixedly connected with a supporting rod 14, and the bottom of the supporting rod 14 is fixedly connected with the output end of a driving mechanism, such as the output shaft of an air cylinder or a lathe drawbar, so that the supporting rod 14 can move up and down in the vertical direction, thereby driving the driving rod 2 to move up and down in the vertical direction. Three through holes 102 are uniformly formed in the side wall of the fixed seat 1, and the through holes 102 are in communication with the cavity 101. Three mounting plate groups are fixedly installed on the side wall of the fixed seat 1, and each mounting plate group is provided with two mounting plates 103. The two mounting plates 13 are fixedly installed with a limiting column 10 therebetween.

[0027] The self-centering assembly includes the wedge-shaped block 3 and clamping pieces 5 slidably connected with the wedge-shaped block 3. The wedge-shaped block 3 is fixedly connected above the driving rod 2, and the clamping pieces 5 are radially slidably connected with the fixed seat 1. When the driving rod 2 rises or falls, the clamping pieces 5 are driven to move away from or close to each other, thereby loosening or clamping the workpiece in the horizontal direction.

[0028] Further, the clamping pieces 5 are provided with three clamping pieces 5, which include a horizontal rod 501 slidably connected with the fixed seat 1 and a bent hook portion 502 fixedly connected with the upper end of the horizontal rod 501. The bent hook portion 502 is close to the driving rod 2. The wedge-shaped block 3 is provided with three sliding grooves 4, and the upper end of the sliding groove 4 is inclined to the center of the wedge-shaped block 3. One end of the horizontal rod 501 is slidably connected with the wedge-shaped block 3 through the sliding groove 4.

[0029] The pressing assembly includes a mounting seat 8 slidably connected with the driving rod 2, and the lower end of the elastic member 7 is fixedly connected with the mounting seat 8. The mounting seat 8 is rotatably connected with three pressing pieces 6 at the end away from the driving rod 2. Figure 1 and Figure 2 As shown, the pressing pieces 6 and the clamping pieces 5 are staggered in the circumferential direction. When the driving rod 2 rises or falls, the upper ends of the three pressing pieces 6 are driven to move away from or close to each other, thereby loosening or pressing the workpiece in the vertical direction.

[0030] Further, the pressing assembly includes three through holes 102 uniformly formed in the side wall of the fixed seat 1. The mounting seat 8 extends out of the three through holes 102 and is slidably connected with the fixed seat 1 in the vertical direction. The mounting seat 8 is rotatably connected with the pressing pieces 6 at the end away from the driving rod 2. The pressing pieces 6 include a vertical rod 601 arranged vertically and a vertical rod 602 arranged vertically above the vertical rod 601. The vertical rod 601 is provided with a guide groove 9, which includes a vertical groove 901 and an inclined groove 902 arranged below the vertical groove 901. The lower end of the inclined groove 902 is inclined to the driving rod 2. The limiting column 10 is arranged in the guide groove 9.

[0031] Further, the bottom center of the mounting seat 8 is fixedly connected with a universal ball head 11, the universal ball head 11 is slidingly connected with the driving rod 2, the driving rod 2 is gap-fitted between the mounting seat 8 and the universal ball head 11, the upper end of the supporting rod 14 is provided with a containing cavity 15, and the universal ball head 11 can swing in the containing cavity 15, so that flexibility in the pressing process is increased.

[0032] In some embodiments, the fixed seat 1 is provided with a supporting seat 12 above, the cross section of the supporting seat 12 is concave, the inner diameter of the concave shape is the same as the inner diameter of the workpiece, the upper end surface of the concave shape of the supporting seat 12 is used for supporting the workpiece, and the recessed part of the concave shape of the supporting seat 12 can collect waste in the machining process.

[0033] In some embodiments, in order to further improve the stability and safety of workpiece clamping and pressing, an elastic anti-skid piece can be arranged on the end of the vertical rod 602 and the surface of the hook part 502 in contact with the workpiece, so that the workpiece is prevented from sliding or shifting due to vibration or external force in the machining process. The elastic anti-skid piece can be made of materials with high friction coefficient and good elasticity, such as rubber, silicone and polyurethane. These materials can not only effectively increase the friction, but also absorb and buffer the vibration generated in the machining process to a certain extent, so as to protect the surface of the workpiece from being damaged.

[0034] Working principle of the application:

[0035] The annular workpiece is placed on the supporting seat 12, the lathe pull rod or the cylinder makes the driving rod 2 and the supporting rod 14 descend, the wedge-shaped block 3 above the driving rod 2 descends, the clamping piece 5 slidingly connected with the wedge-shaped block 3 moves along the sliding groove 4 to the direction close to the driving rod 2, in the process of approaching each other of the three clamping pieces 5, the central axis of the workpiece and the central axis of the driving rod 2 are collinear and the workpiece is clamped in the horizontal direction, at the same time, in the descending process of the wedge-shaped block 3, the mounting seat 8 is driven to move downward by the elastic force of the elastic piece 7, in the downward movement process of the mounting seat 8, the guiding groove 9 drives the pressing piece 6 to rotate along the inclined groove 902 to the direction of approaching each other, and then along the vertical groove 901 to press the upper end surface of the workpiece downward and axially, the bottom of the mounting seat 8 is provided with the universal ball head 11, the universal ball head 11 can swing in the containing cavity 15, so that the three pressing pieces 6 cannot interfere with each other in stroke, and each pressing piece 6 can effectively contact and press the workpiece.

[0036] After the processing is completed, the lathe pull rod or the air cylinder makes the driving rod 2 and the supporting rod 14 rise, the wedge-shaped block 3 above the driving rod 2 rises, the clamping pieces 5 connected with the wedge-shaped block 3 slide and move away from the driving rod 2 along the sliding groove 4, in the process of moving away from each other, the workpiece is loosened in the horizontal direction, at the same time, the wedge-shaped block 3 drives the mounting seat 8 to move upward through the pulling force of the elastic piece 7, in the process of upward movement of the mounting seat 8, the guide groove 9 drives the pressing piece 6 to first loosen the workpiece upward along the vertical groove 901, and then rotates along the inclined groove 902 in the direction of moving away from each other, and the upper end surface of the workpiece is axially pressed upward, so that the workpiece is convenient to take out.

[0037] Compared with the positioning method of processing the workpiece in a single direction, the positioning processing is more stable, the processing precision is higher, the processing rhythm and efficiency are improved, and the structure is reasonable.

[0038] In the description of the present application, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0040] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. An automatic tooling for the inner hole end surface of a toroidal ring, characterized by, It includes: The fixed seat (1) is provided with a cavity (101) in the fixed seat (1), the driving rod (2) is vertically and slidably connected in the cavity (101), and the elastic member (7) is sleeved on the driving rod (2); The self-centering assembly includes a wedge block (3) and a plurality of clamping pieces (5) slidably connected with the wedge block (3), the wedge block (3) is fixedly connected above the driving rod (2), the upper end of the elastic member (7) is fixedly connected to the bottom of the wedge block (3), the clamping pieces (5) are radially and slidably connected to the fixed seat (1), and the driving rod (2) drives the plurality of clamping pieces (5) to move away from or close to each other when the driving rod (2) rises or falls, so as to loosen or clamp the workpiece in the horizontal direction. The pressing assembly includes a mounting seat (8) slidably connected with the driving rod (2), the lower end of the elastic member (7) is fixedly connected to the mounting seat (8), and a plurality of pressing pieces (6) are rotatably connected to one end of the mounting seat (8) away from the driving rod (2), so that the plurality of pressing pieces (6) are driven to move away from or close to each other when the driving rod (2) rises or falls, so as to loosen or press the workpiece in the vertical direction.

2. The automatic tooling for the inner hole end face of the ring of the bicycle as claimed in claim 1, characterized in that: The pressing assembly includes a plurality of through holes (102) uniformly opened in the side wall of the fixed seat (1), the mounting seat (8) is vertically and slidably connected with the fixed seat (1) through the through hole (102), the mounting seat (8) is rotatably connected with the pressing piece (6) away from the driving rod (2), the pressing piece (6) is provided with a guide groove (9), and a limiting column (10) is fixedly installed on the fixed seat (1). The limiting column (10) is arranged in the guide groove (9).

3. The automatic tooling for the inner hole end face of the ring of the bicycle as claimed in claim 2, characterized in that: The guide groove (9) includes a vertical groove (901) and an inclined groove (902) arranged below the vertical groove (901), and the inclined groove (902) is inclined to the driving rod (2).

4. The automatic tooling for the inner hole end face of the ring of the bicycle as claimed in claim 2, characterized in that: A universal ball head (11) is fixedly connected to the center position of the bottom of the mounting seat (8), and the universal ball head (11) is slidably connected to the driving rod (2).

5. The automatic tooling for the inner hole end face of the ring of the bicycle as claimed in claim 4, characterized in that: The lower end of the driving rod (2) is fixedly connected with a supporting rod (14), the upper end of the supporting rod (14) is provided with an accommodating cavity (15), and the universal ball head (11) can swing in the accommodating cavity (15).

6. The automatic tooling for the inner hole end face of the ring of the bicycle as claimed in claim 2, characterized in that: The pressing piece (6) includes a vertical rod (601) arranged vertically and a vertical rod (602) vertically arranged above the vertical rod (601), and the guide groove (9) is arranged on the vertical rod (601).

7. The automatic tooling for the inner hole end face of the ring of the bicycle as claimed in claim 2, characterized in that: A plurality of mounting plate groups are fixedly installed on the side wall of the fixed seat (1), each mounting plate group is provided with two mounting plates (13), the limiting column (10) is fixedly installed between the two mounting plates (13), and the pressing piece (6) is slidably connected with the limiting column (10).

8. The automatic tooling for the inner hole end surface of the ring of the bicycle as claimed in claim 1, characterized in that: The clamping piece (5) is provided with at least three, the wedge block (3) is provided with a sliding groove (4) matched with the number of clamping pieces (5), and the upper end of the sliding groove (4) is inclined to the center of the wedge block (3).

9. The automatic tooling for the inner hole end surface of the ring of the bicycle as claimed in claim 1, characterized in that: The clamping piece (5) comprises a horizontal sliding connection crossbar (501) of the fixed seat (1) and a bent hook portion (502) fixedly connected with the upper end of the crossbar (501).

10. The automatic tooling for the inner hole end surface of the toroidal ring for a vehicle as claimed in claim 1, characterized in that: A supporting seat (12) is arranged above the fixed seat (1).

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