A processing device and method for long strip castings

Abstract

This invention relates to the field of casting processing technology, and more particularly to a processing device for elongated castings, comprising a base, a driving device, a support, and a fixing unit. Each fixing unit includes a positioning post, a positioning block, a pad block, a clamping block, and a locking device for fixing the clamping block. The positioning block has grooves at both ends of its bottom, and the pad block has a boss in its middle. When fixing the elongated casting, the positioning block cooperates with the positioning post; the grooves at both ends of the positioning block abut against the outer wall of the connecting hole in the middle of the elongated casting, the boss abuts against the weight-reducing groove of the elongated casting, and the two ends of the clamping block abut against the arc surfaces of two elongated castings. This invention, through a single clamping operation, can process the A-side, edges, and connecting holes not perpendicular to the A-side of the elongated casting, completing four processing steps of the casting with only two clamping operations, greatly improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of casting processing technology, and in particular to a processing apparatus and method for long strip castings. Background Technology

[0002] like Figure 1 As shown, the elongated casting has surfaces A, B, and C. Surfaces A and B are located at opposite ends of the connecting hole, and are not parallel, with an angle between them. The axis of the connecting hole is perpendicular to surface B. Surface C has a weight-reducing hole and is not perpendicular to surface A. The elongated casting blank requires multiple machining processes, including milling surfaces A and B, machining the connecting hole, and milling the top edge of surface A.

[0003] In the existing technology, when machining long strip castings, only one process can be completed in one clamping. Therefore, to complete the machining of long strip castings, at least four clampings are required. This is not only time-consuming and labor-intensive, increasing production costs and reducing production efficiency, but also makes it difficult to guarantee the accuracy of the machined product. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a long strip casting processing device and method. The device is reasonably designed and easy to use. It can perform multiple processing steps in one clamping, thereby improving production efficiency and ensuring the accuracy of the processed product.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a long strip casting processing device, including a base; a driving device for driving the base to rotate; a support disposed above the base; and a fixing unit for fixing two symmetrically placed long strip castings. Several sets of fixing units are disposed above the support. Each set of fixing units includes a positioning post, a positioning block, a pad, a clamping block, and a locking device for fixing the clamping block. The positioning block has grooves at both ends at its bottom, and the pad has a boss in the middle. When fixing the long strip castings, the positioning block cooperates with the positioning post. The grooves at both ends of the positioning block abut against the outer wall of the connecting hole in the middle of the long strip casting, the boss abuts against the weight-reducing groove of the long strip casting, and the two ends of the clamping block abut against the arc surfaces of the two long strip castings, thereby fixing the two symmetrical long strip castings.

[0006] Furthermore, the upper surface of the inner side of the pad is higher than the upper surface of the outer side of the pad, but lower than the upper surface of the boss.

[0007] Furthermore, the two ends of the clamping block are arc surfaces. After the clamping block clamps the elongated casting, the arc surface of the clamping block matches the arc surface of the elongated casting.

[0008] Furthermore, after the clamping block clamps the elongated casting, the upper surface of the end of the clamping block is not higher than the height of the edge of the elongated casting after machining.

[0009] Furthermore, along the depth direction of the groove, the diameter of the groove first gradually decreases, and then remains constant.

[0010] Furthermore, each of the fixed units is provided with at least two positioning columns, which are perpendicular to the support.

[0011] Furthermore, the locking device is a pneumatic cylinder or a hydraulic cylinder, or the locking device includes a screw and a locking nut, wherein the screw is perpendicular to the support.

[0012] On the other hand, a method for processing a long strip casting includes the following steps:

[0013] (1) Positioning and fixing: The inner wall of the weight reduction groove of the long strip casting is used as the positioning reference. The long strip casting is fixed by the processing device. After fixing, the A surface of the long strip casting is perpendicular to the base.

[0014] (2) Edge machining: The base is horizontal, and the milling mechanism mills the edges of the long strip casting;

[0015] (3) Machining of surface A of the long strip casting: Rotate the base to make it vertical and mill surface A of the long strip casting;

[0016] (4) Machining of connecting holes: Rotate the base so that the base is at an angle to the vertical plane and machine the connecting holes of the long strip casting;

[0017] (5) Machining of the B side of the long strip casting: Using the A side of the machined long strip casting as the positioning reference, fix the long strip casting on another fixing mechanism. After fixing, the axis of the machined connecting hole is vertical, and the B side of the long strip casting is machined.

[0018] Furthermore, in the machining steps of the connecting hole, the angle between the base and the vertical plane is consistent with the angle between surface A and surface B of the elongated casting.

[0019] Furthermore, during the machining of side B of the elongated casting, side A of the elongated casting is in contact with the fixing surface of the other fixing mechanism. The fixing surface of the other fixing mechanism is a smooth inclined surface, and the angle of the inclined surface is equal to the angle between side A and side B of the elongated casting.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention uses a fixing unit to symmetrically fix two elongated castings. During fixing, the positioning block of the fixing unit, under the positioning action of the positioning column, abuts against and clamps against the outer wall of the connecting hole of the elongated casting through the groove below the positioning block. Simultaneously, with the cooperation of the boss of the pad block, the elongated casting is fixed above the pad block. Then, the two ends of the elongated casting are fixed by the clamping block and the locking device, finally fixing the elongated casting symmetrically on the fixing unit. The processing device of this invention, after sequential clamping, can realize the processing of the A-side, edges, and connecting holes that are not perpendicular to the A-side of the elongated casting.

[0022] 2. This invention uses a pad block to cooperate with the weight reduction groove of the elongated casting. Through the structural design of the pad block, after the elongated casting is fixed above the pad block, the A-side of the elongated casting is perpendicular to the base or support, which facilitates the processing of the A-side, edges, and connecting holes that are not perpendicular to the A-side of the casting. At the same time, the pad block ensures sufficient processing space when processing the connecting holes.

[0023] 3. This invention can complete the machining of the A-side, edges, connecting holes that are not perpendicular to the A-side, and the B-side that is not parallel to the A-side of a long strip casting by clamping twice, which greatly improves the machining efficiency and helps to ensure the quality of the machined product. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a top view of the present invention.

[0026] Figure 3 It is along Figure 2 A sectional view along the AA direction.

[0027] Figure 4 It is along Figure 2 A cross-sectional view along the BB direction.

[0028] Figure 5 This is a structural diagram of the present invention.

[0029] Figure 6 yes Figure 5 Enlarged view of a local structure.

[0030] Figure 7 This is a front view of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1—Base, 2—Support, 3—Long strip casting, 31—Surface A, 32—Surface B, 33—Edge, 34—Connecting hole, 35—Curved surface, 4—Fixing unit, 41—Positioning post, 42—Positioning block, 421—Groove, 43—Padded block, 44—Pressure block, 45—Locking device. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0034] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] like Figures 1-7As shown, this embodiment of a long strip casting processing device includes a base 1 and a driving device for driving the base 1 to rotate. A support 2 is provided above the base 1. Along the length direction of the base 1, several sets of fixing units 4 for fixing long strip castings 3 are provided above the support 2. Each set of fixing units 4 can fix two symmetrically placed long strip castings 3. Each set of fixing units 4 includes a positioning post 41, a positioning block 42, a pad block 43, a clamping block 44, and a locking device 45 for fixing the clamping block 44. The positioning block 42 has grooves 421 at both ends of its bottom, and the pad block 43 has a boss in the middle. When fixing the long strip castings 3, the positioning block 42... Preferably, the positioning block 42 is provided with positioning holes that cooperate with the positioning post 41. The positioning post 41 is used to position the positioning block 42 along the length and width directions of the base 1, so that the grooves 421 at both ends of the positioning block 42 abut against the outer wall of the middle connecting hole 34 of the elongated casting 3, thereby ensuring the positioning block 42 fixes and positions the elongated casting 3. The side wall of the boss abuts against the inner wall of the weight-reducing groove 421 of the elongated casting 3. The locking device 45 locks the clamping block 44. The two ends of the clamping block 44 abut against the arc surfaces 35 of the two elongated castings 3, thereby fixing the two elongated castings 3 symmetrically. Preferably, each set of fixing devices is provided with two clamping blocks 44, which clamp the two ends of the elongated casting 3 respectively.

[0037] The working principle of this invention is as follows: Each fixing unit 4 fixes two symmetrically placed elongated castings 3. After the two elongated castings 3 are placed above the pad 43, the positioning block 42 is fitted onto the positioning post 41, and at the same time, the groove 421 at the bottom of the positioning block 42 abuts against the outer wall of the connecting hole 34 in the middle of the elongated casting 3. Under the action of the positioning block 42, the two symmetrically placed elongated castings 3 are squeezed by the positioning block 42, and the two elongated castings 3 move in opposite directions, so that the inner wall of the weight-reducing groove 421 of the elongated casting 3 abuts against the inner side wall of the boss. Through the action of the boss and the positioning block 42, the positioning and fixing of the elongated castings 3 are realized. Then, the pressing block 44 presses and abuts against the two ends of the arc surface 35 of the elongated casting 3, and the locking device 45 fixes and locks the pressing block 44, thereby realizing the fixing of the elongated castings 3, which facilitates the processing of the edges 33, A surface 31 and connecting hole 34 of the elongated castings 3.

[0038] The upper surface of the inner side of the pad 43 is higher than the upper surface of the outer side of the pad 43 but lower than the upper surface of the boss. The inner side of the pad 43 refers to the end near the clamping block 44, and the outer side of the pad 43 refers to the end away from the clamping block 44. After the elongated casting 3 is placed above the pad 43, the boss and the elongated casting 3 are in clearance fit, that is, the contact line or surface of the boss and the elongated casting 3 is in clearance fit with the inner wall of the weight reduction groove. After the elongated casting 3 is placed above the pad 43, the boss in the middle of the pad 43 is located inside the weight reduction groove. By using the different heights of the upper surfaces of the inner and outer sides of the pad 43, the elongated casting 3 is fixed above the support 2, and the A surface 31 of the elongated casting 3 is perpendicular to the base 1 or the support 2. Through the action of the positioning block 42, the elongated casting 3 is pushed outward, thereby achieving the positioning of the elongated casting 3 under the action of the boss. Meanwhile, since the axis of the connecting hole 34 is not parallel to the support 2 and the included angle is small when machining the connecting hole 34, the casting can be supported by the pad block 43, so that there is enough drilling space when machining the connecting hole 34.

[0039] The two ends of the clamping block 44 are arc surfaces. After the clamping block 44 clamps the elongated casting 3, the arc surface of the clamping block 44 cooperates with the arc surface 35 of the elongated casting 3. On the one hand, it can clamp the elongated casting 3 so that the inner wall of the weight reduction groove of the elongated casting 3 abuts against the side of the boss. On the other hand, when the base 1 is flipped to process the A surface 31 and the connecting hole 34 of the elongated casting 3, it is convenient for the clamping block 44 to support the inner side of the A surface 31 of the elongated casting 3.

[0040] After the clamping block 44 clamps the elongated casting 3, the upper surface of the end of the clamping block 44 is not higher than the height of the edge 33 of the elongated casting 3 after machining, so as to avoid the clamping block 44 being too high and affecting the milling of the edge 33.

[0041] Along the depth direction of the groove 421, the diameter of the groove 421 gradually decreases first and then remains constant, which facilitates the groove 421 to quickly and accurately engage the outer wall of the middle connecting hole 34 of the elongated casting 3, thereby positioning the casting along the length direction of the base 1, i.e. the length direction of the elongated casting 3; along the width direction of the base 1, the positioning block 42 exerts an outward pushing force on the casting, so that the inner wall of the weight-reducing groove of the elongated casting 3 is tightly attached to the inner side wall of the boss, which helps to ensure the accuracy and consistency of the processing of the symmetrically placed elongated castings 3.

[0042] Each set of fixed units 4 is provided with at least two positioning posts 41. The positioning posts 41 are perpendicular to the support 2, which facilitates the positioning and support of the positioning block 42. This ensures that, under the action of the positioning posts 41, the positioning block 42 can position the two symmetrically placed elongated castings 3 fixed in each set of fixed units 4, and ensures that, under the action of the positioning block 42, the inner walls of the weight reduction grooves of the two symmetrically placed elongated castings 3 are in contact with the inner walls of the boss.

[0043] The locking device 45 is a cylinder or a hydraulic cylinder, or the locking device 45 includes a screw and a locking nut. The screw is perpendicular to the support 2. After the pressing block 44 is sleeved on the outside of the screw, the locking nut is tightened to fix and press the pressing block 44.

[0044] A method for machining a long strip casting includes the following steps:

[0045] (1) Positioning and fixing: Using the inner wall of the weight reduction groove of the long strip casting 3 as the positioning reference, the two long strip castings 3 are fixed by the processing device. After fixing, the A surface 31 of the long strip casting 3 is perpendicular to the base 1.

[0046] (2) Machining of edge 33: The base 1 is horizontal, and the milling mechanism mills the edge 33 of the long strip casting 3;

[0047] (3) Machining of surface 31 of the long strip casting 3: Rotate the base 1 to make the base 1 vertical, and mill the surface 31 of the long strip casting 3;

[0048] (4) Machining of connecting hole 34: Rotate base 1 so that base 1 is set at an angle with the vertical plane. The degree of the angle is consistent with the angle between surface A 31 and surface B 32 of the long strip casting 3. Machining of connecting hole 34 of long strip casting 3.

[0049] (5) Machining of surface B 32 of the elongated casting 3: Using surface A 31 of the machined elongated casting 3 as the positioning reference, fix the elongated casting 3 to another fixing mechanism. After fixing, the axis of the machined connecting hole 34 is vertical, and surface B 32 of the elongated casting 3 is machined. During the machining process, the order of (2), (3), and (4) is not fixed and can be adjusted as needed.

[0050] During the machining of surface B 32 of the elongated casting 3, surface A 31 of the elongated casting 3 is in contact with the fixing surface of the other fixing mechanism. The fixing surface of the other fixing mechanism is a smooth inclined surface, and the angle of the inclined surface is equal to the angle between surface A 31 and surface B 32 of the elongated casting 3.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A long strip casting processing device, characterized in that: comprising a base; a driving device for driving the base to rotate; a support arranged above the base; a fixing unit for fixing two symmetrical long strip castings, a plurality of groups of the fixing unit are arranged above the support, each group of the fixing unit comprises a positioning column, a positioning block, a cushion block, a pressing block and a locking device for fixing the pressing block; the bottom of the positioning block is provided with a groove at both ends, the middle of the cushion block is provided with a boss; after the two long strip castings are fixed symmetrically above the cushion block, the positioning block cooperates with the positioning column, the groove at both ends of the positioning block respectively abuts against the outer wall of the middle connecting hole of the long strip casting, the boss abuts against the inner wall of the weight-reducing groove of the long strip casting, and the ends of the pressing block respectively abut against the curved surfaces of the two long strip castings; the long strip casting is provided with an A surface and a B surface, the A surface and the B surface are respectively located at both ends of the connecting hole, the A surface and the B surface are non-parallel surfaces, a certain angle is arranged between the A surface and the B surface, the axis of the connecting hole is perpendicular to the B surface, and the A surface of the long strip casting is perpendicular to the base or the support after the long strip casting is fixed above the cushion block. The upper surface of the inner side of the cushion block is higher than the upper surface of the outer side of the cushion block and lower than the upper surface of the boss. The ends of the pressing block are curved surfaces, and the curved surfaces of the pressing block cooperate with the curved surfaces of the long strip casting after the pressing block presses the long strip casting. The upper surface of the end of the pressing block is not higher than the height of the edge of the long strip casting after the pressing block presses the long strip casting. In the depth direction of the groove, the caliber of the groove gradually decreases first and then remains unchanged. Each group of the fixing unit is provided with at least two positioning columns, and the positioning columns are perpendicular to the support.

2. The long strip cast product processing apparatus of claim 1 wherein: The locking device is a pneumatic cylinder or a hydraulic cylinder, or the locking device comprises a screw rod and a locking nut, and the screw rod is perpendicular to the support.

3. The long strip cast product processing apparatus of claim 1 wherein: The device comprises the following steps:

4. The long strip cast product processing apparatus of claim 1 wherein: (1) positioning and fixing: taking the inner wall of the weight-reducing groove of the long strip casting as a positioning reference, the long strip casting is fixed by using the processing device, and the A surface of the long strip casting is perpendicular to the base after being fixed; 5. The long strip cast product processing apparatus of claim 1 wherein: (2) edge processing: the base is horizontal, and a milling mechanism mills the edge of the long strip casting; 6. The long strip cast product processing apparatus of claim 1 wherein: (3) A surface processing of the long strip casting: the base is rotated to be vertical, and the A surface of the long strip casting is milled; 7. The long strip cast product processing apparatus of claim 1 wherein: (4) connecting hole processing: the base is rotated to be arranged at an angle with the vertical surface, and the connecting hole of the long strip casting is processed; 8. A method of processing a long strip cast product using the processing apparatus according to any one of claims 1 to 7, characterized by: (5) B surface processing of the long strip casting: taking the A surface of the long strip casting after processing as a positioning reference, the long strip casting is fixed on another fixing mechanism, the axis of the processed connecting hole is vertical after being fixed, and the B surface of the long strip casting is processed. In the connecting hole processing step, the angle between the base and the vertical surface is consistent with the angle between the A surface and the B surface of the long strip casting. In the B surface processing process of the long strip casting, the A surface of the long strip casting is attached to the fixing surface of the other fixing mechanism, and the fixing surface of the other fixing mechanism is a smooth inclined surface. ​ ​ ​ 9. The method of claim 8, wherein: ​ 10. The method of claim 8, wherein: ​

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