Long-strip-shaped casting machining device and machining method

Abstract

The invention relates to the technical field of casting machining, in particular to a long-strip-shaped casting machining device which comprises a base, a driving device, a support and fixing units, and each fixing unit comprises a positioning column, a positioning block, a cushion block, a pressing block and a locking device used for fixing the pressing block; grooves are formed in the two ends of the bottom of the positioning block, and a boss is arranged in the middle of the cushion block. When the long-strip-shaped castings are fixed, the positioning block is matched with the positioning column, the grooves in the two ends of the positioning block abut against the outer walls of connecting holes in the middles of the long-strip-shaped castings respectively, the bosses abut against weight reduction grooves of the long-strip-shaped castings, and the two ends of the pressing block abut against the cambered surfaces of the two long-strip-shaped castings respectively. By means of one-time clamping, machining of the A face, the edges and the connecting holes not perpendicular to the A face of the long-strip-shaped casting can be achieved, machining of four working procedures of the casting is completed, only two times of clamping are needed, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of casting processing, and in particular to a long strip casting processing device and a processing method. Background Art

[0002] like Figure 1 As shown, the long strip casting has sides A, B, and C. Sides A and B are located at either end of the connecting hole. Sides A and B are non-parallel and angled with each other. The axis of the connecting hole is perpendicular to side B. Side C has a lightening hole and is not perpendicular to side A. The long strip casting requires multiple machining steps, including milling of sides A and B, machining of the connecting hole, and milling of the top edge of side A.

[0003] In the prior art, when processing long strip castings, one clamping can only complete one process. Therefore, at least four clampings are required to complete the processing of the long strip casting. This is not only time-consuming and labor-intensive, but also increases production costs and reduces production efficiency. In addition, the accuracy of the processed products is difficult to guarantee. Summary of the Invention

[0004] The purpose of the present invention is to provide a long strip casting processing device and processing method to address the shortcomings of the existing technology. The device and processing method are reasonable in design and easy to use. Through one clamping, multiple processes can be processed, production efficiency is improved, and the accuracy of the processed products is guaranteed.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a long strip casting processing device, including a base; a driving device for driving the base to rotate; a support arranged above the base; a fixing unit for fixing two symmetrically placed long strip castings, and several groups of the fixing units are arranged above the support, and each group of the fixing units includes a positioning column, a positioning block, a cushion block, a clamping block and a locking device for fixing the clamping block; grooves are provided at both ends of the bottom of the positioning block, and a boss is provided in the middle of the cushion block; when fixing the long strip casting, the positioning block cooperates with the positioning column, and the grooves at both ends of the positioning block respectively conflict with the outer wall of the middle connecting hole of the long strip casting, the boss conflicts with the weight-reducing groove of the long strip casting, and the two ends of the clamping block respectively conflict with the arc surfaces of the two long strip castings, thereby realizing the fixation of two symmetrical long strip castings.

[0006] Furthermore, 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.

[0007] Furthermore, both ends of the pressing block are arcuate surfaces. After the pressing block presses the elongated casting, the arcuate surfaces of the pressing block match the arcuate surfaces of the elongated casting.

[0008] Furthermore, after the pressing block presses the elongated casting, the upper surface of the end portion of the pressing block is no higher than the height of the edge of the elongated casting after processing.

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

[0010] Furthermore, each group of the fixing units is provided with at least two positioning columns, and the positioning columns 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, and the screw is perpendicular to the support.

[0012] On the other hand, a method for processing a long strip casting comprises the following steps: (1) Positioning and fixing: Using the inner wall of the weight-reducing groove of the long strip casting as the positioning reference, the long strip casting is fixed by the processing device, and after fixing, the A surface of the long strip casting is perpendicular to the base; (2) Edge processing: The base is horizontal, and the milling mechanism mills the edges of the long strip casting; (3) Processing of the A surface of the long strip casting: rotate the base to make it vertical, and perform milling on the A surface of the long strip casting; (4) Processing of connecting holes: rotate the base to set the angle between the base and the vertical plane, and process the connecting holes of the long strip casting; (5) Processing of the B side of the long strip casting: Using the A side of the processed long strip casting as the positioning reference, the long strip casting is fixed on another fixing mechanism. After fixation, the axis of the processed connecting hole is vertical, and the B side of the long strip casting is processed.

[0013] Furthermore, in the step of processing the connecting hole, 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.

[0014] Furthermore, during the processing of the B surface of the elongated casting, the A surface of the elongated casting is fitted with the fixing surface of the other fixing mechanism, and 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 the A surface and the B surface of the elongated casting.

[0015] The beneficial effects of the present invention are: 1. The present invention utilizes a fixing unit to symmetrically fix two elongated castings. During fixation, the positioning block of the fixing unit, under the positioning action of the positioning column, abuts and clamps the outer wall of the connecting hole of the elongated casting through the groove below the positioning block. Simultaneously, the boss of the spacer cooperates to fix the elongated casting above the spacer. The two ends of the elongated casting are then fixed by a clamping block and a locking device, and finally the elongated casting is symmetrically fixed to the fixing unit. After sequential clamping, the processing device of the present invention can realize the processing of the A surface, edges, and connecting holes that are not perpendicular to the A surface of the elongated casting.

[0016] 2. The present invention cooperates with the weight-reducing groove of the elongated casting through the cushion block and designs the structure of the cushion block so that after the elongated casting is fixed on top of the cushion block, the A surface of the elongated casting is perpendicular to the base or support, which facilitates the processing of the A surface, edges and connecting holes that are not perpendicular to the A surface of the casting; at the same time, the cushion block is set to ensure sufficient processing space when processing the connecting hole.

[0017] 3. The present invention can complete the processing of the A surface, edges, connecting holes that are not perpendicular to the A surface, and the B surface that is not parallel to the A surface of the long strip casting through two clampings, which greatly improves the processing efficiency and is conducive to ensuring the quality of the processed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a top view of the present invention.

[0020] Figure 3 It is along Figure 2 Cross-sectional view in the AA direction.

[0021] Figure 4 It is along Figure 2 Cross-sectional view in the BB direction.

[0022] Figure 5 It is a structural diagram of the present invention.

[0023] Figure 6 yes Figure 5 Enlarged view of the local structure.

[0024] Figure 7 It is a front view of the present invention.

[0025] Description of reference numerals: 1 - base, 2 - support, 3 - long strip casting, 31 - surface A, 32 - surface B, 33 - edge, 34 - connecting hole, 35 - arc surface, 4 - fixing unit, 41 - positioning column, 42 - positioning block, 421 - groove, 43 - pad, 44 - pressing block, 45 - locking device. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0027] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore 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.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] like Figure 1-Figure 7As shown, a long strip casting processing device of this embodiment includes a base 1 and a driving device for driving the base 1 to rotate, a support 2 is provided above the base 1, and along the length direction of the base 1, a plurality of groups of fixing units 4 for fixing the long strip casting 3 are provided above the support 2, each group of fixing units 4 can fix two symmetrically placed long strip castings 3, each group of the fixing units 4 includes a positioning column 41, a positioning block 42, a cushion block 43, a pressing block 44 and a locking device 45 for fixing the pressing block 44, the bottom ends of the positioning block 42 are provided with grooves 421, and the middle part of the cushion block 43 is provided with a boss; when fixing the long strip casting 3, the positioning block 42 In cooperation with the positioning column 41, preferably, the positioning block 42 is provided with a positioning hole that cooperates with the positioning column 41. The positioning column 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 respectively conflict with the outer wall of the middle connecting hole 34 of the elongated casting 3 to ensure that the positioning block 42 fixes and positions the elongated casting 3; the side wall of the boss conflicts with the inner wall of the weight-reducing groove 421 of the elongated casting 3, and the locking device 45 locks the clamping block 44. The two ends of the clamping block 44 respectively conflict with the arc surface 35 of the two elongated castings 3 to achieve symmetrical fixation of the two elongated castings 3. Preferably, each set of fixing devices is provided with two clamping blocks 44, and the clamping blocks 44 respectively press the two ends of the elongated casting 3.

[0030] The working principle of the present invention is as follows: each set of fixing units 4 fixes two symmetrically placed elongated castings 3. After the two elongated castings 3 are placed above the spacer 43, the positioning block 42 is placed on the positioning column 41, and the groove 421 at the bottom of the positioning block 42 is caused to contact 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 contacts the inner wall of the boss. The boss and the positioning block 42 are used to position and fix the elongated casting 3. Then, the pressing block 44 is pressed and contacts 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 fixing the elongated casting 3 and facilitating the processing of the edge 33, the A surface 31, and the connecting hole 34 of the elongated casting 3.

[0031] 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 and lower than the upper surface of the boss. The inner side of the pad 43 refers to the end close to 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 on the pad 43, the boss and the elongated casting 3 are clearance-matched, that is, the contact line or surface between the boss and the elongated casting 3 and the inner wall of the weight-reducing groove are clearance-matched. After the elongated casting 3 is placed on the pad 43, the boss in the middle of the pad 43 is located inside the weight-reducing groove. Due to the different heights of the inner and outer upper surfaces of the pad 43, after the elongated casting 3 is fixed above the support 2, the A surface 31 of the elongated casting 3 is perpendicular to the base 1 or the support 2; the elongated casting 3 is pushed outward by the action of the positioning block 42, thereby realizing the positioning of the elongated casting 3 under the action of the boss. At the same time, since the axis direction of the connecting hole 34 is not parallel to the support 2 and the angle is small when the connecting hole 34 is processed, the casting can be supported by the pad 43, so that there is enough drilling space when processing the connecting hole 34.

[0032] The two ends of the pressing block 44 are arc surfaces. After the pressing block 44 presses the elongated casting 3, the arc surface of the pressing block 44 cooperates with the arc surface 35 of the elongated casting 3. On the one hand, it can press the elongated casting 3 so that the inner wall of the weight-reducing groove of the elongated casting 3 contacts the side of the boss. On the other hand, when the base 1 is flipped over to process the A surface 31 and the connecting hole 34 of the elongated casting 3, it is convenient for the pressing block 44 to support the inner side of the A surface 31 of the elongated casting 3.

[0033] After the pressing block 44 presses the elongated casting 3 , the upper surface of the end of the pressing block 44 is no higher than the height of the edge 33 of the elongated casting 3 after processing, so as to avoid the height of the pressing block 44 being too high and affecting the milling of the edge 33 .

[0034] Along the depth direction of the groove 421, the diameter of the groove 421 first gradually decreases and then remains unchanged, so that the groove 421 can quickly and accurately clamp the outer wall of the middle connecting hole 34 of the long strip casting 3, so that the casting can be positioned along the length direction of the base 1, that is, the length direction of the long strip casting 3; along the width direction of the base 1, the positioning block 42 generates an outward thrust on the casting, so that the inner wall of the weight-reducing groove of the long strip casting 3 is close to the inner wall of the boss, which is conducive to ensuring the accuracy and consistency of the processing of the symmetrically placed long strip castings 3.

[0035] Each group of the fixing units 4 is provided with at least two of the positioning columns 41, and the positioning columns 41 are perpendicular to the support 2, so as to facilitate positioning and supporting the positioning blocks 42, thereby ensuring that under the action of the positioning columns 41, the positioning blocks 42 can position the two symmetrically placed long strip castings 3 fixed in each group of the fixing units 4, and ensure that under the action of the positioning blocks 42, the inner walls of the weight-reducing grooves of the two symmetrically placed long strip castings 3 are in conflict with the inner wall of the boss.

[0036] 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 clamping block 44 is sleeved on the outside of the screw, the locking nut is tightened to fix and clamp the clamping block 44.

[0037] A method for processing a long strip casting comprises the following steps:

[0038] (1) Positioning and fixing: Using the inner wall of the weight-reducing groove of the long strip casting 3 as the positioning reference, the two long strip castings 3 are fixed by a processing device. After fixing, the A surface 31 of the long strip casting 3 is perpendicular to the base 1;

[0039] (2) Processing of the edge 33: The base 1 is horizontal, and the milling mechanism performs milling processing on the edge 33 of the long strip casting 3;

[0040] (3) Processing of the A surface 31 of the long strip casting 3: rotating the base 1 to make the base 1 vertical, and performing milling on the A surface 31 of the long strip casting 3;

[0041] (4) Processing of the connecting hole 34: Rotate the base 1 so that the included angle between the base 1 and the vertical plane is consistent with the included angle between the A surface 31 and the B surface 32 of the long strip casting 3, and process the connecting hole 34 of the long strip casting 3;

[0042] (5) Processing of the B surface 32 of the long strip casting 3: Using the processed A surface 31 of the long strip casting 3 as the positioning reference, the long strip casting 3 is fixed to another fixing mechanism. After fixing, the axis of the processed connecting hole 34 is vertical, and the B surface 32 of the long strip casting 3 is processed. During the processing, the order of (2), (3), and (4) is not fixed and can be adjusted as needed.

[0043] During the processing of the B surface 32 of the elongated casting 3, the A surface 31 of the elongated casting 3 is fitted 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 the A surface 31 and the B surface 32 of the elongated casting 3.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents 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: Including base; A driving device, used for driving the base to rotate; A support is provided above the base; A fixing unit for fixing two symmetrically placed long strip castings, wherein several groups of the fixing units are arranged above the support, and each group of the fixing units includes a positioning column, a positioning block, a cushion block, a clamping block and a locking device for fixing the clamping block; grooves are provided at both ends of the bottom of the positioning block, and a boss is provided in the middle of the cushion block; after the two long strip castings are symmetrically fixed above the cushion block, the positioning block cooperates with the positioning column, and the grooves at both ends of the positioning block respectively conflict with the outer wall of the middle connecting hole of the long strip casting, the boss conflicts with the inner wall of the weight-reducing groove of the long strip casting, and the two ends of the clamping block respectively conflict with the arc surface of the two long strip castings.

2. The long strip casting processing device according to claim 1, characterized in that: 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.

3. The long strip casting processing device according to claim 1, characterized in that: Both ends of the pressing block are arcuate surfaces. After the pressing block presses the long strip casting, the arcuate surfaces of the pressing block match the arcuate surfaces of the long strip casting.

4. The device for processing long strip castings according to claim 1, characterized in that: After the pressing block presses the long strip casting, the upper surface of the end portion of the pressing block is no higher than the height of the edge of the long strip casting after processing.

5. The device for processing long strip castings according to claim 1, characterized in that: Along the depth direction of the groove, the diameter of the groove first gradually decreases and then remains unchanged.

6. The device for processing long strip castings according to claim 1, characterized in that: Each group of the fixing units is provided with at least two positioning columns, and the positioning columns are perpendicular to the support.

7. The device for processing long strip castings according to claim 1, characterized in that: The locking device is a pneumatic cylinder or a hydraulic cylinder, or the locking device includes a screw and a locking nut, and the screw is perpendicular to the support.

8. A processing method using the long strip casting processing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) Positioning and fixing: Using the inner wall of the weight-reducing groove of the long strip casting as the positioning reference, the long strip casting is fixed by the processing device, and after fixing, the A surface of the long strip casting is perpendicular to the base; (2) Edge processing: The base is horizontal, and the milling mechanism mills the edges of the long strip casting; (3) Processing of the A surface of the long strip casting: rotate the base to make it vertical, and perform milling on the A surface of the long strip casting; (4) Processing of connecting holes: rotate the base to set the angle between the base and the vertical plane, and process the connecting holes of the long strip casting; (5) Processing of the B side of the long strip casting: Using the A side of the processed long strip casting as the positioning reference, the long strip casting is fixed on another fixing mechanism. After fixation, the axis of the processed connecting hole is vertical, and the B side of the long strip casting is processed.

9. The method for processing a long strip casting according to claim 8, characterized in that: In the processing step of the connecting hole, the degree of 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.

10. The method for processing a long strip casting according to claim 8, characterized in that: During the processing of the B surface of the long strip casting, the A surface of the long strip casting is fitted with the fixing surface of the other fixing mechanism, and the fixing surface of the other fixing mechanism is a smooth inclined surface.

Images