Machining tool for complex thin-wall casting

Abstract

The utility model relates to a machining tool for a complex thin-wall casting, which comprises a lower die, guide posts fixedly mounted at four corners of the top of the lower die, an upper die mounted on the surfaces of the guide posts in a sliding manner, a top plate fixedly mounted at the bottom ends of the guide posts, and a pressing component arranged on the top plate and used for driving the upper die to move up and down, the pressing assembly comprises a fixing nut fixedly installed at the bottom of the top plate. According to the machining tool for the complex thin-wall casting, the pressing assembly is arranged on the top plate, during machining, an adjusting knob on the pressing assembly is rotated, the upper mold is driven to ascend, then the casting is placed on the lower mold, the upper mold is driven to descend through the adjusting knob, and the casting is clamped between the upper mold and the lower mold; and then through the first machining through hole and the second machining through hole, the two side faces of the casting are subjected to hole machining, and the problem that a common machining tool is not suitable for clamping and machining similar products is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing tooling, in particular to a processing tooling for complex thin-walled castings. Background Technique

[0002] A casting is a metal formed object obtained by various casting methods, that is, the smelted liquid metal is injected into a pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling and subsequent processing means such as grinding, an object with a certain shape, size and performance is obtained. Castings are usually used as blanks for machine parts, and some precision castings can also be directly used as machine parts.

[0003] There are various classification methods for castings: according to the different metal materials used, they are divided into steel castings, iron castings, copper castings, aluminum castings, etc.; and each type of casting can be further divided into different types according to its chemical composition or metallographic structure. For example, iron castings can be divided into gray iron castings, ductile iron castings, vermicular graphite iron castings, malleable iron castings, alloy iron castings, etc.

[0004] The surfaces of some complex casting products need to be drilled. When drilling, a processing tooling is required to clamp the product. However, due to the complex shape of the product, common processing toolings are difficult to stably clamp such products, and the positioning of the holes is relatively difficult, and a special processing tooling needs to be set up for clamping.

[0005] One of the complex thin-walled casting products has an arc surface at the top, one of the two side walls protrudes and has an inner hole to be processed, the other side has an inner hole to be processed, and the two holes need to be processed under the same positioning reference. Common processing toolings are not suitable for clamping and processing such products. In view of this, this application proposes a processing tooling for complex thin-walled castings. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a processing tooling for complex thin-walled castings, which has the advantages of quick clamping and accurate positioning, and solves the problem that common processing toolings are not suitable for clamping and processing such products.

[0007] To achieve the above object, the utility model provides the following technical solution: A processing tooling for complex thin-walled castings, including a lower mold, guide columns fixedly installed at the four corners of the top of the lower mold, an upper mold slidably installed on the surface of the guide columns, a top plate fixedly installed at the top of the guide columns, and a pressing assembly arranged on the top plate for driving the upper mold to move up and down;

[0008] The pressing assembly includes a fixed nut fixedly installed at the bottom of the top plate, an adjusting screw rotatably installed at the top of the upper mold, and an adjusting knob fixedly installed at the top of the adjusting screw.

[0009] By adopting the above technical solution, the present application quickly drives the upper mold to move up and down on the surface of the guide pillar through the pressing assembly, quickly places the product between the upper mold and the lower mold, and fixes it.

[0010] Further, the fixing nut and the adjusting screw are threadedly connected, and the adjusting knob is located above the top plate.

[0011] The beneficial effect of adopting the above further solution is: rotating the adjusting knob drives the adjusting screw to rotate, so that the adjusting screw moves up and down under the action of the fixing nut. When the adjusting screw rises, it drives the upper mold to rise, and when the adjusting screw descends, it drives the upper mold to descend. Tighten the adjusting screw to clamp the upper mold and the lower mold.

[0012] Further, a lower installation groove is provided on one side of the lower mold, and a casting is placed in the lower installation groove.

[0013] The beneficial effect of adopting the above further solution is: after raising the upper mold, place the casting inside the lower installation groove, which is convenient for installing the casting.

[0014] Further, an upper installation groove symmetrical to the lower installation groove is provided at the bottom of the upper mold. A protrusion is provided at the top of the casting, and a positioning groove adapted to the protrusion is provided on the inner side wall of the upper mold.

[0015] The beneficial effect of adopting the above further solution is: when the upper mold descends, the positioning groove aligns with the protrusion at the top of the casting, so that the casting is installed in a limited position and installed between the upper mold and the lower mold.

[0016] Further, a first processing through hole is provided on one side of the upper mold, and a second processing through hole is provided on the side of the upper mold adjacent to the first processing through hole. The axes of the first processing through hole and the second processing through hole are perpendicular.

[0017] The beneficial effect of adopting the above further solution is: the first processing through hole and the second processing through hole are on the same datum. When machining holes on two sides of the casting, rapid positioning can be carried out through the first processing through hole and the second processing through hole, increasing the efficiency of hole machining.

[0018] Further, sliding through holes are provided at the four corners of the bottom of the upper mold, and the guide pillars are inserted into the sliding through holes.

[0019] The beneficial effect of adopting the above further solution is: when the upper mold and the lower mold are closed, the positioning is accurate and there will be no misalignment phenomenon, improving the accuracy of hole machining of the casting.

[0020] Further, a mounting bottom plate is fixedly installed at the bottom of the lower mold, and mounting through holes for fixing the mounting bottom plate on the mounting surface are provided on the top of the mounting bottom plate.

[0021] The beneficial effects of adopting the above further solution are as follows: The entire processing tooling is installed on the installation surface through the installation base plate, which facilitates the installation of the processing tooling.

[0022] Compared with the prior art, the present utility model provides a processing tooling for complex thin-walled castings, which has the following beneficial effects:

[0023] For the processing tooling of the complex thin-walled casting, by setting a pressing component on the top plate, during processing, by rotating the adjustment knob on the pressing component, the upper mold is driven to rise, then the casting is placed on the lower mold, and then the upper mold is driven to descend by the adjustment knob to clamp the casting between the upper mold and the lower mold. Then, through the first processing through-hole and the second processing through-hole, holes are processed on two sides of the casting, solving the problem that common processing tooling is not suitable for clamping and processing such products. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the present utility model;

[0025] Figure 2 It is a schematic side view of the structure of the present utility model;

[0026] Figure 3 It is a schematic front sectional view of the structure of the present utility model;

[0027] Figure 4 It is a three-dimensional schematic diagram of the upper mold of the present utility model.

[0028] In the figure: 1. Lower mold; 101. Lower installation groove; 2. Upper mold; 201. Upper installation groove; 202. Positioning groove; 203. First processing through-hole; 204. Second processing through-hole; 205. Sliding through-hole; 3. Guide post; 4. Top plate; 5. Pressing component; 51. Fixed nut; 52. Adjusting screw; 53. Adjustment knob; 6. Casting; 61. Protrusion; 7. Installation base plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1-4, A processing tooling for a complex thin-walled casting in this embodiment includes a lower mold 1, guide posts 3 fixedly installed at the four corners of the top of the lower mold 1, an upper mold 2 slidably installed on the surface of the guide posts 3, a top plate 4 fixedly installed at the top of the guide posts 3, and a pressing assembly 5 provided on the top plate 4 for driving the upper mold 2 to move up and down.

[0031] At the same time, a lower installation groove 101 is opened on one side of the lower mold 1, and a casting 6 is placed in the lower installation groove 101. The lower installation groove 101 is adapted to the bottom of the casting 6, and the casting 6 can be placed into the lower installation groove 101 from one side of the lower mold 1.

[0032] Among them, an upper installation groove 201 symmetric to the lower installation groove 101 is opened at the bottom of the upper mold 2. A protrusion 61 is provided at the top of the casting 6, and a positioning groove 202 adapted to the protrusion 61 is opened on the inner side wall of the upper mold 2. The protrusion 61 at the top of the casting 6 just fits into the positioning groove 202. At this time, the casting 6 is fixed and cannot move.

[0033] Secondly, a first processing through hole 203 is opened on one side of the upper mold 2, and a second processing through hole 204 is opened on the side of the upper mold 2 adjacent to the first processing through hole 203. The axes of the first processing through hole 203 and the second processing through hole 204 are perpendicular. Hole processing is performed on one side of the protrusion 61 of the casting 6 through the first processing through hole 203, and hole processing is performed on the side of the casting 6 adjacent to the protrusion 61 through the second processing through hole 204.

[0034] At the same time, the pressing assembly 5 includes a fixed nut 51 fixedly installed at the bottom of the top plate 4, an adjusting screw 52 rotatably installed at the top of the upper mold 2, and an adjusting knob 53 fixedly installed at the top of the adjusting screw 52.

[0035] Among them, the fixed nut 51 and the adjusting screw 52 are threadedly connected, and the adjusting knob 53 is located above the top plate 4. Rotating the adjusting knob 53 drives the adjusting screw 52 to rotate, driving the adjusting screw 52 to move up and down inside the fixed nut 51.

[0036] Secondly, sliding through holes 205 are opened at the four corners of the bottom of the upper mold 2, and the guide posts 3 are inserted into the interiors of the sliding through holes 205. When clamping the casting 6, the adjusting screw 52 is lifted by rotating the adjusting knob 53, driving the upper mold 2 to rise. The casting 6 is placed into the lower installation groove 101. Then, the adjusting screw 52 is lowered by rotating the adjusting knob 53, driving the upper mold 2 to descend. The upper installation groove 201 is sleeved on the top of the casting 6, and at the same time, the protrusion 61 enters the positioning groove 202 to clamp the casting 6. Then, the adjusting screw 52 is tightened to clamp the casting 6 between the lower mold 1 and the upper mold 2 to complete the clamping.

[0037] Finally, an installation base plate 7 is fixedly installed at the bottom of the lower mold 1, and installation through holes for fixing the installation base plate 7 on the installation surface are formed at the top of the installation base plate 7. The installation base plate 7 is installed on the installation surface by bolts passing through the installation through holes, and the entire processing tooling is fixed on the processing station.

[0038] The working principle of the above embodiment is as follows: The upper mold 2 is driven to rise by adjusting the knob 53, the casting 6 is placed into the lower installation groove 101, and then the upper mold 2 is driven to descend by adjusting the knob 53. The upper installation groove 201 is sleeved on the top of the casting 6, and at the same time, the protrusion 61 enters the positioning groove 202 to clamp the casting 6. Then, the adjusting screw 52 is tightened to clamp the casting 6 between the lower mold 1 and the upper mold 2. The hole machining of the protrusion 61 of the casting 6 is carried out through the first machining through hole 203, and then the hole machining of the other side of the casting 6 is carried out through the second machining through hole 204 to obtain two holes with the same datum.

Claims

1. A processing tooling for complex thin-walled castings, characterized in that It includes a lower die (1), guide posts (3) fixedly installed at the four corners of the top of the lower die (1), an upper die (2) slidably installed on the surface of the guide posts (3), a top plate (4) fixedly installed at the top ends of the guide posts (3), and a pressing assembly (5) arranged on the top plate (4) for driving the upper die (2) to move up and down. The pressing assembly (5) includes a fixed nut (51) fixedly installed at the bottom of the top plate (4), an adjusting screw (52) rotatably installed at the top of the upper die (2), and an adjusting knob (53) fixedly installed at the top end of the adjusting screw (52).

2. The processing tooling for a complex thin-walled casting according to claim 1, characterized in that: The fixed nut (51) is threadedly connected with the adjusting screw (52), and the adjusting knob (53) is located above the top plate (4).

3. The processing tooling for a complex thin-walled casting according to claim 1, characterized in that: A lower installation groove (101) is formed on one side of the lower die (1), and a casting (6) is placed in the lower installation groove (101).

4. The processing tooling for a complex thin-walled casting according to claim 3, characterized in that: An upper installation groove (201) symmetrical to the lower installation groove (101) is formed at the bottom of the upper die (2). A protrusion (61) is arranged at the top of the casting (6), and a positioning groove (202) adapted to the protrusion (61) is formed on the inner side wall of the upper die (2).

5. The processing tooling for a complex thin-walled casting according to claim 4, wherein: A first processing through hole (203) is formed on one side of the upper die (2), and a second processing through hole (204) is formed on the side of the upper die (2) adjacent to the first processing through hole (203). The axes of the first processing through hole (203) and the second processing through hole (204) are perpendicular.

6. The processing tooling for a complex thin-walled casting according to claim 1, wherein: Sliding through holes (205) are formed at the four corners of the bottom of the upper die (2), and the guide posts (3) are inserted into the interiors of the sliding through holes (205).

7. The processing tooling for a complex thin-walled casting according to claim 1, characterized in that: An installation bottom plate (7) is fixedly installed at the bottom of the lower die (1), and installation through holes for fixing the installation bottom plate (7) on the installation surface are formed on the top of the installation bottom plate (7).

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