Trimming die for lower cylinder body of engine

Abstract

The utility model discloses an engine lower cylinder body trimming die, which comprises a lower die, a lower die, an upper die, an upper die and a lower die, and is characterized in that the top surface of the lower die is provided with a slag leakage groove communicated to the bottom surface; the positioning assembly is fixedly arranged on the top surface of the lower mold and located on the periphery of the slag leakage groove; the upper mold is arranged above the lower mold; the pressing assembly is arranged above the upper die, and the bottom end of the pressing assembly penetrates through the upper die and extends to the position above the lower die; the edge cutting assembly is fixedly arranged on the bottom surface of the upper die; and the cutting assembly is arranged on the lower die and the upper die. The trimming die can complete cutting of pouring gate excess materials and cinder ladles at a time, cut edges are neat, and operation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular to a trimming die for a lower cylinder block of an engine. Background Art

[0002] like Figure 1 After die casting, the outer periphery of the top of the engine lower cylinder block shown in the figure has the upper runner residue, the outer periphery of the bottom has the lower runner residue, and the evenly distributed through grooves on it have slag bags. These die casting runner residues and slag bags need to be removed. For this purpose, a trimming die is designed to complete the removal of runner residues and slag bags at one time, with neat cutting edges and high operating efficiency. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an engine lower cylinder block trimming die that can complete the removal of runner residues and slag bags at one time, with neat cutting edges and high operating efficiency.

[0004] The utility model provides an engine lower cylinder block trimming die, comprising:

[0005] The lower mold has a slag leakage groove connected to the bottom surface on its top surface, and the contour of the top surface is the same as the contour of the bottom of the engine lower cylinder block;

[0006] A positioning assembly is fixedly arranged on the top surface of the lower mold and is located at the outer periphery of the slag leakage groove;

[0007] An upper mold, arranged above the lower mold;

[0008] A clamping assembly is arranged above the upper mold, and the bottom end of the clamping assembly passes through the upper mold and extends to the top of the lower mold;

[0009] A trimming assembly, fixedly arranged on the bottom surface of the upper mold, for cutting off the upper runner residue, the lower runner residue and the internal slag bag of the engine lower cylinder body;

[0010] A cutting assembly is arranged on the lower mold and the upper mold, and is used for cutting off the upper runner residue and the lower runner residue.

[0011] Furthermore, the lower mold is provided with downwardly sliding slopes sloping outward from top to bottom on all four sides.

[0012] Furthermore, the positioning assembly includes a plurality of positioning pins fixedly arranged on the top surface of the lower mold and located at the periphery of the slag leakage groove.

[0013] Furthermore, the clamping assembly includes a pressing plate arranged above the upper mold, and a plurality of pressing rods are fixedly arranged on the bottom surface of the pressing plate; avoidance holes corresponding to the pressing rods are opened on the upper mold, and the bottom ends of the pressing rods pass through the corresponding avoidance holes and extend to the top of the lower mold.

[0014] Furthermore, the trimming assembly includes a plurality of connecting columns fixedly arranged on the bottom surface of the upper mold, a slag bag punch is fixedly arranged at the bottom end of the connecting column, a plurality of upper punches are fixedly arranged on the periphery of the plurality of connecting columns, and a plurality of lower punches are fixedly arranged on the bottom surface of the upper mold on the periphery of the plurality of upper punches.

[0015] Furthermore, the cutting assembly includes a first lower cutter, a second lower cutter and an upper cutter; the first lower cutter is fixedly arranged on the lower mold below the corner of the upper runner residual material, the second lower cutter is fixedly arranged on the lower mold below the corner of the lower runner residual material, and the upper cutter is fixedly arranged on the bottom surface of the upper mold in a one-to-one correspondence with the first lower cutter.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a trimming die with a positioning component, a clamping component, a trimming component and a cutting component; after the engine lower cylinder is positioned and installed on the lower die through the positioning component, the clamping component clamps and fixes it. Then the trimming component cuts off the upper runner residue, the lower runner residue and the internal slag bag of the engine lower cylinder, and the cutting component cuts off the upper runner residue and the lower runner residue; the cut upper runner residue and the lower runner residue fall together with the slag bag inside the engine lower cylinder, and the cutting of the runner residue and the slag bag is completed at one time, the cutting edge is neat, and the operation efficiency is high.

[0018] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the engine lower cylinder block before trimming;

[0021] Figure 2 It is a schematic diagram of the structure of the engine lower cylinder block after trimming;

[0022] Figure 3It is a structural schematic diagram of the trimming die;

[0023] Figure 4 It is a structural schematic diagram of the lower mold and the clamping assembly;

[0024] Figure 5 It is a schematic diagram of the structure of the upper mold, the pressing assembly and the trimming assembly;

[0025] Figure 6 It is a schematic diagram of the structure of the engine lower cylinder body installed on the trimming mold.

[0026] Numbers in the figure: 1, lower mold; 2, positioning assembly; 3, upper mold; 4, clamping assembly; 5, trimming assembly; 6, cutting assembly; 7, engine lower cylinder block;

[0027] 11. Slag chute; 12. Downward slope;

[0028] 21. Positioning pin;

[0029] 31. Avoidance hole;

[0030] 41. Pressing plate; 42. Pressing rod;

[0031] 51. Connecting column; 52. Slag punch; 53. Upper punch; 54. Lower punch;

[0032] 61. first lower cutting knife; 62. second lower cutting knife; 63. upper cutting knife;

[0033] 71. Residual material of upper pouring channel; 72. Residual material of upper pouring channel; 73. Through slot; 74. Slag bag. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Please refer to Figure 1 to Figure 6 The embodiment of the utility model provides an engine lower cylinder block trimming die, comprising:

[0037] The lower mold 1 has a slag leakage groove 11 on its top surface connected to the bottom surface, and the contour of its top surface is the same as the contour of the bottom of the engine lower cylinder block 7;

[0038] The positioning assembly 2 is fixedly arranged on the top surface of the lower mold 1 and located at the outer periphery of the slag leakage groove 11;

[0039] The upper mold 3 is arranged above the lower mold 1;

[0040] The clamping assembly 4 is arranged above the upper mold 1, and the bottom end of the clamping assembly 4 passes through the upper mold 3 and extends to the top of the lower mold 1;

[0041] The trimming assembly 5 is fixedly arranged on the bottom surface of the upper mold 3 and is used to cut off the upper runner residue 71, the lower runner residue 72 and the internal slag bag 74 of the engine lower cylinder block 7;

[0042] The cutting assembly 6 is arranged on the lower mold 1 and the upper mold 3 and is used to cut off the upper runner residual material 71 and the lower runner residual material 72 .

[0043] In this embodiment, when trimming the engine lower cylinder 7, it is first placed on the top surface of the lower mold 1, and positioned by the positioning assembly 2, so that the edge of its bottom is aligned with the edge of the top surface of the lower mold 1; then the first top cylinder of the hydraulic device drives the clamping assembly 4 to move downward to clamp and fix the engine lower cylinder 7;

[0044] Then the second top cylinder of the hydraulic device drives the trimming assembly 5 to move downward, and removes the upper runner residue 71, lower runner residue 72 and the internal slag bag 74 of the engine lower cylinder 7, and at the same time, the cutting assembly 6 cuts off the upper runner residue 71 and lower runner residue 72. The cut upper runner residue 71 and lower runner residue 72 fall from the surrounding of the lower mold 1, and the slag bag 74 falls from the slag trough 11, and all fall into the collection box below the lower mold 1. The trimming mold completes the removal of the upper runner residue 71, lower runner residue 72 and slag bag 74 at one time, with neat cutting edges and high operating efficiency.

[0045] In a preferred embodiment, if Figure 3 and Figure 4 As shown, the lower mold 1 is provided with downwardly inclined surfaces 12 inclined from top to bottom and outwardly on all four sides. The cut upper runner residue 71 and lower runner residue 72 fall on the downwardly inclined surfaces 12 and slide down along the downwardly inclined surfaces 12, thereby reducing the falling speed of the cut upper runner residue 71 and lower runner residue 72, so that the cut materials slowly fall into the collection box for collection.

[0046] In a preferred embodiment, if Figure 4 As shown, the positioning assembly 2 includes a plurality of positioning pins 21 fixedly arranged on the top surface of the lower mold 1 and located at the periphery of the slag leakage groove 11. When the engine lower cylinder block 7 is placed on the top surface of the lower mold 1, each positioning pin 21 is respectively inserted into each type of hole on the bottom surface of the engine lower cylinder block 7, thereby realizing the precise positioning of the engine lower cylinder block 7.

[0047] In a preferred embodiment, if Figure 3 and Figure 4 As shown, the clamping assembly 4 includes a pressing plate 41 arranged above the upper mold 3, and a plurality of pressing rods 42 are fixedly arranged on the bottom surface of the pressing plate 41; avoidance holes 31 corresponding to the pressing rods 42 are opened on the upper mold 3, and the bottom ends of the pressing rods 42 pass through the corresponding avoidance holes 31 and extend to the top of the lower mold 1.

[0048] In this embodiment, the pressing plate 41 is fixedly connected to the first top cylinder of the hydraulic device. After the engine lower cylinder 7 is placed on the top surface of the upper mold 3, the first top cylinder drives the pressing plate 41 to move downward, and the bottom end of the pressing rod 42 passes through the corresponding avoidance hole 31 and presses on the engine lower cylinder 7 to tighten and fix it, which is convenient to operate and firmly fixed.

[0049] In a preferred embodiment, if Figure 3 and Figure 5 As shown, the trimming assembly 5 includes a plurality of connecting columns 51 fixedly arranged on the bottom surface of the upper mold 1, a slag bag punch 52 is fixedly arranged at the bottom end of the connecting column 51, a plurality of upper punches 53 are fixedly arranged on the periphery of the plurality of connecting columns 51 on the bottom surface of the upper mold 3, and a plurality of lower punches 54 are fixedly arranged on the periphery of the plurality of upper punches 53 on the bottom surface of the upper mold 3.

[0050] In this embodiment, during the falling process of the upper die 3 , the slag bag punches 52 extend into the through grooves 73 of the engine lower cylinder block 7 one by one, and punch out the slag bags 74 , and the slag bags 74 fall down through the slag leakage groove 11 .

[0051] At the same time, each upper punch 53 is respectively against the upper runner residual material 71, and the upper runner residual material 71 is cut off as the upper punch 53 moves downward. The connection part between the upper runner residual material 71 and the engine lower cylinder block 7 is relatively thin and can be directly and neatly cut off.

[0052] At the same time, each lower punch 54 is respectively against the lower runner residual material 72, and the lower runner residual material 72 is punched off as the lower punch 54 moves downward. The connection portion between the lower runner residual material 72 and the engine lower cylinder block 7 is relatively thick, and the top surface of the upper mold 3 forms a support for the bottom edge of the engine lower cylinder block 7, ensuring that the connection portion between the lower runner residual material 72 and the engine lower cylinder block 7 is neatly punched off.

[0053] The trimming assembly 5 realizes the one-time cutting of the upper runner residual material 71, the lower runner residual material 72 and the slag bag 74, with neat cutting edges and high operation efficiency.

[0054] In a preferred embodiment, if Figure 3 to Figure 5As shown, the cutting assembly 6 includes a first lower cutter 61, a second lower cutter 62 and an upper cutter 63; the first lower cutter 61 is fixedly arranged on the lower mold 1 below the corner of the upper runner residual material 71, the second lower cutter 62 is fixedly arranged on the lower mold 1 below the corner of the lower runner residual material 72, and the upper cutter 63 is fixedly arranged on the bottom surface of the upper mold 3 in a one-to-one correspondence with the first lower cutter 61.

[0055] In this embodiment, the thickness of the upper runner residue 71 is relatively thick, and the first lower cutter 61 and the upper cutter 63 cooperate to cut off the corner thereof; the thickness of the lower runner residue 72 is relatively thin, and as the trimming assembly 5 is pressed downward, the second lower cutter 62 can cut off the corner of the lower runner residue 72. The length of the upper runner residue 71 and the lower runner residue 72 after cutting is relatively short, which is convenient for collection and subsequent reuse.

[0056] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An engine lower cylinder trimming die, characterized in that: include: The lower mold (1) has a slag leakage groove (11) on its top surface connected to the bottom surface, and the contour of the top surface is the same as the contour of the bottom of the engine lower cylinder block (7); A positioning assembly (2) is fixedly arranged on the top surface of the lower mold (1) and is located at the outer periphery of the slag leakage groove (11); An upper mold (3) is arranged above the lower mold (1); A clamping assembly (4) is arranged above the upper mold (3), and the bottom end of the clamping assembly (4) passes through the upper mold (3) and extends to the top of the lower mold (1); A trimming assembly (5) is fixedly arranged on the bottom surface of the upper mold (3) and is used to trim the upper runner residue (71), the lower runner residue (72) and the internal slag bag (74) of the engine lower cylinder block (7); A cutting assembly (6) is arranged on the lower mold (1) and the upper mold (3) and is used to cut off the upper runner residue (71) and the lower runner residue (72).

2. The engine lower cylinder block trimming die according to claim 1, characterized in that: The lower mold (1) is provided with downwardly sliding slopes (12) on all sides thereof, which are inclined from top to bottom and outward.

3. The engine lower cylinder block trimming die according to claim 1, characterized in that: The positioning assembly (2) comprises a plurality of positioning pins (21) fixedly arranged on the top surface of the lower mold (1) and located at the periphery of the slag leakage groove (11).

4. The engine lower cylinder block trimming die according to claim 1, characterized in that: The clamping assembly (4) comprises a pressing plate (41) arranged above the upper mold (3), and a plurality of pressing rods (42) are fixedly arranged on the bottom surface of the pressing plate (41); avoidance holes (31) corresponding to the pressing rods (42) are opened on the upper mold (3), and the bottom ends of the pressing rods (42) pass through the corresponding avoidance holes (31) and extend to the top of the lower mold (1).

5. The engine lower cylinder block trimming die according to claim 1, characterized in that: The trimming assembly (5) comprises a plurality of connecting columns (51) fixedly arranged on the bottom surface of the upper mold (3), a slag ladle punch (52) being fixedly arranged at the bottom end of the connecting column (51), a plurality of upper punches (53) being fixedly arranged on the bottom surface of the upper mold (3) at the periphery of the plurality of connecting columns (51), and a plurality of lower punches (54) being fixedly arranged on the bottom surface of the upper mold (3) at the periphery of the plurality of upper punches (53).

6. The engine lower cylinder block trimming die according to claim 1, characterized in that: The cutting assembly (6) comprises a first lower cutting knife (61), a second lower cutting knife (62) and an upper cutting knife (63); the first lower cutting knife (61) is fixedly arranged on the lower mold (1) below the corner of the upper runner residual material (71); the second lower cutting knife (62) is fixedly arranged on the lower mold (1) below the corner of the lower runner residual material (72); and the upper cutting knife (63) is fixedly arranged on the bottom surface of the upper mold (3) in a one-to-one correspondence with the first lower cutting knife (61).

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