Refrigerator compressor shell trimming die

Abstract

The utility model discloses a refrigerator compressor shell trimming die which comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die base, an upper padding plate and a female die insert which are sequentially arranged from top to bottom, a vertically-through sliding groove is formed in the center of the upper padding plate and the center of the female die insert, and an upper female die is slidably connected into the sliding groove; the bottom surface of the upper female die is matched with the top surface of the shell in shape; an annular upper cutting blade is arranged on the female die insert along the bottom of the sliding groove; an elastic piece is arranged between the upper base plate and the upper female die; the lower die assembly comprises a lower die base, a lower base plate and a lower male die which are sequentially arranged from bottom to top. A forming base matched with a shell in shape is fixedly arranged on the lower male die. The diameter of the lower male die is matched with the inner diameter of the sliding groove, and a lower cutting blade is arranged on the outer edge of the lower male die. A plurality of tool aprons are arranged on the periphery of the lower male die at intervals, and waste cut-off tools are detachably connected to the tool aprons. According to the utility model, the production efficiency and the machining precision of the shell can be effectively improved, and burrs cannot be generated.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator compressor housing manufacturing technology. More specifically, this utility model relates to a refrigerator compressor housing trimming mold. Background Technology

[0002] After the refrigerator compressor upper housing is stretched, the waste material at the edges needs to be removed. This is typically done using a rotary cutting die, but rotary cutting easily produces burrs, requiring further manual removal. Therefore, a trimming process is used to avoid burrs. Specifically, the sheet metal is first stretched halfway, leaving a flat surface for the edge waste. After trimming, it is stamped again to straighten the edges. However, conventional mechanical cutting methods are inefficient and lack precision. Furthermore, for refrigerator compressor housings, using conventional stamping and trimming dies results in ring-shaped waste material, which is difficult to remove and requires manual handling. To improve production efficiency and processing accuracy, there is an urgent need for a dedicated trimming die for automated trimming, which, in conjunction with stamping dies and a feeding device, forms a housing production line to completely solve the burr problem. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] To achieve these objectives and other advantages according to this utility model, a refrigerator compressor housing trimming mold is provided, comprising an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base, an upper pad, and a concave mold insert arranged sequentially from top to bottom. A vertically penetrating sliding groove is formed at the center of the upper pad and the concave mold insert. An upper concave mold is slidably connected within the sliding groove, and the bottom surface of the upper concave mold matches the shape of the top surface of the housing. An annular upper cutting edge is provided on the concave mold insert along the bottom of the sliding groove. A vertically penetrating edge is provided on the upper pad. The device includes a sliding sleeve with a connecting member slidably connected inside. The bottom of the connecting member is fixedly connected to the upper die. An elastic element is provided between the upper pad and the upper die. The lower die assembly includes a lower die base, a lower pad, and a lower punch arranged sequentially from bottom to top. A forming seat that matches the shape of the housing is fixedly provided on the lower punch. The diameter of the lower punch matches the inner diameter of the sliding groove. A lower cutting edge is provided on the outer edge of the lower punch. Multiple cutter holders are spaced apart on the outer periphery of the lower punch. A waste cutting knife is detachably connected to each cutter holder.

[0005] Preferably, the bottom surface of the upper pad and the top surface of the upper die are respectively provided with grooves, and the two ends of the elastic element are respectively connected to the two grooves.

[0006] Preferably, the bottom of the sliding sleeve extends into the groove corresponding to the top surface of the upper die.

[0007] Preferably, a reinforcing rib is provided between two adjacent tool holders. The reinforcing rib is triangular, and its two perpendicular sides are fixedly connected to the lower pad and the lower punch, respectively.

[0008] Preferably, the top surface of the reinforcing rib is not higher than the top surface of the waste cutting blade.

[0009] Preferably, the top surface of the waste cutting blade is provided with a cutting edge, and the two sides of the cutting edge are downward inclined surfaces symmetrically arranged about the cutting edge.

[0010] Preferably, the top surface of the tool holder is provided with a groove for accommodating the waste cutting tool, and a baffle is provided on the side of the tool holder away from the lower punch. The baffle is provided with a threaded hole horizontally corresponding to the waste cutting tool, and a bolt is threaded into the threaded hole. One end of the bolt abuts against the waste cutting tool.

[0011] This utility model has at least the following beneficial effects:

[0012] The refrigerator compressor housing trimming die provided by this utility model has the following characteristics: As the upper die assembly descends, the annular upper cutting blade on the concave die insert and the lower cutting blade on the lower punch work together to cut off the excess edge material around the housing, resulting in annular waste material. Then, as the upper die assembly continues to descend, the annular upper cutting blade and various waste cutting blades cut off the annular waste material and discharge it, preventing waste material from accumulating at the lower die assembly and affecting subsequent trimming operations. The trimmed housing can be directly sent into the stamping die for a final stretching, effectively improving the production efficiency and processing accuracy of the housing, and preventing the generation of burrs.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the refrigerator compressor housing cutting mold shown in this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of section A in the image;

[0016] Figure 3 This is a top view of the tool holder described in this utility model; Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0018] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0019] like Figures 1 to 3 As shown, this utility model provides a refrigerator compressor housing trimming mold, including an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base 1, an upper pad 2, and a concave mold insert 16 arranged sequentially from top to bottom. The concave mold insert 16 has a vertically penetrating sliding groove at its center, and an upper concave mold 3 is slidably connected within the sliding groove. The bottom surface of the upper concave mold 3 matches the shape of the top surface of the housing 15. An annular upper cutting edge is provided on the concave mold insert 16 along the bottom of the sliding groove. A sliding sleeve 4 is vertically inserted through the upper pad 2, and a connecting piece 5 is slidably connected within the sliding sleeve 4. The bottom of the connector 5 is fixedly connected to the upper die 3, and an elastic element 6 is provided between the upper pad 2 and the upper die 3; the lower die assembly includes a lower die base 12, a lower pad 11, and a lower punch 13 arranged sequentially from bottom to top, and a forming seat 14 that matches the shape of the housing 15 is fixedly provided on the lower punch 13; the diameter of the lower punch 13 matches the inner diameter of the sliding groove, and a lower cutting edge is provided on the outer edge of the lower punch 13; a plurality of cutter holders 9 are spaced apart on the outer periphery of the lower punch 13, and a waste cutting blade 91 is detachably connected to the cutter holder 9.

[0020] In this technical solution, the upper die assembly is connected to the punch press, and the lower die assembly is fixed on the punch press worktable. Before trimming, the shell 15 to be trimmed is first placed on the forming seat 14. When the die is closed, the punch press drives the upper die assembly downward. After the upper die 3 abuts against the shell 15, as the upper die assembly continues to descend, under the action of the elastic member 6, the upper die 3 presses against the shell 15. Then, the annular upper cutting edge on the die insert 16 and the lower cutting edge on the lower punch work together to cut off the excess edge material around the shell 15 to obtain annular scrap. Then, as the upper die assembly continues to descend, the annular upper cutting edge and the scrap cutting blade 91 cut off the annular scrap and discharge it, avoiding the accumulation of scrap at the lower die assembly, which would affect subsequent trimming operations. During mold opening, the punch press drives the upper mold assembly upward. Under the action of the elastic element 6, the upper die 3 separates from the housing 15, and the housing 15 remains on the forming seat 14, waiting to be removed. After the upper mold assembly reaches the top dead center, it completes one housing trimming step. Considering that in the prior art, the scrap cutter is usually directly fixed at the part to be cut, and it is difficult to replace the cutter after it wears out, the tool holder 9 is provided to solve this problem. The scrap cutter 91 is installed through the tool holder 9 to facilitate replacement. Preferably, the lower mold seat 12 is also provided with a guide post 7, and the upper mold insert 16 is correspondingly provided with a guide sleeve. When the upper mold assembly moves downward, the guide post 7 will first insert into the corresponding guide sleeve to assist the mold in positioning.

[0021] In another technical solution, the bottom surface of the upper pad 2 and the top surface of the upper die 3 are respectively provided with grooves, and both ends of the elastic member 6 are connected to the two grooves respectively. The two grooves provide accommodating space for the elastic member 6, ensuring the stability of the elastic member 6.

[0022] Furthermore, the bottom of the sliding sleeve 4 extends into the corresponding groove on the top surface of the upper die 3. The connecting member 5 can be a screw that meets the length requirements, and is fixed in the upper die 3 with a bottom threaded connection, while the remaining part slides vertically along the sliding sleeve 4 under the action of the upper die 3.

[0023] In another technical solution, a reinforcing rib 8 is provided between two adjacent tool holders 9. The reinforcing rib 8 is triangular, and its two perpendicular sides are fixedly connected to the lower pad 11 and the lower punch 13, respectively. The reinforcing rib 8 can be fixed to the lower pad 11 by a base plate, such as... Figure 1As shown, its inclined surface faces outwards, which improves the impact resistance of the lower mold assembly. At the same time, the waste material segment cut between the two waste cutting blades 91 can slide out from the inclined surface, further preventing waste from accumulating on the lower pad 11. The outer side of the lower mold base 12 is also provided with a downwardly inclined guide plate 10 and a waste bin located below the guide plate 10, thereby realizing the collection of waste.

[0024] Furthermore, the top surface of the reinforcing rib 8 is not higher than the top surface of the waste cutting blade 91, so as to avoid the reinforcing rib 8 interfering with the waste cutting.

[0025] In another technical solution, the top surface of the waste cutting blade 91 is provided with a cutting edge, and the two sides of the cutting edge are downward inclined surfaces symmetrically arranged about the cutting edge. The cutting edge is used to ensure that the waste material can be cut quickly, and the cut waste segment slides down the inclined surface and quickly disengages from the lower punch 13.

[0026] In another technical solution, such as Figure 2 and Figure 3 As shown, the top surface of the blade holder 9 has a groove for accommodating the waste cutting blade 91. A baffle 93 is provided on the side of the blade holder 9 away from the lower punch 13. The baffle 93 has a threaded hole horizontally corresponding to the waste cutting blade 91, and a bolt 92 is threaded into the threaded hole. One end of the bolt 92 abuts against the waste cutting blade 91. The waste cutting blade 91 is fixed to the blade holder 9 by the bolt 92. The blade holder 9 provides support for the waste cutting blade 91, and the groove and the bolt 92 provide horizontal limiting for the waste cutting blade 91. When the waste cutting blade 91 needs to be replaced, simply rotate the bolt 92 to move it away from the waste cutting blade 91; the operation is convenient. The blade holder 9 is fixed to the lower pad 11 by screws.

[0027] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A trimming die for a refrigerator compressor housing, characterized by, The application relates to a die assembly, which comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises an upper die seat, an upper cushion plate and a concave die insert block arranged in sequence from top to bottom, a sliding groove penetrating from top to bottom is arranged in the center of the upper cushion plate and the concave die insert block, an upper concave die is slidably connected in the sliding groove, the bottom surface of the upper concave die is matched with the top surface of a shell; an annular upper cutter blade is arranged on the bottom of the sliding groove of the concave die insert block; a sliding sleeve is vertically arranged on the upper cushion plate, a connecting piece is slidably connected in the sliding sleeve, the bottom of the connecting piece is fixedly connected with the upper concave die, and an elastic piece is arranged between the upper cushion plate and the upper concave die; the lower die assembly comprises a lower die seat, a lower cushion plate and a lower convex die arranged in sequence from bottom to top, a forming seat matched with the shape of the shell is fixedly arranged on the lower convex die; the diameter of the lower convex die is matched with the inner diameter of the sliding groove, a lower cutter blade is arranged on the outer edge of the lower convex die; a plurality of cutter seats are arranged at intervals on the outer periphery of the lower convex die, and a waste cutting knife is detachably connected on the cutter seat.

2. The refrigerator compressor housing trim die of claim 1, wherein, The bottom surface of the upper cushion plate and the top surface of the upper concave die are correspondingly provided with grooves, and the two ends of the elastic piece are connected with the two grooves respectively.

3. The refrigerator compressor housing trim die of claim 2, wherein, The bottom of the sliding sleeve extends into the corresponding groove in the top surface of the upper concave die.

4. The refrigerator compressor housing trim die of claim 1, wherein, A reinforcing rib is arranged between the adjacent two cutter seats, the reinforcing rib is triangular, and the two mutually perpendicular sides of the reinforcing rib are fixedly connected with the lower cushion plate and the lower convex die respectively.

5. The refrigerator compressor housing trim die of claim 4, wherein, The top surface of the reinforcing rib is not higher than the top surface of the waste cutting knife.

6. The refrigerator compressor housing trim die of claim 1, wherein, The top surface of the waste cutting knife is provided with a cutter blade, and the two sides of the cutter blade are downward inclined surfaces arranged symmetrically about the cutter blade.

7. The refrigerator compressor housing trim die of claim 6, wherein, The top surface of the cutter seat is provided with a cutter groove for accommodating the waste cutting knife, the side of the cutter seat away from the lower convex die is provided with a baffle, the baffle is horizontally provided with a threaded hole corresponding to the waste cutting knife, a bolt is screwedly connected in the threaded hole, and one end of the bolt abuts against the waste cutting knife.

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