Trimming device for universal joint pin of differential mechanism

Abstract

The utility model discloses a differential spider trimming device, and belongs to the technical field of the automobile industry. The differential spider trimming device further comprises a filter, a liquid tank and a water suction pump which are fixedly arranged on one side of the lower mold plate. Four clamping grooves and a storage groove II are fixedly formed in the upper end of the lower mold plate; the filter is indirectly communicated with a second storage groove in the upper end face of the lower mold plate. The output end of the filter is fixedly connected with the input end of the liquid tank; the output end of the liquid tank is fixedly connected with the input end of a water suction pump; the output end of the water suction pump communicates with the second storage groove. Each clamping groove is a semicircular truncated cone-shaped hole; a clamping groove and a second storage groove are formed, cutting burrs are punched into the clamping groove and the second storage groove through hydraulic oil and then accumulated on the inner side of the second storage groove, burr residues on a cross shaft are cleaned, meanwhile, a cutting blade is cooled, and deformation caused by overheating of the cutting blade is prevented; and cooling fins are arranged, so that cooling and heat dissipation are carried out on the cutting position of the cross shaft.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile industry, and more specifically relates to a differential cross shaft trimming device. Background Art

[0002] The structure of the differential cross shaft is a circular ring in the middle, and four thin journals are evenly distributed outside the circular ring. The forging process of the differential cross shaft is: cutting - medium frequency induction heating - upsetting (removing oxide scale) - extrusion - final forging - trimming - punching - correction. The trimming and punching tools have the following problems: (1) When the trimming die is not concentric, the burrs of the four journals of the differential forging are asymmetric, with burrs on one side and overcut on the other side. The forging needs to grind 50% of the burrs. When the punching die is not concentric, the inner hole diameter does not meet the requirements of the drawing, and the scrap rate of the forging is high.

[0003] For example, a cross-axis trimming and punching mold with patent application number CN202222876986.1 comprises a base plate, a turntable is rotatably installed on one side of the base plate, a bottom mold is fixedly installed on the side of the turntable away from the base plate, a damper is fixedly installed on the side of the base plate close to the turntable, a top plate is fixedly installed on the side of the damper away from the base plate, a sliding rod is fixedly installed on the side of the top plate away from the damper, a mounting rod is fixedly installed on the side of the base plate close to the sliding rod, a driving gear is arranged on one side of the mounting rod, the driving gear is meshed with a crown gear, a one-way rotating shaft is fixedly installed on the side of the crown gear away from the driving gear, a driven gear is fixedly installed on the side of the one-way rotating shaft away from the driving gear, a disc tooth is meshed on one side of the driven gear, the driven gear drives the disc tooth to rotate, and the turntable starts to rotate, thereby making the operation of the mold more convenient, thereby providing high mold working efficiency.

[0004] Although the above-mentioned cross-axis trimming and punching die is suitable, the cutter head becomes hot after cutting, causing the cutter head to deform. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a differential cross-shaft trimming device to prevent the cutting blade from being overheated and deformed.

[0006] The utility model discloses a differential cross-axis trimming device, comprising a bracket; a lower model plate is fixedly arranged on one side of the bracket; an electric cylinder is fixedly arranged on the upper end of the bracket; the output end of the electric cylinder is fixedly connected to the upper model plate; the utility model also comprises a filter, a liquid tank, and a water pump fixedly arranged on one side of the lower model plate; four card slots and a second storage slot are fixedly arranged on the upper end of the lower model plate; the filter is indirectly connected with the second storage slot on the upper end surface of the lower model plate; the output end of the filter is fixedly connected with the input end of the liquid tank; the output end of the liquid tank is fixedly connected with the input end of the water pump; the output end of the water pump is connected with the second storage slot; each of the card slots is a semi-conical hole.

[0007] Preferably: the lower model plate includes a second shell plate, threaded holes, heat dissipation fins, a drop groove, and a slag discharge hole; the number of the threaded holes is two pairs; the two pairs of threaded holes are distributed around the second shell plate; the two pairs of slots are opened on the outside of the second storage slot; the lower end of the second storage slot is fixedly connected to the drop groove; the slag discharge hole is connected to the drop groove; two rows of heat dissipation fins are fixedly arranged on the outside of the second shell plate; the slag discharge hole is connected to the filter.

[0008] Preferably: the upper model plate includes a shell plate, an avoidance groove, a storage groove, and a cutting blade; two pairs of the avoidance grooves are located at the edge of the shell plate; the storage groove one is located at the center of the shell plate one; the cutting blade is arranged on the outside of the storage groove one; the two pairs of the avoidance grooves correspond to the two pairs of threaded holes.

[0009] Preferably, a multi-layer filter screen is arranged inside the filter, and a cooler is arranged inside the liquid tank.

[0010] Preferably, the two rows of heat dissipation fins are both copper-iron alloy metal sheets.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) By setting a card slot and a second storage slot, the cutting burrs are flushed into the card slot and the second storage slot by hydraulic oil, and then accumulated on the inner side of the second storage slot. While cleaning the burrs on the cross shaft, the cutting blade is cooled to prevent the cutting blade from overheating and deformation; by setting a heat dissipation fin, the cutting part of the cross shaft is cooled and dissipated;

[0013] (2) By setting the avoidance groove, the upper model plate and the lower model plate can be fully buckled, thereby improving the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a connection structure of a lower model plate of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the lower model plate of the utility model;

[0017] Figure 4 It is a schematic diagram of the upper model plate connection structure of the utility model.

[0018] Explanation of the numbers in the figure: 10, bracket; 11, filter; 12, electric cylinder; 13, upper model plate; 14, liquid tank; 15, water pump; 16, lower model plate; 1301, shell plate one; 1302, avoidance groove; 1303, storage groove one; 1304, cutting blade; 1601, shell plate two; 1602, threaded hole; 1603, cooling fin; 1604, drop groove; 1605, card slot; 1606, slag discharge hole; 1607, storage groove two. DETAILED DESCRIPTION

[0019] Specific embodiment 1: Please refer to Figure 1-4 A differential cross-axis trimming device comprises a bracket 10; a lower model plate 16 is fixedly arranged on one side of the bracket 10; an electric cylinder 12 is fixedly arranged on the upper end of the bracket 10; the output end of the electric cylinder 12 is fixedly connected to the upper model plate 13; it also includes a filter 11, a liquid tank 14, and a water pump 15 fixedly arranged on one side of the lower model plate 16; four card slots 1605 and a second storage slot 1607 are fixedly arranged on the upper end of the lower model plate 16; the filter 11 is indirectly connected to the second storage slot 1607 on the upper end surface of the lower model plate 16; the output end of the filter 11 is fixedly connected to the input end of the liquid tank 14; the output end of the liquid tank 14 is fixedly connected to the input end of the water pump 15; the output end of the water pump 15 is connected to the second storage slot 1607; each of the card slots 1605 is a semi-conical hole.

[0020] See also Figure 2-3 The lower model plate 16 includes a second shell plate 1601, a threaded hole 1602, a heat dissipation fin 1603, a drop groove 1604, and a slag discharge hole 1606; the threaded holes 1602 are in two pairs; the two pairs of threaded holes 1602 are distributed around the second shell plate 1601; the two pairs of slots 1605 are opened outside the second storage slot 1607; the lower end of the second storage slot 1607 is fixedly connected to the drop groove 1604; the slag discharge hole 1606 is connected to the drop groove 1604; the second shell plate 1601 outside Two rows of cooling fins 1603 are fixedly arranged on the side; the slag discharge hole 1606 is communicated with the filter 11; by arranging the card slot 1605 and the second storage slot 1607, the cutting burrs are flushed into the card slot 1605 and the second storage slot 1607 by using hydraulic oil, and then accumulated on the inner side of the second storage slot 1607, while cleaning the burr residue on the cross shaft, the cutting blade 1304 is cooled to prevent the cutting blade 1304 from overheating and deformation; by arranging the cooling fins 1603, the cutting part of the cross shaft is cooled and dissipated.

[0021] See also Figure 4The upper model plate 13 includes a shell plate 1301, an avoidance groove 1302, a storage groove 1303, and a cutting blade 1304; the two pairs of the avoidance grooves 1302 are located at the edge of the shell plate 1301; the storage groove 1303 is located at the center of the shell plate 1301; the cutting blade 1304 is arranged on the outside of the storage groove 1303; the two pairs of the avoidance grooves 1302 correspond to the two pairs of threaded holes 1602.

[0022] See also Figure 1 A multi-layer filter screen is arranged inside the filter 11, and a cooler is arranged inside the liquid tank 14.

[0023] See also Figure 2-3 The two rows of heat dissipation fins 1603 are both copper-iron alloy metal sheets; by providing the avoidance groove 1302, the upper model plate 13 and the lower model plate 16 can be completely buckled, thereby improving the cutting accuracy.

[0024] During operation, the cross shaft is placed inside the second storage slot 1607, the rod of the cross shaft is clamped in the clamping slot 1605, the electric cylinder 12 is started, the output end of the electric cylinder 12 is fixedly connected to the upper model plate 13, and the cutting blade 1304 of the upper model plate 13 cuts off the burrs of the cross shaft; the water pump 15 is started, and the water pump 15 draws a sufficient amount of oil from the liquid tank 14 to flush the burrs and debris in the second storage slot 1607; after the cutting blade 1304 cuts off the burrs of the cross shaft in the second storage slot 1607, the water pump 15 delivers low-temperature hydraulic oil to the second storage slot 1607 to flush the cross shaft, and then the cut burrs are The debris is in the second storage groove 1607, and then the burr debris flows out from the drop groove 1604, and enters the inner side of the filter 11 from the slag discharge hole 1606. The burr debris is filtered out by the inner side of the filter 11, and the oil flows back to the inner side of the liquid tank 14; because the heat generated by the cutting blade 1304 cutting the burr is partly dissipated by the cooling fins 1603, and partly dissipated by the hydraulic oil with a lower temperature, the residual heat from the cutting burr is used to heat the oil flowing into the second storage groove 1607 to prevent it from being stagnant in the second storage groove 1607 due to its temperature being too low; after the cutting is completed, the electric cylinder 12 is started to lift the upper model plate 13, and then the cross shaft can be taken out.

[0025] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0026] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements.

[0027] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A differential cross-axle trimming device, comprising a bracket (10); a lower model plate (16) is fixedly arranged on one side of the bracket (10); an electric cylinder (12) is fixedly arranged on the upper end of the bracket (10); an output end of the electric cylinder (12) is fixedly connected to an upper model plate (13); characterized in that: It also comprises a filter (11), a liquid tank (14), and a water pump (15) fixedly arranged on one side of a lower model plate (16); four slots (1605) and a second storage slot (1607) are fixedly arranged on the upper end of the lower model plate (16); the filter (11) is indirectly connected to the second storage slot (1607) on the upper end surface of the lower model plate (16); the output end of the filter (11) is fixedly connected to the input end of the liquid tank (14); the output end of the liquid tank (14) is fixedly connected to the input end of the water pump (15); the output end of the water pump (15) is connected to the second storage slot (1607); each of the slots (1605) is a semi-conical hole.

2. A differential cross-shaft trimming device according to claim 1, characterized in that: The lower model plate (16) comprises a second shell plate (1601), threaded holes (1602), heat dissipation fins (1603), a drop groove (1604), and a slag discharge hole (1606); the number of the threaded holes (1602) is two pairs; the two pairs of threaded holes (1602) are distributed around the second shell plate (1601); the two pairs of slots (1605) are arranged on the outside of the second storage groove (1607); the lower end of the second storage groove (1607) is fixedly connected to the drop groove (1604); the slag discharge hole (1606) is connected to the drop groove (1604); two rows of heat dissipation fins (1603) are fixedly arranged on the outside of the second shell plate (1601); and the slag discharge hole (1606) is connected to the filter (11).

3. The differential cross-shaft trimming device according to claim 1, characterized in that: The upper model plate (13) comprises a shell plate 1 (1301), an avoidance groove (1302), a storage groove 1 (1303), and a cutting blade (1304); two pairs of the avoidance grooves (1302) are located at the edge of the shell plate 1 (1301); the storage groove 1 (1303) is located at the center of the shell plate 1 (1301); the cutting blade (1304) is arranged outside the storage groove 1 (1303); and the two pairs of the avoidance grooves (1302) correspond to the two pairs of threaded holes (1602).

4. The differential cross-shaft trimming device according to claim 1, characterized in that: A multi-layer filter screen is arranged inside the filter (11), and a cooler is arranged inside the liquid tank (14).

5. The differential cross-shaft trimming device according to claim 2, characterized in that: The two rows of heat dissipation fins (1603) are both copper-iron alloy metal sheets.

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