Combined tooling device for bar forging and rounding

Abstract

The utility model discloses a combination frock device for bar forging and round breaking, including upper falling box, lower falling box, upper falling core and lower falling core, is established respectively on the upper falling box bottom and lower falling box top V type bucket groove, upper falling core installs in the V type bucket groove of upper falling box bottom, and lower falling core installs in the V type bucket groove of lower falling box top, and the cavity required for bar forging and round breaking is constituted between upper falling core and lower falling core, and upper falling core and upper falling box pin key connection, and lower falling core and lower falling box pin key connection. When needing to maintain the combination frock device for bar forging and round breaking of the utility model, only need to plane and mill the thickness of upper falling core and lower falling core, make the cavity size between upper falling core and lower falling core same with the original cavity, can maintain for many times, reuse, solved the problem that the frock device for round breaking of existing is integral structure, and the problem of poor durability.

Description

Technical Field

[0001] This utility model belongs to the technical field of bar forging equipment, and relates to a combined tooling device for forging and rounding bars. Background Technology

[0002] After titanium ingots are upsetting and drawing by free forging hammers, they need to be forged into round or square ingots of various specifications according to product requirements. The precision of round bars cannot meet the requirements of subsequent processes by forging with a forging hammer alone. A tooling device for rounding is needed to finish the bars after rough forging.

[0003] Existing rounding fixtures are typically integral units, mounted on the clamping arm of a manipulator. Under the clamping pressure of the manipulator, the material is held and rotated, cooperating with a forging press for forging. This process causes the material to undergo plastic deformation under high temperature to obtain the desired shape or size. The material is held by the fixture on the manipulator, which rotates while holding the material. The forward movement of the manipulator continuously feeds the material into the V-shaped anvil cavity, thus refining it into round bars with higher dimensional accuracy. However, due to the long-term repeated friction and compression between the working parts of the rounding fixture and the high-temperature material, the working parts of the fixture wear and deform under pressure, causing changes in the dimensions of the cavity, making it impossible to produce bars of the original specifications. Furthermore, cavity deformation can cause misalignment between the clamped material and the rotating manipulator, leading to bar bending and rendering the bar unusable. Therefore, repairs are necessary to maintain the original cavity dimensions. There are two main repair methods at this point. One is the upper plane reduction method, which involves reducing the thickness of the upper core from the upper surface to correspond to the cavity deformation depth, thereby restoring the original working cavity. After multiple repairs, the overall thickness of the tooling will continuously decrease until it is scrapped. The other is the filling method, which involves removing the fatigue and wear layers from the cavity area, welding it with relevant welding rods, and then machining it back to the original cavity dimensions. After the cavity is repaired, it undergoes heat treatment, which can maintain the original height of the anvil. Both methods have their advantages and disadvantages. The thickness reduction method is relatively durable, but it wastes a lot of metal material because it continuously consumes the tooling thickness until it is scrapped. While the filling method does not consume the material of the tooling itself, the tooling repaired by this method is not durable due to factors such as welding process and materials. Utility Model Content

[0004] The purpose of this invention is to provide a combined tooling device for forging and rounding bar stock, which solves the problem that existing rounding tooling devices are integral structures with poor durability.

[0005] The technical solution adopted by this utility model is a combined tooling device for forging and rounding bar stock, including an upper forging box, a lower forging box, an upper forging core, and a lower forging core. V-shaped grooves are respectively opened on the bottom surface of the upper forging box and the top surface of the lower forging box. The upper forging core is installed in the V-shaped groove on the bottom surface of the upper forging box, and the lower forging core is installed in the V-shaped groove on the top surface of the lower forging box. The upper forging core and the lower forging core form the cavity required for forging and rounding bar stock. The upper forging core is connected to the upper forging box by a key, and the lower forging core is connected to the lower forging box by a key.

[0006] The cavity is a diamond-shaped finishing hole, and the upper and lower diagonals of the diamond-shaped finishing hole are arc-shaped.

[0007] The upper impact core and the upper impact box are fixedly connected by a cylindrical pin key, which is fixed by a washer and a retaining spring.

[0008] The lower drop core and the lower drop box are fixedly connected by a cylindrical pin key. The cylindrical pin key has circlip grooves machined on both sides, and a circlip is installed in the circlip groove. A gasket is installed between the circlip groove and the lower drop box.

[0009] The outer dimensions of the upper impact core match the dimensions of the V-shaped groove on the bottom surface of the upper impact box, and the outer dimensions of the lower impact core match the dimensions of the V-shaped groove on the top surface of the lower impact box.

[0010] The bottom surface of the upper impact core is lower than the bottom surface of the upper impact box, and the top surface of the lower impact core is higher than the top surface of the lower impact box.

[0011] Mounting holes are provided on both sides of the upper and lower drop boxes.

[0012] The upper and lower impact cores have lifting holes on their sides.

[0013] The upper and lower impact cores have the same dimensions and structure.

[0014] The beneficial effects of this utility model are as follows: (1) A combined tooling device for bar forging rounding is assembled from the upper forging box, the lower forging box, the upper forging core, and the lower forging core. The upper forging core and the lower forging core form the cavity required for bar forging rounding. The upper forging core is connected to the upper forging box by pins and keys, and the lower forging core is connected to the lower forging box by pins and keys. In practical applications, only a small number of upper forging boxes and lower forging boxes need to be made. Since the weight of the upper forging core and the lower forging core is more than 1 / 2 lighter than the existing integrated tooling device, the amount of metal used to make one integrated tooling device can make two sets of upper forging cores and lower forging cores. That is, by using one set of upper forging box and lower forging core, the metal used to make one integrated tooling device can make two sets of upper forging cores and lower forging cores. The tumbling box can be repeatedly equipped with multiple sets of upper and lower tumbling cores, which can save a lot of metal materials used in the upper and lower tumbling boxes. Under the condition of the same total production volume, the metal consumption of the combined tooling device for bar forging and tumbling is equivalent to one-third of the metal consumption of the original integral tooling. In other words, when the weight of metal consumed in making the two types of tooling devices is the same, the total production volume of the combined tooling device for bar forging and tumbling is about three times that of the integral tooling device, and the economic benefits are very obvious. (2) When it is necessary to repair the combined tooling device for forging and turning the bar, the thickness of the upper and lower cores can be milled. When the thickness of the lower core is exactly the same as that of the integral tooling device, the area to be repaired is only 1 / 3 of that of the integral tooling device. This reduces metal loss, repair time, and repair costs, and improves tooling utilization. Moreover, the upper and lower cores have the same size and structure, can be interchanged, have a simple structure, are easy to manufacture, and can be repaired and reused multiple times. (3) Because the tooling device for forging and turning bar stock requires heat treatment after each maintenance, the integral tooling device requires heat treatment of the entire device. However, the combined tooling device for forging and turning bar stock of this utility model only requires heat treatment of the upper and lower cores. The heat treatment process is exactly the same. The weight of the integral tooling device is about three times that of the lower core. Due to the weight, the heat treatment cost of the combined tooling device for forging and turning bar stock of this utility model is much lower than that of the integral tooling device, thus greatly saving energy. (4) The tooling device for tumbling may be damaged suddenly due to operation or other factors during use. If the integral anvil is damaged, the whole thing will be scrapped. However, the combined structure design can ensure that the upper and lower tumbling boxes are not damaged. In this way, only the upper and lower tumbling cores need to be replaced, which greatly reduces the loss. Attached Figure Description

[0015] Figure 1 This is a front structural view of the combined tooling device for forging and rounding bar stock according to this utility model; Figure 2 This is a side view of the combined tooling device for forging and rounding bar stock according to this utility model; Figure 3 This is a structural diagram of the cylindrical pin key in the combined tooling device for forging and rounding bar stock according to this utility model; Figure 4 This is a structural diagram of the retaining spring in the combined tooling device for forging and rounding bar stock according to this utility model; Figure 5 This is a structural diagram of the gasket in the combined tooling device for forging and rounding bar stock according to this utility model; Figure 6 This is a front view of the upper core in the combined tooling device for forging and rounding bar stock according to this utility model. Figure 7 This is a side view of the upper core in the combined tooling device for forging and rounding bar stock according to this utility model. Figure 8 This is a structural diagram of the upper tumbling box in the combined tooling device for tumbling bar forging of this utility model.

[0016] In the diagram, 1. Upper drop box, 2. Upper drop core, 3. Mounting hole, 4. Lifting hole, 5. Snap ring, 6. Washer, 7. Pin hole, 8. Cylindrical pin key, 9. Cavity, 10. Snap ring groove, 11. Lower drop box, 12. Lower drop core. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0018] Example 1 See Figure 1 and Figure 2 A combined tooling device for forging and rounding bar stock includes an upper forging box 1, a lower forging box 11, an upper forging core 2, and a lower forging core 12. V-shaped grooves are respectively opened on the bottom surface of the upper forging box 1 and the top surface of the lower forging box 11. The upper forging core 2 is installed in the V-shaped groove on the bottom surface of the upper forging box 1, and the lower forging core 12 is installed in the V-shaped groove on the top surface of the lower forging box 11. Both the upper forging core 2 and the lower forging core 12 are V-shaped structural parts, with simple structure and convenient processing.

[0019] The upper core 2 and the lower core 12 form the cavity 9 required for bar forging and rounding. The upper core 2 is connected to the upper box 1 by a pin, and the lower core 12 is connected to the lower box 11 by a pin, which facilitates the installation and disassembly of the upper core 2 and the lower core 12.

[0020] This combined tooling device for forging and rounding bars has a simple structure, low manufacturing and operating costs, high stability during application, is applicable to all specifications of bars without the need for replacement, and can be repaired and reused multiple times.

[0021] Example 2 A combined tooling device for forging and rounding bar stock includes an upper forging box 1, a lower forging box 11, an upper forging core 2, and a lower forging core 12. V-shaped grooves are respectively formed on the bottom surface of the upper forging box 1 and the top surface of the lower forging box 11. The upper forging core 2 is installed in the V-shaped groove on the bottom surface of the upper forging box 1, and the lower forging core 12 is installed in the V-shaped groove on the top surface of the lower forging box 11. The upper forging core 2 and the lower forging core 12 form a cavity 9 required for forging and rounding bar stock. The cavity 9 is a rhomboid finishing hole with arc-shaped upper and lower diagonals.

[0022] The upper drop core 2 is connected to the upper drop box 1 by a pin, and the lower drop core 12 is connected to the lower drop box 11 by a pin.

[0023] See Figures 3-5 The upper drop core 2 and the upper drop box 1 are respectively provided with through pin holes 7. The upper drop core 2 and the upper drop box 1 are fixedly connected by cylindrical pins 8. The cylindrical pins 8 have snap ring grooves 10 machined on both sides. Snap rings 5 ​​are installed in the snap ring grooves 10. A gasket 6 is installed between the snap ring grooves 10 and the lower drop box 11 to improve disassembly efficiency and reduce the failure rate.

[0024] The lower drop core 12 and the lower drop box 11 are also provided with the same pin hole 7 at the corresponding positions, and the lower drop core 12 and the lower drop box 11 are also connected by a cylindrical pin key 8.

[0025] The tooling device for tumbling is susceptible to sudden damage during use due to operation or other factors. If the integral anvil is damaged, the entire device will be scrapped. However, the combined structure design of this utility model can ensure that the upper and lower tumbling boxes are not damaged. In this way, only the upper and lower tumbling cores need to be replaced, which greatly reduces the loss.

[0026] Example 3 A combined tooling device for forging and rounding bar stock includes an upper forging box 1, a lower forging box 11, an upper forging core 2, and a lower forging core 12. V-shaped grooves are respectively formed on the bottom surface of the upper forging box 1 and the top surface of the lower forging box 11. The upper forging core 2 is installed in the V-shaped groove on the bottom surface of the upper forging box 1, and the lower forging core 12 is installed in the V-shaped groove on the top surface of the lower forging box 11. The upper forging core 2 and the lower forging core 12 form a cavity 9 required for forging and rounding bar stock. The cavity 9 is a rhomboid finishing hole with arc-shaped upper and lower diagonals.

[0027] The upper drop core 2 is connected to the upper drop box 1 by a pin, and the lower drop core 12 is connected to the lower drop box 11 by a pin.

[0028] See Figure 6 and Figure 7 The upper drop core 2 and the upper drop box 1 are provided with circular pin holes 7 of the same diameter. The upper drop core 2 and the upper drop box 1 are fixedly connected by a cylindrical pin key 8. The cylindrical pin key 8 is inserted into the circular pin hole, and the two ends of the cylindrical pin key 8 are fixed by a washer 6 and a retaining spring 5.

[0029] The lower drop core 12 and the lower drop box 11 are also fixedly connected by cylindrical pins. The cylindrical pins have retaining ring grooves machined on both sides, in which retaining rings are installed. A gasket is installed between the retaining ring groove and the lower drop box. With this structure, after the upper drop core 2 and lower drop core 12 have undergone use and the cavity has deformed, maintaining the original cavity size requires reducing the thickness of the upper and lower drop cores accordingly. When the upper drop core is repaired and aligned with the upper drop box, or vice versa, it is necessary to consider replacing the upper and lower drop cores. Regarding disassembly, because the drop core and drop box are connected and positioned using pins, the pins may automatically fall off during use. The use of retaining rings and gaskets effectively solves the problem of pins falling off and bending, making disassembly difficult, and improves disassembly efficiency.

[0030] The outer dimensions of the upper tumbling core 2 match the dimensions of the V-shaped groove on the bottom surface of the upper tumbling box 1, and the outer dimensions of the lower tumbling core 12 match the dimensions of the V-shaped groove on the top surface of the lower tumbling box 11. This ensures that the working surfaces of the upper and lower tumbling boxes are subjected to uniform force during the bar forging and rounding process, thereby improving their service life.

[0031] Example 4 A combined tooling device for forging and rounding bar stock includes an upper forging box 1, a lower forging box 11, an upper forging core 2, and a lower forging core 12. V-shaped grooves are respectively formed on the bottom surface of the upper forging box 1 and the top surface of the lower forging box 11. The upper forging core 2 is installed in the V-shaped groove on the bottom surface of the upper forging box 1, and the lower forging core 12 is installed in the V-shaped groove on the top surface of the lower forging box 11. The upper forging core 2 and the lower forging core 12 form a cavity 9 required for forging and rounding bar stock. The cavity 9 is a rhomboid finishing hole with arc-shaped upper and lower diagonals.

[0032] The upper drop core 2 is connected to the upper drop box 1 by a pin, and the lower drop core 12 is connected to the lower drop box 11 by a pin.

[0033] The upper impact core 2 and the upper impact box 1 are fixedly connected by a cylindrical pin key 8, which is fixed by a washer 6 and a retaining spring 5.

[0034] The lower drop core 12 and the lower drop box 11 are also fixedly connected by a cylindrical pin key. The cylindrical pin key has a retaining ring groove machined on both sides, a retaining ring is installed in the retaining ring groove, and a gasket is installed between the retaining ring groove and the lower drop box.

[0035] The outer dimensions of the upper impact core 2 match the dimensions of the V-shaped groove on the bottom surface of the upper impact box 1, and the outer dimensions of the lower impact core 12 match the dimensions of the V-shaped groove on the top surface of the lower impact box 11.

[0036] The bottom surface of the upper dropping core 2 is lower than the bottom surface of the upper dropping box 1, and the top surface of the lower dropping core 12 is higher than the top surface of the lower dropping box 11. This facilitates the maintenance of the upper and lower dropping cores. When the upper and lower dropping cores need to be maintained, it is only necessary to mill the thickness of the upper and lower dropping cores to keep the original cavity unchanged. When the upper dropping core is flush with the upper dropping box after maintenance, the upper dropping core needs to be replaced.

[0037] Example 5 A combined tooling device for forging and rounding bar stock includes an upper forging box 1, a lower forging box 11, an upper forging core 2, and a lower forging core 12. V-shaped grooves are respectively formed on the bottom surface of the upper forging box 1 and the top surface of the lower forging box 11. The upper forging core 2 is installed in the V-shaped groove on the bottom surface of the upper forging box 1, and the lower forging core 12 is installed in the V-shaped groove on the top surface of the lower forging box 11. The upper forging core 2 and the lower forging core 12 form a cavity 9 required for forging and rounding bar stock. The cavity 9 is a rhomboid finishing hole with arc-shaped upper and lower diagonals.

[0038] The upper drop core 2 is connected to the upper drop box 1 by a pin, and the lower drop core 12 is connected to the lower drop box 11 by a pin.

[0039] The upper impact core 2 and the upper impact box 1 are fixedly connected by a cylindrical pin key 8, which is fixed by a washer 6 and a retaining spring 5.

[0040] The lower drop core 12 and the lower drop box 11 are also fixedly connected by a cylindrical pin key 8. The cylindrical pin key 8 has a spring clip groove 10 machined on both sides. A spring clip 5 is installed in the spring clip groove 10. A gasket 6 is installed between the spring clip groove 10 and the lower drop box 11.

[0041] The outer dimensions of the upper impact core 2 match the dimensions of the V-shaped groove on the bottom surface of the upper impact box 1, and the outer dimensions of the lower impact core 12 match the dimensions of the V-shaped groove on the top surface of the lower impact box 11.

[0042] The bottom surface of the upper impact core 2 is lower than the bottom surface of the upper impact box 1, and the top surface of the lower impact core 12 is higher than the top surface of the lower impact box 11, which facilitates the maintenance of the upper impact core 2 and the lower impact core 12.

[0043] See Figure 8 The upper drop box 1 and the lower drop box 11 are respectively provided with mounting holes 3 on both sides, which are used to install and fix the upper drop box 1 and the lower drop box 11 on the operating machine through the mounting holes during use.

[0044] Both the upper and lower impact cores 2 and 12 have lifting holes 4 on their sides to facilitate the replacement and transport of the upper and lower impact cores.

[0045] Because the tooling device for forging and rounding bar stock requires heat treatment after each maintenance, the integral tooling device requires heat treatment of the entire device. However, the combined tooling device for forging and rounding bar stock of this utility model only requires heat treatment of the upper and lower cores. The heat treatment process is exactly the same. The weight of the integral tooling device is about three times that of the lower core. Due to the weight difference, the heat treatment cost of the combined tooling device for forging and rounding bar stock of this utility model is much lower than that of the integral tooling device, thus greatly saving energy.

[0046] Example 6 A combined tooling device for forging and rounding bar stock includes an upper forging box 1, a lower forging box 11, an upper forging core 2, and a lower forging core 12. V-shaped grooves are respectively formed on the bottom surface of the upper forging box 1 and the top surface of the lower forging box 11. The upper forging core 2 is installed in the V-shaped groove on the bottom surface of the upper forging box 1, and the lower forging core 12 is installed in the V-shaped groove on the top surface of the lower forging box 11. The upper forging core 2 and the lower forging core 12 form a cavity 9 required for forging and rounding bar stock. The cavity 9 is a rhomboid finishing hole with arc-shaped upper and lower diagonals.

[0047] The upper drop core 2 is connected to the upper drop box 1 by a pin, and the lower drop core 12 is connected to the lower drop box 11 by a pin.

[0048] The upper impact core 2 and the upper impact box 1 are fixedly connected by a cylindrical pin key 8, which is fixed by a washer 6 and a retaining spring 5.

[0049] The lower drop core 12 and the lower drop box 11 are also fixedly connected by a cylindrical pin key 8. The cylindrical pin key 8 has a spring clip groove 10 machined on both sides. A spring clip 5 is installed in the spring clip groove 10. A gasket 6 is installed between the spring clip groove 10 and the lower drop box 11.

[0050] The outer dimensions of the upper impact core 2 match the dimensions of the V-shaped groove on the bottom surface of the upper impact box 1, and the outer dimensions of the lower impact core 12 match the dimensions of the V-shaped groove on the top surface of the lower impact box 11.

[0051] The bottom surface of the upper impact core 2 is lower than the bottom surface of the upper impact box 1, and the top surface of the lower impact core 12 is higher than the top surface of the lower impact box 11.

[0052] Mounting holes 3 are provided on both sides of the upper drop box 1 and the lower drop box 11. Lifting holes 4 are provided on the sides of the upper drop core 2 and the lower drop core 12.

[0053] The upper and lower impact cores have the same size and structure, can be used interchangeably, and are easy to process and manufacture.

[0054] This invention comprises an upper and lower forging box, an upper forging core, and a lower forging core, assembled into a combined tooling device for forging and rounding bar stock. The upper and lower forging cores form the cavity required for forging and rounding bar stock. The upper forging core is connected to the upper forging box by key pins, and the lower forging core is also connected to the lower forging box by key pins. In practical applications, only a small number of upper and lower forging boxes need to be manufactured. Since the upper and lower forging cores are more than half the weight of existing integrated tooling devices, the amount of metal used to manufacture one integrated tooling device can be used to make two sets of upper and lower forging cores. That is, multiple sets of upper forging cores can be repeatedly used with one set of upper and lower forging boxes. The core and lower core can save a significant amount of metal material used in the upper and lower dropping boxes. When the total production volume is the same, the metal consumption of the combined tooling device for bar forging and dropping is equivalent to one-third of the metal consumption of the original integral tooling. In other words, when the weight of metal consumed in making the two types of tooling devices is the same, the total production volume of the combined tooling device for bar forging and dropping can be about three times that of the integral tooling device, resulting in significant economic benefits. In addition, there will also be significant improvements in other aspects such as transportation costs, loading and unloading fees, and power consumption during installation.

Claims

1. A combined tooling device for forging and rounding bar stock, characterized in that, It includes an upper tumbling box (1), a lower tumbling box (11), an upper tumbling core (2), and a lower tumbling core (12). V-shaped grooves are respectively opened on the bottom surface of the upper tumbling box (1) and the top surface of the lower tumbling box (11). The upper tumbling core (2) is installed in the V-shaped groove on the bottom surface of the upper tumbling box (1), and the lower tumbling core (12) is installed in the V-shaped groove on the top surface of the lower tumbling box (11). The upper tumbling core (2) and the lower tumbling core (12) form a cavity (9) required for bar forging and rounding. The upper tumbling core (2) is connected to the upper tumbling box (1) by a key, and the lower tumbling core (12) is connected to the lower tumbling box (11) by a key.

2. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The cavity (9) is a rhomboid finishing hole, and the upper and lower diagonals of the rhomboid finishing hole are arc-shaped.

3. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The upper impact core (2) and the upper impact box (1) are fixedly connected by a cylindrical pin (8), which is fixed by a washer (6) and a retaining spring (5).

4. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The lower drop core (12) and the lower drop box (11) are fixedly connected by a cylindrical pin key (8). The cylindrical pin key (8) has a spring clip groove (10) machined on both sides. A spring clip (5) is installed in the spring clip groove (10). A gasket (6) is installed between the spring clip groove (10) and the lower drop box (11).

5. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The outer dimensions of the upper impact core (2) match the dimensions of the V-shaped groove on the bottom surface of the upper impact box (1), and the outer dimensions of the lower impact core (12) match the dimensions of the V-shaped groove on the top surface of the lower impact box (11).

6. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The bottom surface of the upper drop core (2) is lower than the bottom surface of the upper drop box (1), and the top surface of the lower drop core (12) is higher than the top surface of the lower drop box (11).

7. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The upper drop box (1) and the lower drop box (11) are respectively provided with mounting holes (3) on both sides.

8. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The upper core (2) and lower core (12) are provided with lifting holes (4) on their sides.

9. The combined tooling device for forging and rounding bars according to claim 1, characterized in that, The upper impact core (2) and the lower impact core (12) have the same size and structure.

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