Special tool for shot blasting of flange shaft forge piece

Abstract

The utility model discloses a special tool for shot blasting of flanged shaft forgings, which comprises a vertically arranged suspender, a hanging ring is arranged at the upper end of the suspender, the suspender is fixedly provided with a lower-layer reinforcing steel bar disc and an upper-layer reinforcing steel bar disc from bottom to top, and a plurality of groups of positioning support rod pieces are uniformly arranged on the lower-layer reinforcing steel bar disc and the upper-layer reinforcing steel bar disc. A flanged shaft forge piece is placed in each group of positioning support rod pieces, the flanged shaft forge piece is obliquely arranged with high outside and low inside, and the inner end of the rod part of the flanged shaft forge piece is in contact with the excircle of the suspender. The device is novel in design, the shot blasting and sand cleaning quantity of the flanged shaft forgings at a time is increased, the flanged shaft forgings can be placed without position adjustment, the device is more convenient and faster, the stability of the forgings on the tool is improved, the phenomena of rolling and falling are avoided, the adjacent forgings are almost not shielded, and the sand cleaning effect is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of the automotive industry, and particularly relates to a special tooling for shot blasting of flange shaft forgings. Background Art

[0002] The shape of the flange shaft forging is as Figure 1 and Figure 2 shown, and it is composed of a disc part 1 and a rod part 2. The disc part 1 has a large cross-sectional area and a small thickness, while the rod part 2 has a small cross-sectional area and a large length.

[0003] There is a heat treatment process during the production of flange shaft forgings. After heat treatment, scale will be generated on the surface of the flange shaft forgings, and shot blasting operation is required to remove the scale. A sand blaster is used for shot blasting to remove the scale. If a traditional drum-type sand blaster is used, the forgings will roll and collide with each other. Since the flange shaft forgings have both slender rods and large thin discs, they may get stuck together during the sand cleaning process, resulting in bending of the rod parts and deformation of the disc parts of the forgings, thus scrapping the forgings. During actual production, a hanging sand blaster is selected, and the forgings are placed on the sand cleaning tooling for sand cleaning. The forgings remain relatively stationary, avoiding collision and deformation of the forgings.

[0004] The hanging sand blaster is equipped with a general-purpose hanging tooling, as Figure 3 and Figure 4 shown, which includes a suspension rod 3 arranged vertically. A hanging ring 4 is provided at the upper end of the suspension rod 3, and a circular steel bar disc 5 (formed by welding multiple concentric circular steel bars and multiple straight steel bars arranged radially) is fixedly provided at the lower end of the suspension rod 3. When using the general-purpose tooling for shot blasting of flange shaft forgings, the following problems exist:

[0005] 1) When the flange shaft forging is placed flat on the steel bar disc 5, it may roll, and even fall below the steel bar disc 5 during shot blasting, affecting the quality of the shot blasting operation, and the same flange shaft forging needs to be shot blasted multiple times;

[0006] 2) Affected by the size of the flange shaft forging itself, and because overlapping placement is not allowed, the number of flange shaft forgings loaded at one time is small;

[0007] 3) In order to place as many flange shaft forgings as possible at one time, workers need to consider the placement position and make adjustments during the placement process, reducing the production efficiency. Content of the Utility Model

[0008] In order to solve the above technical problems existing in the prior art, the utility model provides a special tooling for shot blasting of flange shaft forgings that is easy for workers to place, has strong stability, and a large capacity.

[0009] To solve the above technical problems, the utility model adopts the following technical solutions: a special shot blasting tooling for flange shaft forgings, including a hanging rod arranged vertically. A hanging ring is provided at the upper end of the hanging rod. The lower layer steel bar disc and the upper layer steel bar disc are fixedly arranged on the hanging rod from bottom to top. A number of groups of positioning support members are evenly arranged on the lower layer steel bar disc and the upper layer steel bar disc. Each group of positioning support members places a flange shaft forging. The flange shaft forging is arranged obliquely with a higher outer part and a lower inner part. The inner end of the rod part of the flange shaft forging contacts the outer circle of the hanging rod.

[0010] The lower layer steel bar disc and the upper layer steel bar disc have the same structure, both including a first circular ring bar and a number of horizontal bars. Each horizontal bar is arranged along the radial direction of the hanging rod. All the horizontal bars are evenly arranged in an array along the circumferential direction of the hanging rod. The inner ends of all the horizontal bars are fixedly connected to the outer circle of the hanging rod. The outer ends of all the horizontal bars are fixedly connected to the inner circle of the first circular ring bar.

[0011] Each group of positioning support members includes a long support rod and a short support rod parallel to the hanging rod. The lower ends of the long support rod and the short support rod are both fixedly connected to the horizontal bar. The long support rod is adjacent to the first circular ring bar, and the short support rod is adjacent to the hanging rod. A V-shaped or arc-shaped positioning member is fixedly provided at the upper ends of the long support rod and the short support rod.

[0012] The vertical projections of all the long support rods are located on circle A. The heights of adjacent long support rods are different. The height of each long support rod is equal to that of a long support rod arranged at intervals; the vertical projections of all the short support rods corresponding radially to the longer long support rods are located on circle B, and the vertical projections of all the short support rods corresponding radially to the shorter long support rods are located on circle C. The radius of circle A is greater than the radius of circle B, the radius of circle B is greater than the radius of circle C, and the length of the short support rods on circle B is greater than the length of the short support rods on circle C.

[0013] The first circular ring bar of the lower layer steel bar disc is connected to the first circular ring bar of the upper layer steel bar disc through a number of first vertical rods parallel to the hanging rod.

[0014] A number of second vertical rods extending upward and parallel to the hanging rod are fixedly connected to the first circular ring bar of the upper layer steel bar disc. The upper ends of the second vertical rods are connected to a second circular ring bar. The second circular ring bar is connected to the hanging rod through at least three inclined pull rods arranged obliquely with a higher inner part and a lower outer part.

[0015] With the above technical solution, when the utility model is in use, the flange shaft forging is placed on the positioning members at the upper ends of the long support rods and the positioning members at the upper ends of the short support rods. The flange shaft forging is arranged in an inclined manner with the outer side being higher and the inner side being lower. The rod part of the flange shaft forging is supported and positioned in the V-shaped or arc-shaped groove of the positioning member. Each flange shaft forging is located directly above a horizontal rod (the center line of the flange shaft forging and the center line of the horizontal rod are in the same vertical plane). The disc part of the flange shaft forging is located outside the long support rod. The inner end of the rod part of the flange shaft forging contacts the outer circumference of the hanging rod. The hanging rod restricts the flange shaft forging from sliding downwards. Under the combined positioning of the two positioning members and the hanging rod, the stability of the flange shaft forging is greatly improved, and there is no need to adjust the position during placement, which is more convenient and fast.

[0016] An upper layer steel bar disc and a lower layer steel bar disc are fixedly arranged on a hanging rod, and the number of flange disc forgings placed in the tooling increases exponentially. In addition, in order to arrange as many horizontal rods as possible (equal to the number of flange disc forgings), the lengths of the long support rods and the short support rods on two adjacent horizontal rods on each layer of steel bar disc are different in height, so that when placing the flange disc forgings, the adjacent flange disc forgings will not contact each other. Since the gap between two adjacent horizontal rods gradually becomes smaller as the horizontal rod is closer to the hanging rod, the adjacent two short support rods are staggered in the radial direction (the vertical projection of half of the short support rods arranged at intervals is located on circle B, and the vertical projection of the other half of the short support rods arranged at intervals is located on circle C), so as to ensure that the positioning members at the upper ends of the short support rods can be arranged staggeredly.

[0017] The setting of the first vertical rod, the second vertical rod, the second circular ring rib and the inclined pull rod firmly connects the lower layer steel bar disc and the upper layer steel bar disc into one body, ensuring that the lower layer steel bar disc and the upper layer steel bar disc will not deform after placing a large number of flange shaft forgings.

[0018] In summary, the utility model has a novel design, increases the number of shot blasting and sand cleaning of flange shaft forgings at one time, does not need to adjust the position when placing the flange shaft forgings, is more convenient and fast, improves the stability of the forgings on the tooling, avoids the phenomena of rolling and falling, there is almost no shielding between adjacent forgings, and also improves the sand cleaning effect. Description of the Drawings

[0019] Figure 1 is a structural schematic diagram of a flange shaft forging;

[0020] Figure 2 is Figure 1 the top view of

[0021] Figure 3 is a structural schematic diagram of an existing general-purpose hanging tooling;

[0022] Figure 4 is Figure 3 the top view of

[0023] Figure 5is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 6 is a planar structural schematic diagram of the present utility model;

[0025] Figure 7 is Figure 6 the top view of Specific Embodiment

[0026] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and examples.

[0027] Figures 5 - 7 As shown, the special shot blasting tooling for flange shaft forgings of the present utility model includes a hanging rod 3 arranged vertically. A hanging ring (not shown in the figure) is provided at the upper end of the hanging rod 3. The lower layer steel bar disc 6 and the upper layer steel bar disc 7 are fixedly arranged on the hanging rod 3 from bottom to top. A number of groups of positioning support members are evenly arranged on the lower layer steel bar disc 6 and the upper layer steel bar disc 7. Each group of positioning support members places a flange shaft forging 8. The flange shaft forging 8 is inclined with the outer part high and the inner part low. The inner end of the rod part of the flange shaft forging 8 contacts the outer circle of the hanging rod 3.

[0028] The lower layer steel bar disc 6 and the upper layer steel bar disc 7 have the same structure, and both include a first circular ring bar 9 and several horizontal bars 10. Each horizontal bar 10 is arranged along the radial direction of the hanging rod 3. All the horizontal bars 10 are evenly arranged in an array along the circumferential direction of the hanging rod 3. The inner ends of all the horizontal bars 10 are fixedly connected to the outer circle of the hanging rod 3, and the outer ends of all the horizontal bars 10 are fixedly connected to the inner circle of the first circular ring bar 9.

[0029] Each group of positioning support members includes a long support rod 11 and a short support rod 12 parallel to the hanging rod 3. The lower ends of the long support rod 11 and the short support rod 12 are fixedly connected to the horizontal bar 10. The long support rod 11 is adjacent to the first circular ring bar 9, and the short support rod 12 is adjacent to the hanging rod 3. A V-shaped or arc-shaped positioning member 13 is fixedly provided at the upper ends of the long support rod 11 and the short support rod 12.

[0030] The vertical projections of all the long support rods 11 are located on circle A. The heights of adjacent long support rods 11 are different, and the height of each long support rod 11 is equal to that of a long support rod 11 arranged at intervals; the vertical projections of all the short support rods 12 corresponding radially to the longer long support rods 11 are located on circle B, and the vertical projections of all the short support rods 12 corresponding radially to the shorter long support rods 11 are located on circle C. The radius of circle A is greater than the radius of circle B, the radius of circle B is greater than the radius of circle C, and the length of the short support rods 12 on circle B is greater than the length of the short support rods 12 on circle C.

[0031] The first circular ring bar 9 of the lower layer steel bar disc 6 is connected to the first circular ring bar 9 of the upper layer steel bar disc 7 by several first vertical rods 14 parallel to the hanging rod 3.

[0032] Several second vertical rods 15 extending upward and parallel to the hanger 3 are fixedly connected to the first circular reinforcement 9 of the upper steel plate 7. The upper end of the second vertical rod 15 is connected to the second circular reinforcement 16. The second circular reinforcement 16 is connected to the hanger 3 through at least three inclined rods 17 with the inner side higher and the outer side lower.

[0033] The number of the first vertical rods 14 and the second vertical rods 15 is less than 12, so that the flange forging 8 can be taken and placed through the space between adjacent vertical rods.

[0034] When the present invention is in use, the flange shaft forging 8 is placed on the positioning piece 13 at the upper end of the long support rod 11 and the positioning piece 13 at the upper end of the short support rod 12. The flange shaft forging 8 is tilted so that it is higher on the outside and lower on the inside. The rod support of the flange shaft forging 8 is positioned in the V-shaped or arc-shaped groove of the positioning piece 13. Each flange shaft forging 8 is located directly above a horizontal rod 10 (the center line of the flange shaft forging 8 and the center line of the horizontal rod 10 are located in the same vertical plane). The disk of the flange shaft forging 8 is located outside the long support rod 11. The inner end of the rod of the flange shaft forging 8 contacts the outer circle of the hanger rod 3. The hanger rod 3 limits the flange shaft forging 8 from sliding downward. Under the joint positioning of the two positioning pieces 13 and the hanger rod 3, the stability of the flange shaft forging 8 is greatly improved, and there is no need to adjust the position when placing it, which is more convenient and quick.

[0035] An upper steel plate 7 and a lower steel plate 6 are fixedly mounted on a hanger 3, and the number of flange forgings placed in the tooling is multiplied. In addition, in order to arrange as many horizontal rods 10 as possible (equal to the number of flange forgings), the long support rods 11 and the short support rods 12 on the two adjacent horizontal rods 10 on each layer of steel plates are of different lengths. In this way, when the flange forgings are placed, the adjacent flange forgings will not contact each other. As the horizontal rod 10 gets closer to the hanger 3, the gap between the two adjacent horizontal rods 10 gradually becomes smaller. Therefore, the two adjacent short support rods 12 are staggered in the radial direction (the vertical projection of half of the short support rods 12 arranged at intervals is located on circle B, and the vertical projection of the other half of the short support rods 12 arranged at intervals is located on circle C). This ensures that the positioning members 13 at the upper ends of the short support rods 12 can be staggered.

[0036] The arrangement of the first vertical rod 14, the second vertical rod 15, the second annular reinforcement 16, and the diagonal tie rod 17 securely connects the lower steel plate 6 and the lower steel plate 6 together, ensuring that the lower steel plate 6 and the lower steel plate 6 will not deform after being placed with a large number of flange shaft forgings 8. If two adjacent horizontal rods 10 can be set at 15 degrees, each layer of steel plate can accommodate 24 (360 degrees / 15 degrees) flange shaft forgings 8. Two layers can prevent 48 flange shaft forgings 8 at a time, thus greatly improving the production efficiency of shot blasting and sand cleaning operations.

[0037] The utility model has been proven through actual testing that after the flange shaft forging 8 is shot blasted and sand cleaned:

[0038] ① The shot blasting and sand cleaning time of each batch of flange shaft forgings 8 is reduced by 10 minutes;

[0039] ② The number of sand cleaned forgings per batch is 4 times that of using the general tooling;

[0040] ③ The operation difficulty of workers is greatly reduced.

[0041] The above embodiments illustrate the basic principles and characteristics of the present utility model. However, the above only illustrates the preferred embodiments of the present utility model and is not limited by the described embodiments. Those of ordinary skill in the art, inspired by this patent and without departing from the purpose of the present utility model and the scope protected by the claims, can also make many forms of deformation and improvement, and these all fall within the protection scope of the present utility model. Therefore, the patent and protection scope of the present utility model shall be subject to the appended claims.

Claims

1. A special tooling for shot peening of flange shaft forgings, including a hanging rod arranged vertically, and a hanging ring is provided at the upper end of the hanging rod, characterized in that: The suspension rod is fixedly provided with a lower layer steel bar disc and an upper layer steel bar disc from bottom to top. A number of groups of positioning support members are evenly arranged on the lower layer steel bar disc and the upper layer steel bar disc. A flange shaft forging is placed on each group of positioning support members. The flange shaft forging is inclined with the outer part higher and the inner part lower, and the inner end of the rod part of the flange shaft forging contacts the outer circle of the suspension rod.

2. The special tooling for shot peening of the flange shaft forging according to claim 1, wherein: The lower layer steel bar disc and the upper layer steel bar disc have the same structure, and both include a first circular bar and a number of horizontal bars. Each horizontal bar is arranged along the radial direction of the suspension rod. All the horizontal bars are evenly arranged in an array along the circumferential direction of the suspension rod. The inner ends of all the horizontal bars are fixedly connected to the outer circle of the suspension rod, and the outer ends of all the horizontal bars are fixedly connected to the inner circle of the first circular bar.

3. The special tooling for shot peening of the flange shaft forging according to claim 2, characterized in that: Each group of positioning support members includes a long support rod and a short support rod parallel to the suspension rod. The lower ends of the long support rod and the short support rod are both fixedly connected to the horizontal bar. The long support rod is adjacent to the first circular bar, and the short support rod is adjacent to the suspension rod. A V-shaped or arc-shaped positioning member is fixedly provided at the upper ends of the long support rod and the short support rod.

4. The special tooling for shot peening of flange shaft forgings according to claim 3, wherein: The vertical projections of all the long support rods are located on circle A. The heights of adjacent long support rods are different, and the height of each long support rod is equal to that of a long support rod arranged at intervals; the vertical projections of all the short support rods corresponding radially to the longer long support rods are located on circle B, and the vertical projections of all the short support rods corresponding radially to the shorter long support rods are located on circle C. The radius of circle A is greater than the radius of circle B, the radius of circle B is greater than the radius of circle C, and the length of the short support rods on circle B is greater than the length of the short support rods on circle C.

5. The special shot peening tooling for the flange shaft forging according to any one of claims 2-4, characterized in that: The first circular bar of the lower layer steel bar disc is connected to the first circular bar of the upper layer steel bar disc through a number of first vertical rods parallel to the suspension rod.

6. The special tooling for shot peening of flange shaft forgings according to any one of claims 2-4, characterized in that: A number of second vertical rods extending upward and parallel to the suspension rod are fixedly connected to the first circular bar of the upper layer steel bar disc. The upper ends of the second vertical rods are connected to a second circular bar. The second circular bar is connected to the suspension rod through at least three inclined pull rods with the inner part higher and the outer part lower.

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