Torsion beam shot blasting hanger and assembly method thereof

Abstract

The invention provides a torsion beam shot blasting hanger and an assembling method thereof. The torsion beam shot blasting hanger comprises a hanger rotating shaft, a fixed chuck and a presser, and an upper pressing plate and a lower base are arranged at the two ends of the hanger rotating shaft respectively; the fixed chuck is arranged on the hanger rotating shaft and is positioned between the upper pressing plate and the lower base; the compactor is arranged on one side, close to the fixed chuck, of the upper pressing plate or the lower base and protrudes out of the surface, abutting against the torsion beam, of the upper pressing plate or the lower base. According to the shot blasting hanger, hanging rod hooks at the two ends of an existing shot blasting hanger structure are replaced by the upper pressing plate and the lower base, the torsion beam product can be fixed in the axial direction and the lateral direction by being matched with the installed fixing chuck, and therefore the problems that the product is not firmly fixed, and the labor intensity of workers is large and the efficiency is low in the product assembling process are solved.

Description

Technical Field

[0001] The invention relates to the technical field of shot blasting, and in particular to a torsion beam shot blasting rack and an assembly method thereof. Background Art

[0002] Torsion beam semi-independent suspension is a commonly used rear suspension structure for automobiles. Its advantages are simple chassis structure, fewer parts, low cost, good processability, and larger rear space. It is widely used in the rear suspension system of small and medium-sized automobiles. Existing torsion beam products need to be shot blasted on the outer surface of the product after heat treatment.

[0003] At present, torsion beam shot blasting racks are all designed with hook schemes. The design idea is to fix a circle of shot blasting brackets on a bare rod by welding or screws, weld hook fixing rods on the shot blasting brackets according to the number of hooks, and fix a circle of brackets on the bottom of the bare rod by welding or screws to fix or support the product to prevent the product from swinging greatly during shot blasting. When working, the hooks need to be hooked on the product holes one by one, and then the hooks are symmetrically installed on the hook fixing rods in sequence. The hook scheme can be referred to as the attached Figure 1 shown.

[0004] At present, there are several problems in the production of torsion beam shot blasting racks:

[0005] 1. After shot blasting, the steel balls enter the inner wall cavity of the product through the two ports and the hook hole of the product, and are stuck in the middle fitting part and are difficult to remove. The risk caused is that during the product bench and road test, the torsion beam torsion and the friction with the steel balls produce abnormal noise;

[0006] 2. Workers need to operate symmetrically when loading and unloading materials, otherwise the products are prone to tilt and fall off, which increases the labor intensity of workers;

[0007] 3. The torsion beam hook has low strength and is easy to wear after shot blasting, resulting in the risk of complicated hook replacement and product falling off;

[0008] 4. The rack strength is weak, it is not easy to put too many products in a single production, and the production efficiency is low;

[0009] 5. The product is not firmly fixed, and the product swings during shot blasting, making it easy to fall off in the furnace cavity, causing product damage and equipment damage.

[0010] For the above problems, existing solutions generally include:

[0011] 1. After shot blasting, first hold the product on the ground and vibrate at both ends to remove most of the steel shots, and then use a high-pressure air gun to blow air on the inner wall to remove them; this solution is inefficient, labor-intensive, and the steel shots in the middle cannot be removed;

[0012] 2. Manually plug the two ports of the product with rags or fill with foaming agents and other items before shot blasting, and manually remove the plugged items one by one after shot blasting; this solution is inefficient, the operation steps are complicated, and the steel shot is easy to fall into the inner wall cavity of the product when removing the filler;

[0013] 3. Special rubber plugs are made according to the mouth shapes of different products, and are inserted into the two ports of the torsion beam product in turn before shot blasting, and then the rubber plugs are taken out in turn after shot blasting. This solution can prevent most steel shots from entering the torsion beam cavity, but some steel shots still enter the inner wall of the cavity through the hook holes and are difficult to remove. In addition, the rubber plugs are not universal, the cost of use is high, the efficiency is low, and the rubber plugs will wear out due to long-term use. There is a risk of the rubber plugs falling off during use.

[0014] Therefore, without changing the existing shot blasting equipment, the present invention proposes a new type of torsion beam product shot blasting hanger solution, and makes some optimizations on the hanger structure to solve the product abnormal noise caused by the steel shot entering the product cavity during the shot blasting process, as well as the manual labor intensity and inefficient production method brought by the existing hook solution.

[0015] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention and does not constitute any limitation to the present invention. Summary of the invention

[0016] In view of the shortcomings of the prior art mentioned above, the present invention provides a torsion beam shot blasting hanger and an assembly method thereof, by replacing the hanging rod hooks at both ends of the existing shot blasting hanger structure with an upper pressure plate and a lower base, and cooperating with the installed fixing chuck, the torsion beam product can be fixed in the axial and lateral directions, so as to solve the problems of loose product fixation, high manual labor intensity and low efficiency in product assembly.

[0017] The present invention provides a torsion beam shot blasting rack, comprising a rack rotating shaft, a fixed chuck and a clamp, wherein an upper pressing plate and a lower base are respectively installed at two ends of the rack rotating shaft; the fixed chuck is installed on the rack rotating shaft and is located between the upper pressing plate and the lower base; the clamp is installed on a side of the upper pressing plate or the lower base close to the fixed chuck and protrudes from the surface of the upper pressing plate or the lower base abutting against the torsion beam.

[0018] In one embodiment of the present invention, there are two fixed chucks, and the two fixed chucks are respectively located on the rotating shaft of the rack close to the upper pressing plate and the lower base.

[0019] In one embodiment of the present invention, the fixed chuck also includes a third one, and the third fixed chuck is located on the rack rotation axis in the middle between the upper pressure plate and the lower base.

[0020] In one embodiment of the present invention, a fixing sleeve is further included. The fixing sleeve is disposed on the rotating shaft of the rack and is at least located at the lower side of the fixing chuck to position the fixing chuck at a corresponding position of the rotating shaft of the rack.

[0021] In one embodiment of the present invention, the clamp is respectively mounted on one side of the upper pressing plate and the lower base close to the fixed chuck.

[0022] In one embodiment of the present invention, rubber pads are installed on the surfaces of the upper pressing plate and the lower base close to the fixed chuck.

[0023] In one embodiment of the present invention, a locking nut is further included. The locking nut is threadedly connected to the rotating shaft of the bracket. The locking nut is located on the upper side of the upper pressure plate and moves toward the lower base by rotating and pressing the upper pressure plate.

[0024] In one embodiment of the present invention, a spring is further included. The spring is installed between the upper pressing plate and a fixed chuck close to the upper pressing plate, and the spring is used to support the upper pressing plate to bounce away from the lower base.

[0025] In one embodiment of the present invention, a protective cover is further installed on the presser.

[0026] The present invention also provides a method for assembling a torsion beam shot blasting rack, comprising:

[0027] Determine the product hole: install the rubber plug into the product hole according to whether there is a product hole on the torsion beam;

[0028] Vertical clamping: Place the torsion beam product in a vertical position into the rotating shaft of the rack and align it with the fixed chuck;

[0029] Lower end clamping: operate the clamping device on the lower base to clamp the bottom end of the torsion beam;

[0030] Axial compression: Rotate the locking nut on the rotating shaft of the rack to press the upper pressure plate and its rubber pad downward to axially compress and seal the torsion beam product;

[0031] Upper end clamping: operate the clamping device of the upper pressure plate to clamp the top of the torsion beam to complete the assembly of the torsion beam on the shot blasting rack.

[0032] The beneficial effects of the present invention are as follows: by replacing the hooks of the hanging rods at both ends of the existing shot blasting rack structure with an upper pressure plate and a lower base, and cooperating with the installed fixed chuck, the shot blasting rack structure is improved and easy to process and manufacture. The fixed chuck has high strength, which avoids the problems of wear and tear replacement and product shedding caused by shot blasting. The improved shot blasting rack structure can fix the torsion beam product in the axial and lateral directions. When the shot blasting rack is in use, the size of the fixed chuck and the number of teeth can be flexibly designed according to the product production volume, thereby improving the assembly and production efficiency of the shot blasting product.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0035] Figure 1 It is a structural schematic diagram of a hook-type shot blasting rack in an existing solution;

[0036] Figure 2 It is a structural schematic diagram of the shot blasting rack of the present invention;

[0037] Figure 3 It is a schematic diagram of the split structure of the shot blasting rack of the present invention;

[0038] Figure 4 It is a schematic diagram of the structure of the torsion beam assembled on the shot blasting rack of the present invention;

[0039] Figure 5 The present invention is a flowchart of the torsion beam shot blasting rack assembly method.

[0040] In the figure: 1. bracket rotating shaft; 10. lifting ring; 100. torsion beam product; 2. fixing chuck; 3. clamp; 30. protective cover; 4. upper pressure plate; 5. lower base; 6. fixing sleeve; 7. rubber pad; 8. locking nut; 9. spring. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied by other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are to describe specific specific embodiments, rather than to limit the scope of protection of the present invention.

[0042] See also Figures 2 to 5. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as position and quantitative relationship cited in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0043] See also Figures 2 to 4 The present invention provides a torsion beam shot blasting rack, comprising a rack rotating shaft 1, a fixed chuck 2 and a clamp 3, wherein an upper pressing plate 4 and a lower base 5 are respectively mounted at both ends of the rack rotating shaft 1; the fixed chuck 2 is mounted on the rack rotating shaft 1 and is located between the upper pressing plate 4 and the lower base 5; the clamp 3 is mounted on one side of the upper pressing plate 4 or the lower base 5 close to the fixed chuck 2, and protrudes from the surface of the upper pressing plate 4 or the lower base 5 against the torsion beam.

[0044] Specifically, in an embodiment of the present invention, the distance between the upper pressure plate 4 and the lower base 5 corresponds to the length of the torsion beam, so as to install the torsion beam on the shot blasting rack at a vertical angle and realize the axial limitation of the torsion beam. The fixed chuck 2 is provided with a clamping tooth corresponding to the outer contour of the torsion beam, which is used to clamp the installed torsion beam to realize the preliminary positioning and clamping of the torsion beam. A clamp 3 installed on the upper pressure plate 4 or the lower base 5 is selected to abut the outer side of the end of the torsion beam, and the fixed chuck 2 abuts the radial inner side of the torsion beam, that is, the fixed chuck 2 and the clamp 3 respectively limit the movement of the torsion beam to the inside and outside of the shot blasting rack, and cooperate with the two ends of the torsion beam to abut on the upper pressure plate 4 and the lower base 5, so as to complete the assembly of the torsion beam to the fixed position of the shot blasting rack. Thereby maintaining the stability of the torsion beam product 100 during the shot blasting process and ensuring its shot blasting effect.

[0045] More specifically, the rack rotating shaft 1 is a shaft-type part, and the fixed chuck 2, the upper pressing plate 4 and the lower base 5 thereon can be sleeved, that is, the fixed chuck 2, the upper pressing plate 4 and the lower base 5 can rotate on the rack rotating shaft 1. In this way, after the torsion beam is placed in the fixed chuck 2, the angle of the upper pressing plate 4 or the lower base 5 can be adjusted according to the position of the two ends of the torsion beam, so that the clamp 3 thereon corresponds to the end of the torsion beam, and then the clamp 3 is used to clamp one end of the torsion beam to complete the fixation.

[0046] On the basis of the existing shot blasting rack structure, the hooks of the hanging rods at both ends are replaced with the upper pressure plate 4 and the lower base 5, and the fixed chuck 2 is installed therein to complete the transformation of the shot blasting rack. The same operation steps can be used when using the shot blasting rack, such as installing the torsion beam on the shot blasting rack, and installing it in the operation room of the shot blasting equipment through the hanging ring 10 of the shot blasting rack. There is no need to change the structure of the existing shot blasting equipment. The structure of the shot blasting rack is simple to improve, easy to process and manufacture, and low in cost. The stable structure of the shot blasting rack can reduce the labor intensity during manual feeding. The fixed chuck 2 has high strength and is not easy to wear, which solves the problem of frequent wear and replacement and product falling off when using the hook. Compared with the hook structure, it is difficult to fix the torsion beam product 100. During shot blasting, the product is prone to bumping, scratching, falling off, etc. under the action of the rotating centrifugal force. The improved rack structure can fix the torsion beam product 100 in both the axial and lateral directions, and can effectively avoid the problems caused by loose fixation during shot blasting. When the shot blasting rack is in use, the size of the fixed chuck 2 and the number of teeth can be flexibly designed according to the product production volume, thereby improving the assembly and production efficiency of the shot blasting products.

[0047] It should be noted that, in order to be applicable to all torsion beam products such as open beams and closed tube beams, the product pipe mouth and product hole of the shot blasting torsion beam can be completely blocked to prevent steel shot from entering the inner wall cavity of the product. Similarly, for V-shaped beams, U-shaped beams and various mouth-shaped torsion beam products, the clamping teeth of the fixed chuck 2 can be designed into corresponding diversified structures such as insert-type quick-change structures. When producing torsion beams of different shapes, the clamping teeth inserts can be directly replaced. The axial clamping of the torsion beam between the upper pressing plate 4 and the lower base 5 can adopt a nut spinning structure, or it can be replaced by lever clamping or cylinder, oil cylinder and other structures. The clamping device 3 that realizes radial limit on the upper pressing plate 4 or the lower base 5, that is, the lateral clamping device 3 can use Misumi standard parts (such as model QLSCL15NR), and the clamping device 3 can also be replaced by lever clamping or cylinder, oil cylinder and other structures, which will not be repeated here.

[0048] In one embodiment, the fixed chuck 2 includes two, and the two fixed chucks 2 are respectively located on the rack rotating shaft 1 near the upper pressure plate 4 and the lower base 5. The fixed chuck 2 is used to perform preliminary positioning and clamping of the torsion beam product 100 loaded on the shot blasting rack, and provide lateral support and limiting. Therefore, for the fixed chuck 2 installed on the rack rotating shaft 1, one can be installed at any position between the upper pressure plate 4 and the lower base 5, and then cooperate with the clamp 3 to complete the lateral fixation of the torsion beam. The fixed chuck 2 can also use two fixed chucks 2 respectively installed at positions close to the upper pressure plate 4 and the lower base 5, so that when performing preliminary positioning and clamping, the two ends of the torsion beam can be aligned and placed on the two fixed chucks 2 in sequence, which is more stable during preliminary positioning and clamping compared to the case of one fixed chuck 2.

[0049] See also Figure 2 and Figure 3 In one embodiment, the fixed chuck 2 also includes a third one, and the third fixed chuck 2 is located on the rack rotating shaft 1 at the middle position between the upper pressure plate 4 and the lower base 5.

[0050] Specifically, in an embodiment of the present invention, a solution of installing three fixed chucks 2 on the rack rotating shaft 1 can be adopted. Compared with the solution of two fixed chucks 2, in the process of preliminary positioning and clamping the torsion beam, the manual operation uses the fixed chuck 2 in the middle position of the rack rotating shaft 1 as a reference to install the torsion beam, and then determines whether the two ends are installed in the corresponding fixed chucks 2. There is no need to align the two ends of the torsion beam and place them in the corresponding fixed chucks 2 in turn, which optimizes the operation of preliminary positioning and clamping.

[0051] See also Figures 2 to 4 In one embodiment, it also includes a fixing sleeve 6, which is installed on the rack rotating shaft 1 and is at least located on the lower side of the fixed chuck 2 to position the fixed chuck 2 at a corresponding position of the rack rotating shaft 1.

[0052] Specifically, in the embodiment of the present invention, the fixed chuck 2 is used to limit the torsion beam product 100 placed therein to be shot blasted, and is fixed in cooperation with the clamp 3. At the same time, in order to facilitate the assembly of the torsion beam product 100 on the shot blasting rack, the fixed chuck 2 can be sleeved on the rack rotating shaft 1, that is, the fixed chuck 2 can be rotated on the rack rotating shaft 1 to align the position of the torsion beam during the initial positioning and clamping, so as to achieve the assembly of multiple torsion beam products 100 at the same position on one side of the shot blasting rack. At the same time, through the rotatable design, the three fixed chucks 2 do not need to control the angle difference between them when they are installed on the rack rotating shaft 1, which facilitates the assembly of the shot blasting rack. In this way, the position of the fixed chuck 2 on the rack rotating shaft 1 is controlled by the fixed sleeve 6, and it can also be adaptively adjusted according to the outer contour of the shot blasting product such as the torsion beam, so that the fixed chuck 2 can maintain a close and clamping effect on the torsion beam and other products assembled on the shot blasting rack.

[0053] It should be noted that, for the fixed chuck 2 in the middle of the rack rotating shaft 1, its corresponding fixed sleeve 6 can also be arranged on both sides thereof to prevent the sleeve-mounted fixed chuck 2 from moving up and down and affecting the positioning of the torsion beam and other shot blasting products. For the fixed chuck 2 at the upper pressure plate 4 and the lower base 5, the fixed sleeve 6 can be arranged separately below them. The fixed chuck 2 at the upper pressure plate 4 is fixed by the force of the upper pressure plate 4 itself, and the fixed chuck 2 at the lower base 5 is fixed by the abutment of the assembled torsion beam and other shot blasting products. Similarly, please refer to the attached Figure 2, a fixing sleeve 6 can also be arranged above the fixing chuck 2 at the lower base 5, so that the three fixing chucks 2 are all positioned at the corresponding positions of the rack rotating shaft 1. The lower base 5 is also positioned by two fixing sleeves 6, and the distance between the lower base 5 and the upper pressing plate 4 is adjusted to adapt to shot blasting products such as torsion beams of different lengths, thereby increasing the scalability of the shot blasting rack.

[0054] In one embodiment, the presser 3 is respectively mounted on the upper pressing plate 4 and the lower base 5 on one side close to the fixed chuck 2. A protective cover 30 is also mounted on the presser 3. A rubber pad 7 is mounted on the surface of the upper pressing plate 4 and the lower base 5 on one side close to the fixed chuck 2.

[0055] Specifically, in the embodiment of the present invention, the clamp 3 can also be installed on the upper pressing plate 4 and the lower base 5 at the same time, so as to replace the abutment of the side surface of one end of the torsion beam by a single clamp 3. Compared with the case where one clamp 3 is used, the other end of the torsion beam is positioned by the upper pressing plate 4 or the lower base 5 abutting against the end surface of the torsion beam. The clamp 3 arranged on the upper pressing plate 4 and the lower base 5 at the same time, in conjunction with the fixing chuck 2 at the upper pressing plate 4 and the lower base 5, respectively abuts against the inner and outer sides of the end of the torsion beam on the shot blasting rack, so that the positioning and fixing effect is better and firmer, ensuring the lateral support effect for the torsion beam and other shot blasting products.

[0056] More specifically, the protective cover 30 on the clamp 3 is used for protection during shot blasting, and the rubber pad 7 installed on the upper pressure plate 4 and the lower base 5 is used to seal the port of the torsion beam product 100. At the same time, a rubber plug can be used to plug the product hole of the torsion beam before shot blasting to prevent steel shots from entering the inner wall through the product hole during shot blasting.

[0057] See also Figure 3 and Figure 4 In one embodiment, a locking nut 8 is further included. The locking nut 8 is threadedly connected to the rack rotating shaft 1. The locking nut 8 is located on the upper side of the upper pressing plate 4 and rotates to press the upper pressing plate 4 to move toward the lower base 5. A spring 9 is also included. The spring 9 is installed between the upper pressing plate 4 and the fixed chuck 2 close to the upper pressing plate 4. The spring 9 is used to support the upper pressing plate 4 to bounce away from the lower base 5.

[0058] Specifically, in the embodiment of the present invention, the upper pressing plate 4 is fixed to the torsion beam and other products assembled on the shot blasting rack by the spinning push of the locking nut 8, and the force exerted by the rubber pad 7 of the upper pressing plate 4 and the lower base 5 on the torsion beam and other shot blasting products can be controlled by the feed amount of the locking nut 8 to ensure that the force exerted on the rubber pad 7 is sufficient to seal the ports of the torsion beam and other shot blasting products. At the same time, the spring 9 installed between the upper pressing plate 4 and the fixed chuck 2 at its position will bounce up the upper pressing plate 4 to release the space of the torsion beam product 100 when the locking nut 8 is rotated to loosen, and the upper pressing plate 4 is placed in a high position when the torsion beam is assembled, thereby facilitating the loading and unloading of the torsion beam and other shot blasting products in the shot blasting rack.

[0059] See also Figure 5 The present invention also provides a method for assembling a torsion beam shot blasting rack, comprising:

[0060] Determine the product hole: install the rubber plug into the product hole according to whether the torsion beam product 100 has a product hole;

[0061] Vertical clamping: put the torsion beam product 100 into the rack rotating shaft 1 in a vertical posture and align it with the fixed clamping plate 2;

[0062] Lower end clamping: operate the clamping device 3 of the lower base 5 to clamp the bottom end of the torsion beam product 100;

[0063] Axial compression: Rotate the locking nut 8 on the rotating shaft 1 of the rack to press the upper pressure plate 4 and its rubber pad 7 downward, and axially compress and seal the torsion beam product 100;

[0064] Upper end clamping: operate the clamping device 3 of the upper pressing plate 4 to clamp the top of the torsion beam product 100 to complete the assembly of the torsion beam product 100 on the shot blasting rack.

[0065] Specifically, in an embodiment of the present invention, the rubber plugs are sequentially inserted into the holes of the torsion beam product 100 under the shot blasting line (this step can be omitted for the torsion beam product 100 without holes). The torsion beam product 100 is then placed vertically on the rubber pad 7 of the lower base 5 of the shot blasting rack, and aligned with the three fixed chucks 2 on the rotating shaft 1 of the rack, and the clamp 3 of the lower base 5 is operated to clamp the torsion beam product 100. Then the locking nut 8 is rotated to press the upper pressure plate 4 and its rubber pad 7 downward to axially compress the product, and the rubber pad 7 is closed with the pipe mouth to play a sealing role; similarly, the clamp 3 of the upper half is operated to close in sequence to fix the product laterally. Finally, after the loading step is completed, the shot blasting rack enters the equipment through the track for shot blasting; after the shot blasting is completed, the locking nut 8 is first loosened, and then the clamp 3 is loosened in sequence to take out the product. In this way, the loading and unloading actions of the entire set of shot blasting racks are completed.

[0066] In summary, the present invention provides a torsion beam shot blasting rack and its assembly method, which replaces the hanging rod hooks at both ends of the existing shot blasting rack structure with an upper pressure plate and a lower base, and installs a fixed chuck therein. The same operating steps can be used when using the shot blasting rack, and it can be installed in the operation room of the shot blasting equipment through the hanging ring of the shot blasting rack. At the same time, the structure of the shot blasting rack is stable and there is no need to control the situation of tipping due to unstable center of gravity during loading, which reduces the labor intensity during manual loading. The improved rack structure can fix the torsion beam product in both axial and lateral directions, and can effectively avoid problems caused by loose fixation during shot blasting. When in use, the shot blasting rack can also flexibly design the size of the fixed chuck and the number of teeth according to the product production volume, thereby improving the assembly and production efficiency of the shot blasting products.

[0067] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A torsion beam shot blasting rack, characterized in that: include: A rack rotating shaft (1), wherein an upper pressing plate (4) and a lower base (5) are respectively mounted at both ends of the rack rotating shaft (1); A fixed chuck (2), the fixed chuck (2) being mounted on the rack rotating shaft (1) and located between the upper pressing plate (4) and the lower base (5); and A clamp (3), the clamp (3) being mounted on a side of the upper pressure plate (4) or the lower base (5) close to the fixed chuck (2), and protruding from a surface of the upper pressure plate (4) or the lower base (5) abutting against the torsion beam.

2. The shot blasting rack according to claim 1, characterized in that: The fixed chucks (2) include two, and the two fixed chucks (2) are respectively located on the rack rotation axis (1) close to the upper pressure plate (4) and the lower base (5).

3. The shot blasting rack according to claim 2, characterized in that: The fixed chuck (2) also includes a third one, and the third fixed chuck (2) is located on the rack rotating shaft (1) at the middle position between the upper pressure plate (4) and the lower base (5).

4. The shot blasting rack according to claim 3, characterized in that: It also comprises a fixing sleeve (6), which is mounted on the rack rotating shaft (1) and is at least located on the lower side of the fixing chuck (2) so as to position the fixing chuck (2) at a corresponding position on the rack rotating shaft (1).

5. The shot blasting rack according to claim 1, characterized in that: The clamp (3) is respectively mounted on one side of the upper pressing plate (4) and the lower base (5) close to the fixed chuck (2).

6. The shot blasting rack according to claim 1, characterized in that: Rubber pads (7) are installed on the surfaces of the upper pressing plate (4) and the lower base (5) on the side close to the fixed chuck (2).

7. The shot blasting rack according to claim 6, characterized in that: It also includes a locking nut (8), which is threadedly connected to the bracket rotation shaft (1). The locking nut (8) is located on the upper side of the upper pressure plate (4) and moves toward the lower base (5) by rotating and pressing the upper pressure plate (4).

8. The shot blasting rack according to claim 7, characterized in that: It also includes a spring (9), which is installed between the upper pressure plate (4) and the fixed chuck (2) close to the upper pressure plate (4), and the spring (9) is used to support the upper pressure plate (4) to bounce up and away from the lower base (5).

9. The shot blasting rack according to claim 1, characterized in that: The presser (3) is also provided with a protective cover (30).

10. A method for assembling a torsion beam shot blasting rack, characterized in that: include: Determine the product hole: install the rubber plug into the product hole according to whether the torsion beam product (100) has a product hole; Vertical clamping: the torsion beam product (100) is placed in a vertical position into the rotating shaft (1) of the rack and aligned with the fixed clamping plate (2); Lower end clamping: operating the clamping device (3) of the lower base (5) to clamp the lower end of the torsion beam product (100); Axial compression: the locking nut (8) on the rotating shaft (1) of the rotating bracket is rotated to press the upper pressure plate (4) and its rubber pad (7) downward, thereby axially compressing and sealing the torsion beam product (100); Upper end clamping: operating the clamping device (3) of the upper clamping plate (4) to clamp the top of the torsion beam product (100), thereby completing the assembly of the torsion beam product (100) on the shot blasting rack.

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