Casting fixing clamp for shot blasting machine

Abstract

The casting fixing clamp for the shot blasting machine comprises a base, a working groove is formed in the top of the base, a driving disc is rotationally connected to the bottom of the working groove, a power assembly used for providing power is arranged on the outer side wall of the driving disc, a guide rail is machined on the top of the driving disc, and the top of the driving disc is connected with a plurality of sliding blocks in a sliding mode. The tops of the sliding blocks are fixedly connected with clamping rods used for clamping a casting, a limiting disc is arranged at the position of an opening of the working groove, and a guide groove used for guiding the sliding blocks is formed in the outer side wall of the limiting disc. The utility model relates to the technical field of shot blasting machines. According to the casting fixing clamp for the shot blasting machine, through cooperation of the power assembly and the driving disc, a casting can be jacked up after being clamped, the fixing clamp is easier and more convenient to use, meanwhile, the to-be-treated surface of the casting is not blocked, the surface treatment consistency of the casting is improved, and therefore the quality of the casting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, in particular to a casting fixing fixture for shot blasting machines. Background Art

[0002] Shot blasting machines are foundry equipment that uses high-speed projectiles to treat or strengthen the surface of castings. Almost all steel castings, gray castings, malleable cast iron parts, and ductile iron castings are subject to shot blasting. Shot blasting machines are used to remove burrs, diaphragms, and rust. They can also remove surface contaminants from a partially coated surface and provide a surface profile that enhances coating adhesion, thereby strengthening the workpiece.

[0003] In the prior art, when a shot blasting machine performs surface treatment on a workpiece, the workpiece is usually hung up first to reduce the surface area of the workpiece that is blocked during surface treatment. The hook used to hang the workpiece will also block the surface of the workpiece to a certain extent, resulting in poor surface treatment effect in the area of the workpiece covered by the hook, affecting the consistency of the surface treatment of the workpiece. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a casting fixing fixture for a shot blasting machine, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A casting fixing fixture for a shot blasting machine comprises a base, a working groove is formed on the top of the base, a driving disc is rotatably connected to the bottom of the working groove, a power assembly for providing power is provided on the outer wall of the driving disc, a guide rail is processed on the top of the driving disc, and a plurality of sliders are slidably connected thereto, a clamping rod for clamping the casting is fixedly connected to the top of each of the sliders, a limit plate is provided at the opening of the working groove, and a guide groove for guiding the slider is formed on the outer wall of the limit plate;

[0007] The guide rail extends with the curvature of an Archimedean spiral and is spirally arranged on the top of the driving disk. The bottom of the sliding block is provided with a sliding groove which is slidably connected with the guide rail.

[0008] Furthermore, the power assembly includes a motor, a driving gear and a driven gear. The motor is embedded in the base, the output shaft of the motor is fixedly connected to the driving gear, one side of the driving gear is engaged with the driven gear, and a circular hole is opened in the middle of the driven gear, and is sleeved on the outer peripheral side of the drive disk.

[0009] Furthermore, the inner side wall of the circular hole is provided with at least two groups of circular grooves in an annular array, wherein balls are connected to the circular grooves via springs, and the outer side wall of the driving disk is provided with a track groove for the balls to roll;

[0010] A positioning groove for clamping the ball is provided in the middle of the track groove. Both sides of the track groove located on the positioning groove extend obliquely downward and gradually reduce the groove depth.

[0011] Furthermore, the outer wall of the slider in contact with the guide groove is provided with a first limiting groove from top to bottom, and the guide groove is provided with a second limiting groove in a horizontal direction near the inner wall of the slider, and a guide block is slidably connected between the first limiting groove and the second limiting groove.

[0012] Furthermore, a plurality of limit blocks are provided in a circular array at the bottom of the outer wall of the limit plate, and the limit blocks are avoided in the guide groove. The inner wall of the working groove is located at a concave part of the limit plate to form a circular groove, and the inner bottom wall of the circular groove is downwardly provided with a clamping groove for clamping the limit block.

[0013] Furthermore, the horizontal height difference between the positioning groove of the track groove and the end of the track groove is A1, the horizontal height difference between the top of the guide rail and the bottom of the limiting plate is A2, the distance that the limiting block moves from the top to the bottom of the first limiting groove is A3, and the groove depth of the clamping groove is A4;

[0014] A1 is smaller than A2;

[0015] A3 plus A4 equals A1.

[0016] Furthermore, the outer wall of the clamping rod is provided with a friction sleeve in contact with the casting, and the length of the friction sleeve is smaller than the length of the clamping rod, so that a gap is left between the bottom of the friction sleeve and the limiting plate.

[0017] In summary, the present invention has at least one of the following beneficial technical effects:

[0018] 1. This casting fixing fixture for a shot blasting machine can lift the casting after clamping it through the cooperation of the power assembly and the drive disk, making the use of the fixing fixture simpler and more convenient. At the same time, the surface to be treated of the casting is not blocked, thereby improving the surface treatment consistency of the casting, thereby improving the quality of the casting and making the fixing fixture more practical.

[0019] 2. This kind of casting fixing fixture for shot blasting machine has an annular groove opened at a place of the limit plate in the working groove, and a clamping groove is set in the annular groove, so that the clamping groove and the annular groove cooperate with the limit block on the outer peripheral side of the limit plate. Before the fixing fixture clamps the casting, the limit plate cannot rotate, so that the clamping rod can better clamp the casting, and after the casting is clamped, the limit plate can be rotated, so that the power component controls the rotation of the casting, and the surface treatment efficiency of the casting is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The utility model is a structural schematic diagram of a casting fixing fixture for a shot blasting machine.

[0022] Figure 2 The utility model is a schematic diagram of the internal structure of a casting fixing fixture for a shot blasting machine.

[0023] Figure 3 The utility model is a top view of a driven gear and a driving disc in a casting fixing fixture for a shot blasting machine.

[0024] Figure 4 The utility model is a schematic diagram of the internal structure of a driven gear in a casting fixing fixture for a shot blasting machine.

[0025] Figure 5 The utility model is a structural schematic diagram of a driving disk in a casting fixing fixture for a shot blasting machine.

[0026] Figure 6 The utility model is a structural schematic diagram of a limit plate and a slider in a casting fixing fixture for a shot blasting machine.

[0027] Figure 7 This is a schematic diagram of the heights of A1, A2, A3 and A4 in a casting fixing fixture for a shot blasting machine according to the present invention.

[0028] Figure 8 The utility model is a structural schematic diagram of a limit plate in a casting fixing fixture for a shot blasting machine.

[0029] Figure 9 The utility model is a structural schematic diagram of a casting fixing fixture for a shot blasting machine when clamping a casting.

[0030] Figure 10 for Figure 9Schematic diagram of the internal state.

[0031] Figure 11 The utility model is a structural schematic diagram of a casting fixing fixture for a shot blasting machine when supporting a casting.

[0032] Figure 12 for Figure 11 Schematic diagram of the internal state.

[0033] In the figure, 1. base; 2. working groove; 3. driving plate; 4. power assembly; 41. motor; 42. driving gear; 43. driven gear; 5. guide rail; 6. slider; 7. clamping rod; 8. limit plate; 9. guide groove; 10. round hole; 11. round groove; 12. ball bearing; 13. track groove; 14. positioning groove; 15. first limit groove; 16. second limit groove; 17. guide block; 18. limit block; 19. annular groove; 20. clamping groove; 21. friction sleeve. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings.

[0035] Example:

[0036] Reference Figure 1 - Figure 12 The utility model discloses a casting fixing fixture for a shot blasting machine, comprising a base 1, a working groove 2 is provided on the top of the base 1, a driving disk 3 is rotatably connected to the bottom of the working groove 2, a power assembly 4 for providing power is provided on the outer wall of the driving disk 3, a guide rail 5 is processed on the top of the driving disk 3, and a plurality of sliders 6 are slidably connected thereto, the tops of the sliders 6 are all fixedly connected with clamping rods 7 for clamping the casting, a limit plate 8 is provided at the opening of the working groove 2, and a guide groove 9 is provided on the outer wall of the limit plate 8 for guiding the sliders 6;

[0037] The guide rail 5 extends in the curvature of an Archimedean spiral and is spirally arranged on the top of the driving disk 3 . A sliding groove is provided at the bottom of the slider 6 , which is slidably connected to the guide rail 5 .

[0038] In this embodiment, since the shot blasting machine needs to lift the casting when treating the surface of the casting in order to increase the effective treatment area of the sand blasting machine, the hook used to lift the casting will cause the area of the casting close to the hook to be blocked by the hook, affecting the treatment of the shot blasting machine and affecting the consistency of the surface treatment of the casting.

[0039] Therefore, observe Figure 1 and Figure 2It can be found that a working groove 2 is opened at the top of the base 1, and then a driving disk 3 is connected in the working groove 2, so that when the driving disk 3 rotates, it drives the guide rail 5 on the top of the driving disk 3 to rotate, and the guide rail 5 extending in the curvature of an Archimedean spiral and spirally arranged on the top of the driving disk 3 pushes the slider 6 to synchronously approach the center of the driving disk 3 or move away from the center of the driving disk 3, so that the clamping rods 7 on the top of the multiple sliders 6 can synchronously clamp the casting or synchronously support the casting, so that when the outer surface of the casting needs to be processed, the clamping rod 7 is used to support the inner wall of the casting to avoid the outer surface being blocked during the processing, thereby improving the processing effect of the outer surface; and when processing the inner surface, the clamping rod 7 can be used to clamp the outer surface of the casting, so that the inner surface will not be blocked during processing, which can effectively improve the processing effect of the casting, thereby improving the practicality of the fixing fixture.

[0040] Since the slider 6 will slide on the top of the driving disk 3 when pushed by the guide rail 5, and the sliding friction is large, the slider 6 will be restricted by the friction and rotate with the driving disk 3, resulting in a poor directional movement effect of the slider 6. Therefore, a limit plate 8 is connected to the opening of the working groove 2, and a guide groove 9 for guiding the movement of the slider 6 is opened on the outer wall of the limit plate 8, so that the slider 6 can only move along the direction of the guide groove 9 when pushed by the guide rail 5, so that the clamping rod 7 can stably clamp the casting or support the casting, making the operation of the fixing fixture more stable.

[0041] The power assembly 4 can quickly drive the driving disc 3 to rotate, so that the fixing fixture can clamp the casting faster and achieve better clamping effect.

[0042] In a further preferred embodiment of the present invention, Figure 2 As shown, the power assembly 4 includes a motor 41, a driving gear 42 and a driven gear 43. The motor 41 is embedded in the base 1. The output shaft of the motor 41 is fixedly connected to the driving gear 42. One side of the driving gear 42 is engaged with the driven gear 43. A circular hole 10 is opened in the middle of the driven gear 43 and is sleeved on the outer peripheral side of the drive disk 3.

[0043] In this embodiment, the motor 41 is provided to drive the driving gear 42 to rotate, and the driving gear 42 is used to transmit the power to the driven gear 43, and the driven gear 43 rotates with the driving disk 3, so that the guide rail 5 can quickly push multiple sliders 6 to move closer or farther away synchronously, which can effectively improve the clamping efficiency of the fixing fixture.

[0044] In a further preferred embodiment of the present invention, Figure 3 - Figure 12As shown, the inner wall of the circular hole 10 is provided with at least two groups of circular grooves 11 in an annular array, and balls 12 are connected to the circular grooves 11 through springs. The outer wall of the driving disk 3 is provided with a track groove 13 for the balls 12 to roll.

[0045] A positioning groove 14 for clamping the ball 12 is formed in the middle of the track groove 13. Both sides of the track groove 13 located on the positioning groove 14 extend obliquely downward and gradually reduce the groove depth.

[0046] A first limiting groove 15 is provided on the outer side wall where the slider 6 contacts the guide groove 9 from top to bottom, and a second limiting groove 16 is provided on the inner side wall of the guide groove 9 close to the slider 6 in a horizontal direction, and a guide block 17 is slidably connected between the first limiting groove 15 and the second limiting groove 16.

[0047] In this embodiment, since the casting needs to be lifted during surface treatment and the casting is suspended to avoid the bottom of the component being blocked and affecting the surface treatment effect, when using the fixing clamp, the casting needs to be lifted until the power component 4 drives the clamping rod to clamp the casting, which increases the physical exertion of the operator.

[0048] Therefore, observe Figure 3 - Figure 5 It can be found that a circular groove 11 is opened on the inner wall of the circular hole 10, and then a ball 12 is connected to the circular groove 11 through a spring. At the same time, a track groove 13 is opened on the outer wall of the driving disk 3 that contacts the inner wall of the circular hole 10, and a positioning groove 14 is opened in the middle of the track groove 13 to engage with the ball 12. The track groove 13 is located on both sides of the positioning groove 14. Figure 3 and Figure 5 When the spring is pressed against the drive plate 3, the drive plate 3 is pressed against the drive plate 3, and the drive plate 3 is pressed against the drive plate 3, so that the drive plate 3 is pressed against the drive plate 3, and the drive plate 3 is pressed against the drive plate 3.

[0049] Since the slider 6 needs to slide in the horizontal direction in the guide groove 9 of the limit plate 8, and also needs to slide in the vertical direction in the guide groove 9 when it is lifted by the driving plate 3, in order to make the sliding of the slider 6 stable and not fall in the guide groove 9, the slider 6 and the guide groove 9 are as shown in FIG. Figure 6 As shown, a first limiting groove 15 is opened on the side wall of the slider 6, and then a second limiting groove 16 is opened in the guide groove 9, and a guide block 17 is provided in the overlapping area of the first limiting groove 15 and the second limiting groove 16. When the slider 6 is pushed by the guide rail 5 to move in the horizontal direction, it will be assisted by the second limiting groove 16, making the horizontal movement more stable. When it is lifted by the driving disk 3 and moves in the vertical direction, it will be assisted by the first limiting groove 15, making the vertical movement more stable, which can prevent the slider 6 from tipping over and affecting the stability of the fixing clamp.

[0050] When the inner surface of the casting needs to be processed, the slider 6 is first moved to the edge of the drive disk 3, and then the casting is placed in the middle of the limit disk 8. Then, the slider 6 is controlled by the power assembly 4 to slide inward so that the clamping rod 7 on the slider 6 clamps the casting. After clamping the casting, due to the increase in the torque between the driven gear 43 and the drive disk 3, the ball 12 rolls along the track groove 13, and while rolling, the drive disk 3, the slider 6 and the clamping rod 7 are lifted up, so that the casting is as shown in FIG. Figure 9 and Figure 10 As shown, the casting is supported, at which point the casting is suspended and there is no obstruction to the inner surface of the casting.

[0051] When the outer surface of the casting needs to be processed, only Figure 11 and Figure 12 As shown, the slider 6 is first moved to the center of the driving disk 3, and then the slider 6 is gradually moved away so that the clamping rod 7 can support the inner wall of the casting, and after supporting the inner wall of the casting, the casting is lifted up.

[0052] Therefore, through the above arrangement, the casting can be placed directly on the base 1 when clamping, and the casting can be automatically lifted after clamping, making the clamping of the casting easier and more convenient.

[0053] In a further preferred embodiment of the present invention, Figure 7 - Figure 12 As shown, a plurality of limit blocks 18 are provided in an annular array at the bottom of the outer wall of the limit plate 8. The limit blocks 18 are avoided in the guide groove 9. The inner wall of the working groove 2 is located at a concave part of the limit plate 8 to form a circular groove 19. The inner bottom wall of the circular groove 19 is downwardly provided with a clamping groove 20 for clamping the limit blocks 18.

[0054] The horizontal height difference between the positioning groove 14 of the track groove 13 and the end of the track groove 13 is A1, the horizontal height difference between the top of the guide rail 5 and the bottom of the limiting plate 8 is A2, the distance that the limiting block 18 moves from the top to the bottom of the first limiting groove 15 is A3, and the groove depth of the locking groove 20 is A4;

[0055] A1 is smaller than A2;

[0056] A3 plus A4 equals A1.

[0057] In this embodiment, since the surface treatment of the casting is performed by the shot blasting machine, it is necessary to move the nozzle of the shot blasting machine or rotate the casting to change the treatment area, it is necessary to frequently adjust the position of the shot blasting machine nozzle or the casting, making the surface treatment of the casting extremely troublesome.

[0058] Therefore, observe Figure 7 and Figure 8 8, so that the limit plate 8 can be rotated in the working groove 2, so that the casting is completely lifted and slowly rotated by the power assembly 4, so that the shot blasting machine can better process the surface of the component and improve the surface treatment efficiency of the casting.

[0059] In a further preferred embodiment of the present invention, Figure 10 As shown, the outer wall of the clamping rod 7 is provided with a friction sleeve 21 in contact with the casting. The length of the friction sleeve 21 is smaller than the length of the clamping rod 7, so that a gap is left between the bottom of the friction sleeve 21 and the limit plate 8.

[0060] In this embodiment, a friction sleeve 21 is provided on the outer wall of the clamping rod 7, and the friction sleeve 21 can be used to contact the surface of the casting to clamp the casting, so that the static friction force of the casting after being clamped is greater, thereby improving the clamping stability of the casting.

[0061] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A casting fixing fixture for a shot blasting machine, comprising a base (1), characterized in that: A working groove (2) is provided on the top of the base (1), a driving disc (3) is rotatably connected to the bottom of the working groove (2), a power assembly (4) for providing power is provided on the outer wall of the driving disc (3), a guide rail (5) is processed on the top of the driving disc (3), and a plurality of sliders (6) are slidably connected thereto, the tops of the sliders (6) are fixedly connected to clamping rods (7) for clamping castings, a limiting disc (8) is provided at the opening of the working groove (2), and a guide groove (9) for guiding the sliders (6) is provided on the outer wall of the limiting disc (8); The guide rail (5) extends with an Archimedean spiral curvature and is spirally arranged on the top of the driving disk (3); the bottom of the slider (6) is provided with a sliding groove that is slidably connected to the guide rail (5).

2. A casting fixing fixture for a shot blasting machine according to claim 1, characterized in that: The power assembly (4) comprises a motor (41), a driving gear (42) and a driven gear (43); the motor (41) is embedded in the base (1); the output shaft of the motor (41) is fixedly connected to the driving gear (42); one side of the driving gear (42) is meshed with the driven gear (43); a circular hole (10) is opened in the middle of the driven gear (43) and is sleeved on the outer circumference of the driving disc (3).

3. A casting fixing fixture for a shot blasting machine according to claim 2, characterized in that: The inner wall of the circular hole (10) is provided with at least two groups of circular grooves (11) in an annular array, wherein balls (12) are connected to the circular grooves (11) via springs, and the outer wall of the driving disk (3) is provided with track grooves (13) for the balls (12) to roll. A positioning groove (14) for clamping the ball (12) is provided in the middle of the track groove (13). Both sides of the track groove (13) located on the positioning groove (14) extend obliquely downward and gradually reduce the groove depth.

4. A casting fixing fixture for a shot blasting machine according to claim 3, characterized in that: The outer side wall of the slider (6) in contact with the guide groove (9) is provided with a first limiting groove (15) from top to bottom, and the inner side wall of the guide groove (9) close to the slider (6) is provided with a second limiting groove (16) in a horizontal direction, and a guide block (17) is slidably connected between the first limiting groove (15) and the second limiting groove (16).

5. A casting fixing fixture for a shot blasting machine according to claim 4, characterized in that: A plurality of limit blocks (18) are provided in a circular array at the bottom of the outer wall of the limit plate (8), and the limit blocks (18) are avoided in the guide groove (9). The inner wall of the working groove (2) is located at a concave part of the limit plate (8) to form a circular groove (19), and the inner bottom wall of the circular groove (19) is downwardly provided with a clamping groove (20) for clamping the limit block (18).

6. A casting fixing fixture for a shot blasting machine according to claim 5, characterized in that: The horizontal height difference between the positioning groove (14) of the track groove (13) and the end of the track groove (13) is A1, the horizontal height difference between the top of the guide rail (5) and the bottom of the limiting plate (8) is A2, the distance that the limiting block (18) moves from the top to the bottom of the first limiting groove (15) is A3, and the groove depth of the clamping groove (20) is A4; A1 is smaller than A2; A3 plus A4 equals A1.

7. The casting fixing fixture for a shot blasting machine according to claim 1, characterized in that: The outer wall of the clamping rod (7) is provided with a friction sleeve (21) in contact with the casting, and the length of the friction sleeve (21) is smaller than the length of the clamping rod (7), so that a gap is left between the bottom of the friction sleeve (21) and the limiting plate (8).

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