Shot blast processing of engine casting body transfer guide

Abstract

The utility model belongs to sand blasting processing technical field especially, and a kind of sand blasting processing moving guide frame of engine casting body is provided, and the following scheme is presented, including base, further including the casting sand blasting box of being fixed in the top end of base, the top end of base is rotatably connected with the rotary table extending to the inner chamber of casting sand blasting box.The utility model is positioned mechanism by being set, can be in the hollow state of engine casting sleeve joint in the outside of vertical rod, through the positioning rod of vertical rod outside inclined rotatable connection to engine casting is supported, in driving motor drives rotary table rotation, make the vertical rod of sleeve joint with engine casting enter the inside of casting sand blasting box, the rotary rotary table synchronously drives the gear of the axle rod fixed in rotary table bottom and the rack fixed in the inner chamber of base contact, to drive engine casting overall rotation, increase the processing area of engine casting, reach the purpose of automatic rotation and fast positioning to engine casting.

Description

Technical fields:

[0001] This utility model relates to the field of sandblasting technology, and in particular to a sandblasting guide frame for engine castings. Background technology:

[0002] Sandblasting is a process that uses the impact of high-speed flowing sand to clean and roughen the surface of a workpiece. In order to move the engine casting to be sandblasted into the sandblasting machine for processing, a corresponding engine sandblasting guide frame needs to be designed to cooperate with the operation of the sandblasting machine.

[0003] In the prior art, when sandblasting engine castings, it is necessary to position the engine castings and drive the positioned engine castings to rotate by a drive motor in order to increase the area of ​​the engine castings to be sandblasted. Based on this, this utility model proposes a sandblasting guide frame for engine castings. Utility Model Content:

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a sandblasting guide for engine castings, thereby resolving the problems mentioned above.

[0005] A sandblasting guide frame for an engine casting includes a base and a casting sandblasting box fixed to the top of the base. The top of the base is rotatably connected to a turntable extending into the inner cavity of the casting sandblasting box. The frame also includes a positioning mechanism disposed on the turntable and the base for positioning the workpiece.

[0006] The positioning mechanism includes a transmission unit and a positioning unit. The transmission unit provides power for the overall rotation of the positioning unit, and the positioning unit is used for rapid positioning of the workpiece.

[0007] By adopting the above technical solution, castings can be quickly positioned and provided with rotational power.

[0008] The positioning unit includes a rotating wheel, a vertical rod, a positioning rod, a movable rod, a movable seat, a pull rod, and a spring. The rotating wheel is rotatably connected to the inner edge cavity of the turntable via a support plate fixed to the bottom of the turntable. A vertical rod is fixed to the top of the rotating wheel. Three positioning rods are rotatably connected to the outer wall of the vertical rod in a uniform circumferential direction. The positioning rods are used to provide positioning for the fitting of the workpiece.

[0009] The movable rod is vertically slidably installed in the inner cavity of the upright and extends to the outside of the top of the upright. The movable rod is used to drive the movable seat fixed at the bottom to move synchronously. The movable seat is used to pull the end of the positioning rod away from the upright towards the upright through a pull rod rotatably connected to the outer wall. The two ends of the pull rod are respectively rotatably connected to the outer wall of the movable seat and the outer wall of the positioning rod. The two ends of the spring are respectively engaged with the inner wall of the upright and the bottom of the movable seat. The spring is used to provide an upward thrust for the movable seat after it has moved.

[0010] By adopting the above technical solution, the casting can be quickly positioned, and the positioning of the casting can be quickly released by pressing the movable rod.

[0011] The transmission unit includes a gear and a rack. The gear is fixed to the outer wall of the bottom shaft of the rotating wheel and is used to rotate by receiving relative extrusion thrust from the rack. The rack is fixed to the inner cavity of the base and meshes with the outer wall of the gear.

[0012] By adopting the above technical solution, power can be provided for the rotation of the castings when they are being transported after positioning.

[0013] The number of uprights and rollers is set to multiple, and the multiple rollers and uprights are evenly distributed in the inner cavity of the edge groove of the turntable.

[0014] By adopting the above technical solution, multiple castings can be positioned, fed, and unloaded simultaneously.

[0015] The inner cavity of the upright is formed with a sliding groove for vertical movement of the protrusion on the outer wall of the movable seat, and the end of the positioning rod away from the upright is formed with a rubber pad to increase friction.

[0016] By adopting the above technical solution, positioning force is further provided for the sleeve installation of castings.

[0017] The beneficial effects of this utility model on the sandblasting process guide frame for engine castings are:

[0018] By setting up a positioning mechanism, a hollow engine casting can be fitted onto the outside of a vertical post. The positioning rod connected to the outside of the vertical post by tilting and rotating supports the engine casting. When the drive motor drives the turntable to rotate, the vertical post with the engine casting fitted onto it enters the interior of the casting sandblasting box. The rotating turntable synchronously drives the gear fixed on the bottom shaft of the rotating wheel to contact the rack fixed in the inner cavity of the base, thereby driving the engine casting to rotate as a whole, increasing the processing area of ​​the engine casting, and achieving the purpose of automatic rotation and rapid positioning of the engine casting. Attached image description:

[0019] Figure 1This is a schematic diagram of the overall structure of the sandblasting guide frame for the engine casting body proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the positioning mechanism of the sandblasting guide frame for the engine casting body proposed in this utility model;

[0021] Figure 3 This is a partial enlarged view of point A of the sandblasting guide frame for the engine casting body proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Casting sandblasting box; 3. Turntable; 4. Positioning mechanism; 401. Rotary wheel; 402. Upright pole; 403. Positioning rod; 404. Movable rod; 405. Movable seat; 406. Pull rod; 407. Spring; 408. Gear; 409. Rack; 5. Support plate. Detailed implementation method:

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0024] Reference Figures 1 to 3 A sandblasting guide frame for an engine casting body includes a base 1, a casting sandblasting box 2 fixed to the top of the base 1, a turntable 3 extending into the inner cavity of the casting sandblasting box 2 rotatably connected to the top of the base 1, and a positioning mechanism 4 disposed on the turntable 3 and the base 1 for positioning the workpiece.

[0025] Positioning mechanism 4 includes a transmission unit and a positioning unit. The transmission unit provides power for the overall rotation of the positioning unit, and the positioning unit is used for rapid positioning of the workpiece.

[0026] The positioning unit includes a rotating wheel 401, a vertical rod 402, a positioning rod 403, a movable rod 404, a movable seat 405, a pull rod 406, and a spring 407. The rotating wheel 401 is rotatably connected to the inner edge of the turntable 3 via a support plate 5 fixed to the bottom of the turntable 3. The top of the rotating wheel 401 is fixed with a vertical rod 402. Three positioning rods 403 are rotatably connected to the outer wall of the vertical rod 402 in a circumferential manner. The positioning rods 403 are used to provide positioning for the sleeve of the processed parts.

[0027] The movable rod 404 is vertically slidably installed in the inner cavity of the upright rod 402 and extends to the outside of the top of the upright rod 402. The movable rod 404 is used to drive the movable seat 405 fixed at the bottom to move synchronously. The movable seat 405 is used to pull the end of the positioning rod 403 away from the upright rod 402 close to the upright rod 402 through the pull rod 406 rotatably connected to the outer wall. The two ends of the pull rod 406 are respectively rotatably connected to the outer wall of the movable seat 405 and the outer wall of the positioning rod 403. The two ends of the spring 407 are respectively clamped to the inner wall of the upright rod 402 and the bottom of the movable seat 405. The spring 407 is used to provide an upward thrust for the movable seat 405 after it has moved.

[0028] The transmission unit includes a gear 408 and a rack 409. The gear 408 is fixed to the outer wall of the bottom shaft of the rotating wheel 401. The gear 408 is used to rotate by receiving the relative squeezing thrust from the rack 409. The rack 409 is fixed to the inner cavity of the base 1 and meshes with the outer wall of the gear 408.

[0029] In this embodiment: by attaching the hollow sleeve to the outside of the upright 402, the inner cavity of the casting body first contacts the inclined force-bearing surface of the positioning rod 403, causing the pull rod 406 rotatably connected to the outer wall of the positioning rod 403 to be subjected to the squeezing force from the positioning rod 403, which pushes the movable seat 405 rotatably connected to the other end to move downward. The movable seat 405 simultaneously drives the movable rod 404 to move downward and applies squeezing force to the spring 407. The three positioning rods 403 move synchronously until the end of the positioning rod 403 away from the upright 402 contacts the inner cavity of the casting body. The installation of the casting body is further positioned by the rubber pad fixed on the end of the positioning rod 403 away from the outer wall of the upright 402, thus achieving the purpose of quickly positioning the casting body.

[0030] Afterwards, the drive motor connected to the axis of the turntable 3 can be started, and the turntable 3 rotates to make the fixed casting body rotate into the inner cavity of the casting sandblasting box 2. The casting sandblasting box 2 works synchronously to perform sandblasting operation on the casting body (it should be noted that the casting sandblasting box 2 is a common turntable sandblasting box on the market. The sandblasting working principle of the casting sandblasting box 2 is existing technology, and it will not be elaborated on here).

[0031] During the rotation of turntable 3, the gear 408 fixed to the outer wall of the bottom shaft of turntable 401 will also move relative to rack 409, causing gear 408 to rotate due to the thrust from rack 409. The rotating gear 408 synchronously drives the upright 402, turntable 401, and casting body to rotate, so that the casting body rotates while being sandblasted, increasing the processing area of ​​the casting body, reducing the number of drive units that drive the casting body to rotate, and further reducing costs.

[0032] Please refer to this carefully. Figures 1 to 3There are multiple uprights 402 and rotating wheels 401. Multiple rotating wheels 401 and uprights 402 are evenly distributed in the inner cavity of the edge groove of the turntable 3. The inner cavity of the upright 402 is formed with a sliding groove for the vertical movement of the protrusion of the outer wall of the movable seat 405. The end of the positioning rod 403 away from the upright 402 is formed with a rubber pad to increase friction.

[0033] In this embodiment: With this structure, after the positioning rod 403 is subjected to external extrusion, the positioning rod 403 will give the pull rod 406 an extrusion thrust, so that the protruding part of the outer wall of the movable seat 405 moves vertically along the inner cavity of the vertical groove of the upright rod 402, providing guidance for the vertical movement of the movable seat 405.

[0034] Working principle: By fitting the hollow sleeve onto the outside of the upright 402, the inner cavity of the casting first contacts the inclined force-bearing surface of the positioning rod 403. This causes the pull rod 406, rotatably connected to the outer wall of the positioning rod 403, to be subjected to the compressive force from the positioning rod 403, pushing the movable seat 405, rotatably connected to the other end, to move downwards. The movable seat 405 simultaneously drives the movable rod 404 to move downwards and applies compressive force to the spring 407. The three positioning rods 403 move synchronously until the end of the positioning rod 403 away from the upright 402 contacts the inner cavity of the casting. The rubber pad fixed on the end of the positioning rod 403 away from the outer wall of the upright 402 further positions the casting, achieving rapid positioning of the casting. The purpose of positioning is to start the drive motor connected to the axis of the turntable 3, which drives the upright 402 and the rotating wheel 401, which are fitted with the casting body, to gradually enter the inner cavity of the casting sandblasting box 2. Sandblasting is performed on the casting body on the rotating wheel 401 and the upright 402. During the rotation of the turntable 3, the gear 408 fixed on the outer wall of the bottom shaft of the rotating wheel 401 will also move relative to the rack 409, so that the gear 408 is rotated by the thrust from the rack 409. The rotating gear 408 synchronously drives the upright 402, the rotating wheel 401, and the casting body to rotate, so that the casting body rotates while being sandblasted, increasing the processing area of ​​the casting body, reducing the number of drive units that drive the casting body to rotate, and further reducing costs.

[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A sandblasting guide frame for an engine casting, comprising a base (1), characterized in that: It also includes a casting sandblasting box (2) fixed to the top of the base (1), and a turntable (3) extending into the inner cavity of the casting sandblasting box (2) is rotatably connected to the top of the base (1). It also includes a positioning mechanism (4) set on the turntable (3) and the base (1) for positioning the workpiece. The positioning mechanism (4) includes a transmission unit and a positioning unit. The transmission unit is used to provide power for the overall rotation of the positioning unit, and the positioning unit is used to quickly position the workpiece. The positioning unit includes a rotating wheel (401), a vertical rod (402), a positioning rod (403), a movable rod (404), a movable seat (405), a pull rod (406), and a spring (407). The rotating wheel (401) is rotatably connected to the inner edge of the turntable (3) via a support plate (5) fixed to the bottom of the turntable (3). The top of the rotating wheel (401) is fixed with a vertical rod (402). Three positioning rods (403) are rotatably connected to the outer wall of the vertical rod (402) in a uniform circumferential direction. The positioning rods (403) are used to provide positioning for the sleeve of the workpiece. The movable rod (404) is vertically slidably installed in the inner cavity of the upright rod (402) and extends to the outside of the top of the upright rod (402). The movable rod (404) is used to drive the movable seat (405) fixed at the bottom to move synchronously. The movable seat (405) is used to pull the end of the positioning rod (403) away from the upright rod (402) and close to the upright rod (402) through the pull rod (406) rotatably connected to the outer wall. The two ends of the pull rod (406) are respectively rotatably connected to the outer wall of the movable seat (405) and the outer wall of the positioning rod (403). The two ends of the spring (407) are respectively clamped to the inner wall of the upright rod (402) and the bottom of the movable seat (405). The spring (407) is used to provide an upward thrust for the movable seat (405) after it has moved. The transmission unit includes a gear (408) and a rack (409). The gear (408) is fixed to the outer wall of the bottom shaft of the rotating wheel (401). The gear (408) is used to rotate by receiving the relative squeezing thrust from the rack (409). The rack (409) is fixed to the inner cavity of the base (1). The rack (409) meshes with the outer wall of the gear (408).

2. The sandblasting guide frame for the engine casting body according to claim 1, characterized in that: The number of the uprights (402) and the rotating wheels (401) is set to multiple, and the multiple rotating wheels (401) and uprights (402) are evenly distributed in the inner cavity of the edge groove of the turntable (3).

3. The sandblasting guide frame for engine castings according to claim 2, characterized in that: The inner cavity of the upright (402) is formed with a sliding groove for vertical movement of the protrusion on the outer wall of the movable seat (405), and the end of the positioning rod (403) away from the upright (402) is formed with a rubber pad to increase friction.

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