Metal casting surface treatment equipment

Abstract

The invention relates to the technical field of metal casting machining, in particular to metal casting surface treatment equipment which comprises a rack, a left three-axis moving platform and a right three-axis moving platform are mounted at the top of the rack, driving motors are mounted on moving platforms of the three-axis moving platforms, a rotating shaft I is connected to an output shaft of each driving motor, and a connecting disc is connected to the end of each rotating shaft I; a connecting block capable of reciprocating in the radial direction of the connecting disc is arranged on the connecting disc, a grinding piece is connected to the connecting block, and the grinding piece is provided with a horizontal section and an arc-shaped section. The horizontal area of the inner wall of the bent-pipe-shaped metal casting can be ground and polished through the horizontal sections on the grinding pieces, and the arc-shaped area of the inner wall of the bent-pipe-shaped metal casting can be ground and polished through the arc-shaped sections on the grinding pieces, so that the inner surface of the bent-pipe-shaped metal casting is comprehensively and effectively ground and polished; and the inner surface of the bent-pipe-shaped metal casting does not need to be manually ground and polished, so that time and labor can be saved, and the surface treatment efficiency of the bent-pipe-shaped metal casting is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting processing, in particular to a metal casting surface treatment device. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance.

[0003] After the production of metal castings is completed, the inner surface of the metal castings needs to be ground and polished. At present, although there are various grinding and polishing equipment on the market, the existing grinding and polishing equipment can generally only grind and polish the inner surface of metal castings with regular shapes. For curved tube-shaped metal castings, their inner cavity space is bent. Therefore, the existing grinding and polishing equipment for regular-shaped metal castings is difficult to effectively grind and polish the inner surface of the curved tube-shaped metal castings, so it is necessary to manually grind and polish the inner surface of the curved tube-shaped metal castings. The manual grinding and polishing method has high labor intensity and low efficiency. Summary of the invention

[0004] The object of the present invention is to provide a metal casting surface treatment device that can effectively grind and polish the inner surface of a curved tubular metal casting in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a metal casting surface treatment equipment, including a frame, two left and right three-axis mobile platforms are installed on the top of the frame, and a driving motor is installed on the mobile platform of the three-axis mobile platform. The output shaft of the driving motor is connected to a rotating shaft I, and the end of the rotating shaft I is connected to a connecting disk. The connecting disk is provided with a connecting block that can reciprocate along its radial direction. The connecting block is connected to a grinding sheet, and the grinding sheet has a horizontal section and an arc section. The side where the two grinding sheets are away from each other is the horizontal section, and the side where the two grinding sheets are close to each other is the arc section. The connecting disk is threaded with two upper and lower screws, and the connecting block is provided with a threaded hole that matches the screw. The frame is provided with a clamping and positioning mechanism for clamping and positioning the bent tubular metal casting.

[0006] As a further optimization scheme of the present invention, the clamping and positioning mechanism includes a mounting plate connected to the rear side of the top of the frame, the mounting plate is located between the two three-axis movable platforms, and a connecting plate is rotatably connected to the mounting plate via a rotating shaft II. The connecting plate is provided with an electric clamp for clamping and fixing the bent tubular metal casting.

[0007] As a further optimization scheme of the present invention, the electric clamp includes a fixed splint connected to the front side of the mounting plate, a movable splint I capable of moving up and down is provided on the mounting plate, the movable splint I is located on the upper side of the fixed splint, a linear motor I is installed on the mounting plate, a slider on the linear motor I is connected to the movable splint I to drive the movable splint I to move up and down, a movable splint II capable of moving left and right is provided on the mounting plate, the movable splint II is located on the right side of the fixed splint, a linear motor II is installed on the mounting plate, and a slider on the linear motor II is connected to the movable splint II to drive the movable splint II to move left and right.

[0008] As a further optimization scheme of the present invention, a locking mechanism for locking the connecting plate is provided on the mounting plate, and the locking mechanism includes an electric push rod installed on the rear side of the mounting plate, and an L-shaped plug rod that can move up and down is provided on the mounting plate, and the L-shaped plug rod is connected to the telescopic rod of the electric push rod, and arc-shaped plug blocks are connected on all four sides of the rear side surface of the connecting plate, and the L-shaped plug rod is inserted into the arc-shaped plug block to lock the connecting plate.

[0009] As a further optimization scheme of the present invention, a trigger mechanism is provided on the three-axis mobile platform on the left, and the trigger mechanism includes a connecting plate connected to the three-axis mobile platform on the left, a rack is connected to the connecting plate, and a gear is connected to the rotating shaft II through a one-way clutch, and the rack can engage with the gear by moving left and right.

[0010] As a further optimization scheme of the present invention, a suction mechanism for sucking out waste chips in the curved tubular metal casting is provided on the top of the frame. The suction mechanism includes a collection frame embedded on the top of the frame. The bottom of the collection frame is slidably connected to a suction pipe that can move up and down, and the top of the suction pipe is connected to a suction nozzle.

[0011] As a further optimization scheme of the present invention, the bottom of the collecting frame is tilted so as to be high in the middle and low outside, and discharge ports for discharging waste chips are provided on both left and right sides of the bottom of the collecting frame.

[0012] As a further optimization solution of the present invention, the diameter of the suction nozzle is smaller than the diameter of the curved tubular metal casting.

[0013] The beneficial effects of the present invention are: 1. The horizontal section on the grinding sheet can be used to grind and polish the horizontal area of ​​the inner wall of the curved tubular metal casting, and the arc section on the grinding sheet can be used to grind and polish the arc area of ​​the inner wall of the curved tubular metal casting, thereby achieving comprehensive and effective grinding and polishing of the inner surface of the curved tubular metal casting, without the need for manual grinding and polishing of the inner surface of the curved tubular metal casting, thereby saving time and effort, and improving the surface treatment efficiency of the curved tubular metal casting.

[0014] 2. The electric push rod can drive the L-shaped plug rod to be inserted into the arc-shaped plug block to lock the connecting plate to prevent the connecting plate from rotating when taking or placing the bent tubular metal casting or grinding and polishing the bent tubular metal casting, so as to facilitate the taking and placing of the bent tubular metal casting and avoid the rotation of the bent tubular metal casting during grinding and polishing, so as to improve the stability, accuracy and safety of grinding and polishing.

[0015] 3. Through the coordination of the rack, the one-way clutch and the gear, the shaft II can be driven to drive the connecting plate to rotate 90 degrees after the grinding sheet is removed from the bent tubular metal casting, so that the bent tubular metal casting is rotated 90 degrees to align the unpolished area inside it with the grinding sheet on the right, thereby reducing the number of times the connecting plate is manually rotated and adjusted, which can save time and effort.

[0016] 5. The waste chips adhering to the inner surface of the curved tubular metal casting can be sucked out through the suction nozzle to avoid the waste chips from accumulating inside the curved tubular metal casting, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from the front perspective.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from the rear side perspective.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping and positioning mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting block, the grinding sheet and the screws of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the electric clamp of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the locking mechanism and the triggering mechanism of the present invention.

[0023] Figure 7 It is a partial three-dimensional structural schematic diagram of the present invention.

[0024] Figure 8 It is a schematic diagram of the installation of the suction mechanism of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the suction mechanism of the present invention.

[0026] In the figure: 1-frame, 2-three-axis mobile platform, 4-drive motor, 5-rotating shaft I, 8-connecting plate, 9-connecting block, 10-grinding sheet, 11-screw, 121-mounting plate, 122-rotating shaft II, 123-connecting plate, 124-linear motor I, 125-fixed splint, 126-movable splint I, 127-movable splint II, 129-linear motor II, 131-L-shaped plug rod, 132-electric push rod, 133-arc plug block, 141-connecting plate, 142-rack, 143-one-way clutch, 144-gear, 151-collection frame, 152-suction straw, 153-suction nozzle, 154-discharging port. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] A metal casting surface treatment equipment, see Figure 1-Figure 5 , including a frame 1, two left and right three-axis mobile platforms 2 are installed on the top of the frame 1, and a driving motor 4 is installed on the mobile platform of the three-axis mobile platform 2. A rotating shaft Ⅰ5 is connected to the output shaft of the driving motor 4, and the ends of the two rotating shafts Ⅰ5 ​​close to each other are connected to a connecting plate 8, and the sides of the two connecting plates 8 close to each other are slidably connected to connecting blocks 9 that can move up and down through a slide groove, and the sides of the two connecting blocks 9 close to each other are connected to grinding plates 10. The three-axis mobile platform 2 can drive the driving motor 4 to move in three axes front, back, left, right, up and down, so that the grinding plate 10 can move in three axes front, back, left, right, up and down, and the grinding plate 10 has a horizontal section and an arc section. The side where the two grinding plates 10 are away from each other is the horizontal section, and the side where the two grinding plates 10 are close to each other is the arc section. The connecting plate 8 is threadedly connected with two upper and lower screws 11, and the connecting block 9 is provided with a threaded hole matching the screw 11. The frame 1 is provided with a clamping and positioning mechanism for clamping and positioning the bent tubular metal casting.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 5The clamping and positioning mechanism includes a mounting plate 121 connected to the rear side of the top of the frame 1, the mounting plate 121 is located between the two three-axis mobile platforms 2, the mounting plate 121 is rotatably connected to a connecting plate 123 through a rotating shaft II 122, and the connecting plate 123 is provided with an electric clamp for clamping and fixing the bent tubular metal casting, the electric clamp includes a fixed clamping plate 125 connected to the front side of the mounting plate 121, and the mounting plate 121 is slidably connected to a movable clamping plate I 126 that can move up and down through a sliding groove, and the movable clamping plate I 126 is located on the upper side of the fixed clamping plate 125, and a linear motor I 124 is installed on the mounting plate 121. The linear motor I 124 The slider on is connected with the movable splint Ⅰ126 to drive the movable splint Ⅰ126 to move up and down. The mounting plate 121 is slidably connected with a movable splint Ⅱ127 that can move left and right through a slide groove. The movable splint Ⅱ127 is located on the right side of the fixed splint 125. A linear motor Ⅱ129 is installed on the mounting plate 121. The slider on the linear motor Ⅱ129 is connected with the movable splint Ⅱ127 to drive the movable splint Ⅱ127 to move left and right. The clamping parts on the fixed splint 125, the movable splint Ⅰ126 and the movable splint Ⅱ127 are all arc-shaped, which can better adapt to the shape of the curved tubular metal casting and provide stable and uniform clamping force.

[0030] First, place the bent tubular metal casting on the fixed clamp 125, control the linear motor I124 to drive the movable clamp I126 to move downward and contact the bent tubular metal casting, and through the cooperation of the movable clamp I126 and the fixed clamp 125, the bent tubular metal casting can be clamped and fixed in the upper and lower directions, control the linear motor II129 to drive the movable clamp II127 to move left and contact the bent tubular metal casting, and through the cooperation of the movable clamp I126 and the fixed clamp 125, the bent tubular metal casting can be clamped and fixed in the left and right directions, so that the bent tubular metal casting can be firmly fixed on the fixed clamp 125 to prevent the displacement of the bent tubular metal casting from affecting the grinding and polishing work. The position of the connecting disk 8 can be adjusted up and down and front and back through the three-axis moving platform 2 so that the axis of the connecting disk 8 is aligned with the axis of the curved tubular metal casting, and the three-axis moving platform 2 can drive the grinding plate 10 to move back and forth left and right, the left grinding plate 10 moves to the right and extends into the curved tubular metal casting, and the left grinding plate 10 then fits with the area with a longer arc length on the inner wall of the curved tubular metal casting, and the left driving motor 4 can drive the left grinding plate 10 to rotate, so that the horizontal area of ​​the inner wall of the curved tubular metal casting is ground and polished by the horizontal section on the grinding plate 10, and the area with a longer arc length on the inner wall of the curved tubular metal casting is ground and polished by the arc section on the grinding plate 10. When the area with a longer arc length on the inner wall of the curved tubular metal casting is ground and polished and the left grinding sheet 10 is moved to the left out of the curved tubular metal casting, loosen the upper screw 11 on the left connecting plate 8 to release the lock on the left connecting block 9, then move the left connecting block 9 downward to drive the left grinding sheet 10 to move downward, and then tighten the lower screw 11 on the left connecting plate 8 to re-lock the left connecting block 9, and then move the left grinding sheet 10 into the curved tubular metal casting to fit with the area with a shorter arc length on the inner wall of the curved tubular metal casting, so as to grind and polish the area with a shorter arc length on the inner wall of the curved tubular metal casting. Then, the connecting plate 123 is rotated to rotate the curved tubular metal casting 90 degrees so that the unpolished area inside it is aligned with the polishing sheet 10 on the right. Similarly, the unpolished inner wall area of ​​the curved tubular metal casting can be polished by the polishing sheet 10 on the right. In this way, the equipment can polish the horizontal area of ​​the inner wall of the curved tubular metal casting by the horizontal section on the polishing sheet 10, and can polish the arc area of ​​the inner wall of the curved tubular metal casting by the arc section on the polishing sheet, thereby achieving comprehensive and effective polishing of the inner surface of the curved tubular metal casting, without the need for manual polishing of the inner surface of the curved tubular metal casting, thereby saving time and effort, and improving the surface treatment efficiency of the curved tubular metal casting.

[0031] See also Figure 6A locking mechanism for locking the connecting plate 123 is provided on the mounting plate 121, and the locking mechanism includes an electric push rod 132 installed on the rear side of the mounting plate 121, and the electric push rod 132 is located at the lower side of the rotating shaft II 122. An L-shaped plug rod 131 that can move up and down is slidably connected to the mounting plate 121 through a sliding groove, and the L-shaped plug rod 131 is located at the lower side of the electric push rod 132 and is connected to the telescopic rod of the electric push rod 132. Arc-shaped plug blocks 133 are connected to the four sides of the rear side of the connecting plate 123, and the L-shaped plug rod 131 is inserted into the arc-shaped plug block 133 to lock the connecting plate 123.

[0032] The L-shaped plug rod 131 inserted in the arc-shaped plug block 133 can lock the connecting plate 123 to prevent the connecting plate 123 from rotating when the bent tubular metal casting is taken in or polished, so as to facilitate the taking in of the bent tubular metal casting and prevent the bent tubular metal casting from rotating during polishing, so as to improve the stability, accuracy and safety of polishing; when the connecting plate 123 is to be rotated so that the bent tubular metal casting is rotated 90 degrees to align the unpolished area therein with the polishing sheet 10, the telescopic rod of the electric push rod 132 is controlled to extend to push the L-shaped plug rod 131 downward and out of the arc-shaped plug block 133 to release the lock on the connecting plate 123, and the telescopic rod of the electric push rod 132 is controlled to shorten to pull the L-shaped plug rod 131 upward, so that the L-shaped plug rod 131 is inserted into the arc-shaped plug block 133 to re-lock the connecting plate 123.

[0033] See also Figure 6-Figure 7 A trigger mechanism is provided on the left and right moving parts on the left three-axis moving platform 2. The trigger mechanism includes a connecting plate 141 connected to the left and right moving parts on the left three-axis moving platform. The connecting plate 141 is located behind the mounting plate 121. A rack 142 is connected to the connecting plate 141. The rear side of the rotating shaft II 122 is connected to a gear 144 through a one-way clutch 143. The rack 142 can engage with the gear 144 when it moves left and right.

[0034] When the left three-axis mobile platform 2 drives the left grinding sheet 10 to move rightward into the curved tubular metal casting, and drives the rack 142 to move rightward through the connecting plate 141, due to the action of the one-way clutch 143, the rack 142 pushes the gear 144 to idle when moving to the right, and does not drive the rotating shaft II 122 to rotate. When the left three-axis mobile platform 2 drives the left grinding sheet 10 to move leftward and move out of the curved tubular metal casting, and drives the rack 142 to move leftward through the connecting plate 141, at the same time, the telescopic rod of the electric push rod 132 is controlled to extend to push the L-shaped plug rod 131 downward to move out of the arc. The shaped plug block 133 is moved out to release the lock on the connecting plate 123. After the left grinding sheet 10 is moved out of the bent tubular metal casting, the rack 142 moves to the left until it engages with the gear 144, so that the rack 142 continues to move to the left to push the gear 144 to drive the rotating shaft II 122 to rotate 90 degrees, so that the connecting plate 123 drives the electric clamp to rotate 90 degrees, and then the bent tubular metal casting is rotated 90 degrees to align the unpolished area therein with the right grinding sheet 10, which can reduce the number of times the connecting plate 123 is manually rotated and adjusted, thereby saving time and effort.

[0035] See also Figure 8-Figure 9 A suction mechanism for sucking out waste chips in the curved tubular metal casting is provided on the top of the frame 1. The suction mechanism includes a collection frame 151 embedded in the top of the frame 1. The collection frame 151 is located on the front side of the mounting plate 121. The bottom of the collection frame 151 is slidably connected with a suction pipe 152 that can move up and down. The suction pipe 152 consists of a hose and a hard pipe. The hard pipe is slidably connected to the bottom of the collection frame 151. The hose is connected to the bottom end of the hard pipe. A suction nozzle 153 is connected to the top of the hard pipe. The diameter of the suction nozzle 153 is smaller than the diameter of the curved tubular metal casting, so that the suction nozzle 153 can be placed in the curved tubular metal casting to suck out the waste chips. The bottom of the collection frame 151 is tilted in the middle and low outside. The left and right sides of the bottom of the collection frame 151 are provided with discharge ports 154 for discharging waste chips.

[0036] The waste generated during grinding and polishing falls into the collection frame 151. Since the bottom of the collection frame 151 is tilted with a high center and a low outside, the waste inside can be guided to the left and right sides and discharged through the discharge port 154. In this way, there is no need to manually clean the waste inside the collection frame 151, which can save effort. The suction pipe 152 is connected to an external suction device. After the inner surface of the curved tubular metal casting is polished, the suction pipe 152 is manually held to put the suction nozzle 153 from bottom to top into the curved tubular metal casting. The suction device works and then sucks out the waste adhered to the inner surface of the curved tubular metal casting through the suction nozzle 153 to avoid the waste accumulating inside the curved tubular metal casting, thereby improving product quality.

[0037] The above only expresses the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A metal casting surface treatment device, comprising a frame (1), two left and right three-axis mobile platforms (2) are installed on the top of the frame (1), a driving motor (4) is installed on the mobile platform of the three-axis mobile platform (2), a rotating shaft I (5) is connected to the output shaft of the driving motor (4), and a connecting plate (8) is connected to the end of the rotating shaft I (5), characterized in that: The connecting plate (8) is provided with a connecting block (9) capable of reciprocating in the radial direction thereof, the connecting block (9) is connected with a grinding sheet (10), the grinding sheet (10) having a horizontal section and an arc section, the side where the two grinding sheets (10) are separated from each other being the horizontal section, and the side where the two grinding sheets (10) are close to each other being the arc section, the connecting plate (8) is threadedly connected with two upper and lower screws (11), the connecting block (9) is provided with a threaded hole matched with the screw (11), and the frame (1) is provided with a clamping and positioning mechanism for clamping and positioning the bent tubular metal casting.

2. The metal casting surface treatment equipment according to claim 1, characterized in that: The clamping and positioning mechanism comprises a mounting plate (121) connected to the rear side of the top of the frame (1), the mounting plate (121) being located between the two three-axis movable platforms (2), a connecting plate (123) being rotatably connected to the mounting plate (121) via a rotating shaft II (122), and an electric clamp for clamping and fixing the bent tubular metal casting is provided on the connecting plate (123).

3. A metal casting surface treatment equipment according to claim 2, characterized in that: The electric clamp comprises a fixed clamp (125) connected to the front side of the mounting plate (121); a movable clamp I (126) capable of moving up and down is provided on the mounting plate (121); the movable clamp I (126) is located on the upper side of the fixed clamp (125); a linear motor I (124) is installed on the mounting plate (121); a slider on the linear motor I (124) is connected to the movable clamp I (126) to drive the movable clamp I (126) to move up and down; a movable clamp II (127) capable of moving left and right is provided on the mounting plate (121); the movable clamp II (127) is located on the right side of the fixed clamp (125); a linear motor II (129) is installed on the mounting plate (121); a slider on the linear motor II (129) is connected to the movable clamp II (127) to drive the movable clamp II (127) to move left and right.

4. The metal casting surface treatment equipment according to claim 2, characterized in that: A locking mechanism for locking the connecting plate (123) is provided on the mounting plate (121), the locking mechanism comprising an electric push rod (132) mounted on the rear side of the mounting plate (121); an L-shaped plug rod (131) capable of moving up and down is provided on the mounting plate (121); the L-shaped plug rod (131) is connected to a telescopic rod of the electric push rod (132); arc-shaped plug blocks (133) are connected to the four sides of the rear side surface of the connecting plate (123); the L-shaped plug rod (131) is inserted into the arc-shaped plug block (133) to lock the connecting plate (123).

5. The metal casting surface treatment equipment according to claim 2, characterized in that: A trigger mechanism is provided on the three-axis mobile platform (2) on the left side, the trigger mechanism comprising a connecting plate (141) connected to the three-axis mobile platform (2) on the left side, a rack (142) connected to the connecting plate (141), a gear (144) connected to the rotating shaft II (122) via a one-way clutch (143), and the rack (142) can mesh with the gear (144) when moving left and right.

6. The metal casting surface treatment equipment according to claim 1, characterized in that: A suction mechanism for sucking out waste chips in the curved tubular metal casting is provided on the top of the frame (1), the suction mechanism comprising a collection frame (151) embedded in the top of the frame (1), a suction pipe (152) capable of moving up and down being slidably connected to the bottom of the collection frame (151), and a suction nozzle (153) being connected to the top of the suction pipe (152).

7. The metal casting surface treatment equipment according to claim 6, characterized in that: The bottom of the collecting frame (151) is arranged to be high in the middle and low on the outside, and an outlet (154) for discharging waste chips is provided on both left and right sides of the bottom of the collecting frame (151).

8. The metal casting surface treatment equipment according to claim 6, characterized in that: The diameter of the suction nozzle (153) is smaller than the diameter of the curved tubular metal casting.

Images