Novel sand mold casting equipment

Abstract

The utility model relates to the technical field of sand casting, in particular to novel sand casting equipment which comprises a support, a hydraulic cylinder is fixed at the top end of the support, a base is fixed at the bottom end of the support, supporting pieces are fixed at the top end of the base and the bottom end of a piston rod of the hydraulic cylinder, and two connecting pieces are arranged between the two supporting pieces. An upper die is arranged in the connecting piece close to the hydraulic cylinder, and a lower die is arranged in the connecting piece close to the base; output shafts of two motors drive two first bidirectional lead screws to rotate, first clamping blocks in two shells move away from an upper die and a lower die, the first bidirectional lead screws drive first bevel gears to rotate when rotating, the first bevel gears drive second bevel gears to rotate, second bidirectional lead screws rotate along with the first bevel gears, and second clamping blocks move away from the upper die and the lower die. And the output shaft of the motor drives the first two-way lead screw to rotate reversely, and under the cooperation of the first bevel gear, the second bevel gear and the second two-way lead screw, installation of the upper die and the lower die is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sand casting, in particular to a novel sand casting device. Background Art

[0002] Sand casting refers to a casting method that produces castings in sand molds. Steel, iron and most nonferrous alloy castings can be obtained by sand casting. Since the molding materials used in sand casting are cheap and easy to obtain, and the mold is easy to manufacture, it can adapt to the single-piece production, batch production and mass production of castings. The upper mold and lower mold of the sand casting equipment need to be removed and cleaned regularly. The upper mold and the lower mold are usually fixed in a specific position by bolts. The bolts used to fix the upper mold and the lower mold need to be removed with the help of tools before the upper mold and the lower mold can be removed, which makes it inconvenient to quickly disassemble and subsequently install the upper mold and the lower mold, affecting the progress of sand casting. Therefore, a new type of sand casting equipment is proposed to facilitate the disassembly and assembly of the upper mold and the lower mold. Utility Model Content

[0003] Aiming at the problems in the prior art, the utility model provides a novel sand casting device.

[0004] The technical solution adopted by the utility model to solve its technical problems is a novel sand casting equipment, comprising a bracket, a hydraulic cylinder is fixed on the top of the bracket, a base is fixed on the bottom of the bracket, a support is fixed on the top of the base and the bottom of the piston rod of the hydraulic cylinder, two connecting members are arranged between the two supporting members, an upper mold is arranged in the connecting member close to the hydraulic cylinder, a lower mold is arranged in the connecting member close to the base, a cavity is arranged on the top of the lower mold, the connecting member comprises a shell and a motor, a motor is fixed on the outer wall of the shell, an output shaft of the motor is connected to a first bidirectional screw rod through a coupling, an end of the first bidirectional screw rod away from the motor is rotatably connected to the shell, and two first bidirectional screw rods are arranged in the shell. A clamping block and two second clamping blocks, the two first clamping blocks are each provided with a screw hole adapted to the first bidirectional screw rod, a second bidirectional screw rod is rotatably connected in the shell, the two second clamping blocks are each provided with a screw hole adapted to the second bidirectional screw rod, a first bevel gear is fixed on the first bidirectional screw rod, a second bevel gear is fixed on the second bidirectional screw rod, the first bevel gear is meshed with the second bevel gear, the two first clamping blocks and the second clamping blocks are each extended outside the shell, four sliding grooves for the first clamping blocks and the second clamping blocks to slide are provided on the shell, slots adapted to the first clamping blocks are provided on both sides of the upper mold and the lower mold, and slots adapted to the second clamping blocks are provided on the other two sides of the upper mold and the lower mold, and a bottom plate is fixed to the bottom end of the shell.

[0005] By adopting the above technical scheme, the piston rod of the hydraulic cylinder drives the supporting parts and connecting parts close to the hydraulic cylinder to move downward, and the upper mold moves downward accordingly. The upper mold cooperates with the lower mold to realize the casting of the casting. The output shafts of the two motors drive the two first bidirectional screws to rotate, and the first clamping blocks in the two outer shells move away from the upper mold and the lower mold. When the first bidirectional screw rotates, it drives the first bevel gear to rotate. When the first bevel gear rotates, it drives the second bevel gear to rotate. The second bidirectional screw rotates accordingly, and the second clamping block moves away from the upper mold and the lower mold accordingly, which is convenient for the removal and maintenance of the upper mold and the lower mold. During installation, the output shaft of the motor drives the first bidirectional screw to rotate in the opposite direction. With the cooperation of the first bevel gear, the second bevel gear and the second bidirectional screw, the first clamping block and the second clamping block clamp the upper mold and the lower mold, which is convenient for the installation of the upper mold and the lower mold.

[0006] Specifically, two guide rods are fixed in the shell, and the two guide rods are cross-arranged in a cross shape. Through holes matching the guide rods are provided on the first clamping blocks and the second clamping blocks.

[0007] By adopting the above technical solution, the guide rod cooperates with the through holes on the first clamping block and the second clamping block, so that the stability of the first clamping block and the second clamping block can be improved.

[0008] Specifically, the support member includes a support and an insertion rod, two blocks are fixed to the side wall of the support, and two limit blocks are fixed to the outer wall of the shell. The support is provided with two dovetail grooves, and sliders are provided in the two dovetail grooves. The two sliders are connected to the shell, and the two blocks and limit blocks are provided with through holes for the ends of the insertion rod to pass through.

[0009] By adopting the above technical solution, the support, the slider, the stopper, the limit block and the insertion rod cooperate to prevent the shell from being displaced. The shell can be removed for maintenance by pulling out the two insertion rods and moving the shell horizontally.

[0010] Specifically, two handles are fixed to the outer wall of the shell, and the insertion rod is located between the two handles.

[0011] By adopting the above technical solution, the housing can be conveniently taken in and out by holding the handle.

[0012] Specifically, legs are fixed at four corners of the bottom end of the base, and anti-slip pads are fixed at the bottom ends of the four legs.

[0013] By adopting the above technical solution, the legs can support the base, and the anti-slip pads can improve the stability of the legs and the base.

[0014] Specifically, vertical rods are provided on both sides of the hydraulic cylinder, and the bottom ends of the two vertical rods penetrate the bracket and are connected to the support close to the hydraulic cylinder.

[0015] By adopting the above technical solution, the piston rod of the hydraulic cylinder drives the support member to move vertically, and the two vertical rods can improve the stability of the support member and the upper mold.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model describes a novel sand casting device, in which the piston rod of the hydraulic cylinder drives the supporting member and the connecting member near the hydraulic cylinder to move downward, and the upper mold moves downward accordingly, and the upper mold cooperates with the lower mold to realize the casting of the casting, and the output shafts of the two motors drive the two first bidirectional screws to rotate, and the first clamping blocks in the two outer shells move away from the upper mold and the lower mold. When the first bidirectional screw rotates, it drives the first bevel gear to rotate, and when the first bevel gear rotates, it drives the second bevel gear to rotate, and the second bidirectional screw rotates accordingly, and the second clamping block moves away from the upper mold and the lower mold accordingly, which is convenient for the removal and maintenance of the upper mold and the lower mold. During installation, the output shaft of the motor drives the first bidirectional screw to rotate in the opposite direction, and under the cooperation of the first bevel gear, the second bevel gear and the second bidirectional screw, the first clamping block and the second clamping block clamp the upper mold and the lower mold, which is convenient for the installation of the upper mold and the lower mold.

[0018] (2) The utility model discloses a novel sand casting device, wherein the support, the slide block, the stop block, the limit block and the insertion rod cooperate to prevent the outer shell from being displaced. The outer shell can be removed for maintenance by pulling out the two insertion rods and moving the outer shell horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the connector of the utility model;

[0022] Figure 3 For the utility model Figure 1 A magnified view of the structure in the middle.

[0023] In the figure: 1, bracket; 101, vertical rod; 2, hydraulic cylinder; 3, support member; 30, support; 31, slider; 32, stopper; 33, limit block; 34, plug rod; 35, handle; 4, upper mold; 5, lower mold; 6, connecting member; 60, shell; 61, first clamping block; 62, second clamping block; 63, bottom plate; 64, guide rod; 65, first bidirectional screw rod; 66, first bevel gear; 67, second bidirectional screw rod; 68, second bevel gear; 69, motor; 7, base; 8, support leg. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In order to facilitate the disassembly and assembly of the upper mold 4 and the lower mold 5, as an embodiment of the utility model, Figure 1 , Figure 2 As shown, a novel sand casting device described in the utility model comprises a bracket 1, a hydraulic cylinder 2 is fixed to the top of the bracket 1 by bolts, a base 7 is welded and fixed to the bottom end of the bracket 1, a support member 3 is fixed to the top of the base 7 and the bottom end of the piston rod of the hydraulic cylinder 2 by bolts, two connecting members 6 are arranged between the two supporting members 3, an upper mold 4 is arranged in the connecting member 6 close to the hydraulic cylinder 2, a lower mold 5 is arranged in the connecting member 6 close to the base 7, a cavity is arranged at the top of the lower mold 5, the connecting member 6 comprises a shell 60 and a motor 69, a motor 69 is fixed to the outer wall of the shell 60 by bolts, an output shaft of the motor 69 is connected to a first bidirectional screw rod 65 by a coupling, an end of the first bidirectional screw rod 65 away from the motor 69 is rotatably connected to the shell 60, two first clamping blocks 61 and two The second clamping block 62, the two first clamping blocks 61 are both provided with screw holes adapted to the first bidirectional screw rod 65, a second bidirectional screw rod 67 is rotatably connected in the shell 60, the two second clamping blocks 62 are both provided with screw holes adapted to the second bidirectional screw rod 67, a first bevel gear 66 is welded and fixed on the first bidirectional screw rod 65, a second bevel gear 68 is welded and fixed on the second bidirectional screw rod 67, the first bevel gear 66 is meshed with the second bevel gear 68, the two first clamping blocks 61 and the second clamping blocks 62 are both extended to the outside of the shell 60, four sliding grooves for the first clamping blocks 61 and the second clamping blocks 62 to slide are provided on the shell 60, slots adapted to the first clamping blocks 61 are provided on both sides of the upper mold 4 and the lower mold 5, and slots adapted to the second clamping blocks 62 are provided on the other two sides of the upper mold 4 and the lower mold 5, and a bottom plate 63 is welded and fixed to the bottom end of the shell 60.

[0026] When in use, the piston rod of the hydraulic cylinder 2 drives the supporting member 3 and the connecting member 6 near the hydraulic cylinder 2 to move downward, and the upper mold 4 moves downward accordingly. The upper mold 4 cooperates with the lower mold 5 to realize the casting of the casting, and the output shafts of the two motors 69 drive the two first bidirectional screw rods 65 to rotate, and the first clamping blocks 61 in the two housings 60 move away from the upper mold 4 and the lower mold 5. When the first bidirectional screw rod 65 rotates, it drives the first bevel gear 66 to rotate, and when the first bevel gear 66 rotates, it drives the second bevel gear 68 to rotate, and the second bidirectional screw rod 67 rotates accordingly, and the second clamping block 62 moves away from the upper mold 4 and the lower mold 5 accordingly, which is convenient for the removal and maintenance of the upper mold 4 and the lower mold 5. During installation, the output shaft of the motor 69 drives the first bidirectional screw rod 65 to rotate in the opposite direction. Under the cooperation of the first bevel gear 66, the second bevel gear 68 and the second bidirectional screw rod 67, the first clamping block 61 and the second clamping block 62 clamp the upper mold 4 and the lower mold 5, which is convenient for the installation of the upper mold 4 and the lower mold 5.

[0027] In order to improve the stability of the first clamping block 61 and the second clamping block 62, for example, Figure 2 As shown, two guide rods 64 are welded and fixed in the housing 60 , and the two guide rods 64 are cross-arranged in a cross shape. Through holes matching the guide rods 64 are opened on the two first clamping blocks 61 and the second clamping blocks 62 .

[0028] In order to facilitate the removal and maintenance of the housing 60, for example, Figure 1 , Figure 3 As shown, the support member 3 includes a support 30 and an insertion rod 34, two blocks 32 are welded and fixed to the side wall of the support 30, and two limit blocks 33 are welded and fixed to the outer wall of the shell 60. Two dovetail grooves are provided on the support 30, and sliders 31 are provided in the two dovetail grooves. The two sliders 31 are welded and connected to the shell 60, and through holes are opened on the two blocks 32 and the limit blocks 33 for the ends of the insertion rod 34 to pass through.

[0029] When in use, the support 30, the slider 31, the stopper 32, the limit block 33 cooperate with the insertion rod 34 to prevent the housing 60 from being displaced. The two housings 60 can be removed for maintenance by pulling out the two insertion rods 34 and moving the housings 60 horizontally.

[0030] In order to facilitate the removal of the housing 60, for example, Figure 3 As shown, two handles 35 are welded and fixed to the outer wall of the housing 60 , and the insertion rod 34 is located between the two handles 35 .

[0031] In order to improve the stability of the base 7, for example, Figure 1 As shown, legs 8 are welded and fixed at the four corners of the bottom end of the base 7, and anti-slip pads are fixed to the bottom ends of the four legs 8 by adhesive.

[0032] In order to improve the stability of the upper mold 4, for example, Figure 1 As shown, vertical rods 101 are provided on both sides of the hydraulic cylinder 2 , and the bottom ends of the two vertical rods 101 penetrate the bracket 1 and are welded to the support 30 close to the hydraulic cylinder 2 .

[0033] When the utility model is in use, the piston rod of the hydraulic cylinder 2 drives the support member 3 and the connecting member 6 close to the hydraulic cylinder 2 to move downward, and the upper mold 4 moves downward accordingly, and the upper mold 4 cooperates with the lower mold 5 to realize the casting of the casting;

[0034] The output shafts of the two motors 69 drive the two first bidirectional screws 65 to rotate, and the first clamping blocks 61 in the two housings 60 move away from the upper mold 4 and the lower mold 5. When the first bidirectional screws 65 rotate, they drive the first bevel gear 66 to rotate. When the first bevel gear 66 rotates, it drives the second bevel gear 68 to rotate. The second bidirectional screws 67 rotate accordingly, and the second clamping blocks 62 move away from the upper mold 4 and the lower mold 5 accordingly, so that the upper mold 4 and the lower mold 5 can be easily removed for maintenance;

[0035] During installation, the output shaft of the motor 69 drives the first bidirectional screw 65 to rotate in the opposite direction. With the cooperation of the first bevel gear 66, the second bevel gear 68 and the second bidirectional screw 67, the first clamping block 61 and the second clamping block 62 clamp the upper mold 4 and the lower mold 5 to facilitate the installation of the upper mold 4 and the lower mold 5.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new type of sand casting equipment, characterized in that: The invention comprises a support (1), wherein a hydraulic cylinder (2) is fixed at the top of the support (1), a base (7) is fixed at the bottom of the support (1), a support member (3) is fixed at the top of the base (7) and the bottom of the piston rod of the hydraulic cylinder (2), two connecting members (6) are arranged between the two supporting members (3), an upper mold (4) is arranged in the connecting member (6) close to the hydraulic cylinder (2), a lower mold (5) is arranged in the connecting member (6) close to the base (7), a cavity is arranged at the top of the lower mold (5), the connecting member (6) comprises a shell (60) and a motor (69), a motor (69) is fixed to the outer wall of the shell (60), an output shaft of the motor (69) is connected to a first bidirectional screw rod (65) through a coupling, an end of the first bidirectional screw rod (65) away from the motor (69) is rotatably connected to the shell (60), two first clamping blocks (61) and two second clamping blocks (62) are arranged in the shell (60), and the two supporting members (3) are connected to the outer wall of the shell (60). The first clamping block (61) is provided with a screw hole adapted to the first bidirectional screw rod (65); a second bidirectional screw rod (67) is rotatably connected in the housing (60); the two second clamping blocks (62) are provided with a screw hole adapted to the second bidirectional screw rod (67); a first bevel gear (66) is fixed to the first bidirectional screw rod (65); a second bevel gear (68) is fixed to the second bidirectional screw rod (67); the first bevel gear (66) and the second bevel gear (68) are connected to each other. The two first clamping blocks (61) and the second clamping blocks (62) are meshed with each other, and both extend outside the housing (60). The housing (60) is provided with four slide grooves for the first clamping blocks (61) and the second clamping blocks (62) to slide. Both sides of the upper mold (4) and the lower mold (5) are provided with slots adapted to the first clamping blocks (61). Both other sides of the upper mold (4) and the lower mold (5) are provided with card slots adapted to the second clamping blocks (62). A bottom plate (63) is fixed to the bottom end of the housing (60).

2. A novel sand casting equipment according to claim 1, characterized in that: Two guide rods (64) are fixed in the housing (60), and the two guide rods (64) are arranged crosswise in a cross shape. Through holes adapted to the guide rods (64) are provided on the two first clamping blocks (61) and the second clamping blocks (62).

3. A novel sand casting equipment according to claim 1, characterized in that: The support member (3) comprises a support (30) and an insertion rod (34); two blocks (32) are fixed to the side wall of the support (30); two limit blocks (33) are fixed to the outer wall of the shell (60); two dovetail grooves are provided on the support (30); sliders (31) are provided in the two dovetail grooves; the two sliders (31) are connected to the shell (60); and through holes for the ends of the insertion rod (34) to pass through are provided on the two blocks (32) and the limit blocks (33).

4. A novel sand casting equipment according to claim 3, characterized in that: Two handles (35) are fixed to the outer wall of the housing (60), and the insertion rod (34) is located between the two handles (35).

5. A novel sand casting equipment according to claim 1, characterized in that: Support legs (8) are fixed at the four corners of the bottom end of the base (7), and anti-slip pads are fixed at the bottom ends of the four support legs (8).

6. A novel sand casting equipment according to claim 1, characterized in that: Vertical rods (101) are provided on both sides of the hydraulic cylinder (2), and the bottom ends of the two vertical rods (101) pass through the bracket (1) and are connected to a support (30) close to the hydraulic cylinder (2).

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