Mechanical casting mold positioning device

Abstract

The invention relates to the field of casting mold positioning equipment, in particular to a mechanical casting mold positioning device which comprises a top plate, a clamping assembly, a driving assembly and a lifting assembly, a rectangular hole is formed in the top plate, and the top face of the lifting assembly is matched with the rectangular hole; the clamping assembly comprises two sliding clamping blocks arranged on the upper plate face of the top plate in a sliding mode, two first linkage rods rotationally connected to the upper plate face of the top plate and second linkage rods with the two ends rotationally connected with the first linkage rods and the sliding clamping blocks correspondingly, and the two sliding clamping blocks are located on the two opposite sides of the rectangular hole correspondingly. And the two first linkage rods are located on the two opposite sides of the rectangular hole correspondingly and located between the two sliding clamping blocks, the driving end of the driving assembly is fixedly connected with the two sliding clamping blocks, and the effect that the position of the mold body can be correspondingly and effectively adjusted according to needs conveniently is achieved.

Description

Technical Field

[0001] The present application relates to the field of casting mold positioning equipment, and in particular to a mechanical casting mold positioning device. Background Art

[0002] At present, a casting mold refers to a mold made in advance with other easily formed materials in order to obtain the structural shape of the part. The mold is then placed in a sand mold to form a cavity with the same size as the part structure. A flowing liquid is then poured into the cavity. After the liquid cools and solidifies, a part with the same shape and structure as the mold can be formed.

[0003] At present, casting molds are one of the most important process equipment in casting production, which has a great impact on the quality of castings. The quality of parts produced by casting molds mainly depends on the positioning of the mold before processing. The accuracy of positioning directly affects the production quality of parts.

[0004] The above-mentioned prior art solutions have the following defects: the positioning devices of most molds are not very flexible, and the position of the mold body cannot be effectively adjusted and changed accordingly as needed. Therefore, a mechanical casting mold positioning device is proposed to flexibly adjust the position of the mold body. Summary of the invention

[0005] In order to facilitate the effective adjustment of the position of the mold body according to needs, the present application provides a mechanical casting mold positioning device.

[0006] The above technical objectives of this application are achieved through the following technical solutions: A mechanical casting mold positioning device comprises a top plate, a clamping assembly arranged on the upper plate surface of the top plate, a driving assembly arranged on the lower plate surface of the top plate and providing power for the clamping assembly, and a lifting assembly arranged under the top plate and cooperating with the clamping assembly to position the mechanical casting mold; A rectangular hole is provided on the top plate, and the top surface of the lifting assembly is adapted to the rectangular hole; The clamping assembly includes two sliding clamping blocks slidably arranged on the upper surface of the top plate, two first connecting rods rotatably connected to the upper surface of the top plate, and a second connecting rod whose two ends are rotatably connected to the first connecting rod and the sliding clamping block respectively. The two sliding clamping blocks are respectively located on opposite sides of the rectangular hole, and the two first connecting rods are respectively located on opposite sides of the rectangular hole and between the two sliding clamping blocks. When positioning the mechanical casting mold, the end of the first connecting rod can be rotated into the rectangular hole, and when taking and placing the mechanical casting mold, the end of the first connecting rod can be rotated outside the rectangular hole. The driving end of the driving assembly is fixedly connected to the two sliding clamping blocks.

[0007] By adopting the above technical solution, the mechanical casting mold is placed in the opening area of ​​the top plate and on the storage plate, and then the driving component is controlled to drive the two sliding clamping blocks to approach each other until the sliding clamping blocks and the two first connecting rods form a tight clamping and positioning for the mechanical casting mold from multiple directions. At the same time, according to the actual size of the mechanical casting mold, the lifting component is controlled to lift and lower, so as to cooperate with the sliding clamping blocks and the first connecting rods to select a suitable positioning position on the mechanical casting mold for clamping, so that the mechanical casting mold can be placed on the positioning device according to the actual specifications and adjusted to the placement position, so that the positioning device can adjust mechanical casting molds of different shapes and sizes and achieve the purpose of flexible clamping and positioning.

[0008] Optionally, the second connecting rod includes an external sleeve with an open end and a closed end respectively, a rotating screw rotatably arranged at the closed end of the external sleeve, a limiting ring fixed to one end of the rotating screw close to the open end of the external sleeve, and a telescopic sleeve with closed ends at both ends and threadedly connected to the rotating screw, the limiting ring is located inside the telescopic sleeve, and the telescopic sleeve is adapted to the external sleeve and slides inside the external sleeve.

[0009] By adopting the above technical solution, before clamping and positioning the mechanical casting mold, the rotating screw can be rotated to make the telescopic sleeve extend out of the external sleeve according to the actual specifications of the mechanical casting mold, thereby adjusting the length of the second connecting rod and the clamping range of the first connecting rod and the two sliding clamping blocks, thereby further improving the applicability of the positioning device and facilitating flexible and effective adjustment when clamping and positioning the mechanical casting mold.

[0010] Optionally, the outer wall of the limiting ring fits with the inner wall of the telescopic sleeve.

[0011] By adopting the above technical solution, the limit ring fits the inner wall of the telescopic sleeve and the stability of the telescopic sleeve during its movement.

[0012] Optionally, the closed end of the external sleeve is hinged to the end of the first connecting rod, and one end of the telescopic sleeve away from the closed end of the external sleeve is hinged to the sliding clamping block.

[0013] By adopting the above technical solution, the end of the rotating screw is located outside the closed end of the external sleeve. Compared with the rotating screw being close to the sliding clamping block, there is a larger operating space between the first connecting rod and the external sleeve, thereby facilitating the rotating operation of the rotating screw.

[0014] Optionally, the lifting assembly includes a vertically arranged electric push rod with a piston rod facing a top plate opening and a storage plate horizontally fixed above the piston rod, and the storage plate is adapted to the rectangular hole.

[0015] By adopting the above technical solution, the storage plate can be located in the placement area of ​​the two top plates, and the two top plates can form a larger placement surface, which is convenient for placing mechanical casting molds. Optionally, when the storage plate is at the lowest height, the upper surface of the storage plate is lower than the upper surface of the top plate.

[0016] By adopting the above technical solution, a recessed placement space can be formed for the mechanical casting mold to be positioned, effectively improving the stability of the mechanical casting mold after placement, thereby facilitating the placement of the mechanical casting mold and subsequent clamping and positioning.

[0017] Optionally, the lifting assembly further comprises a connecting plate fixedly connected to the housing of the electric push rod, a mounting plate fixedly connected to the end of the piston rod, and a hinged rod; The hinged rod includes two first hinged rods whose lower ends are hinged to the connecting plate, two second hinged rods whose lower ends are hinged to the upper ends of the first hinged rods and whose middle parts are hinged to the mounting plate, and three third hinged rods whose lower ends are hinged to the upper ends of the second hinged rods and whose upper ends are hinged to the lower surface of the storage board.

[0018] By adopting the above technical solution, the lifting range of the lifting assembly can be effectively improved, and the space occupied by the lifting assembly can be reduced, so that the overall height of the positioning device is reduced. After the overall height of the positioning device is reduced, it is convenient for the staff to place the mechanical casting mold on the storage plate.

[0019] Optionally, two guide columns are fixedly connected to the lower surface of the storage plate, and a fixed sleeve is fixedly provided on the mounting plate. The guide column is adapted to the fixed sleeve and is slidably inserted into the fixed sleeve.

[0020] By adopting the above technical solution, the stability of the storage plate when it is raised or lowered during the operation of the lifting device is improved.

[0021] Optionally, the driving assembly includes a connecting groove fixedly connected to the top plate and with a notch connected to the upper surface of the top plate, a slider slidably arranged in the connecting groove, a connecting rod passing through the side wall of the connecting groove and fixed to the slider at one end, and a driving screw rotatably arranged on the bottom surface of the top plate and threadedly connected to the other end of the connecting rod, wherein the driving screw is provided with two sections of threads with opposite rotation directions.

[0022] By adopting the above technical solution, the two sliding clamping blocks can be synchronously controlled to move closer to or farther away from the mechanical casting mold, thereby facilitating the clamping and positioning of the mechanical casting mold.

[0023] Optionally, a connecting rod slidably inserted into a connecting groove is fixedly connected to the side of the slider away from the driving screw, a guide rod is fixedly connected to the bottom surface of the top plate, and the guide rod and the driving screw are located on the same side of the rectangular hole, and the connecting rod between the slider and the guide rod is slidably connected to the guide rod.

[0024] By adopting the above technical solution, the sliding stability of the slider is improved, so as to achieve the purpose of improving the operating stability of the drive component.

[0025] In summary, this application has the following technical effects: 1. By setting up a top plate, a clamping assembly, a driving assembly, and a lifting assembly, the sliding clamping block and the two first linkage rods form a clamping and positioning for the mechanical casting mold from multiple directions. According to the actual size of the mechanical casting mold, the lifting assembly is controlled to lift and lower, and the sliding clamping block and the first linkage rod are cooperated to select a suitable positioning position on the mechanical casting mold for clamping, so that the mechanical casting mold can be placed on the positioning device according to the actual specifications and adjusted to the placement position, so that the positioning device can adjust mechanical casting molds of different shapes and sizes and achieve flexible clamping and positioning; 2. By setting up an external sleeve, a rotating screw, a limiting ring, and a telescopic sleeve, the length of the second connecting rod can be adjusted according to the actual specifications and dimensions of the mechanical casting mold, and the clamping range of the first connecting rod and the two sliding clamping blocks can be adjusted, thereby further improving the applicability of the positioning device and facilitating flexible and effective adjustment of the clamping and positioning of the mechanical casting mold; 3. By setting up the connecting plate, the mounting plate, and the hinged rod, the lifting range of the lifting assembly is effectively improved, and the space occupied by the lifting assembly is reduced, so that the overall height of the positioning device is reduced. After the overall height of the positioning device is reduced, it is convenient for the staff to place the mechanical casting mold on the storage plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the appearance structure diagram of this application; Figure 2 It is a schematic diagram of the cross-sectional structure of the telescopic sleeve; Figure 3 It is a schematic diagram of the structure of the drive component; Figure 4 It is a structural schematic diagram of the lifting assembly.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. support frame; 11. bottom plate; 12. support rod; 13. top plate; 2. clamping assembly; 21. sliding clamping block; 22. first connecting rod; 23. second connecting rod; 231. external sleeve; 2311. limiting groove; 232. fixing seat; 233. rotating screw; 234. limiting ring; 235. telescopic sleeve; 2351. limiting key; 236. first hinge plate; 237. second hinge plate; 3. driving assembly; 31. connecting groove; 32. sliding block; 33. connecting rod; 34. guide rod; 35. driving screw; 36. driving motor; 4. lifting assembly; 41. electric push rod; 42. connecting plate; 43. mounting plate; 44. fixed sleeve; 45. first hinge rod; 46. second hinge rod; 47. third hinge rod; 48. storage plate; 49. guide column. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] The present application embodiment discloses a mechanical casting mold positioning device, referring to Figure 1 The positioning device includes a support frame 1, a clamping assembly 2 arranged on the upper part of the support frame 1 for clamping the mechanical casting mold, a driving assembly 3 arranged on the support frame 1 and used to drive the clamping assembly 2, and a lifting assembly 4 arranged at the lower part of the support frame 1. The lifting assembly 4 can cooperate with the clamping assembly 2 to better clamp and fix the mechanical casting molds of different heights, so as to improve the applicability of the positioning device.

[0030] Reference Figure 1 The support frame 1 includes a horizontally arranged bottom plate 11, four vertically arranged support rods 12 whose lower ends are fixed to the upper surface of the bottom plate 11, and a top plate 13 horizontally fixed at the upper ends of the support rods 12. The four support rods 12 are arranged in a rectangular shape, and a rectangular hole is opened on the surface of the top plate 13, which forms a rectangular placement area for placing a mechanical casting mold.

[0031] Reference Figure 1 The clamping assembly 2 includes a sliding clamping block 21 slidably disposed on the top plate 13, a first connecting rod 22 rotatably disposed on the top plate 13 at the midpoint of the length, and a second connecting rod 23 rotatably connected at both ends to the ends of the first connecting rod 22 and the ends of the sliding clamping block 21. Two sliding clamping blocks 21 are provided and can slide relative to or opposite to each other. The two sliding clamping blocks 21 are respectively located on both sides of the rectangular hole, and the length directions of the two sliding clamping blocks 21 are parallel to the opposite sides of the rectangular hole. An arc-shaped notch facing the rectangular hole is provided on the sliding clamping block 21, and the two arc-shaped notches are arranged opposite to each other. The arc-shaped opening can clamp a mechanical casting mold with a circular or irregular shape, thereby expanding the use range of the positioning device for mechanical casting molds of different shapes.

[0032] Reference Figure 1 There are two first connecting rods 22, which are respectively located on opposite sides of the rectangular hole, and are located between the two sliding clamping blocks 21. The ends of the first connecting rods 22 can be rotated into the rectangular hole. When the mechanical casting mold is taken in and out, the ends of the first connecting rods 22 can be rotated outside the rectangular hole. There are four second connecting rods 23, and each second connecting rod 23 is arranged between each first connecting rod 22 and the sliding clamping block 21. When the mechanical casting mold needs to be positioned, the mechanical casting mold is placed between the two sliding clamping blocks 21. When the driving component 3 provides power to make the two sliding clamping blocks 21 approach each other, the mechanical casting mold can be clamped. At the same time, the sliding clamping block 21 drives the second connecting rod 23 to rotate the first connecting rod 22 until the end of the first connecting rod 22 is tightly against the mechanical casting mold, so that the two first connecting rods 22 and the two sliding clamping blocks 21 can stably clamp and position the mechanical casting mold.

[0033] Combination Figure 1 and Figure 2 The second linkage rod 23 includes an external sleeve 231 with a closed end at one end and an open end at the other end, a fixed seat 232 fixedly arranged on the outer end surface of the closed end of the external sleeve 231, a rotating screw 233 with one end rotatably arranged on the fixed seat 232 and the other end located in the external sleeve 231, a limit ring 234 fixedly sleeved on one end of the rotating screw 233 located inside the external sleeve 231, and a telescopic sleeve 235 with both ends closed and hollow inside. A hand wheel is fixedly connected to one end of the rotating screw 233 located outside the closed end of the external sleeve 231, and a scale is engraved on the outer wall of the telescopic sleeve 235. The external sleeve 231, the fixed seat 232, the rotating screw 233 and the telescopic sleeve 235 are all coaxially arranged. The rotating screw 233 is located at one end of the external sleeve 231 and is spaced from the open end of the external sleeve 231. The length of the telescopic sleeve 235 is consistent with that of the external sleeve 231. When the telescopic sleeve 235 is completely located inside the external sleeve 231, the end of the telescopic sleeve 235 away from the closed end of the external sleeve 231 is located outside the external sleeve 231. The outer diameter of the telescopic sleeve 235 is consistent with the inner diameter of the external sleeve 231. The telescopic sleeve 235 is slidably arranged inside the external sleeve 231. One end of the telescopic sleeve 235 located in the external sleeve 231 is threadedly connected to the rotating screw 233, and the limiting ring 234 is located inside the telescopic sleeve 235. The outer diameter of the limiting ring 234 is consistent with the inner diameter of the telescopic sleeve 235.

[0034] Reference Figure 2A limit groove 2311 is formed on the inner wall of the external sleeve 231 along its axial direction, and a limit key 2351 is fixedly connected to the outer wall of the telescopic sleeve 235. The limit key 2351 is adapted to the limit groove 2311 and slides in the limit groove 2311, so that during the rotation of the rotating screw 233, the telescopic sleeve 235 can stably extend out of the external sleeve 231 along the length direction of the limit groove 2311.

[0035] With reference to the scale engraved on the outside of the second connecting rod 23, the two sets of second connecting rods 23 can be adjusted to the same length, so that the ends of the two first connecting rods 22 can simultaneously clamp the mechanical casting mold. The external sleeve 231 does not rotate, and the telescopic sleeve 235 can only extend or retract along the axis of the external sleeve 231 under the limiting action of the internal limit key 2351 of the external sleeve 231, thereby achieving the purpose of changing the overall length. By changing the length of the telescopic sleeve 235 to change the angle of rotation required during the clamping process of the first connecting rod 22, it can be matched with the sliding stroke of the sliding clamping block 21, so as to achieve the purpose of stable clamping of molds of different sizes.

[0036] Reference Figure 2 The second connecting rod 23 further includes a first hinge plate 236 fixedly disposed outside the closed end of the external sleeve 231, and a second hinge plate 237 fixedly disposed on the end surface of the telescopic sleeve 235 away from the first hinge plate 236. The first hinge plate 236 is rotatably connected to the end of the first connecting rod 22, and the second hinge plate 237 is rotatably connected to the sliding clamping block 21.

[0037] Combination Figure 1 , Figure 3 The driving assembly 3 includes a connecting groove 31 fixedly set on the lower surface of the top plate 13, a slider 32 adapted to the connecting groove 31 and slidably set in the notch of the connecting groove 31, and a connecting rod 33 with one end fixed to the slider 32. The connecting groove 31 is located on one side of the rectangular opening, the notch of the connecting groove 31 is perpendicular to the surface of the top plate 13 and the notch is connected to the upper surface of the top plate 13, and the length direction of the connecting groove 31 is perpendicular to the length direction of the sliding clamping block 21. The connecting groove 31 includes a groove body and wing plates integrally formed on opposite sides of the groove body, the plate surface of the wing plate is perpendicular to the notch direction of the groove body, and the plate surface of the wing plate is flush with the notch. Both wing plates are fixed to the lower surface of the top plate 13, thereby ensuring that the connecting groove 31 will not occupy the limited space of the rectangular placement area of ​​the mechanical casting mold.

[0038] The slider 32 is in a square shape and is flush with the top surface of the top plate 13 near the outer wall of the top plate 13. The slider 32 is fixedly connected to the sliding clamping block 21. When the slider 32 slides in the connecting groove 31, it can stably drive the sliding clamping block 21 to clamp and fix the mechanical casting mold.

[0039] Reference Figure 3 The driving assembly 3 further includes a guide rod 34 fixedly arranged on the bottom surface of the top plate 13, a driving screw 35 rotatably arranged on the bottom surface of the top plate 13, and a driving motor 36 fixedly arranged on the bottom surface of the top plate 13. The guide rod 34, the driving motor 36 and the driving screw 35 are all located on the same side of the rectangular hole, and the driving motor 36 and the driving screw 35 are connected through a gear transmission. The driving screw 35 is formed with two sections of threads with opposite rotation directions at two sections separated by the midpoint of its length.

[0040] The axial directions of the guide rod 34 and the driving screw rod 35 and the length direction of the connecting groove 31 are parallel to each other and parallel to the plate surface of the top plate 13. Connecting seats are provided on both ends of the guide rod 34 and the driving screw rod 35, and the guide rod 34 and the driving screw rod 35 are spaced apart from the top plate 13.

[0041] Reference Figure 3 , a connecting rod 33 is fixedly connected to the opposite sides of the same slider 32, a sleeve matching the guide rod 34 is fixedly connected to the end of one connecting rod 33 near the guide rod 34, a nut matching the drive screw 35 is fixedly connected to the end of the other connecting rod 33 near the drive screw 35, and the nut is threadedly connected to the drive screw 35. When the power of the drive motor 36 is turned on, the drive motor 36 drives the drive screw 35 to rotate, so that the two sliding clamping blocks 21 are close to or away from each other. When the mechanical casting mold needs to be positioned, the two sliding clamping blocks 21 are close to each other, so that the mechanical casting mold can be clamped and positioned; when the mechanical casting mold needs to be removed, the two sliding clamping blocks 21 are controlled to move away from each other, so that the clamping of the mechanical casting mold can be released.

[0042] Combination Figure 1 , Figure 4 The lifting assembly 4 includes an electric push rod 41 which is vertically arranged and whose lower end of the shell is fixed to the upper surface of the bottom plate 11, a connecting plate 42 which is horizontally fixed to the upper end of the shell of the electric push rod 41, a mounting plate 43 which is horizontally fixed to the end of the piston rod of the electric push rod 41, two fixed sleeves 44 which are passed through and fixed to the mounting plate 43, two groups of hinged rods which are hinged to the connecting plate 42 and the mounting plate 43, a storage plate 48 which is hinged to the upper ends of the two groups of hinged rods and is located above the mounting plate 43, and two guide posts 49 which are vertically arranged and whose upper ends are fixed to the lower surface of the storage plate 48, the two guide posts 49 are symmetrically arranged on the storage plate 48, and the two guide posts 49 are respectively slidably inserted in the two fixed sleeves 44. The storage plate 48 is horizontally arranged, and the storage plate 48 is a rectangular plate and has the same area as the rectangular placement area of ​​the top plate 13.

[0043] Reference Figure 4Each set of hinged rods includes a first hinged rod 45 whose lower end is hinged on the side wall of the connecting plate 42, a second hinged rod 46 whose lower end is hinged to the first hinged rod 45, and a third hinged rod 47 whose lower end is hinged to the upper end of the second hinged rod 46. A hinge seat is fixedly installed on the lower plate surface of the storage plate 48, the upper end of the third hinged rod 47 is hinged on the hinge seat, and the middle point of the length of the second hinged rod 46 is hinged to the side wall of the mounting plate 43. The first hinged rod 45, the second hinged rod 46 and the third hinged rod 47 connected end to end are in a Z shape, and each set of hinged rods is respectively provided with two first hinged rods 45, two second hinged rods 46 and two third hinged rods 47, and the two first hinged rods 45 in one set are in a V shape, the two second hinged rods 46 are in an X shape, and the two third hinged rods 47 are in an eight shape. The two sets of hinged rods are symmetrically arranged on the electric push rod 41, and the guide column 49 is located between the two sets of hinged rods. When the piston rod of the electric push rod 41 is fully retracted into the cylinder body, the upper plate surface of the storage plate 48 is lower than the lower plate surface of the top plate 13, so that the storage plate 48 and the rectangular storage area form a concave storage space, which is conducive to the placement of the mechanical casting mold and the subsequent clamping and positioning.

[0044] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A mechanical casting mold positioning device, characterized in that: It comprises a top plate (13), a clamping assembly (2) arranged on the upper surface of the top plate (13), a driving assembly (3) arranged on the lower surface of the top plate (13) and providing power for the clamping assembly (2), and a lifting assembly (4) arranged below the top plate (13) and cooperating with the clamping assembly (2) to position the mechanical casting mold; A rectangular hole is formed on the top plate (13), and the top surface of the lifting assembly (4) is adapted to the rectangular hole; The clamping assembly (2) comprises two sliding clamping blocks (21) slidably arranged on the upper surface of the top plate (13), two first connecting rods (22) rotatably connected to the upper surface of the top plate (13), and a second connecting rod (23) whose two ends are rotatably connected to the first connecting rod (22) and the sliding clamping block (21), respectively. The two sliding clamping blocks (21) are respectively located on opposite sides of the rectangular hole, and the two first connecting rods (22) are respectively located on opposite sides of the rectangular hole and between the two sliding clamping blocks (21). When positioning the mechanical casting mold, the end of the first connecting rod (22) can be rotated into the rectangular hole, and when taking and placing the mechanical casting mold, the end of the first connecting rod (22) can be rotated outside the rectangular hole. The driving end of the driving assembly (3) is fixedly connected to the two sliding clamping blocks (21).

2. A mechanical casting mold positioning device according to claim 1, characterized in that: The second connecting rod (23) comprises an external sleeve (231) having an open end and a closed end respectively, a rotating screw (233) rotatably arranged at the closed end of the external sleeve (231), a limiting ring (234) fixedly connected to one end of the rotating screw (233) close to the open end of the external sleeve (231), and a telescopic sleeve (235) having closed ends at both ends and being threadedly connected to the rotating screw (233), wherein the limiting ring (234) is located inside the telescopic sleeve (235), and the telescopic sleeve (235) is adapted to the external sleeve (231) and slides inside the external sleeve (231).

3. A mechanical casting mold positioning device according to claim 2, characterized in that: The outer wall of the limiting ring (234) fits in contact with the inner wall of the telescopic sleeve (235).

4. A mechanical casting mold positioning device according to claim 2, characterized in that: The closed end of the external sleeve (231) is hinged to the end of the first linkage rod (22), and one end of the telescopic sleeve (235) away from the closed end of the external sleeve (231) is hinged to the sliding clamping block (21).

5. A mechanical casting mold positioning device according to claim 1, characterized in that: The lifting assembly (4) comprises an electric push rod (41) which is vertically arranged and has a piston rod opening toward the top plate (13), and a storage plate (48) which is horizontally fixed above the piston rod, and the storage plate (48) is adapted to the rectangular hole.

6. A mechanical casting mold positioning device according to claim 5, characterized in that: When the storage plate (48) is at the lowest height, the upper surface of the storage plate (48) is lower than the upper surface of the top plate (13).

7. A mechanical casting mold positioning device according to claim 5 or 6, characterized in that: The lifting assembly (4) further comprises a connecting plate (42) fixedly connected to the housing of the electric push rod (41), a mounting plate (43) fixedly connected to the end of the piston rod, and a hinged rod; The hinged rods include two first hinged rods (45) whose lower ends are hinged to the connecting plate (42), two second hinged rods (46) whose lower ends are hinged to the upper ends of the first hinged rods (45) and whose middle parts are hinged to the mounting plate (43), and two third hinged rods (47) whose lower ends are hinged to the upper ends of the second hinged rods (46) and whose upper ends are hinged to the lower surface of the storage plate (48).

8. A mechanical casting mold positioning device according to claim 7, characterized in that: Two guide columns (49) are fixedly connected to the lower plate surface of the storage plate (48), and a fixed sliding sleeve (44) is fixedly arranged on the mounting plate (43). The guide column (49) is adapted to the fixed sliding sleeve (44) and is slidably arranged in the fixed sliding sleeve (44).

9. A mechanical casting mold positioning device according to claim 1, characterized in that: The driving assembly (3) comprises a connecting groove (31) fixedly connected to the top plate (13) and having a notch communicating with the upper plate surface of the top plate (13), a sliding block (32) slidably arranged in the connecting groove (31), a connecting rod (33) penetrating the side wall of the connecting groove (31) and having one end fixedly connected to the sliding block (32), and a driving screw (35) rotatably arranged on the bottom surface of the top plate (13) and threadedly connected to the other end of the connecting rod (33), wherein the driving screw (35) is provided with two sections of threads with opposite rotation directions.

10. A mechanical casting mold positioning device according to claim 9, characterized in that: A connecting rod (33) is fixedly connected to the side of the slider (32) away from the driving screw rod (35) and is slidably inserted into the connecting groove (31). A guide rod (34) is fixedly connected to the bottom surface of the top plate (13). The guide rod (34) and the driving screw rod (35) are located on the same side of the rectangular hole. The connecting rod (33) located between the slider (32) and the guide rod (34) is slidably connected to the guide rod (34).

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