Crushing and shelling device for casting outer sand shell

Abstract

The utility model relates to a casting outer sand shell crushing and shelling device which comprises a rack erected on the crushing and shelling device, a vertical crushing impact hammer is arranged on the upper portion of the rack, a horizontal rectangular crushing platform is fixedly connected to the lower portion of the rack, and T-shaped supporting legs are fixedly connected to the lower end faces of the left side and the right side of the crushing platform respectively. Two sets of opposite multifunctional clamping mechanisms are arranged on the left side and the right side above the crushing platform correspondingly, each multifunctional clamping mechanism comprises a bearing plate which abuts against the upper end face of the crushing platform and is laterally erected, a V-shaped notch is formed in the middle of the upper end face of each bearing plate, and supporting plates extending downwards are formed on the front side and the rear side of each bearing plate; transverse dovetail grooves are formed in the front end face and the rear end face of the crushing platform respectively, dovetail-shaped guide blocks are formed on the side walls of the supporting plates, and the guide blocks are inserted into the dovetail grooves of the crushing platform. The multifunctional clamping mechanism on the crushing and shelling device has universality and can be used for loading castings of various structures, so that a clamp does not need to be repeatedly detached and replaced on a crushing platform.

Description

Technical Field:

[0001] The utility model relates to the technical field of crushing devices, and more specifically to a crushing and shelling device for the outer sand shell of a casting. Background Art:

[0002] Precision casting refers to the general term for the process of obtaining castings with precise dimensions. Compared with the traditional sand casting process, the castings obtained by precision casting have more precise dimensions and better surface finish. Precision casting is also called investment casting. Based on the shape and structure of the casting, a wax mold is made, and then an outer casting sand shell is made on the outside of the wax mold through glue and coated sand. By heating the outer casting sand shell, the wax mold inside melts and flows out. Subsequently, molten metal can be poured into the outer casting sand shell to achieve casting. The castings completed by casting need to be broken by a crushing device to break the outer sand shell; the current crushing device mainly consists of a frame, a crushing impact hammer, and a crushing platform. The crushing impact hammer and the crushing platform are respectively arranged at the upper and lower parts of the frame. The crushing impact hammer can move up and down on the frame and then repeatedly impact the castings loaded on the crushing platform; currently, some castings have a flat side, such as rectangular castings, and some have an arc-shaped outer surface, such as cylindrical castings. Different castings need to be installed on the crushing platform with different fixtures, and it is rather troublesome to replace and disassemble the fixtures. Therefore, a clamping structure with a general effect is needed. Content of the Utility Model:

[0003] The purpose of the utility model is to address the deficiencies of the existing technology and provide a crushing and shelling device for the outer sand shell of a casting. The multi-functional clamping mechanism on the crushing and shelling device has universality and can load castings with various structures, thus eliminating the need to repeatedly replace the fixtures on the crushing platform.

[0004] A crushing and shelling device for the outer sand shell of a casting includes a frame erected on the crushing and shelling device. A vertical crushing impact hammer is arranged at the upper part of the frame, and a horizontal rectangular crushing platform is fixedly connected to the lower part. T-shaped support feet are respectively fixedly connected to the lower end faces on the left and right sides of the crushing platform. Two groups of opposite multi-functional clamping mechanisms are respectively arranged on the left and right sides above the crushing platform. The multi-functional clamping mechanism includes a bearing plate that abuts against the upper end face of the crushing platform and stands upright. A V-shaped notch is formed in the middle of the upper end face of the bearing plate. Support plates extending downward are formed on the front and rear sides of the bearing plate. Transverse dovetail grooves are respectively formed on the front and rear end faces of the crushing platform. Dovetail-shaped guide blocks are formed on the side walls of the support plates, and the guide blocks are inserted into the dovetail grooves of the crushing platform.

[0005] "C"-shaped adjustment frame seats are respectively fixedly connected to the support plates on the left and right sides of the crushing platform. A number of transverse adjustment bolts are inserted into the adjustment frame seats, and the adjustment bolts are screwed onto the support feet.

[0006] The supporting plates on the front and rear sides of the V-shaped groove are respectively fixed with transverse clamping cylinders, and the piston rods of the clamping cylinders pass through the supporting plates and are fixed with longitudinal lower clamping plates, and the lower clamping plates are distributed between the supporting plates; a number of transverse linkage shafts are fixed on the lower clamping plates, and the linkage shafts pass through the supporting plates and are fixed with side linkage plates; a diamond-shaped upper clamping plate is provided above the V-shaped groove on the supporting plate, and a number of transverse guide columns and studs are respectively fixed on the upper clamping plate, and the guide columns and studs are respectively inserted on the linkage plates, and limiting nuts are screwed on the studs of the linkage plate and the upper clamping plate, and the limiting nuts rest on the linkage plate.

[0007] Preferably, a plurality of transverse lower screw holes and upper screw holes are formed on the lower clamping plate and the upper clamping plate respectively.

[0008] Preferably, a vertical triangular rib plate is fixedly connected to the middle of the end surface of the linkage plate facing away from the upper clamping plate, and a horizontal connecting plate is fixedly connected to the lower end of the rib plate, and the connecting plate is fixedly connected to the linkage plate;

[0009] The linkage plate is provided with two linkage shafts, which are distributed on the front and rear sides of the V-shaped notch.

[0010] Preferably, the length of the stud is equal to the length of the guide column, the guide column is a T-shaped cylinder, and the length of the guide column is greater than the length of the linkage shaft.

[0011] Preferably, the support plates of the bearing plate are respectively against the front and rear end surfaces of the crushing platform, and the two ends of the adjustment frame seat are respectively welded and fixed to the support plates.

[0012] Preferably, a plurality of transversely erected beams are welded and fixed between the supporting legs, and the upper end surfaces of the beams are welded and fixed to the lower end surface of the crushing platform.

[0013] Preferably, a avoidance notch opposite to the V-shaped notch is formed in the middle of the upper end surface of the lower clamping plate.

[0014] The beneficial effects of the utility model are:

[0015] The multifunctional clamping mechanism on the crushing and shelling device is universal and can load castings of various structures, thereby eliminating the need to repeatedly dismantle and replace the clamps on the crushing platform. Description of the drawings:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0018] Figure 3 It is a schematic structural diagram of the utility model from the side.

[0019] In the figure: 1. Crushing platform; 11. Dovetail groove; 2. Support feet; 3. Multi-functional clamping mechanism; 31. Bearing plate; 32. Clamping cylinder; 33. Lower clamping plate; 34. Upper clamping plate; 35. Guide post; 36. Stud; 37. Linking plate; 38. Linking shaft; 39. Limit nut; 310. Rib plate; 320. Connecting plate; 4. Adjusting frame base; 5. Adjusting bolt; 6. Beam plate. Specific implementation method:

[0020] Example: See Figures 1 to 3 As shown, a device for crushing and removing the outer sand shell of a casting includes a frame erected on the crushing and removing device. A vertical crushing impact hammer is provided at the upper part of the frame, and a horizontal rectangular crushing platform 1 is fixedly connected to the lower part. T-shaped support feet 2 are fixedly connected to the lower end faces on the left and right sides of the crushing platform 1 respectively. The support feet 2 are inverted, with a horizontal bottom plate at the lower part and a vertical vertical plate at the upper part. On the left and right sides above the crushing platform 1, two groups of opposite multi-functional clamping mechanisms 3 are respectively arranged. The multi-functional clamping mechanism 3 includes a bearing plate 31 that abuts against the upper end face of the crushing platform 1 and stands sideways. A V-shaped notch 311 is formed in the middle of the upper end face of the bearing plate 31. Support plates 312 extending downward are formed on the front and rear sides of the bearing plate 31. Transverse dovetail grooves 11 are respectively formed on the front and rear end faces of the crushing platform 1. Dovetail-shaped guide blocks 12 are formed on the side walls of the support plates 312. The guide blocks 12 are inserted into the dovetail grooves 11 of the crushing platform 1, and the bearing plate 31 can slide horizontally and be adjusted on the crushing platform 1 along the dovetail grooves 11.

[0021] Adjusting frame bases 4 in a "C" shape are respectively fixedly connected to the support plates 312 on the left and right sides of the crushing platform 1. A number of transverse adjusting bolts 5 are inserted into the adjusting frame bases 4, and the adjusting bolts 5 are screwed onto the support feet 2; the movement of the bearing plate 31 towards the two ends of the crushing platform 1 is restricted by the adjusting bolts 5.

[0022] Transverse clamping cylinders 32 are respectively fixedly connected to the bearing plate 31 on the front and rear sides of the V-shaped notch 311. The piston rods of the clamping cylinders 32 pass through the bearing plate 31 and are fixedly connected to longitudinal lower clamping plates 33. The lower clamping plates 33 are distributed between the bearing plates 31; a number of transverse linking shafts 38 are fixed on the lower clamping plates 33. The linking shafts 38 pass through the bearing plate 31 and are fixedly connected to side-standing linking plates 37; above the V-shaped notch 311 on the bearing plate 31, a diamond-shaped upper clamping plate 34 is provided. A number of transverse guide posts 35 and studs 36 are respectively fixedly connected to the upper clamping plate 34. The guide posts 35 and studs 36 are respectively inserted into the linking plates 37. Limit nuts 39 are screwed onto the studs 36 of the linking plates 37 and the upper clamping plate 34, and the limit nuts 39 abut against the linking plates 37.

[0023] The lower clamping plate 33 and the upper clamping plate 34 are respectively formed with a plurality of transverse lower screw holes 331 and upper screw holes 341, and a plurality of T-shaped top material blocks can be screwed onto the upper screw holes 341 and the lower screw holes 331. Since the side surface of the casting is not flat, a plurality of top material blocks of different sizes can be selected to be pressed on the side surface of the casting.

[0024] A vertical triangular rib plate 310 is fixedly connected to the middle of the end face of the linkage plate 37 facing away from the upper clamping plate 34, and a horizontal connecting plate 320 is fixedly connected to the lower end of the rib plate 310, and the connecting plate 320 is fixed to the linkage plate 37; the rib plate 310 can reinforce the strength of the linkage plate 37 and improve the stability of the clamping of the upper clamping plate 34.

[0025] The linkage plate 37 is provided with two linkage shafts 38 , which are distributed at the front and rear sides of the V-shaped notch 311 .

[0026] The length of the stud 36 is equal to the length of the guide column 35. Two guide columns 35 and two studs 36 are provided on the same multifunctional clamping mechanism 3. The two guide columns 35 and the two studs 36 are distributed at the four corners of the rectangular structural surface and are arranged diagonally at the same time; the guide column 35 adopts a T-shaped cylinder, and the length of the guide column 35 is greater than the length of the linkage shaft 38. The length of the guide column 35 can realize the flush arrangement of the lower clamping plate 33 and the upper clamping plate 34.

[0027] The support plates 312 of the bearing plate 31 are respectively pressed against the front and rear end surfaces of the crushing platform 1 , and the two ends of the adjusting frame seat 4 are respectively welded and fixed to the support plates 312 .

[0028] A plurality of transversely erected beams and plates 6 are welded and fixed between the supporting legs 2 , and the upper end surfaces of the beams and plates 6 are welded and fixed to the lower end surface of the crushing platform 1 .

[0029] A avoiding notch opposite to the V-shaped notch 311 is formed in the middle of the upper end surface of the lower clamping plate 33 .

[0030] Working principle: The utility model is a crushing and shelling device for the outer sand shell of a casting. The main technical feature of the crushing and shelling device is reflected in the clamping structure. Two groups of left and right opposite multifunctional clamping mechanisms 3 are provided on the crushing platform 1 of the crushing and shelling device. The multifunctional clamping mechanism 3 has multiple modes. The specific clamping modes are as follows:

[0031] 1. When clamping a small casting with a flat surface on one side, place the flat surface of the small casting on the crushing platform 1, and then start the clamping cylinder 32 to clamp and position the small casting through the lower clamping plate 33;

[0032] 2. When clamping a cylindrical casting, adjust the position of the carrier plate 31, place the casting in the V-shaped notch 311 of the carrier plate 31, support the casting with the carrier plate 31, and then start the clamping cylinder 32, and use the upper clamping plate 34 to clamp and position both sides of the casting.

[0033] 3. When clamping a large casting with a flat surface on one side, first rotate the limit nut 39 to make the inner clamping surface of the lower clamping plate 33 and the inner clamping surface of the upper clamping plate 34 flush, then place the flat side of the large casting on the crushing platform 1, start the dynamic clamping cylinder 32, and clamp the casting through the upper clamping plate 34 and the lower clamping plate 33, so that the clamping positioning has good stability.

[0034] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A device for crushing and shelling the outer sand shell of a casting, comprising a frame erected on the crushing and shelling device, a vertical crushing impact hammer is provided on the upper part of the frame, a horizontal rectangular crushing platform (1) is fixedly connected to the lower part, T-shaped legs (2) are fixedly connected to the lower end surfaces on the left and right sides of the crushing platform (1), and two sets of opposite multifunctional clamping mechanisms (3) are respectively provided on the left and right sides above the crushing platform (1), characterized in that: The multi-functional clamping mechanism (3) includes a bearing plate (31) that abuts against the upper end face of the crushing platform (1) and stands upright on its side. In the middle of the upper end face of the bearing plate (31), a V-shaped notch (311) is formed. On the front and rear sides of the bearing plate (31), downward-extending support plates (312) are formed. On the front and rear end faces of the crushing platform (1), horizontal dovetail grooves (11) are respectively formed. On the side walls of the support plates (312), dovetail-shaped guide blocks (12) are formed, and the guide blocks (12) are inserted into the dovetail grooves (11) of the crushing platform (1). On the support plates (312) on the left and right sides of the crushing platform (1), "C"-shaped adjusting frame seats (4) are respectively fixed. A number of horizontal adjusting bolts (5) are inserted into the adjusting frame seats (4), and the adjusting bolts (5) are screwed onto the support feet (2). On the front and rear sides of the bearing plate (31) at the V-shaped notch (311), horizontal clamping cylinders (32) are respectively fixed. The piston rods of the clamping cylinders (32) pass through the bearing plate (31) and are fixed to longitudinal lower clamping plates (33). The lower clamping plates (33) are distributed between the bearing plates (31). A number of horizontal linkage shafts (38) are fixed on the lower clamping plates (33), and the linkage shafts (38) pass through the bearing plates (31) and are fixed to upright linkage plates (37) on their sides. Above the V-shaped notch (311) on the bearing plate (31), a diamond-shaped upper clamping plate (34) is provided. A number of horizontal guide posts (35) and stud bolts (36) are respectively fixed on the upper clamping plate (34). The guide posts (35) and the stud bolts (36) are respectively inserted into the linkage plates (37), and limit nuts (39) are screwed onto the stud bolts (36) of the linkage plates (37) and the upper clamping plate (34), and the limit nuts (39) abut against the linkage plates (37).

2. The device for crushing and shelling the outer sand shell of a casting according to claim 1 is characterized in that: A number of horizontal lower screw holes (331) and upper screw holes (341) are respectively formed on the lower clamping plate (33) and the upper clamping plate (34).

3. The device for crushing and shelling the outer sand shell of a casting according to claim 1, characterized in that: In the middle of the end face of the linkage plate (37) on the side背离 the upper clamping plate (34), a vertically triangular rib plate (310) is fixed. The lower end of the rib plate (310) is fixed to a horizontal connecting plate (320), and the connecting plate (320) is fixed to the linkage plate (37). There are two linkage shafts (38) on the linkage plate (37), and the linkage shafts (38) are distributed on the front and rear sides of the V-shaped notch (311).

4. The device for crushing and shelling the outer sand shell of a casting according to claim 1, characterized in that: The length of the stud bolt (36) is equal to the length of the guide post (35). The guide post (35) is a T-shaped cylinder, and the length of the guide post (35) is greater than the length of the linkage shaft (38).

5. The device for crushing and shelling the outer sand shell of a casting according to claim 1, characterized in that: The support plates (312) of the bearing plate (31) respectively abut against the front and rear end faces of the crushing platform (1), and the two ends of the adjusting frame seat (4) are respectively welded and fixed to the support plates (312).

6. The device for crushing and shelling the outer sand shell of a casting according to claim 1, characterized in that: A number of horizontally erected beam plates (6) are welded and fixed between the support feet (2), and the upper end faces of the beam plates (6) are welded and fixed to the lower end face of the crushing platform (1).

7. The device for crushing and shelling the outer sand shell of a casting according to claim 1, characterized in that: In the middle of the upper end face of the lower clamping plate (33), an avoidance notch opposite to the V-shaped notch (311) is formed.

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