Limiting device of core pulling machine

Abstract

According to the technical scheme, the limiting device of the core pulling machine is characterized in that the limiting device comprises a supporting plate, two V-shaped workpiece clamping plates and a two-way servo air cylinder are fixed to the supporting plate, triangular discharging blocks are arranged on one sides of the two V-shaped workpiece clamping plates, the lower surfaces of the triangular discharging blocks are connected with lifting assemblies, and the two V-shaped workpiece clamping plates and the two-way servo air cylinder are fixed to the supporting plate. Connecting plates are fixed to the two sides of the two-way servo air cylinder, and middle clamping blocks are fixed to the connecting plates. The two-way servo air cylinder can drive the middle clamping blocks fixed to the two connecting plates to move in the same direction or in the opposite directions, adjustment is carried out according to the diameter of the core-pulling workpiece, the middle position of the core-pulling workpiece can be clamped conveniently, and the limiting push head can abut against the end face of the core-pulling workpiece when moving. The core-pulling end of the core-pulling workpiece can be clamped on the core-pulling template, so that the position of the core-pulling workpiece is limited, the position deviation of the workpiece in the core-pulling process is avoided, and the stable performance, quality and efficiency of core-pulling can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of core pulling machines, in particular to a limiting device of the core pulling machines. Background Art

[0002] The core pulling machine is a processing equipment, which is mainly used to extract the core of metal materials by mechanical force to realize the manufacturing of various pipes, bearings, castings and other parts. The core pulling machine is widely used in the industrial field because it can handle cores of various material types and sizes. Through core pulling, useless parts can be removed from metal parts, and the core can be retained to achieve the purpose of manufacturing. When the core pulling machine is working, a limit device will be used to limit the workpiece to ensure the smooth performance of core pulling.

[0003] For example, the Chinese patent with the authorization announcement number CN210706149U discloses a core pulling machine, including a carrier frame for carrying a hose, a positioning frame for fixing the hose, a guide rail arranged on the side of the positioning frame away from the carrier frame, and a core pulling device slidably arranged on the guide rail, wherein the core pulling device includes a slide frame slidably arranged on the guide rail, a clamping mechanism arranged on the slide frame and used to grasp the mold core column, and a driving mechanism arranged on the slide frame and used to drive the slide frame to move along the guide rail.

[0004] The above-mentioned core pulling machine has the advantage of reducing manual labor intensity; however, the above-mentioned core pulling machine and the core pulling machines commonly used on the market still have some disadvantages, such as: during the limiting process, only the core pulling end of the workpiece is fixed, and the other parts are not limited and fixed, resulting in the whole stressed workpiece being easy to shake during the core pulling process, and the position being skewed, affecting the core pulling stability, quality and efficiency of the core pulling machine. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a limiting device for a core pulling machine to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A limiting device for a core pulling machine comprises a support plate, two V-shaped workpiece clamping plates and a bidirectional servo cylinder are fixed on the support plate, a triangular blanking block is arranged on one side of the two V-shaped workpiece clamping plates, a lifting assembly is connected to the lower surface of the triangular blanking block, connecting plates are fixed on both sides of the bidirectional servo cylinder, and a middle clamping block is fixed on the connecting plate;

[0008] A servo electric cylinder is fixed on one side of the support plate, a limited push head is fixed on the telescopic end of the servo electric cylinder, two symmetrical plug-in blocks are fixed on the support plate, and core-pulling templates are inserted on the two plug-in blocks.

[0009] By adopting the above technical solution, the two V-shaped workpiece clamping plates fixed on the support plate facilitate the placement of the core-pulling workpiece. The vertical movement height of the triangular blanking block can be adjusted through the lifting assembly, so that the triangular blanking block can abut against the surface during the falling process of the core-pulling workpiece, improving the smoothness of blanking. The bidirectional servo cylinder fixed on the support plate can drive the middle clamping blocks fixed on the two connecting plates to move in the same or opposite directions, and adjust according to the diameter of the core-pulling workpiece, facilitating the clamping of the middle position of the core-pulling workpiece. The limiting push head fixed at the telescopic end of the servo electric cylinder can abut against the end face of the core-pulling workpiece during movement, so that the core-pulling end of the core-pulling workpiece can be engaged with the core-pulling template, thereby limiting the position of the core-pulling workpiece and firmly fixing it between the two V-shaped workpiece clamping plates, avoiding the deviation of the workpiece position during the core-pulling process, and greatly improving the smoothness, quality and efficiency of core-pulling.

[0010] Preferably, the lifting assembly includes a double-rod servo cylinder and a strip plate. The double-rod servo cylinder is fixed on the lower surface of the support plate, and the output end is fixedly connected with the strip plate. The strip plate is fixedly connected with the triangular blanking block.

[0011] By adopting the above technical solution, the double-rod servo cylinder can drive the triangular blanking block fixed on the strip plate to move vertically up and down, abutting against the falling core-pulling workpiece, improving the smoothness of blanking.

[0012] Preferably, the upper surface of the middle clamping block is provided with an inclined surface, and a V-shaped clamping groove is formed on the side surface.

[0013] By adopting the above technical solution, the inclined surface facilitates the downward movement of the core-pulling workpiece, so that it can fall into the V-shaped clamping groove of the middle clamping block, facilitating clamping.

[0014] Preferably, a U-shaped groove is formed on the plug-in block, and U-shaped blocks are arranged on both sides of the core-pulling template. The U-shaped blocks are inserted into the U-shaped groove.

[0015] By adopting the above technical solution, the U-shaped blocks are inserted into the U-shaped groove, facilitating the replacement of the core-pulling template in the plug-in block and being convenient for use.

[0016] Preferably, a buffer bracket is fixed on one side of the plug-in block, a damping rod is fixed on the buffer bracket, and a rubber stopper is fixed at the end of the damping rod.

[0017] By adopting the above technical solution, the damping rod fixed on the buffer bracket has seismic buffering performance, which can prevent the core-pulling component from hitting the core-pulling template during movement, thus abutting against the rubber stopper, absorbing external force and improving the protection effect of the core-pulling template.

[0018] Preferably, a core-pulling loading box is fixed to one side of the support plate, a screw module is fixed in the core-pulling loading box, and a loading plate is fixed to the movable end of the screw module.

[0019] By adopting the above technical solution, when the moving end of the screw module drives the loading plate to move vertically, the core-pulling workpiece can be driven to move upward, so that the core-pulling loading box can automatically slide onto the V-shaped workpiece clamping plate.

[0020] Preferably, a material guide inclined plate is provided above the V-shaped workpiece clamping plate, and the material guide inclined plate is fixed at the opening of the core-pulling feeding box.

[0021] By adopting the above technical solution, the accurate performance of the sliding position of the core-pulling workpiece is greatly improved through the material guide inclined plate.

[0022] Preferably, two symmetrical support frames are fixed on the lower surface of the support plate, and a protective cover is arranged on the upper surface.

[0023] By adopting the above technical solution, the stability of the support plate can be improved through the support frame, and the impact of external forces on the device can be greatly reduced through the protective cover, thereby protecting the workpiece.

[0024] In summary, the utility model mainly has the following beneficial effects:

[0025] First, in the limiting device of the core-pulling machine, the two V-shaped workpiece clamps fixed on the support plate are convenient for placing the core-pulling workpiece. The vertical moving height of the triangular blanking block can be adjusted by the lifting component, so that the triangular blanking block can stop on the surface of the core-pulling workpiece during the falling process, thereby improving the stability of blanking. The two-way servo cylinder fixed on the support plate can drive the middle clamping blocks fixed on the two connecting plates to move in the same or opposite directions, and can be adjusted according to the diameter of the core-pulling workpiece, so as to facilitate clamping the middle position of the core-pulling workpiece.

[0026] Second, in the limiting device of the core pulling machine, the limiting push head fixed by the telescopic end of the servo electric cylinder can be pressed against the end face of the core pulling workpiece when moving, so that the core pulling end of the core pulling workpiece can be engaged on the core pulling template, thereby limiting the position of the core pulling workpiece and making it firmly fixed on the two V-shaped workpiece clamps, avoiding the position of the workpiece from shifting during the core pulling process, which can greatly improve the stability, quality and efficiency of the core pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is one of the structural schematic diagrams of the utility model;

[0028] Figure 2 This is the second structural diagram of the utility model;

[0029] Figure 3This is the third structural schematic diagram of the utility model;

[0030] Figure 4 It is Figure 2 The partial enlarged view at position A in

[0031] Figure 5 It is Figure 2 The partial enlarged view at position B in

[0032] Reference numerals: 1, support plate; 2, V-shaped workpiece clamping plate; 3, triangular blanking block; 4, lifting assembly; 41, double-rod servo cylinder; 42, strip plate; 5, two-way servo cylinder; 6, connecting plate; 7, middle clamping block; 8, servo electric cylinder; 9, limit push head; 10, insertion block; 11, core-pulling template; 12, inclined surface; 13, V-shaped clamping groove; 14, U-shaped groove; 15, U-shaped block; 16, buffer bracket; 17, damping rod; 18, rubber stopper; 19, core-pulling feeding box; 20, lead screw module; 21, feeding plate; 22, guide inclined plate; 23, support frame; 24, protective cover. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] Refer to Figure 1-Figure 5 , a limiting device for a core-pulling machine, including a support plate 1, on which two V-shaped workpiece clamping plates 2 and a two-way servo cylinder 5 are fixed. On one side of each of the two V-shaped workpiece clamping plates 2, a triangular blanking block 3 is provided. The lower surface of the triangular blanking block 3 is connected to a lifting assembly 4. The lifting assembly 4 includes a double-rod servo cylinder 41 and a strip plate 42. The double-rod servo cylinder 41 is fixed on the lower surface of the support plate 1, and its output end is fixedly connected to the strip plate 42. The strip plate 42 is fixedly connected to the triangular blanking block 3. By the double-rod servo cylinder 41, the triangular blanking block 3 fixed on the strip plate 42 can be vertically moved up and down to abut against the falling core-pulling workpiece, improving the smoothness of blanking. On both sides of the two-way servo cylinder 5, connecting plates 6 are fixed, and a middle clamping block 7 is fixed on the connecting plates 6;

[0035] On one side of the support plate 1, a servo electric cylinder 8 is fixed. A limit push head 9 is fixed on the telescopic end of the servo electric cylinder 8. Two symmetric insertion blocks 10 are fixed on the support plate 1, and a core-pulling template 11 is inserted on the two insertion blocks 10.

[0036] During use, the two V-shaped workpiece clamping plates 2 fixed on the support plate 1 facilitate the placement of the core-pulling workpiece. The vertical movement height of the triangular blanking block 3 can be adjusted through the lifting assembly 4, so that the triangular blanking block 3 can abut against the surface during the falling process of the core-pulling workpiece, improving the smoothness of blanking. The limiting push head 9 fixed to the telescopic end of the servo electric cylinder 8 can abut against the end face of the core-pulling workpiece during movement, so that the core-pulling end of the core-pulling workpiece can be engaged with the core-pulling template 11, thereby limiting the position of the core-pulling workpiece. The bidirectional servo cylinder 5 fixed on the support plate 1 can drive the middle clamping blocks 7 fixed on the two connecting plates 6 to move in the same or opposite directions, and adjust according to the diameter of the core-pulling workpiece, facilitating the clamping of the middle position of the core-pulling workpiece, firmly fixing it between the two V-shaped workpiece clamping plates 2, and avoiding the position deviation of the workpiece during the core-pulling process, which can greatly improve the smoothness, quality and efficiency of core-pulling.

[0037] Reference Figure 1-Figure 5 , an inclined surface 12 is provided on the upper surface of the middle clamping block 7, and a V-shaped clamping groove 13 is provided on the side surface. The inclined surface 12 facilitates the downward movement of the core-pulling workpiece, so that it can fall into the V-shaped clamping groove 13 of the middle clamping block 7 for convenient clamping.

[0038] Reference Figure 1-Figure 5 , a U-shaped groove 14 is provided on the insertion block 10, and U-shaped blocks 15 are provided on both sides of the core-pulling template 11. The U-shaped blocks 15 are inserted into the U-shaped groove 14. The insertion of the U-shaped blocks 15 into the U-shaped groove 14 facilitates the replacement of the core-pulling template 11 in the insertion block 10 and is convenient for use.

[0039] Reference Figure 1-Figure 5 , a buffer bracket 16 is fixed on one side of the insertion block 10, a damping rod 17 is fixed on the buffer bracket 16, and a rubber stopper 18 is fixed at the end of the damping rod 17. The damping rod 17 fixed on the buffer bracket 16 has seismic buffering performance, which can prevent the core-pulling component from hitting the core-pulling template 11 during movement, thereby abutting against the rubber stopper 18, absorbing external force, and improving the protection effect of the core-pulling template 11.

[0040] Reference Figure 1-Figure 5 , a core-pulling loading box 19 is fixed on one side of the support plate 1, a lead screw module 20 is fixed in the core-pulling loading box 19, and a loading plate 21 is fixed on the moving end of the lead screw module 20. When the moving end of the lead screw module 20 drives the loading plate 21 to move vertically, it can drive the core-pulling workpiece to move upward, so that it automatically slides from the core-pulling loading box 19 onto the V-shaped workpiece clamping plate 2.

[0041] Reference Figure 1-Figure 5 , a guide inclined plate 22 is provided above the V-shaped workpiece clamping plate 2. The guide inclined plate 22 is fixed at the opening of the core-pulling loading box 19, which greatly improves the accuracy of the sliding position of the core-pulling workpiece.

[0042] refer to Figure 1-Figure 5 Two symmetrical support frames 23 are fixed on the lower surface of the support plate 1, and a protective cover 24 is arranged on the upper part. The support frames 23 can improve the stability of the support plate 1, and the protective cover 24 can greatly reduce the influence of external forces on the device and protect the workpiece.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A limiting device for a core pulling machine, comprising a support plate (1), characterized in that: Two V-shaped workpiece clamps (2) and a bidirectional servo cylinder (5) are fixed on the support plate (1). On one side of each of the two V-shaped workpiece clamps (2), a triangular blanking block (3) is arranged. The lower surface of the triangular blanking block (3) is connected with a lifting assembly (4). On both sides of the bidirectional servo cylinder (5), connecting plates (6) are fixed, and a middle clamping block (7) is fixed on the connecting plate (6). A servo electric cylinder (8) is fixed on one side of the support plate (1). A limiting push head (9) is fixed on the telescopic end of the servo electric cylinder (8). Two symmetric plug-in blocks (10) are fixed on the support plate (1), and a core-pulling template (11) is inserted into the two plug-in blocks (10).

2. A limiting device for a core pulling machine according to claim 1, characterized in that: The lifting assembly (4) includes a double-rod servo cylinder (41) and a strip-shaped plate (42). The double-rod servo cylinder (41) is fixed on the lower surface of the support plate (1), and the output end is fixedly connected with the strip-shaped plate (42). The strip-shaped plate (42) is fixedly connected with the triangular blanking block (3).

3. The limiting device of the core pulling machine according to claim 1, characterized in that: An inclined surface (12) is arranged on the upper surface of the middle clamping block (7), and a V-shaped clamping groove (13) is formed on the side surface.

4. The limiting device of the core pulling machine according to claim 1, characterized in that: A U-shaped groove (14) is formed in the plug-in block (10). On both sides of the core-pulling template (11), U-shaped blocks (15) are arranged, and the U-shaped blocks (15) are inserted into the U-shaped groove (14).

5. The limiting device of the core pulling machine according to claim 1, characterized in that: A buffer bracket (16) is fixed on one side of the plug-in block (10). A damping rod (17) is fixed on the buffer bracket (16), and a rubber stopper (18) is fixed at the end of the damping rod (17).

6. The limiting device of the core pulling machine according to claim 1, characterized in that: A core-pulling loading box (19) is fixed on one side of the support plate (1). A lead screw module (20) is fixed in the core-pulling loading box (19), and a loading plate (21) is fixed on the moving end of the lead screw module (20).

7. A limiting device for a core pulling machine according to claim 6, characterized in that: A guide inclined plate (22) is arranged above the V-shaped workpiece clamp (2), and the guide inclined plate (22) is fixed at the opening of the core-pulling loading box (19).

8. The limiting device of the core pulling machine according to claim 1, characterized in that: Two symmetric support frames (23) are fixed on the lower surface of the support plate (1), and a protective cover (24) is arranged above them.

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