Anti-deformation symmetrical jacking clamp for thin-wall casting

Abstract

The utility model discloses a thin-wall casting anti-deformation symmetrical jacking clamp, and relates to the technical field of symmetrical jacking clamps, the thin-wall casting anti-deformation symmetrical jacking clamp comprises a bottom plate, the left end of the upper surface of the bottom plate is fixedly connected with a left fixing plate, the right end of the upper surface of the bottom plate is fixedly connected with a right fixing plate, and a guide mechanism is installed between the left fixing plate and the right fixing plate; a moving plate is installed on the guide mechanism, a right pressing head is fixedly connected to the left side face of the moving plate, a right clamping groove is formed in the middle of the left side face of the right pressing head, a left pressing head is fixedly connected to the right side face of the left fixing plate, an inner jacking mechanism is arranged between the left pressing head and the right pressing head, and a left clamping groove is formed in the middle of the right side face of the left pressing head. A first through hole is formed in the upper end of the left side face of the left fixing plate and communicates with the left clamping groove through the second through hole. Through cooperation of the structures, the jacking effect on the casting can be improved when the thin-wall cylindrical casting is machined.

Description

Technical Field

[0001] The utility model belongs to the technical field of symmetrical jacking clamps, in particular to a symmetrical jacking clamp for preventing deformation of thin-wall castings. Background Art

[0002] Thin-walled cylindrical castings refer to cylindrical castings with larger diameters and thinner walls. They are widely used in various industrial sectors due to their light weight, material saving, compact structure, etc. The purpose of the fixture is to better fix the machine during the manufacturing process. At present, there are many studies on the fixture device for thin-walled cylindrical castings in China. Most of them use external pressure to clamp the round tube. There are fewer fixture devices for thin-walled cylindrical castings, and even fewer internal support fixtures for thin-walled cylindrical castings.

[0003] The utility model with announcement number CN215280990U discloses an anti-deformation tooling for processing thin-walled cylindrical parts, including a fixed plate, a rotating structure, and an automatic tightening structure, wherein the rotating structure and the automatic tightening structure are relatively and parallelly arranged on the fixed plate; wherein the automatic tightening structure includes a moving structure and an end clamping structure, and the end clamping structure is arranged on the moving structure.

[0004] In the process of implementing this application, it was found that the technology has the following problems: in the above patent documents, the thin-walled cylindrical casting is mainly tightened by using a first clamping head and a second clamping head close to each other, but this structure can only tighten the casting from both sides, and there is no corresponding support and tightening structure inside the cylinder; when processing a certain part of the outer surface of the thin-walled cylinder, if there is a lack of supporting and tightening structure from the inside, it may cause the cylinder to sink and deform from the outside to the inside, and the tightening effect is poor.

[0005] Therefore, a symmetrical clamp for preventing deformation of thin-walled castings is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a symmetrical tightening fixture for thin-walled castings to prevent deformation, in order to improve the tightening effect on the castings when processing the thin-walled cylindrical castings.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A symmetrical tightening fixture for preventing deformation of thin-walled castings comprises a bottom plate, the left end of the upper surface of the bottom plate is fixedly connected to a left fixing plate, the right end of the upper surface of the bottom plate is fixedly connected to a right fixing plate, a guide mechanism is installed between the left fixing plate and the right fixing plate, a movable plate is installed on the guide mechanism, the left side surface of the movable plate is fixedly connected to a right clamping head, a right clamping groove is provided in the middle part of the left side surface of the right clamping head, the right side surface of the left fixing plate is fixedly connected to a left clamping head, an inner tightening mechanism is provided between the left clamping head and the right clamping head, a left clamping groove is provided in the middle part of the right side surface of the left clamping head, a through hole one is provided on the upper end of the left side surface of the left fixing plate, and the through hole one is connected with the left clamping groove through a through hole two;

[0009] The inner tightening mechanism includes an insertion column, the outer surface of the left end of the insertion column is plugged into the inner surface of the left card slot, an inner groove is opened inside the insertion column, a threaded rod is threadedly connected to the inner wall of the left end of the inner groove, a connecting rod is fixedly connected to the right end of the threaded rod, an end of the threaded rod away from the connecting rod passes through the second through hole and the right fixed plate and then extends to the outside, and an extrusion block is fixedly connected to the end of the connecting rod away from the threaded rod;

[0010] A through hole is symmetrically provided on the outer surface of the right end of the plug column, and the internal volume of the through hole is communicated with the internal volume of the inner groove. A second slide rod is slidably connected to the inner surface of the through hole, and one end of the second slide rod extending to the inside of the inner groove is fixedly connected to an inclined block, and one end of the second slide rod away from the inclined block is extended to the outside and fixedly connected to an arc-shaped tightening plate.

[0011] Furthermore, the guide mechanism includes a motor, which is fixedly connected to the left side of the lower end of the right fixed plate. A screw rod is installed at the output end of the motor, and the end of the screw rod away from the motor is rotatably connected to the right side of the left fixed plate through a bearing.

[0012] Furthermore, the lower end of the movable plate is threadedly connected to the outer surface of the screw rod, and the left side of the right fixed plate on both sides of the motor is fixedly connected with a sliding rod 1, and the end of the sliding rod 1 away from the right fixed plate moves through the movable plate and is fixedly connected to the right side of the left fixed plate.

[0013] Furthermore, an input terminal of the motor is electrically connected to an external power source.

[0014] Furthermore, the inner diameter of the right slot is the same as the external dimension of the right end of the plug post.

[0015] Furthermore, the length of the inclined block is greater than the inner diameter of the through hole.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] In the utility model, when processing the thin-walled cylindrical casting, the left end of the plug column can be first inserted into the left clamping groove, and the threaded rod can be extended to the left side of the left fixed plate through the second through hole and the first through hole, and then the left end of the thin-walled cylindrical casting is passed through the plug column and abutted against the outer surface of the left clamping head; then the guide mechanism is used to drive the movable plate and the right clamping head to approach the right end of the thin-walled cylindrical casting until the outer surface of the right clamping head abuts against the inner wall of the right end of the thin-walled cylindrical casting, and the right clamping groove is plugged with the outer surface of the right end of the plug column, so that The casting is tightened from both ends; then the threaded rod can be rotated to drive the extrusion block to move to the right through the connecting rod. The extrusion block moving to the right will squeeze the inclined block, and the squeezed inclined block will drive the arc-shaped tightening plate to move outward through the sliding rod, so as to resist the inner wall corresponding to the processed part of the outer surface of the thin-walled cylindrical casting, and support and tighten the processed part of the outer surface of the thin-walled cylindrical casting from the inside to prevent deformation of the part; through the cooperation of the above structure, the tightening effect of the casting can be improved when processing the thin-walled cylindrical casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0021] Figure 4 It is a cross-sectional view of the utility model without the inner tightening mechanism.

[0022] Markings in the figure: 1-bottom plate, 2-guide mechanism, 5-right clamping head, 6-left clamping head, 7-inner clamping mechanism, 8-movable plate, 11-left fixed plate, 12-right fixed plate, 13-through hole 1, 21-motor, 22-screw rod, 23-slide rod 1, 51-right card slot, 61-left card slot, 62-through hole 2, 71-insertion column, 72-inner slot, 73-through hole, 74-slide rod 2, 75-oblique block, 76-arc-shaped clamping plate, 77-threaded rod, 78-connecting rod, 79-extrusion block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] Reference Figure 1-Figure 4 A symmetrical clamp for preventing deformation of thin-walled castings comprises a bottom plate 1, a left fixing plate 11 is fixedly connected to the left end of the upper surface of the bottom plate 1, a right fixing plate 12 is fixedly connected to the right end of the upper surface of the bottom plate 1, a guide mechanism 2 is installed between the left fixing plate 11 and the right fixing plate 12, a left clamping head 6 is fixedly connected to the right side of the left fixing plate 11, an inner clamping mechanism 7 is arranged between the left clamping head 6 and the right clamping head 5, a left card slot 61 is opened in the middle of the right side of the left clamping head 6, a through hole 13 is opened at the upper end of the left side of the left fixing plate 11, and the through hole 13 is connected to the left card slot 61 through a through hole 2 62; the inner clamping mechanism 7 comprises a plug post 71, and the plug post 71 The outer surface of the left end is plugged into the inner surface of the left slot 61, and an inner groove 72 is opened inside the column 71. The inner wall of the left end of the inner groove 72 is threadedly connected with a threaded rod 77, and the right end of the threaded rod 77 is fixedly connected with a connecting rod 78. The end of the threaded rod 77 away from the connecting rod 78 passes through the second through hole 62 and the right fixed plate 12 and extends to the outside; specifically, when processing the thin-walled cylindrical casting, the left end of the column 71 can be first plugged into the left slot 61, and the threaded rod 77 passes through the second through hole 62 and the first through hole 13 to extend to the left side of the left fixed plate 11, and then the left end of the thin-walled cylindrical casting is passed through the column 71 and abutted against the outer surface of the left clamping head 6.

[0025] Reference Figure 1-Figure 4 A movable plate 8 is installed on the guide mechanism 2, and a right clamping head 5 is fixedly connected to the left side of the movable plate 8. A right clamping groove 51 is opened in the middle of the left side of the right clamping head 5. The guide mechanism 2 includes a motor 21, and the motor 21 is fixedly connected to the left side of the lower end of the right fixed plate 12. A screw rod 22 is installed at the output end of the motor 21. The end of the screw rod 22 away from the motor 21 is rotatably connected to the right side of the left fixed plate 11 through a bearing. The lower end of the movable plate 8 is threadedly connected to the outer surface of the screw rod 22, and the input end of the motor 21 Electrically connected to an external power source, the inner diameter of the right card slot 51 is the same as the external dimension of the right end of the plug post 71; specifically, start the motor 21 to rotate the screw rod 22, and the movable plate 8 can move to the left under the rotation of the screw rod 22. The movable plate 8 moving to the left will drive the right clamping head 5 to approach the right end of the thin-walled cylindrical casting until the outer surface of the right clamping head 5 is against the inner wall of the right end of the thin-walled cylindrical casting, and the right card slot 51 is plugged into the outer surface of the right end of the plug post 71, so as to tighten the casting from both ends.

[0026] Reference Figure 1-Figure 4The left side of the right fixed plate 12 on both sides of the motor 21 is fixedly connected with a sliding rod 23, and the end of the sliding rod 23 away from the right fixed plate 12 is movable through the movable plate 8 and fixedly connected with the right side of the left fixed plate 11; specifically, the movement of the movable plate 8 can be guided by the two sliding rods 23 to prevent the movable plate 8 from rotating in the same direction as the screw rod 22 when moving.

[0027] Reference Figure 1-Figure 4 The end of the connecting rod 78 away from the threaded rod 77 is fixedly connected to an extrusion block 79, and a through hole 73 is symmetrically opened on the outer surface of the right end of the plug column 71. The internal volume of the through hole 73 is connected to the internal volume of the inner groove 72. The inner surface of the through hole 73 is slidably connected to a second slide rod 74, and the end of the second slide rod 74 extending to the inside of the inner groove 72 is fixedly connected to an inclined block 75. The end of the second slide rod 74 away from the inclined block 75 extends to the outside and is fixedly connected to an arc-shaped top tightening plate 76. The length of the inclined block 75 is greater than the inner diameter of the through hole 73. Specifically, rotating the threaded rod 77 can drive the extrusion block 79 to move rightward through the connecting rod 78. The extrusion block 79 moving rightward will squeeze the inclined block 75. The squeezed inclined block 75 will drive the arc-shaped tightening plate 76 to move outward through the sliding rod 74 so as to resist the inner wall corresponding to the processed outer surface of the thin-walled cylindrical casting, support and tighten the processed outer surface of the thin-walled cylindrical casting from the inside to prevent deformation of the thin-walled cylindrical casting. The above structure can improve the tightening effect of the casting when processing the thin-walled cylindrical casting.

[0028] The implementation principle of the embodiment of the symmetrical clamp for preventing deformation of thin-walled castings in the present application is as follows:

[0029] When using the clamp, first connect the external power supply. When processing the thin-walled cylindrical casting, the left end of the column 71 can be inserted into the left slot 61, and the threaded rod 77 can be extended through the through hole 2 62 and the through hole 1 13 to the left side of the left fixed plate 11. Then, the left end of the thin-walled cylindrical casting is passed through the column 71 and abutted against the outer surface of the left clamping head 6; then the motor 21 is started to rotate the screw rod 22, and the movable plate 8 can move to the left under the rotation of the screw rod 22. The movable plate 8 moving to the left will drive the right clamping head 5 to approach the right end of the thin-walled cylindrical casting until the outer surface of the right clamping head 5 abuts against the inner wall of the right end of the thin-walled cylindrical casting, and the right slot 51 is plugged with the outer surface of the right end of the column 71, so as to tighten the casting from both ends.

[0030] Then the threaded rod 77 can be rotated to drive the extrusion block 79 to move to the right through the connecting rod 78. The extrusion block 79 moving to the right will squeeze the inclined block 75, and the squeezed inclined block 75 will drive the arc-shaped tightening plate 76 to move outward through the sliding rod 2 74 so as to resist the inner wall corresponding to the processed outer surface of the thin-walled cylindrical casting, support and tighten the processed outer surface of the thin-walled cylindrical casting from the inside to prevent deformation of the thin-walled cylindrical casting. The above structure can improve the tightening effect of the casting when processing the thin-walled cylindrical casting.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A symmetrical clamp for preventing deformation of thin-walled castings, comprising a bottom plate (1), characterized in that: A left fixed plate (11) is fixedly connected to the left end of the upper surface of the bottom plate (1), and a right fixed plate (12) is fixedly connected to the right end of the upper surface of the bottom plate (1). A guide mechanism (2) is installed between the left fixed plate (11) and the right fixed plate (12). A movable plate (8) is installed on the guide mechanism (2). A right clamping head (5) is fixedly connected to the left side of the movable plate (8). A right clamping groove (51) is provided in the middle of the left side of the right clamping head (5). A left clamping head (6) is fixedly connected to the right side of the left fixed plate (11). An inner clamping mechanism (7) is provided between the left clamping head (6) and the right clamping head (5). A left clamping groove (61) is provided in the middle of the right side of the left clamping head (6). A through hole 1 (13) is provided at the upper end of the left side of the left fixed plate (11). The through hole 1 (13) is connected to the left clamping groove (61) through a through hole 2 (62). The inner tightening mechanism (7) comprises an inserting column (71), the outer surface of the left end of the inserting column (71) is inserted into the inner surface of the left card slot (61), an inner slot (72) is provided inside the inserting column (71), a threaded rod (77) is threadedly connected to the inner wall of the left end of the inner slot (72), the right end of the threaded rod (77) is fixedly connected to a connecting rod (78), one end of the threaded rod (77) away from the connecting rod (78) passes through the second through hole (62) and the right fixed plate (12) and then extends to the outside, and one end of the connecting rod (78) away from the threaded rod (77) is fixedly connected to an extrusion block (79); A through hole (73) is symmetrically provided on the outer surface of the right end of the plug post (71), and the internal cavity of the through hole (73) is communicated with the internal cavity of the inner groove (72). The inner surface of the through hole (73) is slidably connected to a second slide bar (74), and one end of the second slide bar (74) extending to the inside of the inner groove (72) is fixedly connected to an inclined block (75), and one end of the second slide bar (74) away from the inclined block (75) is extended to the outside and fixedly connected to an arc-shaped tightening plate (76).

2. A symmetrical clamp for preventing deformation of thin-walled castings as claimed in claim 1, characterized in that: The guide mechanism (2) comprises a motor (21), the motor (21) being fixedly connected to the left side of the lower end of the right fixed plate (12), a screw rod (22) being mounted on the output end of the motor (21), and an end of the screw rod (22) away from the motor (21) being rotatably connected to the right side of the left fixed plate (11) via a bearing.

3. A symmetrical clamp for preventing deformation of thin-walled castings as claimed in claim 2, characterized in that: The lower end of the movable plate (8) is threadedly connected to the outer surface of the screw rod (22); a slide rod (23) is fixedly connected to the left side of the right fixed plate (12) on both sides of the motor (21); and one end of the slide rod (23) away from the right fixed plate (12) moves through the movable plate (8) and is fixedly connected to the right side of the left fixed plate (11).

4. A symmetrical clamp for preventing deformation of thin-walled castings as claimed in claim 3, characterized in that: The input end of the motor (21) is electrically connected to an external power source.

5. A symmetrical clamp for preventing deformation of thin-walled castings as claimed in claim 1, characterized in that: The inner diameter of the right slot (51) is the same as the outer diameter of the right end of the plug post (71).

6. A symmetrical clamp for preventing deformation of thin-walled castings as claimed in claim 1, characterized in that: The length of the inclined block (75) is greater than the inner diameter of the through hole (73).

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