Pneumatic clamp for 45-degree inclined plane machining

Abstract

The utility model discloses a 45-degree inclined plane machining pneumatic clamp which comprises a pedestal, an embedded position and a 45-degree inclined table. The top surface of the pedestal is provided with an embedded position which is formed by a downward recess at a flat plate for embedding a 45-degree connecting piece; a 45-degree inclined table formed by a plane forming a 45-degree included angle with the bottom face of the embedded position is arranged on the side of the embedded position, an inserting hole used for inserting and carrying a folding and inserting rod is formed in the table base, an open groove is formed in the side face of the embedded position to form a pressing groove, an air cylinder is fixed to the table base, and a moving plate of a plate-shaped structure is fixed to the telescopic end of the air cylinder. The moving plate is directly or indirectly connected with the folding and inserting rod, an ejector rod is vertically fixed to the moving plate, an ejector block is arranged at the end of the ejector rod, and when the air cylinder contracts, the ejector block is driven into the pressing groove; the device has the beneficial effects that secondary clamping is not needed, hole location positioning is not needed, and the air cylinder can be prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining fixtures, and particularly relates to a pneumatic fixture for machining a 45-degree inclined surface. Background Art

[0002] like Figure 5 As shown, the 45-degree connector is a connector for some frame structures that need to be installed at 45 degrees. One side of the connector is a 45-degree folded plate 132 that forms a 45-degree angle with the horizontal plane, and the other side is a flat plate 131 that coincides with the horizontal plane. The flat plate 131 is provided with a vertical hole 133 with a threaded hole or a through hole structure, and the 45-degree folded plate 132 is provided with an inclined hole 134 with a threaded hole or a through hole structure. The connection position of the flat plate 131 and the 45-degree folded plate 132 is the angled portion 135.

[0003] Existing fixtures such as the one disclosed in CN205497054U generally clamp the plate-shaped structure on the workpiece and then perform boring operations on the clamped workpiece. Figure 5 When using the 45-degree connector shown in the figure, only the 45-degree folded plate or the flat plate can be clamped respectively, and then the unclamped 45-degree folded plate or the flat plate can be drilled. This process requires clamping the 45-degree connector twice (the clamped part has a limited clamping area, and the clamping mechanism blocks the drilling area, making it inconvenient to process), which wastes work time. In addition, when the clamp clamps the above-mentioned 45-degree connector, the position of the 45-degree connector cannot be located, and subsequent drilling requires hole positioning, which is more time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide a pneumatic clamp for processing a 45-degree inclined surface, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A 45-degree bevel processing pneumatic clamp comprises: a pedestal, an embedded position, and a 45-degree inclined platform; the pedestal is a block-shaped structure, and a flat plate for embedding a 45-degree connecting piece is provided on the top surface of the pedestal to form an embedded position; a plane with a 45-degree angle with the bottom surface of the embedded position is provided on the side of the embedded position to form a 45-degree inclined platform, and the folding and inserting rod is composed of two groups of strips at a 45-degree angle, and a socket for inserting the folding and inserting rod is provided on the pedestal. When the folding and inserting rod is inserted in the socket, the folding and inserting rod The distance from the bottom surface of the embedded position and the minimum distance from the folding rod to the 45-degree inclined platform are respectively consistent with the thickness of the flat plate of the 45-degree connecting part and the thickness of the 45-degree folding plate. A slot is provided on the side of the embedded position to form a clamping groove. A cylinder is fixed on the base, and a moving plate with a plate-like structure is fixed at the telescopic end of the cylinder. The moving plate and the folding rod are directly or indirectly connected. A push rod is vertically fixed on the moving plate, and a push block is provided at the end of the push rod. When the cylinder contracts, the push block is driven into the clamping groove.

[0007] Furthermore, in order to allow the folding rod to retract automatically when encountering a workpiece of unqualified thickness and avoid damage to the cylinder due to shrinkage limit, the folding rod is connected to the moving plate through a retraction mechanism, and the moving plate is provided with a sliding seat, and a sliding column with a rod-shaped structure is slidably fitted in the sliding seat. The sliding column penetrates the moving plate, and the sliding column is located on one side of the folding rod and is connected to the folding rod by a rod seat with a cylindrical structure. The diameter of the rod seat is larger than the diameter of the sliding column, and a spring is provided on the opposite surfaces of the rod seat and the moving plate and is embedded in the outer periphery of the sliding column.

[0008] Furthermore, in order to facilitate the sliding of the moving plate and prevent the cylinder from bearing excessive lateral load, a sliding mechanism is provided under the moving plate, and the sliding mechanism includes: a base plate, a slide rail, a slider, and a mounting plate; the base plate is a plate-like structure, and the bottom of the base plate is flush with the bottom of the base; it is arranged below the moving position of the moving plate, and the moving plate is provided with two groups of slide rails parallel to the moving direction of the moving plate, and each group of slide rails is slidably fitted with a slider, and the two groups of sliders are connected to the lower surface of the moving plate through a mounting plate with a plate structure.

[0009] Furthermore, in order to provide a tighter limiting capability, the number of the sockets is two groups, namely the first side sockets and the second side sockets. The first side sockets and the second side sockets are respectively arranged on both sides of the base, and the second side sockets are arranged on the side of the base close to the moving board.

[0010] Furthermore, in order to provide continuous elastic clamping force when the top block presses the side of the 45-degree connecting piece and protect the 45-degree connecting piece from damage, the clamping mechanism includes: a top block, a rubber pad, a top rod, and reinforcing ribs; a rubber pad made of rubber material is provided at one end of the top block away from the top rod.

[0011] Furthermore, in order to improve the holding strength of the top block, a group of reinforcing ribs are used to reinforce and fix the bottom of the top rod and the moving plate.

[0012] Furthermore, in order to prevent the sliding column from escaping from the sliding seat, the two ends of the spring are respectively connected and fixed to the rod seat and the moving plate. When the spring is not subjected to external force, the sliding column passes through the sliding seat and the sliding column; in this state, the sliding column will be constrained by the elastic force of the spring when sliding in any direction.

[0013] In summary, the utility model has the following beneficial effects:

[0014] ① After clamping, the vertical hole and the inclined hole of the 45-degree connector can be processed at the same time without secondary clamping: by setting up the folding and inserting rod and the clamping mechanism, the cylinder contracts, and the cylinder drives the moving plate, the slide seat, the slide column, and the slider to slide along the slide rail as a whole until the folding and inserting rod is inserted into the second side socket, and then the inserting rod slides along the angle part of the 45-degree connector and continues to be inserted into the first side socket, and then the inserting rod limits the angle part of the 45-degree connector. At this time, the cylinder continues to contract until the pressure is The top block of the tightening mechanism enters into the clamping groove, and the rubber pad at the end of the top block is pressed against the flat side of the 45-degree connector (in this state, the cylinder is at the minimum shortening distance, so it will not cause limit damage to the cylinder); then, under the limiting action of the folding rod and the pressing action of the clamping mechanism, the 45-degree connector is completely fixed and positioned. At this time, a drilling rig or boring machine is used to drill or bore threaded holes in the vertical holes and inclined holes on the fixed and positioned 45-degree connector.

[0015] ② No hole positioning is required during drilling: Because the drilling machine or boring machine for processing the vertical hole 133 and the inclined hole 134 is fixed relative to the base 1, there is no need to perform hole positioning when the relatively fixed 45-degree connecting parts are processed, making the processing simpler and faster.

[0016] ③ It can prevent the cylinder from being damaged: through the establishment of the retraction mechanism, when the thickness of the unprocessed 45-degree connecting part is unqualified or not placed in place, the folding rod cannot pass through the top of the angle part of the 45-degree connecting part. At this time, when the folding rod touches the side of the connecting part, the movement of the folding rod and the sliding column is limited. As the cylinder continues to rotate, the rod seat on the sliding column stops moving, and then the spring between the rod seat and the moving plate will be compressed, avoiding damage to the cylinder due to contraction limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the sliding mechanism in the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model in the clamping state;

[0020] Figure 4It is a schematic diagram of the top surface structure of the utility model in the clamping state;

[0021] Figure 5 This is a structural view of an existing 45-degree connector in the background technology;

[0022] In the figure, 1, base; 2, embedded position; 3, 45-degree inclined platform; 4, first side socket; 5, second side socket; 6, folding and inserting rod; 7, retracting mechanism; 8, clamping mechanism; 9, sliding mechanism; 10, moving plate; 11, cylinder; 12, clamping groove; 13, 45-degree connecting piece; 71, sliding seat; 72, sliding column; 73, rod seat; 74, spring; 81, top block; 82, rubber pad; 83, top rod; 84, reinforcing rib; 91, bottom plate; 92, sliding rail; 93, slider; 94, mounting plate; 131, flat plate; 132, 45-degree folding plate; 133, vertical hole; 134, inclined hole; 135, corner part. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Example:

[0025] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0026] A 45-degree bevel processing pneumatic clamp comprises: a pedestal 1, an embedded position 2, and a 45-degree inclined platform 3; the pedestal 1 is a block-shaped structure, and a flat plate 131 for embedding a 45-degree connecting piece 13 is provided on the top surface of the pedestal 1 to form a downward depression at the embedded position 2; a plane with a 45-degree angle with the bottom surface of the embedded position 2 is provided on the side of the embedded position 2 to form a 45-degree inclined platform 3, and the folding and inserting rod 6 is composed of two groups of strips at a 45-degree angle. The pedestal 1 is provided with an insertion hole for inserting the folding and inserting rod 6. When the folding and inserting rod 6 is inserted in the insertion hole, the distance between the folding and inserting rod 6 and the bottom surface of the embedded position 2 is 1 / 4 of the distance between the folding and inserting rod 6 and the bottom surface of the embedded position 2 The minimum distance between the folding rod 6 and the 45-degree inclined platform 3 is consistent with the thickness of the flat plate 131 of the 45-degree connecting piece 13 and the thickness of the 45-degree folding plate 132. A groove is provided on the side of the embedded position 2 to form a clamping groove 12. A cylinder 11 is fixed on the base 1. A moving plate 10 with a plate-like structure is fixed to the telescopic end of the cylinder 11. The moving plate 10 and the folding rod 6 are directly or indirectly connected. A push rod 83 is vertically fixed on the moving plate 10. A push block 81 is provided at the end of the push rod 83. When the cylinder 11 contracts, the push block 81 is driven into the clamping groove 12.

[0027] In order to allow the folding rod 6 to retract automatically when encountering a workpiece with unqualified thickness, thereby preventing the cylinder 11 from being damaged due to the shrinkage limit, the folding rod 6 is connected to the moving plate 10 through a retraction mechanism 7. A sliding seat 71 is provided on the moving plate 10. A rod-shaped sliding column 72 is slidably fitted in the sliding seat 71. The sliding column 72 penetrates the moving plate 10. The sliding column 72 is located on one side of the folding rod 6 and is connected to the folding rod 6 by a rod seat 73 with a cylindrical structure. The diameter of the rod seat 73 is larger than the diameter of the sliding column 72. A spring 74 is provided on the opposite surface of the rod seat 73 and the moving plate 10 and is embedded in the outer periphery of the sliding column 72.

[0028] In order to facilitate the sliding of the moving plate 10 and prevent the cylinder 11 from bearing too much lateral load, a sliding mechanism 9 is provided under the moving plate 10, and the sliding mechanism 9 includes: a base plate 91, a slide rail 92, a slider 93, and a mounting plate 94; the base plate 91 is a plate-like structure, and the bottom of the base plate 91 is flush with the bottom of the base 1; it is arranged below the moving position of the moving plate 10, and the moving plate 10 is provided with two groups of slide rails 92 parallel to the moving direction of the moving plate 10, and each group of slide rails 92 is slidably matched with a slider 93, and the two groups of sliders 93 are connected to the lower surface of the moving plate 10 through a mounting plate 94 with a plate structure.

[0029] In order to provide a tighter limiting capability, the number of the sockets is two groups, namely the first side socket 4 and the second side socket 5. The first side socket 4 and the second side socket 5 are respectively arranged on both sides of the base 1, and the second side socket 5 is arranged on the side of the base 1 close to the moving plate 10.

[0030] In order to provide continuous elastic clamping force when the top block 81 presses the side of the 45-degree connector 13 and protect the 45-degree connector 13 from damage, the clamping mechanism 8 includes: a top block 81, a rubber pad 82, a top rod 83, and a reinforcing rib 84; a rubber pad 82 made of rubber material is provided at one end of the top block 81 away from the top rod 83.

[0031] In order to improve the holding strength of the top block 81 , a group of reinforcing ribs 84 are used to reinforce and fix the bottom of the top rod 83 and the moving plate 10 .

[0032] In order to prevent the sliding column 72 from escaping from the sliding seat 71, the two ends of the spring 74 are respectively connected and fixed to the rod seat 73 and the moving plate 10. When the spring 74 is not subjected to external force, the sliding column 72 passes through the sliding seat 71 and the sliding column 72; in this state, the sliding column 72 will be constrained by the elastic force of the spring 74 when sliding in any direction.

[0033] Brief description of the usage process:

[0034] When using, Figure 1As shown, the unprocessed flat plate 131 of the 45-degree connecting member 13 is placed in the embedded position 2 of the pedestal 1, so that the bottom of the 45-degree folding plate 132 of the 45-degree connecting member 13 contacts the surface of the 45-degree inclined platform 3. At this time, the cylinder 11 is connected to an external air circuit control system, and the air circuit control system controls the cylinder 11 to contract. The cylinder 11 drives the moving plate 10, the slide seat 71, the slide column 72, and the slide block 93 to slide along the slide rail 92 as a whole until the folding rod 6 is inserted into The second side plug hole 5, the rod 6 slides along the angled portion 135 of the 45-degree connecting piece 13, and continues to be inserted into the first side plug hole 4, and then the rod 6 limits the angled portion 135 of the 45-degree connecting piece 13. At this time, the cylinder 11 continues to contract until the top block 81 of the clamping mechanism 8 enters the clamping groove 12, and the rubber pad 82 at the end of the top block 81 presses against the side of the flat plate 131 of the 45-degree connecting piece 13 (the cylinder 11 is in the most closed state at this time). The distance is shortened to a small extent, so the limit of the cylinder will not be damaged); then, under the limit action of the folding rod 6 and the pressing action of the clamping mechanism 8, the 45-degree connecting piece 13 is completely fixed. At this time, the hole processing equipment is used to drill or bore the vertical hole 133 and the inclined hole 134 on the fixed 45-degree connecting piece 13. When processing the inclined hole 134, it is only necessary to fix a drill or boring machine with a drill bit and the inclined hole 134 concentric with the base 1 (because the present application is to protect the pneumatic clamp, the setting method and structure of the drilling machine and the boring machine are omitted here). After the processing is completed, the cylinder 11 is controlled to extend and reset until the folding rod 6 is disengaged from the top of the 45-degree connecting piece 13, and the limit of the 45-degree connecting piece 13 is cancelled. At the same time, the clamping mechanism 8 moves accordingly, cancels the clamping of the 45-degree connecting piece 13, and the processed 45-degree connecting piece 13 can be removed.

[0035] When the thickness of the unprocessed 45-degree connecting piece 13 is unqualified or not placed in place, the folding rod 6 cannot pass through the corner portion 135 of the 45-degree connecting piece 13. At this time, when the folding rod 6 contacts the side of the connecting piece 13, the movement of the folding rod 6 and the sliding column 72 is limited. As the cylinder 11 continues to contract, the rod seat 73 on the sliding column 72 stops moving, and then the spring 74 between the rod seat 73 and the moving plate 10 will be compressed to prevent the cylinder 11 from being damaged due to contraction limitation. At this time, after the operator causes the spring 74 to contract, the cylinder 11 is controlled to extend again, and the relative position between the rod seat 73 and the moving plate 10 is reset under the action of the spring. At this time, the 45-degree connecting piece 13 is adjusted or replaced, and the cylinder 11 is started to contract again to complete its clamping operation.

[0036] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pneumatic fixture for 45-degree bevel processing, comprising: A pedestal (1), an embedded position (2), a 45-degree inclined platform (3), a folding and inserting rod (6), and a clamping mechanism (8); characterized in that: the pedestal (1) is a block-shaped structure, and the top surface of the pedestal (1) is provided with a flat plate for embedding a 45-degree connecting piece, which is recessed downward to form an embedded position (2); a plane is provided on the side of the embedded position (2) and is at an angle of 45 degrees to the bottom surface of the embedded position (2) to form a 45-degree inclined platform (3), and the folding and inserting rod (6) is composed of two groups of strips at a 45-degree angle, and a socket for inserting the folding and inserting rod (6) is provided on the pedestal (1), and when the folding and inserting rod (6) is inserted in the socket, the folding and inserting rod (6) is 1.5 meters away from the bottom surface of the embedded position (2). The distance between the folding rod (6) and the 45-degree inclined platform (3) is respectively consistent with the thickness of the flat plate of the 45-degree connecting piece and the thickness of the 45-degree folding plate. A groove is provided on the side of the embedded position (2) to form a clamping groove (12). A cylinder (11) is fixed on the base (1). A moving plate (10) with a plate-like structure is fixed at the telescopic end of the cylinder (11). The moving plate (10) and the folding rod (6) are directly or indirectly connected. A push rod (83) is vertically fixed on the moving plate (10). A push block (81) is provided at the end of the push rod (83). When the cylinder (11) contracts, the push block (81) is driven into the clamping groove (12).

2. A 45-degree bevel processing pneumatic fixture according to claim 1, characterized in that: The folding rod (6) is connected to the moving plate (10) through a retracting mechanism (7). The moving plate (10) is provided with a sliding seat (71). A rod-shaped sliding column (72) is slidably fitted in the sliding seat (71). The sliding column (72) penetrates the moving plate (10). The sliding column (72) is located on one side of the folding rod (6) and is connected to the folding rod (6) by a rod seat (73) with a cylindrical structure. The diameter of the rod seat (73) is larger than the diameter of the sliding column (72). A spring (74) is provided on the opposite surfaces of the rod seat (73) and the moving plate (10) and is embedded in the outer periphery of the sliding column (72).

3. A 45-degree bevel processing pneumatic fixture according to claim 1, characterized in that: A sliding mechanism (9) is provided below the moving plate (10), and the sliding mechanism (9) comprises: a base plate (91), a slide rail (92), a slider (93), and a mounting plate (94); the base plate (91) is a plate-like structure, and the bottom of the base plate (91) is flush with the bottom of the pedestal (1); it is arranged below the moving position of the moving plate (10), and the moving plate (10) is provided with two groups of slide rails (92) parallel to the moving direction of the moving plate (10), and each group of slide rails (92) is slidably matched with a slider (93), and the two groups of sliders (93) are connected to the lower surface of the moving plate (10) through a mounting plate (94) of a plate structure.

4. A 45-degree bevel processing pneumatic fixture according to claim 1, characterized in that: The number of the sockets is two groups, namely, first side sockets (4) and second side sockets (5), and the first side sockets (4) and the second side sockets (5) are respectively arranged on both sides of the pedestal (1), wherein the second side sockets (5) are arranged on a side of the pedestal (1) close to the moving plate (10).

5. The 45-degree bevel processing pneumatic fixture according to claim 1, characterized in that: The clamping mechanism (8) comprises: a top block (81), a rubber pad (82), a top rod (83), and a reinforcing rib (84); a rubber pad (82) made of rubber material is provided at one end of the top block (81) away from the top rod (83).

6. A 45-degree bevel processing pneumatic fixture according to claim 1, characterized in that: A group of reinforcing ribs (84) are used to reinforce and fix the lower part of the top rod (83) and the moving plate (10).

7. A 45-degree bevel processing pneumatic fixture according to claim 2, characterized in that: The two ends of the spring (74) are respectively connected and fixed to the rod seat (73) and the moving plate (10). When the spring (74) is not subjected to external force, the sliding column (72) passes through the sliding seat (71) and the sliding column (72); in this state, the sliding column (72) will be constrained by the elastic force of the spring (74) when sliding in any direction.

Images