Mistake-proof clamping device for bracket machining

Abstract

The utility model discloses an error-proofing clamping device for bracket processing, which comprises a fixed bottom plate, a bottom supporting block is fixed on the top surface of the fixed bottom plate, and a V-shaped part at the bottom of a bracket to be processed is pressed against the bottom supporting block; end supporting blocks are fixed to the positions, on the right side of the bottom supporting block, of the front portion and the rear portion of the top face of the fixed bottom plate correspondingly, horizontal extending parts are formed on the front side wall and the rear side wall of a horizontal plate part of the support correspondingly, and protruding parts which have semicircular sections and extend front and back are formed on the bottom faces of the horizontal extending parts; a V-shaped inserting groove extending downwards is formed in the top face of the end supporting block. The horizontal extending parts are formed on the front side wall and the rear side wall of the horizontal plate part of the support, and then the horizontal extending parts are clamped and fixed through the pressing block and the end supporting block of the first lever oil cylinder, so that the horizontal extending parts are fixed firmly and stably, a tool can move left and right on the horizontal plate part and cannot interfere with other parts, normal machining is guaranteed, and the machining efficiency is improved. The problems of wrong processing and the like are avoided, and the mistake-proofing effect is good.

Description

Technical Field:

[0001] The utility model relates to the technical field of metal machining equipment, and more specifically, to an anti-mistake clamping device for bracket machining. Background Art:

[0002] For existing metal brackets, as Figure 1 shown, the blank needs to be machined into the structure as Figure 1 shown. It is necessary to drill holes in the left and right parts of the front part of its horizontal plate. Before drilling, it needs to be clamped and fixed. In the existing clamping method, a pressing block of an oil cylinder is used to press and fix it in the middle of the front part of the horizontal plate. In this clamping method, since it is pressed and fixed in the middle of the front part of the horizontal plate, when drilling the left or right part of the front part of the horizontal plate, the horizontal plate is likely to tilt, thus affecting the machining effect. Moreover, when the tool moves from one side to the other side, it will be interfered by the pressing block of the oil cylinder, causing the pressing block to be damaged, resulting in wrong machining and affecting the overall machining effect. Content of the Utility Model:

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an anti-mistake clamping device for bracket machining. It forms horizontal extension parts on the front side wall and the rear side wall of the horizontal plate part of the bracket, and then clamps and fixes it through the pressing block and the end support block of the first lever oil cylinder, making its fixation firm and stable, enabling the tool to move left and right on the horizontal plate part without interference with other parts, ensuring normal machining and not causing problems such as wrong machining, and having a good anti-mistake effect.

[0004] The solution of the utility model to solve the above technical problems is:

[0005] An anti-mistake clamping device for bracket machining, including a fixed bottom plate. A bottom support block is fixed on the top surface of the fixed bottom plate, and the V-shaped part at the bottom of the bracket to be machined is pressed against the bottom support block.

[0006] End support blocks are fixed on the front and rear parts of the top surface of the fixed bottom plate on the right side of the bottom support block. Horizontal extension parts are formed on both the front side wall and the rear side wall of the horizontal plate part of the bracket. A convex part extending forward and backward with a semicircular cross-section is formed on the bottom surface of the horizontal extension part. A V-shaped slot extending downward is formed on the top surface of the end support block. The convex part is inserted into the corresponding V-shaped slot, and the bottom arc wall surface of the convex part is pressed against the left and right side walls of the corresponding V-shaped slot.

[0007] A first lever oil cylinder is fixed on the top surface of the fixed bottom plate at one side of the end support block, and the bottom surface of the end of the pressing block of the first lever oil cylinder is pressed against the top surface of the corresponding horizontal extension part.

[0008] The bottom surface of the end of the pressing block of the first lever oil cylinder is formed with a screwed hole extending upward, the screw part of the pressing bolt is screwed in the screwed hole, and the rotating part at the bottom of the pressing bolt presses against the top surface of the corresponding horizontally extending part.

[0009] The bottom surface of the rotating part at the bottom of the pressing bolt is formed with a reticulated groove.

[0010] On the top surface of the fixed bottom plate on one side of the bottom support block, a main lever oil cylinder is fixed. The bottom surface of the end of the main pressing block of the main lever oil cylinder presses against the middle part of the left part of the horizontal plate part of the bracket, and an upper convex positioning part is formed on the top surface. The top surface of the upper convex positioning part is a plane, and the bottom surface of the end of the main pressing block presses against the top surface of the upper convex positioning part. The bottom surface of the end of the main pressing block faces the first V-shaped slot formed in the middle of the top surface of the bottom support block.

[0011] Through the three-point pressing of the pressing blocks of the two first lever oil cylinders and the main pressing block of the main lever oil cylinder, the stable and firm pressing and fixing of the bracket are ensured.

[0012] The middle part of the top surface of the bottom support block is formed with a first V-shaped slot. The bottom surface of the V-shaped part is an arc-shaped wall surface, and its front and rear side walls press against the front and rear inner side walls of the first V-shaped slot.

[0013] The middle bottom end of the first V-shaped slot is formed with a telescopic through hole extending downward. The bottom end of the telescopic through hole communicates with the upper vertical hole formed in the middle of the bottom surface of the bottom support block. The inner diameter of the upper vertical hole is larger than that of the telescopic through hole. The bottom end of the upper vertical hole communicates with the corresponding first oil inlet hole formed in the fixed bottom plate;

[0014] The main ejector rod is inserted into the telescopic through hole and the upper vertical hole. The top of the main ejector rod extends out of the top end of the telescopic through hole and is located in the first V-shaped slot. A radially extending edge is formed on the outer side wall of the lower part of the main ejector rod. The radially extending edge is located in the upper vertical hole. The outer side wall of the radially extending edge is close to the inner side wall of the upper vertical hole. A first sealing ring is nested in the annular groove formed on the outer side wall of the radially extending edge. The outer side wall of the first sealing ring is tightly attached to the inner side wall of the upper vertical hole.

[0015] The middle bottom end of the V-shaped slot is formed with a stepped through hole extending downward. The upper part of the stepped through hole is a small-diameter hole section, and the lower part is a large-diameter hole section. The bottom end of the stepped through hole communicates with the corresponding second oil inlet hole formed in the fixed bottom plate;

[0016] The first ejector rod is inserted into the stepped through-hole. The top of the first ejector rod extends out of the top end of the stepped through-hole and is located in the corresponding V-shaped slot. A limiting radially extending edge is formed on the outer side wall of the lower part of the first ejector rod. The limiting radially extending edge is located in the large-diameter hole section of the stepped through-hole. A second sealing ring is nested in the annular groove formed on the outer side wall of the limiting radially extending edge. The outer side wall of the second sealing ring is pressed against the inner side wall of the large-diameter hole section of the stepped through-hole.

[0017] The prominent effect of the present utility model is:

[0018] Horizontal extension parts are formed on the front side wall and the rear side wall of the horizontal plate part of the bracket. Subsequently, it is clamped and fixed by the pressing block and the end support block of the first lever oil cylinder, making its fixation firm and stable, enabling the tool to move left and right on the horizontal plate part without interference with other parts, ensuring normal processing and preventing problems such as incorrect processing, and having a good anti-mistake effect. Description of the drawings:

[0019] Figure 1 is a schematic structural diagram of the processed bracket;

[0020] Figure 2 is a partial structural schematic diagram when the present utility model is installed on the rotating disk of the machining equipment;

[0021] Figure 3 is Figure 2 a partial enlarged view of;

[0022] Figure 4 is Figure 2 a partial structural schematic diagram of the angle change of;

[0023] Figure 5 is a partial structural schematic diagram of the convex part and the V-shaped slot of the present utility model;

[0024] Figure 6 is a partial structural schematic diagram of the present utility model with the bracket not clamped at one of the processing stations;

[0025] Figure 7 is Figure 6 a partial top view of;

[0026] Figure 8 is a partial cross-sectional view of the V-shaped slot;

[0027] Figure 9 is a partial cross-sectional view of the first V-shaped slot;

[0028] Figure 10 is a partial structural schematic diagram between the bracket and the bottom support block;

[0029] Figure 11 is a partial structural schematic diagram with components such as the main pressing block removed. Detailed implementation manners:

[0030] In an embodiment, as shown in Figures 1 to 11 a clamping device for preventing errors in bracket processing, which includes a fixed bottom plate 10. Two processing stations are provided on the top surface of the fixed bottom plate 10. A bottom support block 20 is fixed in each processing station. The V-shaped part 101 at the bottom of the bracket 100 to be processed is pressed against the bottom support block 20. On the top surface of the fixed bottom plate 10 on the front and rear sides of the bottom support block 20, two side protection blocks are fixed. The corresponding parts on the front side wall and the rear side wall of the horizontal plate part of the bracket 100 are close to the inner side walls of the corresponding side protection blocks.

[0031] The structure of the left processing station is that on the front and rear parts of the top surface of the fixed bottom plate 10 on the right side of the bottom support block 20, end support blocks 30 are fixed. Horizontal extension parts 102 are formed on the front side wall and the rear side wall of the horizontal plate part of the bracket 100. A convex part 103 extending forward and backward with a semicircular cross-section is formed on the bottom surface of the horizontal extension part 102. A downward-extending V-shaped slot 31 is formed on the top surface of the end support block 30. The convex part 103 is inserted into the corresponding V-shaped slot 31. The bottom arc wall surface of the convex part 103 is pressed against the left and right side walls of the corresponding V-shaped slot 31. The bottom arc wall surface of this convex part 103 is pressed and fixed with the left and right side walls of the corresponding V-shaped slot 31, realizing the positioning of the convex part 103, and thus realizing the position positioning of the bracket 100.

[0032] On the top surface of the fixed bottom plate 10 at one side of the end support block 30, a first lever oil cylinder 40 is fixed. The bottom surface of the end of the pressing block 41 of the first lever oil cylinder 40 is pressed against the top surface of the corresponding horizontal extension part 102.

[0033] A screw connection hole extending upward is formed on the bottom surface of the end of the pressing block 41 of the first lever oil cylinder 40. The screw part of the pressing bolt 42 is screwed into the screw connection hole. The rotating part at the bottom of the pressing bolt 42 is pressed against the top surface of the corresponding horizontal extension part 102. By pressing the bottom surface of the rotating part of the pressing bolt 42 against the top surface of the corresponding horizontal extension part 102, and the bottom arc wall surface of the convex part 103 is pressed against the left and right side walls of the corresponding V-shaped slot 31, the left and right sides of the bracket 100 are fixed.

[0034] A reticulated groove is formed on the bottom surface of the rotating part at the bottom of the pressing bolt 42. The reticulated groove is to increase the friction of the bottom surface of the rotating part at the bottom of the pressing bolt 42, improve the anti-slip effect, and ensure that it will not move when pressing against the top surface of the corresponding horizontal extension part 102.

[0035] On the top surface of the fixed base plate 10 on one side of the bottom support block 20, a main lever oil cylinder 50 is fixed. The bottom surface of the end of the main pressing block 51 of the main lever oil cylinder 50 presses against the middle top surface of the left part of the horizontal plate part of the bracket 100, where an upper convex positioning part 104 is formed. The top surface of the upper convex positioning part 104 is a plane, and the bottom surface of the end of the main pressing block 51 presses against the top surface of the upper convex positioning part 104. The bottom surface of the end of the main pressing block 51 faces a first V-shaped slot 21 formed in the middle of the top surface of the bottom support block 20.

[0036] A first V-shaped slot 21 is formed in the middle of the top surface of the bottom support block 20. The bottom surface of the V-shaped part 101 is an arc-shaped wall surface, and its front and rear side walls press against the front and rear inner side walls of the first V-shaped slot 21.

[0037] It realizes the positioning of the lower part of the bracket 100 by pressing the front and rear side walls of the V-shaped part 101 against the front and rear inner side walls of the first V-shaped slot 21. At the same time, side limit blocks are fixed on the top surfaces of the fixed base plates 10 on the left and right sides of the bottom support block 20. Extension parts are formed on the opposite wall surfaces of the side limit blocks, and the end surfaces of the extension parts are close to or against the left and right sides of the V-shaped part 101 to realize the left and right limits of the V-shaped part 101. Then, by the downward pressing of the main pressing block 51 of the main lever oil cylinder 50, the bottom surface of the main pressing block 51 presses against the top surface of the corresponding upper convex positioning part 104 to realize pressing. It realizes three-point pressing through the downward pressing of the pressing blocks 41 of the two first lever oil cylinders 40 and the main pressing block 51 of the main lever oil cylinder 50. According to the principle of determining a plane by three points, it presses the bracket 100 horizontally and stably, and the pressing and positioning are firm, making the subsequent processing stable and convenient.

[0038] Moreover, since the pressing blocks 41 of the two first lever oil cylinders 40 press against the horizontal extension parts 102 formed on the front side wall and the rear side wall of the horizontal plate part of the bracket 100, and the subsequent processing requires cutting, it does not affect the processing of the horizontal plate part of the bracket 100, enabling the tool to move left and right on the horizontal plate part without interference with other parts, ensuring normal processing and preventing problems such as incorrect processing, and having a good anti-error effect.

[0039] The structure of the processing station on the right side is mirror-symmetrical to that on the left side and will not be elaborated here. Therefore, it can clamp two brackets 100 for processing simultaneously.

[0040] Furthermore, a telescopic through hole 22 extending downward is formed at the middle bottom end of the first V-shaped slot 21. The bottom end of the telescopic through hole 22 communicates with an upper vertical hole 23 formed in the middle of the bottom surface of the bottom support block 20. The inner diameter of the upper vertical hole 23 is larger than that of the telescopic through hole 22. The bottom end of the upper vertical hole 23 communicates with a corresponding first oil inlet hole 1 formed in the fixed base plate 10;

[0041] The main ejector rod 3 is inserted into the telescopic through hole 22 and the upper vertical hole 23. The top of the main ejector rod 3 extends out of the top end of the telescopic through hole 22 and is located in the first V-shaped slot 21. A radially extending edge is formed on the outer side wall of the lower part of the main ejector rod 3. The radially extending edge is located in the upper vertical hole 23. The outer side wall of the radially extending edge is close to the inner side wall of the upper vertical hole 23. A first sealing ring 4 is nested in the annular groove formed on the outer side wall of the radially extending edge. The outer side wall of the first sealing ring 4 is closely attached to the inner side wall of the upper vertical hole 23.

[0042] A stepped through hole 32 extending downward is formed at the bottom end of the middle part of the V-shaped slot 31. The upper part of the stepped through hole 32 is a small-diameter hole section, and the lower part is a large-diameter hole section. The bottom end of the stepped through hole 32 communicates with the corresponding second oil inlet hole 5 formed in the fixed bottom plate 10.

[0043] The first ejector rod 6 is inserted into the stepped through hole 32. The top of the first ejector rod 6 extends out of the top end of the stepped through hole 32 and is located in the corresponding V-shaped slot 31. A limiting radially extending edge is formed on the outer side wall of the lower part of the first ejector rod 6. The limiting radially extending edge is located in the large-diameter hole section of the stepped through hole 32. A second sealing ring 7 is nested in the annular groove formed on the outer side wall of the limiting radially extending edge. The outer side wall of the second sealing ring 7 is pressed against the inner side wall of the large-diameter hole section of the stepped through hole 32.

[0044] With the above structure, when the processing is completed, only by injecting oil into the first oil inlet hole 1 and the second oil inlet hole 5, the corresponding first ejector rod 6 and the main ejector rod 3 can be lifted upward, and the convex part 103 of the horizontal extension part 102 of the corresponding bracket 100 can be ejected from the V-shaped slot 31, and the V-shaped part 101 of the bracket 100 can be ejected from the first V-shaped slot 21, which is convenient for unloading.

[0045] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An anti-mistake clamping device for stent processing, including a fixed bottom plate (10), characterized in that: A bottom support block (20) is fixed on the top surface of the fixed bottom plate (10), and the V-shaped part (101) at the bottom of the bracket (100) to be processed is pressed against the bottom support block (20). End support blocks (30) are fixed on the front and rear parts of the top surface of the fixed bottom plate (10) on the right side of the bottom support block (20). Horizontal extension parts (102) are formed on the front side wall and the rear side wall of the horizontal plate part of the bracket (100). A convex part (103) extending forward and backward with a semicircular cross-section is formed on the bottom surface of the horizontal extension part (102). A V-shaped slot (31) extending downward is formed on the top surface of the end support block (30). The convex part (103) is inserted into the corresponding V-shaped slot (31), and the bottom arc wall surface of the convex part (103) is pressed against the left and right side walls of the corresponding V-shaped slot (31). A first lever oil cylinder (40) is fixed on the top surface of the fixed bottom plate (10) at one side of the end support block (30). The bottom surface of the end of the pressing block (41) of the first lever oil cylinder (40) is pressed against the top surface of the corresponding horizontal extension part (102).

2. The anti-misoperation clamping device for bracket processing according to claim 1, characterized in that: A screw hole extending upward is formed on the bottom surface of the end of the pressing block (41) of the first lever oil cylinder (40). The screw part of the pressing bolt (42) is screwed into the screw hole, and the rotating part at the bottom of the pressing bolt (42) is pressed against the top surface of the corresponding horizontal extension part (102).

3. The anti-misoperation clamping device for bracket processing according to claim 2, characterized in that: A reticulated groove is formed on the bottom surface of the rotating part at the bottom of the pressing bolt (42).

4. The anti-misoperation clamping device for bracket processing according to claim 1, characterized in that: A main lever oil cylinder (50) is fixed on the top surface of the fixed bottom plate (10) on one side of the bottom support block (20). The bottom surface of the end of the main pressing block (51) of the main lever oil cylinder (50) is pressed against a raised positioning part (104) formed in the middle of the left part of the horizontal plate part of the bracket (100). The top surface of the raised positioning part (104) is a plane, and the bottom surface of the end of the main pressing block (51) is pressed against the top surface of the raised positioning part (104). The bottom surface of the end of the main pressing block (51) faces a first V-shaped slot (21) formed in the middle of the top surface of the bottom support block (20).

5. The anti-misoperation clamping device for bracket processing according to claim 1, wherein: A first V-shaped slot (21) is formed in the middle of the top surface of the bottom support block (20). The bottom surface of the V-shaped part (101) is an arc wall surface, and its front and rear side walls are pressed against the front and rear inner side walls of the first V-shaped slot (21).

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