A drilling fixture for round steel blanks

Abstract

This invention relates to the field of steel processing technology and discloses a drilling fixture for round steel blanks, including a base, a lower clamping frame fixed to the upper end of the base, and an upper clamping frame for cooperation at the upper end of the lower clamping frame; multiple sets of vertical telescopic rods are provided on the inner side of the lower clamping frame for support; the upper clamping frame is divided into multiple sets of downward-facing V-shaped blocks, and hollow limiting tubes are fixed between the V-shaped blocks. The multiple sets of hollow limiting tubes are interconnected, and water outlets communicating with the interior are opened on the outer wall of the hollow limiting tubes. Water flows out of the water outlets for cooling, and a water inlet is opened at the upper end of one of the V-shaped blocks. This invention, by setting a cloth layer, causes the driving collar to move upward, compressing the compression spring, ensuring that the round steel blank is fixed and the cloth layer is adhered to its outer wall. The circular openings in the cloth layer enable drilling, preventing the generated chips from scratching the round steel blank during rotation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel processing, in particular to a round steel blank drilling clamp. BACKGROUND

[0002] When the round steel blank needs to be processed, a drilling machine is often used to drill the round steel blank. In the process of processing, the round steel blank needs to be clamped and fastened to avoid movement during drilling.

[0003] Although there are clamps that can clamp round objects, but in the process of drilling, it is inevitable to produce debris, so the debris moves outward, and there is a chance of winding around the drill bit, which grinds the surface of the round steel blank as the drill bit rotates, causing marks on the surface of the round steel blank, and even affecting the precision of the round steel blank. Therefore, a clamp that can clamp and reduce marks is proposed. SUMMARY

[0004] The purpose of the present application is to provide a round steel blank drilling clamp to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a round steel blank drilling clamp, comprising a base, the lower clamping frame is fixed on the upper end of the base, the upper clamping frame is provided on the upper end of the lower clamping frame for cooperation;

[0006] The inner side of the lower clamping frame is provided with a plurality of vertical telescopic vertical rods, which are used for support;

[0007] The upper clamping frame is divided into a plurality of downward V-shaped blocks, the hollow limiting tube is fixed between the V-shaped blocks, a plurality of hollow limiting tubes are connected, the water outlet is provided on the outer wall of the hollow limiting tube and is connected with the inside, the water outlet is used for cooling, and the upper end of one of the V-shaped blocks is provided with a water inlet;

[0008] The lower end of the hollow limiting tube is provided with a cloth layer extruded on the outer wall of the round steel blank, which is used to block the cutting chips and the round steel blank grinding.

[0009] Preferably, the lower clamping frame is also V-shaped, the upper end of the lower clamping frame is fixed with a plurality of smooth outer wall limiting metal rods, the limiting metal rods extend into the interior of the upper clamping frame, and the two are in close contact, the limiting metal rods are used for supporting and limiting, avoiding dislocation of the clamping frame, and perfect cooperation between the lower clamping frame and the upper clamping frame during fixing.

[0010] Preferably, the lower clamping frame is fixed with a buckle one outside, the inside of the buckle one is provided with a screw thread, the outer wall of the upper clamping frame is fixed with a buckle two, the inside of the buckle two is rotatably installed with a bolt, the bolt can be matched with the buckle one, so as to be fixed.

[0011] Preferably, the lower end of the lower clamping frame is fixed with a fixed box, the inner wall of the lower end of the lower clamping frame is fixedly embedded with a metal thick plate, the upper end of the metal thick plate is provided with a plurality of metal round openings arranged in groups, the telescopic vertical rod is inserted into the metal round opening, the upper end of the telescopic vertical rod is rounded, the lower end of the telescopic vertical rod is fixed with a reset spring, the lower end of the reset spring is fixed with the inner wall of the fixed box, the reset spring upwardly pushes the telescopic vertical rod, and the telescopic vertical rod can be matched with the object at the upper end.

[0012] The outer wall of the telescopic vertical rod is provided with a plurality of vertically arranged through limiting openings, one group of the through limiting openings is inserted with a limiting plug rod inside, and the plug rod is used for limiting.

[0013] Preferably, the shape of the through limiting opening is arc-shaped at the upper end and vertical at both sides and the lower end, so as to facilitate the insertion of the plug rod, and the plug rod can also be inserted under the action of the telescopic vertical rod which is uneven in height, the cross section of the plug rod is semicircular, the lower end can be matched with the metal thick plate at the lower end, and the plug rod is fixed.

[0014] Preferably, the upper end of the hollow limiting tube is provided with a rubber belt, the lower end of the rubber belt is fixed with a rubber plug, and the rubber plug is plugged into the water outlet, so as to facilitate the taking out and installation of the rubber plug.

[0015] The outer wall of the hollow limiting tube is sleeved with a limiting sleeve, and the rubber plug moves upward out of the part sleeved with the limiting sleeve.

[0016] The lower end of the limiting sleeve is fixed with a hollow vertical pipe, the lower end of the hollow vertical pipe is closed and outwardly expanded, the outer wall of the hollow vertical pipe is sleeved with an extrusion spring, the upper end of the extrusion spring is in contact with the driving sleeve ring, one side of the driving sleeve ring is fixed with a horizontal rod, and the outer wall of the horizontal rod is fixed with a cloth layer.

[0017] Preferably, the limiting sleeve and the hollow limiting tube are extruded, the inside of the limiting sleeve is provided with an annular cavity, the inside of the annular cavity is coincided with one water outlet, and water can move into the hollow vertical pipe along the annular cavity.

[0018] The outer wall of the hollow vertical pipe is provided with a pinhole for extruding water, which is used for wetting the cloth layer.

[0019] Preferably, the cloth layer is provided with a round opening at the upper end, and the outer side of the round opening is provided with an extension slot.

[0020] The inner wall of the round opening is fixed with a rubber ring, the inner side of the rubber ring is provided with an arc-shaped opening, the rubber ring can be expanded, a metal ring is arranged in the arc-shaped opening, and the metal ring is provided with a plurality of metal rings which are arranged in a ladder shape from large to small.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] (1) The cloth layer is arranged, the driving sleeve ring moves upward to compress the compression spring, the round steel blank is fixed, and the cloth layer is attached to the outer wall, the round opening in the cloth layer can realize drilling, and the generated cutting scraps are prevented from scratching the round steel blank during rotation.

[0023] (2) The hollow vertical pipe is arranged to discharge water, the rubber plug can be adjusted, the limiting sleeve can slide to adjust the position, the outer wall of the hollow vertical pipe discharges water, the cloth layer can be wetted, and the cloth layer is prevented from being damaged due to high drilling temperature.

[0024] (3) The round opening can be adjusted, the metal rings with different sizes are arranged in the inner side of the rubber ring, the size of the round opening is adjusted, the cloth layer is prevented from being damaged during drilling, and the extension slot and the rubber ring can expand the round opening.

[0025] (4) The telescopic vertical rod is compressed, the telescopic vertical rod can be downwardly extruded and attached to the irregular round steel blank, the telescopic vertical rod is limited, the irregular round steel blank is attached, and the movement during drilling is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 It is a schematic diagram of the lower clamping frame structure of the present application;

[0028] Figure 3 It is a schematic diagram of the telescopic vertical rod structure of the present application;

[0029] Figure 4 It is a schematic diagram of the upper clamping frame structure of the present application;

[0030] Figure 5 It is a schematic diagram of the cloth layer and its assembly structure of the present application;

[0031] Figure 6Structure diagram of two sides of cloth layer of the application;

[0032] Figure 7 Structure diagram of partial section of cloth layer of the application.

[0033] In the figure: 1, base; 2, lower clamping frame; 21, metal thick plate; 211, metal round port; 22, fixed box; 23, telescopic vertical rod; 231, through limiting port; 232, inserted rod; 233, reset spring; 24, limiting metal rod; 25, buckle port one; 3, upper clamping frame; 31, hollow limiting tube; 311, water outlet; 312, rubber belt; 313, rubber plug; 32, cloth layer; 321, limiting sleeve; 322, annular cavity; 323, hollow vertical tube; 324, extrusion spring; 325, driving sleeve ring; 326, cross rod; 327, round port; 328, extension strip port; 329, rubber ring; 33, buckle port two; 4, metal ring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0035] Please refer to Figures 1-7 The application provides a technical solution: a round steel blank drilling clamp, which comprises a base 1, a lower clamping frame 2 fixed on the upper end of the base 1, and an upper clamping frame 3 arranged on the upper end of the lower clamping frame 2 and used for cooperation.

[0036] The inner side of the lower clamping frame 2 is provided with a plurality of vertical telescopic vertical rods 23 used for support.

[0037] The upper clamping frame 3 is divided into a plurality of downward V-shaped blocks, the V-shaped blocks are fixed with hollow limiting tubes 31 between the V-shaped blocks, the plurality of hollow limiting tubes 31 are communicatively arranged, the outer wall of the hollow limiting tube 31 is provided with a water outlet 311 communicatively arranged therein, water outlet 311 is used for cooling, and the upper end of one of the V-shaped blocks is provided with a water inlet port.

[0038] The lower end of the hollow limiting tube 31 is provided with a cloth layer 32 extruded on the outer wall of the round steel blank, the cloth layer 32 is used for blocking the cutting chips and grinding the round steel blank, the driving sleeve ring 325 moves upward to compress the extrusion spring 324, so as to fix the round steel blank and adhere the cloth layer 32 to the outer wall thereof, the round port 327 provided on the cloth layer 32 can realize drilling, and avoid that the cutting chips generated scratch the round steel blank due to rotation.

[0039] The lower clamping frame 2 is also V-shaped, and a plurality of smooth outer wall limiting metal rods 24 are fixed to the upper end of the lower clamping frame 2 and extend into the interior of the upper clamping frame 3, and the two are in close contact, and the limiting metal rods are used for supporting and limiting to avoid dislocation of the clamping frame 3 and perfect cooperation of the lower clamping frame 2 and the upper clamping frame 3 during fixing.

[0040] The outer side of the lower clamping frame 2 is fixed with a buckle one 25, the interior of the buckle one 25 is threaded, and the outer wall of the upper clamping frame 3 is fixed with a buckle two 33, and a bolt is rotatably installed in the buckle two 33, and the bolt can be arranged in cooperation with the buckle one 25, so as to be convenient for fixing.

[0041] The lower end of the lower clamping frame 2 is fixed with a fixed box 22, and a metal thick plate 21 is embedded on the inner wall of the lower end of the lower clamping frame 2, a plurality of groups of metal round mouths 211 are arranged on the upper end of the metal thick plate 21, an extension vertical rod 23 is inserted into the metal round mouth 211, the upper end of the extension vertical rod 23 is round, the lower end of the extension vertical rod 23 is fixed with a reset spring 233, the lower end of the reset spring 233 is fixed with the inner wall of the fixed box 22, the reset spring 233 upwardly pushes the extension vertical rod 23, and the extension vertical rod 23 can be in close contact with the object at the upper end;

[0042] A plurality of groups of vertical arrangement through limiting mouths 231 are arranged on the outer wall of the extension vertical rod 23, one group of the through limiting mouths 231 is inserted with a limiting plug rod 232, and the plug rod 232 is used for limiting.

[0043] The shape of the through limiting mouth 231 is arc-shaped at the upper end and vertical at both sides and the lower end, so as to facilitate insertion of the plug rod 232 and also facilitate insertion under the action of the uneven extension vertical rod 23, the cross section of the plug rod 232 is semicircular, the lower end can be in close contact with the metal thick plate 21 at the lower end, and the plug rod 232 is convenient for fixing;

[0044] The extension vertical rod 23 can be downwardly extruded and in close contact with the irregular round steel blank, which is equivalent to limiting the extension vertical rod 23, in close contact with the irregular round steel blank, and reducing movement during drilling.

[0045] The upper end of the hollow limiting tube 31 is provided with a rubber belt 312, the lower end of the rubber belt 312 is fixed with a rubber plug 313, the rubber plug 313 is plugged in the water outlet 311, and the rubber belt 312 is convenient for taking out and installing the rubber plug 313.

[0046] The outer wall of the hollow limiting tube 31 is sleeved with a limiting sleeve 321, and the part of the limiting sleeve 321 is upwardly moved out of the rubber plug 313.

[0047] The lower end of the limiting sleeve 321 is fixed with a hollow vertical pipe 323, the lower end of the hollow vertical pipe 323 is closed and outwardly expanded, the outer wall of the hollow vertical pipe 323 is sleeved with an extrusion spring 324, the hollow vertical pipe 323 is sleeved with a driving sleeve ring 325, the upper end of the driving sleeve ring 325 is in contact with the extrusion spring 324, and the side of the driving sleeve ring 325 is fixed with a cross rod 326, and the outer wall of the cross rod 326 is fixedly provided with the cloth layer 32.

[0048] The inner wall of the limiting sleeve 321 is extruded with the outer wall of the hollow limiting pipe 31, and the inside of the limiting sleeve 321 is provided with an annular cavity 322, and the inside of the annular cavity 322 is coincided with one water outlet 311, so that water can move into the hollow vertical pipe 323 along the annular cavity 322;

[0049] The outer wall of the hollow vertical pipe 323 is provided with a pinhole for extruding water, which is used for wetting the cloth layer 32.

[0050] The upper end of the cloth layer 32 is provided with a circular port 327, and the outer side of the circular port 327 is provided with an extension strip port 328, which is provided on the cloth layer 32 and has an expanding effect, so as to avoid tearing the cloth layer 32;

[0051] The inner wall of the circular port 327 is fixedly provided with a rubber ring 329, the inner side of the rubber ring 329 is provided with an arc-shaped port, the rubber ring 329 can be expanded, and a plurality of metal rings 4 are extruded and sleeved in the arc-shaped port, the plurality of metal rings 4 are arranged in a ladder shape from large to small, and the metal rings 4 can be expanded to separate the rubber ring 329;

[0052] The metal rings 4 with different sizes are clamped on the inner side of the rubber ring 329, the size of the circular port 327 is adjusted, the cloth layer 32 is prevented from being damaged in the drilling process, and the circular port 327 is expanded under the action of the extension strip port 328 and the rubber ring 329.

[0053] In use, the bolt is rotated to cancel the cooperation with the buckle port 25, then the upper clamping frame 3 is lifted upward, the round steel blank is placed on the upper end of the lower clamping frame 2, then the upper clamping frame 3 is cooperated with the lower clamping frame 2, and the bolt is tightened to fix the round steel blank, so as to facilitate drilling;

[0054] In the cooperation of the upper clamping frame 3 and the lower clamping frame 2, the limiting metal rod 24 on the lower clamping frame 2 extends upward to the inside of the upper clamping frame 3, achieving the limiting effect and avoiding deviation. Meanwhile, in the downward movement of the upper clamping frame 3, the cloth layer 32 is extruded with the round steel blank, and with the increase of the extrusion force, the cloth layer 32 is attached to the round steel blank. In order to be attached and fixed, the driving sleeve ring 325 moves upward to compress the extrusion spring 324, ensuring the fixation of the round steel blank and the attachment of the cloth layer 32 on the outer wall. The round hole 327 on the cloth layer 32 can realize drilling, and also avoid the cutting scraps scratching the round steel blank during rotation;

[0055] The water outlet 311 can be blocked by the rubber plug 313, and the position can be adjusted by the limiting sleeve 321 sliding. The water outlet on the outer wall of the hollow vertical pipe 323 can wet the cloth layer 32, avoiding damage to the cloth layer 32 due to high drilling temperature;

[0056] When different size holes are needed, different size metal rings 4 are needed to be clamped on the inside of the rubber ring 329 to adjust the size of the round hole 327, avoiding damage to the cloth layer 32 during drilling. Under the action of the extension strip hole 328 and the rubber ring 329, the round hole 327 can be expanded;

[0057] When drilling irregular round steel blanks, the lower clamping frame 2 is extruded, and the telescopic vertical rod 23 is also extruded. The insertion rod 232 is pulled out, the telescopic vertical rod 23 can be extruded downward and attached to the irregular round steel blank. The insertion rod 232 is inserted, which is equivalent to limiting the telescopic vertical rod 23, and is attached to the irregular round steel blank, reducing the movement during drilling.

[0058] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A round bar blank drilling fixture, characterized by: Including base (1), the lower clamping frame (2) is fixed on the upper end of base (1), and the upper end of lower clamping frame (2) is provided with upper clamping frame (3) for cooperation; The inner side of the lower clamping frame (2) is provided with a plurality of vertical telescopic vertical rods (23), which are used for support; The upper clamping frame (3) is divided into a plurality of downward V-shaped blocks, the V-shaped blocks are fixed with hollow limiting tubes (31) between the V-shaped blocks, a plurality of hollow limiting tubes (31) are communicated, a water outlet (311) is formed in the outer wall of the hollow limiting tube (31) and is communicated with the inside, the water outlet (311) is used for cooling, and the upper end of one of the V-shaped blocks is provided with a water inlet port; The lower end of the hollow limiting tube (31) is provided with a cloth layer (32) extruded on the outer wall of the round steel blank, and the cloth layer (32) is used for blocking the cutting chips and the round steel blank grinding; The upper end of the hollow limiting tube (31) is provided with a rubber belt (312), and the lower end of the rubber belt (312) is fixed with a rubber plug (313), which is plugged in the water outlet (311); The outer wall of the hollow limiting tube (31) is sleeved with a limiting sleeve (321), and the part of the rubber plug (313) is moved upward out of the limiting sleeve (321); The lower end of the limiting sleeve (321) is fixed with a hollow vertical pipe (323), the lower end of the hollow vertical pipe (323) is closed and expands outward, the outer wall of the hollow vertical pipe (323) is sleeved with an extrusion spring (324), the hollow vertical pipe (323) is sleeved with a driving sleeve ring (325), the upper end of the driving sleeve ring (325) is in contact with the extrusion spring (324), one side of the driving sleeve ring (325) is fixed with a horizontal rod (326), and the outer wall of the horizontal rod (326) is fixed with the cloth layer (32). The upper end of the cloth layer (32) is provided with a circular port (327), and the outer side of the circular port (327) is provided with an extension strip port (328) formed on the cloth layer (32); The inner wall of the circular port (327) is fixed with a rubber ring (329), the inner side of the rubber ring (329) is provided with an arc-shaped port, one metal ring (4) is extruded and sleeved in the arc-shaped port, and a plurality of metal rings (4) are provided, and the plurality of metal rings (4) are arranged in a stepped manner from large to small.

2. A round steel blank drilling jig according to claim 1, characterized in that: The lower clamping frame (2) is also V-shaped, and a plurality of limiting metal rods (24) with smooth outer walls are fixed on the upper end of the lower clamping frame (2), the limiting metal rods (24) extend into the inside of the upper clamping frame (3), and the two are arranged in abutting manner.

3. A round steel blank drilling jig according to claim 1, characterized in that: The outer side of the lower clamping frame (2) is fixed with a buckle one (25), the inside of the buckle one (25) has a thread, the outer wall of the upper clamping frame (3) is fixed with a buckle two (33), a bolt is rotatably installed in the buckle two (33), and the bolt can be matched with the buckle one (25).

4. A round steel blank drilling jig according to claim 1, characterized in that: The lower end of the lower clamping frame (2) is fixed with a fixed box (22), the inner wall of the lower end of the lower clamping frame (2) is fixedly embedded with a metal thick plate (21), the upper end of the metal thick plate (21) is provided with a plurality of groups of metal round openings (211) arranged in an array, the telescopic vertical rod (23) is inserted into the metal round opening (211), the upper end of the telescopic vertical rod (23) is rounded, the lower end of the telescopic vertical rod (23) is fixed with a reset spring (233), and the lower end of the reset spring (233) is fixed with the inner wall of the fixed box (22). A plurality of groups of vertical penetrating limiting openings (231) are arranged on the outer wall of the telescopic vertical rod (23), and one group of the penetrating limiting openings (231) is internally provided with a limiting plug (232).

5. A round steel blank drilling jig according to claim 4, characterized in that: The shape of the penetrating limiting opening (231) is arc-shaped at the upper end and vertical at both sides and the lower end, and the cross section of the plug (232) is semicircular.

6. A round steel blank drilling jig according to claim 1, characterized in that: The inner wall of the limiting sleeve (321) is extruded with the outer wall of the hollow limiting pipe (31), the inside of the limiting sleeve (321) is provided with an annular cavity (322), and the inside of the annular cavity (322) is coincided with one water outlet (311). The outer wall of the hollow vertical pipe (323) is provided with a pinhole for extruding water, which is used for wetting the cloth layer (32).

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