Pneumatic clamp for drilling

Abstract

The utility model relates to a pneumatic fixture for drilling, which comprises a mounting base, an adjustable clamping structure is mounted on the upper end face of the mounting base, and the clamping structure comprises a placing structure, a clamping structure and a driving structure; the clamping structure is installed on the driving structure, a shaft sleeve is placed on the placing structure, the clamping structure makes contact with the surface of the shaft sleeve when started, the driving structure comprises an air cylinder, the air cylinder is installed on the upper end face of the installation base, the clamping structure is installed on the upper end face of the telescopic end of the air cylinder, and the clamping structure comprises an installation plate and a corner air cylinder; the mounting plate is mounted at the upper end of the telescopic end of the cylinder and extends rightwards to the upper surface of the cylinder, a corner cylinder is mounted on the upper end face of the mounting plate, and the driving structure drives the clamping structure to extend and retract. The utility model solves the problems of low clamping efficiency, difficulty in realizing adjustment of different lengths under the condition of ensuring quick positioning and clamping, and difficulty in cleaning sweeps in a concentrated manner after drilling in the conventional clamp for drilling the shaft and the shaft sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning fixture technical field, concretely is a pneumatic fixture for drilling. BACKGROUND

[0002] When drilling the shaft and the shaft sleeve, generally, the clamping block is fixed, the clamping block is moved reversely through the threaded shaft, thereby realizing the clamping of the material, but this fixing mode needs human intervention, the intervention time is long, and the material cannot be clamped and positioned quickly in a short time, and this method cannot guarantee whether the material is directly below the drill bit, so it is inconvenient.

[0003] In order to realize quick positioning and shorten the clamping and positioning time, the patent CN212822914U, a shaft sleeve drilling clamp, points out that the shaft sleeve is placed on the positioning mandrel, then the gasket is moved to the side of the shaft sleeve through the rotation of the nut, thereby completing the positioning, this can facilitate positioning, but still needs human intervention, and the time efficiency has not been significantly improved, so the above problems have not been completely solved, secondly, the above document cannot effectively adjust according to the different lengths of the material, so the applicability is insufficient, and thirdly, the existing clamp leaves the waste after drilling on the surface, so the cleaning area is large when cleaning, thereby prolonging the cleaning time.

[0004] Therefore, according to the searched patent document, combined with the existing actual used clamp, in order to realize quick clamping and positioning, improve the efficiency significantly, and also can be self-clamped according to the length of the material, and secondly, shorten the cleaning time after completion, hereby a pneumatic clamp for drilling is proposed, thereby the technical problems existing in the prior art can be solved. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a pneumatic clamp for drilling, which solves the problems of the existing clamp for drilling the shaft and the shaft sleeve, low clamping efficiency, difficulty in realizing adjustment of different lengths while ensuring quick positioning and clamping, and difficulty in centralized cleaning of waste after drilling.

[0006] To achieve the above object, the utility model provides the following technical scheme: A pneumatic clamp for drilling, including installation base, the upper end surface of installation base is equipped with adjustable clamping structure, the clamping structure includes placement structure, clamping structure and drive structure, the clamping structure is installed on drive structure, its placement structure is placed with shaft sleeve, and the clamping structure is in contact with the surface of shaft sleeve when starting, and drive structure includes pneumatic cylinder, and the pneumatic cylinder is installed on the upper end surface of installation base, and the upper end surface of pneumatic cylinder telescopic end is equipped with clamping structure, and the clamping structure includes mounting plate, corner pneumatic cylinder, the mounting plate is installed on the telescopic end of pneumatic cylinder upper end, and extends to the upper surface of pneumatic cylinder right, and the upper end surface of mounting plate is equipped with corner pneumatic cylinder, and drive structure drives clamping structure to extend and contract.

[0007] Through the above technical scheme, further, the placement structure includes left clamping block, left clamping plate, right clamping block, right clamping plate, and the left clamping block and right clamping block are arranged on the upper end surface of installation base.

[0008] Wherein the left clamping block is fixed, and the right clamping block is movable, and the right clamping block is connected with the telescopic end of pneumatic cylinder, and the left clamping plate is installed on the left side surface of left clamping block, and the right clamping plate is installed on the right side surface of right clamping block.

[0009] Further, V-shaped openings are formed on the surfaces of the left clamping block and the right clamping block, and the lower ends of the V-shaped openings extend downward.

[0010] As a preferred technical scheme, the downward extending end surface of the V-shaped opening is chamfered, and the chamfering angle is °.

[0011] Further, a circular hole is symmetrically formed on the surface of the right clamping block, a limiting column with the same diameter as the circular hole is symmetrically installed on the right side surface of the left clamping block, and the limiting column extends to the right of the right clamping plate through the circular hole.

[0012] As a preferred technical scheme, a groove is formed between the left clamping block and the right clamping block on the upper end surface of the installation base.

[0013] Further, a square groove is formed on the lower end surface of the mounting plate, the groove surface of the square groove is in contact with the upper end surface of the pneumatic cylinder, and the surface of the lower end surface of the mounting plate without the square groove is bolted to the end surface of the telescopic end of the pneumatic cylinder.

[0014] Compared with the prior art, the utility model provides a pneumatic clamp for drilling, which has the following beneficial effects:

[0015] 1, this clamp is connected together through clamping structure and drive structure, can make it according to the length of shaft or shaft sleeve adaptive clamping, and can effectively clamp through clamping structure, prevent the phenomenon that drill bit is possibly driven to move upward when pulling out.

[0016] 2, the left clamping block and the right clamping block are connected, and V-shaped openings are formed on the surfaces, so that different shafts or shaft sleeves can be adapted, and the applicability of the clamp is enhanced, and the lower end of the V-shaped opening is extended, so that the risk of damage to the surface of the clamping block caused by the drill when drilling the shaft can be effectively prevented.

[0017] 3, the inclined surface on the extended surface of the lower end of the V-shaped opening is connected with the groove on the upper end of the mounting base, so that the waste can be effectively slid into the groove through the inclined surface, thereby facilitating centralized collection and saving cleaning time. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the present application;

[0019] Figure 2 is a top view of the present application Figure 1 ;

[0020] Figure 3 is a three-dimensional structure schematic view of the present application Figure 1 ;

[0021] Figure 4 is a three-dimensional structure schematic view of the present application Figure 1 ;

[0022] Figure 5 is an exploded view of the placement structure of the present application;

[0023] Figure 6 is an exploded view of the driving structure and the clamping structure of the present application.

[0024] In the figure: 1, mounting base; 2, left clamping block; 3, left clamping plate; 4, right clamping block; 5, right clamping plate; 6, air cylinder; 7, mounting plate; 8, corner air cylinder; 9, limiting column; 10, shaft sleeve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] EMBODIMENT

[0027] Please refer to Figures 1-6The utility model provides the following technical scheme: A pneumatic clamp for drilling, including installation base 1, the upper end surface of installation base 1 is equipped with adjustable clamping structure, the clamping structure includes placement structure, clamping structure and drive structure, the clamping structure is installed on drive structure, its placement structure is placed with shaft sleeve 10, the clamping structure is in contact with the surface of shaft sleeve 10 when starting, and drive structure includes cylinder 6, cylinder 6 is installed on the upper end surface of installation base 1, and the upper end surface of the telescopic end of cylinder 6 is equipped with clamping structure, and the clamping structure includes mounting plate 7, corner cylinder 8, mounting plate 7 is installed on the telescopic end upper end of cylinder 6 and extends to the upper surface of cylinder 6 to the right, and corner cylinder 8 is installed on the upper end surface of mounting plate 7, and drive structure drives clamping structure to extend and contract.

[0028] In the embodiment, the specific working principle is: before using the clamp, the center point of the left clamping block 2 directly below the drill bit needs to be consistent with the drill bit, then the shaft sleeve is placed on the placement structure, before placing, the drive structure needs to be contracted according to the length of the material, then it is placed again, after the placement is completed, the drive structure is started to make the telescopic end of the cylinder 6 drive the right clamping block 4 to approach the right side surface of the material, so that the material is in contact with the left side surface of the right clamping plate 5, so that the clamping of the material is completed, at this time, the corner cylinder 8 is started to make the telescopic end of the corner cylinder 8 in contact with the surface of the material, so that the clamping state is completed, then the drill bit is used for drilling processing, so that the clamp can realize adaptive clamping under the premise of realizing rapid clamping positioning, so that the efficiency of clamping the shaft sleeve 10 is improved.

[0029] According to the above, the placement structure can be specifically referred to Figures 1-5 It can be seen that the placement structure includes the left clamping block 2, the left clamping plate 3, the right clamping block 4 and the right clamping plate 5; the left clamping block 2 and the right clamping block 4 are arranged on the upper end surface of the installation base 1;

[0030] The left clamping block 2 is fixed, and the right clamping block 4 is movable, the right clamping block 4 is connected with the telescopic end of the cylinder 6, the left clamping plate 3 is arranged on the left side surface of the left clamping block 2, and the right clamping plate 5 is arranged on the right side surface of the right clamping block 4; the drive structure can drive the right clamping block 4 to move, so that the length of the material can be adjusted appropriately, and the shaft sleeve or the shaft can be clamped by the left clamping plate 3 and the right clamping plate 5.

[0031] In order to facilitate the placement of shaft sleeves of different diameters, the specific placement structure can be specifically referred to Figure 5 It can be seen that V-shaped openings are formed in the surfaces of the left clamping block 2 and the right clamping block 4, in order to prevent the drill from damaging the surface of the clamping block when drilling through the shaft sleeve 10, and the specific structure can be specifically referred to Figure 5 It can be seen that the lower end of the V-shaped opening extends downward.

[0032] In order to facilitate the collection of waste, can be seen in detail from Figure 5 It can be seen that the V-shaped opening downwardly extending end face is chamfered, and the chamfer angle is 45°. In this way, when the drill bit drills through the shaft sleeve 10, the waste can slide down according to the inclined surface, thereby facilitating subsequent cleaning.

[0033] In order to improve the stability of the right clamping block 4, can be seen in detail from Figure 4 With Figure 5 It can be seen that the right clamping block 4 surface is symmetrically provided with a circular hole, and the right side surface of the left clamping block 2 is symmetrically provided with a limiting column 9 with the same diameter as the circular hole. The limiting column 9 extends to the right of the right clamping plate 5 through the circular hole.

[0034] In order to facilitate the collection and treatment of waste, can be seen in detail from Figure 4 With Figure 5 It can be seen that the upper end surface of the mounting base 1 is provided with a groove between the left clamping block 2 and the right clamping block 4. The waste falls into the groove through the inclined surface, so that it can be cleaned concentratedly during subsequent cleaning, reducing the cleaning time.

[0035] In order to prevent the mounting plate 7 from colliding with the surface of the air cylinder 6, can be seen in detail from Figure 6 It can be seen that the lower end surface of the mounting plate 7 is provided with a square groove. The groove surface of the square groove is in contact with the upper end surface of the air cylinder 6, and the surface of the lower end surface of the mounting plate 7 which is not provided with the square groove is bolted with the end surface of the air cylinder 6. Because the upper end surface of the extension end of the air cylinder is inconsistent with the upper end surface of the air cylinder 6, the extension end surface is lower than the upper end surface of the air cylinder 6. Therefore, the square groove is provided at the lower end of the mounting plate 7, so that the groove surface is in contact with the upper end surface of the air cylinder 6. In this way, when the extension end of the air cylinder 6 is driven to extend or retract, the mounting plate 7 will not collide with the air cylinder 6.

[0036] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pneumatic clamp for drilling, comprising a mounting base (1), characterised in that: The adjustable clamping structure is installed on the upper end face of the mounting base (1), and comprises a placing structure, a clamping structure and a driving structure. The clamping structure is installed on the driving structure, the placing structure is provided with a shaft sleeve (10), the clamping structure is in contact with the surface of the shaft sleeve (10) when started, the driving structure comprises a pneumatic cylinder (6), the pneumatic cylinder (6) is installed on the upper end face of the mounting base (1), the clamping structure is installed on the upper end face of the telescopic end of the pneumatic cylinder (6), and the clamping structure comprises a mounting plate (7) and a corner pneumatic cylinder (8). The mounting plate (7) is installed on the telescopic end of the pneumatic cylinder (6) and extends to the upper surface of the pneumatic cylinder (6), the corner pneumatic cylinder (8) is installed on the upper end face of the mounting plate (7), and the driving structure drives the clamping structure to extend and contract.

2. A pneumatic chuck as claimed in claim 1, wherein: The placing structure comprises left clamping blocks (2), left clamping plates (3), right clamping blocks (4) and right clamping plates (5). The left clamping blocks (2) and the right clamping blocks (4) are arranged on the upper end face of the mounting base (1). The left clamping blocks (2) are fixed, the right clamping blocks (4) are movable, the right clamping blocks (4) are connected with the telescopic end of the pneumatic cylinder (6), the left clamping plates (3) are installed on the left side face of the left clamping blocks (2), and the right clamping plates (5) are installed on the right side face of the right clamping blocks (4).

3. A pneumatic chuck as claimed in claim 2, wherein: V-shaped openings are arranged on the surfaces of the left clamping blocks (2) and the right clamping blocks (4), and the lower end portions of the V-shaped openings extend downward.

4. A pneumatic chuck as claimed in claim 3, wherein: The downward extending end face of the V-shaped opening is chamfered, and the chamfering angle is 45°.

5. A pneumatic chuck as claimed in claim 4, wherein: Symmetrical circular holes are arranged on the surface of the right clamping blocks (4), symmetrical limiting columns (9) with the same diameter as the circular holes are installed on the right side face of the left clamping blocks (2), and the limiting columns (9) extend to the right of the right clamping plates (5) through the circular holes.

6. The pneumatic chuck as set forth in claim 1, further comprising: A groove is arranged between the left clamping blocks (2) and the right clamping blocks (4) on the upper end face of the mounting base (1).

7. The pneumatic chuck as set forth in claim 1, further comprising: A square groove is arranged on the lower end face of the mounting plate (7), the groove face of the square groove is in contact with the upper end face of the pneumatic cylinder (6), and the face of the lower end face of the mounting plate (7) without the square groove is bolted with the end face of the telescopic end of the pneumatic cylinder (6).

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