Drilling tool of vertical milling machine

Abstract

The utility model discloses a vertical milling machine drilling tool, and relates to the technical field of machining tools. The device structurally comprises a base mounted on a milling machine, six centering clamping assemblies which are annularly and uniformly distributed are mounted on the base; the centering clamping assembly comprises a linear guide sleeve, a supporting clamping head, an ejecting device and a supporting lug. A threaded hole in threaded connection with the puller is formed in the support lug; the linear guide sleeve is fixed on the upper surface of the base; the support clamping head is linearly and slidably mounted on the linear guide sleeve; the inner side end of the puller abuts against the outer side end of the supporting clamping head. By means of the six centering clamping assemblies, the stability and precision of the circular guide rail in the machining process can be guaranteed. Each centering clamping assembly comprises a linear guide sleeve, a supporting clamping head, an ejecting device and a supporting lug, the linear guide sleeves, the supporting clamping heads, the ejecting devices and the supporting lugs are matched with one another, accurate positioning and clamping of the circular guide rails are achieved, repeated clamping stability is good, and the circular guide rail clamping device is suitable for being used when the circular guide rails are machined in batches.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical processing frock technical field, especially, relate to a vertical milling machine drilling frock. BACKGROUND

[0002] In modern industry and scientific research, the demand for precise circular or arc motion is increasing. Traditional transmission methods often cannot meet the application requirements of high precision, high load and complex environment. As an innovative mechanical component, the circular toothed ring guide rail emerges as the times require. It integrates a rack on a circular track and cooperates with a gear or synchronous belt drive to achieve precise and flexible motion control. This guide rail not only has a wide range of load capacity and adjustable speed, but also has a variety of material options, which can meet the stringent requirements of different industries and environments. Its lubrication system further ensures long-term stable operation, reduces maintenance costs and downtime.

[0003] In the food and pharmaceutical industries, the circular toothed ring guide rail greatly simplifies the equipment structure and reduces the risk of pollution without additional transmission systems, so it is widely used. Similarly, in the field of scientific research, this guide rail has become an indispensable part of high-precision experimental equipment due to its high-precision characteristics. The advantages of design, such as high precision, flexibility and customization, allow the circular toothed ring guide rail to be personalized according to specific application requirements. Whether it is a small-sized precision instrument or a large-sized industrial equipment, a suitable solution can be found.

[0004] The circular toothed ring guide rail includes a circular ring guide rail and an annular outer / inner gear ring connected by multiple countersunk head bolts. The circular ring guide rail has multiple stepped through holes, and the annular gear ring has corresponding threaded through holes. In addition, the outer wall of the annular guide rail is provided with a protruding guide ring part for guiding the guide wheel. The circular ring guide rail needs to be clamped and positioned when the stepped through holes are opened. The traditional clamping method needs to be adjusted multiple times because the guide ring part on the outer wall is not conducive to clamping and fixing. In order to facilitate repeated clamping operations during machining of the circular ring guide rail, the present application provides a vertical milling machine drilling frock. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a vertical milling machine drilling frock, which realizes precise positioning and clamping of the circular ring guide rail by installing six concentric clamping components uniformly distributed on the base.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a vertical milling machine drilling frock, including installing on the base of milling machine, install six homocentric clamping assemblies of annular uniform distribution on the base, the homocentric clamping assembly includes linear guide sleeve, support clamping head, tightener and support lug, the support lug is provided with the threaded hole of screw thread connection with the tightener, the linear guide sleeve is fixed on the upper surface of the base, the support clamping head linear sliding installation is on the linear guide sleeve, the inside end of the tightener is on the outside end of the support clamping head, and the contact end of the tightener with the support clamping head is located inside the linear guide sleeve, six linear guide sleeve axis of six homocentric clamping assemblies meet in a point.

[0008] As a preferred technical scheme of the utility model, the base includes a flat plate body, at least two pairs of U-shaped notches are formed at the edges of the plate body, and the plate body is installed on the milling machine by the T-shaped bolt and nut assembly matched with the U-shaped notches.

[0009] As a preferred technical scheme of the utility model, the linear guide sleeve includes a horizontally arranged column body, and a through rectangular through hole is formed in the center of the column body.

[0010] As a preferred technical scheme of the utility model, the support clamping head includes a rectangular sliding rod slidably matched with the rectangular through hole, one end of the rectangular sliding rod is fixed with a circular arc plate strip, an inner arc surface of the lower end of the circular arc plate strip is provided with a circular arc strip support table, a stepped circular arc groove is formed in the upper half of the circular arc plate strip, and a tapered circular arc buckle groove is formed in the stepped circular arc groove.

[0011] As a preferred technical scheme of the utility model, the tightener includes a screw rod connected and matched with the threaded hole, the inside end of the screw rod abuts against the support clamping head, the outside end of the screw rod is fixed with a rotary disc, and the rotary disc is fixed with a handle.

[0012] The utility model has the following beneficial effects:

[0013] 1、 the utility model discloses six homocentric clamping assemblies, which can ensure the stability and precision of the circular annular guide rail during the machining process. Each homocentric clamping assembly includes a linear guide sleeve, a support clamping head, a tightener and a support lug. These components cooperate with each other to realize accurate positioning and clamping of the circular annular guide rail.

[0014] 2、The arc plate strip and the rectangular through hole are in sliding fit, and the arc plate strip can be made according to the outer diameter size of the circular annular guide rail to be clamped. The inner diameter of the arc plate strip is the same as the outer diameter of the lower half of the circular annular guide rail to be clamped, and the radial width of the arc strip support table is 5-10 mm, so that the circular annular guide rail can be suspended and held, and the milling cutter is prevented from colliding with the lower base. Meanwhile, the stepped arc groove formed in the upper half of the arc plate strip does not contact the outer wall of the circular annular guide rail when the circular annular guide rail is clamped, and cooperates with the tapered arc buckle groove to buckle the guide ring part of the circular annular guide rail when the circular annular guide rail is tightened, so as to exert a downward force on the entire circular annular guide rail, and the circular annular guide rail is reliably attached to the arc strip support table.

[0015] 3、The top tightener comprises a screw rod connected with the threaded hole, and the inner side end of the screw rod abuts against the support clamping head. The outer side end of the screw rod is fixed with a rotating disc, and the rotating disc is fixed with a handle. When the top tightener is used, the handle only needs to be held to rotate the rotating disc to drive the screw rod to advance or retreat, so as to tighten or relax the support clamping head. This design makes the operation more convenient and fast.

[0016] 4、When clamping, the support clamping head of the six centering clamping assemblies is pushed by the top tightener to tightly attach the six arc plate strips to the outer wall of the circular annular guide rail, so that the circular annular guide rail is clamped. The whole process is fast and convenient, and the work efficiency is greatly improved.

[0017] 5、The whole tooling is convenient and reliable in operation when connecting and processing the circular annular guide rail, and is suitable for the hole processing of the circular annular guide rail with the protruding guide ring part. This provides a safe and reliable working environment for the workers.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor under the premise of the drawings.

[0020] Figure 1 It is a structure schematic view when the vertical milling machine drilling tooling clamps the circular annular guide rail.

[0021] Figure 2 It is Figure 1 The top view.

[0022] Figure 3 It isFigure 2 Vertical midsectional view of the schematic diagram.

[0023] Figure 4 As Figure 3 Local enlarged view at A.

[0024] Figure 5 Structure schematic diagram of base, linear guide sleeve and support lug.

[0025] Figure 6 Structure schematic diagram of supporting clamping head.

[0026] In the drawings, the components represented by each reference numeral are listed as follows:

[0027] 1-base, 2-linear guide sleeve, 3-supporting clamping head, 4-tightener, 5-support lug, 11-plate body, 12-U-shaped notch, 21-column, 22-rectangular through hole, 31-rectangular sliding rod, 32-circular arc plate strip, 33-circular arc strip support table, 34-step circular arc groove, 35-tapered circular arc buckle groove, 41-screw rod, 42-rotating disc, 43-crank handle, 51-threaded hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiment one:

[0030] Please refer to Figures 1-6 The utility model discloses a vertical milling machine drilling tool which comprises a base 1 installed on a milling machine. Six concentric clamping assemblies are evenly distributed on the base 1. The concentric clamping assembly comprises a linear guide sleeve 2, a supporting clamping head 3, a tightener 4 and a support lug 5. The support lug 5 is provided with a threaded hole 51 which is threadedly connected with the tightener 4. The linear guide sleeve 2 is fixed on the upper surface of the base 1. The supporting clamping head 3 is linearly slidably installed on the linear guide sleeve 2. The inner side end of the tightener 4 abuts against the outer side end of the supporting clamping head 3, and the contact end of the tightener 4 and the supporting clamping head 3 is located inside the linear guide sleeve 2. The six linear guide sleeves 2 of the six concentric clamping assemblies intersect at a point.

[0031] The base 1 comprises a flat plate body 11. At least two pairs of U-shaped notches 12 are formed at the edges of the plate body 11. The U-shaped notches 12 are matched with T-shaped bolt and nut assemblies to install the plate body 11 on the milling machine.

[0032] The straight guide sleeve 2 comprises a horizontally arranged column 21. A rectangular through hole 22 is arranged in the center of the column 21. In the embodiment, the column 21 is a rectangular column, and a cylindrical column can also be used in other embodiments.

[0033] The support clamping head 3 is a replacement part, which is made according to the outer diameter of the circular ring guide rail to be clamped. The support clamping head 3 comprises a rectangular slide rod 31 which is in sliding fit with the rectangular through hole 22. The one end of the rectangular slide rod 31 is fixed with a circular arc plate strip 32. The inner arc surface of the lower end of the circular arc plate strip 32 is provided with a circular arc strip support table 33. The upper half of the circular arc plate strip 32 is provided with a stepped circular arc groove 34. The stepped circular arc groove 34 is provided with a tapered circular arc buckle groove 35. The inner diameter of the circular arc plate strip 32 is the same as the outer diameter of the lower half of the circular ring guide rail to be clamped. The radial width of the circular arc strip support table 33 is 5-10 mm. The circular arc strip support table 33 suspends the circular ring guide rail to avoid the collision of the milling cutter with the base 1 below. The stepped circular arc groove 34 in the upper half of the circular arc plate strip 32 does not contact with the outer wall of the circular ring guide rail when clamping the circular ring guide rail. The tapered circular arc buckle groove 35 buckles the guide ring part of the circular ring guide rail when tightening, which exerts a downward force on the entire circular ring guide rail, thereby effectively ensuring that the circular ring guide rail is attached to the circular arc strip support table 33.

[0034] The top tightener 4 comprises a screw rod 41 which is connected with the threaded hole 51. The inner side end of the screw rod 41 abuts against the support clamping head 3. The outer side end of the screw rod 41 is fixed with a rotating disc 42. The rotating disc 42 is fixed with a handle 43. When in use, the top tightener 4 only needs to hold the handle 43 to rotate the rotating disc 42 to drive the screw rod 41 to advance or retreat, thereby achieving the tightening or relaxation of the support clamping head 3.

[0035] When clamping, the support clamping head 3 of the six centering clamping assemblies is tightly attached to the outer wall of the circular ring guide rail under the pushing of the top tightener 4, thereby achieving the clamping of the circular ring guide rail. The clamping process is fast and convenient. After the above tooling is clamped and installed on the circular ring guide rail, the milling machine can be started to punch and position and perform the milling and drilling operation. After the circular ring guide rail is punched, the top tightener 4 of the three continuous centering clamping assemblies is loosened to clamp and remove the workpiece. Then, a new circular ring guide rail is placed and clamped again to perform the milling and drilling operation. The entire tooling is convenient and reliable in operation when connecting and processing the circular ring guide rail, and is suitable for punching the circular ring guide rail with a protruding guide ring part.

[0036] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A drilling fixture for a vertical milling machine, characterized in that: Includes a base (1) mounted on a milling machine; The base (1) is equipped with six concentric clamping components that are evenly distributed in a ring. The concentric clamping assembly includes a linear guide sleeve (2), a support clamping head (3), a clamping device (4), and a lug (5); the lug (5) has a threaded hole (51) for threaded connection with the clamping device (4); the linear guide sleeve (2) is fixed to the upper surface of the base (1); the support clamping head (3) is linearly slidably mounted on the linear guide sleeve (2); the inner end of the clamping device (4) abuts against the outer end of the support clamping head (3), and the contact end of the clamping device (4) and the support clamping head (3) is located inside the linear guide sleeve (2); The axes of the six linear guide sleeves (2) of the six concentric clamping assemblies intersect at one point.

2. The drilling fixture for a vertical milling machine according to claim 1, characterized in that, The base (1) includes a flat plate (11); the edge of the plate (11) is provided with at least two pairs of U-shaped slots (12).

3. The drilling fixture for a vertical milling machine according to claim 1, characterized in that, The linear guide sleeve (2) includes a horizontally arranged column (21); a rectangular through hole (22) is opened in the center of the column (21).

4. The vertical milling machine drilling fixture according to claim 3, characterized in that, The support clamping head (3) includes a rectangular slide rod (31) that slides with the rectangular through hole (22); one end of the rectangular slide rod (31) is fixed with an arc strip (32); an arc strip support platform (33) is provided on the inner arc surface of the lower end of the arc strip (32); a stepped arc groove (34) is provided on the upper half of the arc strip (32); and a conical arc buckle groove (35) is provided on the stepped arc groove (34).

5. The vertical milling machine drilling fixture according to claim 1 or 4, characterized in that, The clamping device (4) includes a lead screw (41) that is connected and engaged with the threaded hole (51); the inner end of the lead screw (41) abuts against the support clamping head (3); a turntable (42) is fixed to the outer end of the lead screw (41); and a crank handle (43) is fixed on the turntable (42).

Images