Foam mold trepanning tool

Abstract

The utility model provides a foam mold trepanning tool which comprises a sleeve concentrically connected with the output end of an electric tool; the abutting seat is concentrically connected with the sleeve, and a center hole is formed in the center; the diameter of the central hole is equal to the inner diameter of the sleeve; and the transmission rod is sleeved in the central holes of the sleeve and the abutting seat, a positioning cover is sleeved on the transmission rod, and one end far away from the electric tool is connected with a blade. The depth of the counter bore is determined by setting the distance between the blade and the abutting seat in advance, the counter bore with the depth meeting the design requirement is obtained by directly abutting the positioning cover and the abutting seat at a time during trepanning operation, and therefore repeated trepanning operation of the counter bore is avoided, and the trepanning operation of the counter bore is rapidly and efficiently completed.

Description

Technical Field

[0001] The utility model belongs to the field of hole-opening tools and relates to a hole-opening tool for a foam mold. Background Art

[0002] In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art: in the production and manufacturing process of a foam mold, through holes or counterbores need to be opened on the foam mold according to actual requirements. The traditional process for the counterbore opening operation is very cumbersome, and it is necessary to measure the hole depth multiple times during the hole-opening process and repeatedly perform the hole-opening operation after measurement to achieve the effect required in the design drawing. Summary of the Utility Model

[0003] In view of this, the purpose of the present utility model is to provide a hole-opening tool for a foam mold to avoid multiple repetitions of the counterbore opening operation and achieve the quick and efficient completion of the counterbore opening operation.

[0004] The present utility model provides a hole-opening tool for a foam mold, including: a sleeve concentrically connected to the output end of a power tool; a base concentrically connected to the sleeve, with a central hole provided in the central part; the diameter of the central hole is equal to the inner diameter of the sleeve; a transmission rod sleeved in the central holes of the sleeve and the base, with a positioning cover sleeved thereon, and a blade connected to the end far from the power tool.

[0005] By presetting the distance from the blade to the base to determine the depth of the counterbore, during the hole-opening operation, directly perform one operation until the positioning cover abuts against the base, and obtain a counterbore with a depth meeting the design requirements, thereby avoiding multiple repetitions of the counterbore opening operation and achieving the quick and efficient completion of the counterbore opening operation.

[0006] It should be noted that the present utility model can also meet the opening of through holes. As long as the distance length from the blade to the base is set to be greater than the thickness of the wall of the through hole to be opened, the above-mentioned counterbore opening operation method can be used to complete the through hole opening operation.

[0007] Preferably, a through hole is provided on the outer wall of the base, and a thread is provided on the inner wall of the through hole. The thread is matched with a positioning screw, and the end face of the positioning screw abuts against the transmission rod. Fixing the transmission rod by the abutting manner of the screw can conveniently and quickly adjust the distance from the blade to the base, so as to meet the opening requirements of counterbores with different depths.

[0008] Preferably, at least one opening is provided on the side wall of the positioning cover. The opening on the positioning cover can discharge the debris generated during the hole-opening operation, avoiding the accumulation of a large amount of debris in the positioning cover and affecting the hole-opening operation.

[0009] Furthermore, the opening is a slot hole. Compared with a round hole, the slot hole is more conducive to the discharge of debris.

[0010] Preferably, the orthographic projection of the blade is a trapezoid. The side of the trapezoid away from the transmission rod is the base, and the length of the base is s, while the diameter of the positioning cover is d, and s < d. The trapezoidal blade prevents the two sides of the blade from scraping against the wall of the counterbore, thus affecting the counterboring operation. The length of the base being less than the diameter of the positioning cover ensures that the positioning cover will not pass through the counterbore, enabling better realization of the positioning function.

[0011] Preferably, the cutting edge of the blade is located on the side away from the transmission rod. By using the method of flat-bottom rotary scraping for counterboring, it can ensure that the bottom of the counterbore is flat at the beginning of the counterboring process, avoiding the complicated process of reprocessing the bottom of the hole required by the spiral drill bit type of counterboring.

[0012] Preferably, one end of the transmission rod away from the power tool is provided with a socket, and concentric screw holes are provided on both sides of the socket. The diameter of the screw hole is a, and one end of the blade close to the transmission rod is provided with a round hole, and the diameter of the round hole is b, and a = b. Screws are fitted in the screw holes, and the screws pass through the round holes of the blade. The blade is connected to the transmission rod by means of a socket bolt, which not only ensures the connection strength but also facilitates the replacement of the blade to meet the requirements for counterboring different diameters of holes.

[0013] Furthermore, a hexagonal nut is fitted at the end of the screw, which improves the stability of the screwing connection between the blade and the socket.

[0014] Compared with the prior art, one of the technical solutions in the above technical solutions has the following advantages:

[0015] The present utility model provides a foam mold counterboring tool, including: a sleeve concentrically connected to the output end of the power tool; a base seat concentrically connected to the sleeve, with a central hole provided in the central part; the diameter of the central hole is equal to the inner diameter of the sleeve, and the central hole and the sleeve form a hollow channel; a transmission rod sleeved in the hollow channel, with a positioning cover sleeved thereon, and a blade connected to the end away from the power tool. By presetting the distance from the blade to the base seat to determine the depth of the counterbore, during the counterboring operation, it directly operates once until the positioning cover abuts against the base seat, obtaining a counterbore with a depth that meets the design requirements, thereby avoiding multiple repetitions of the counterboring operation of the counterbore and achieving the quick and efficient completion of the counterboring operation of the counterbore. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1It is a schematic diagram of the present utility model.

[0018] Figure 2 It is a schematic diagram before the hole-opening operation of the sunken hole of the present utility model.

[0019] Figure 3 It is a schematic diagram during the hole-opening operation of the sunken hole of the present utility model.

[0020] Figure 4 It is a schematic diagram when the hole-opening operation of the sunken hole of the present utility model is completed.

[0021] Figure 5 It is a schematic diagram when the hole-opening operation of the through hole of the present utility model is completed.

[0022] The marks in the figure are respectively: 1 - sleeve, 2 - abutment, 3 - transmission rod, 4 - positioning cover, 5 - blade. Specific embodiments

[0023] The following is described in conjunction with the accompanying drawings and a specific embodiment.

[0024] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.

[0025] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0026] Embodiment 1

[0027] See Figures 1 to 5 . This embodiment provides a foam mold hole-opening tool, including: a sleeve 1, concentrically connected to the output end of the electric tool; an abutment 2, concentrically connected to the sleeve 1, with a central hole provided in the central part; the diameter of the central hole is equal to the inner diameter of the sleeve 1, and the central hole and the sleeve 1 form a hollow channel; a transmission rod 3, sleeved in the hollow channel, sleeved with a positioning cover 4, and a blade 5 is connected to the end far from the electric tool.

[0028] The depth of the counterbore is determined by presetting the distance from the blade 5 to the abutment 2. During the counterboring operation, the operation is directly carried out once until the positioning cover 4 abuts against the abutment 2, obtaining a counterbore with a depth meeting the design requirements, thus avoiding repeated counterboring operations and achieving the quick and efficient completion of the counterboring operation.

[0029] It should be noted that this embodiment can also meet the opening of through holes. As long as the distance from the blade 5 to the abutment 2 is set to be greater than the thickness of the wall of the through hole to be opened, the above counterboring operation method can be used to complete the opening operation of the through hole.

[0030] Preferably, the outer wall of the abutment 2 is provided with a through hole, the inner wall of the through hole is provided with a thread, and the thread is matched with a positioning screw. The end face of the positioning screw abuts against the transmission rod 3. Fixing the transmission rod 3 by the way of screw abutment can conveniently and quickly adjust the distance from the blade 5 to the abutment 2, so as to meet the opening requirements of counterbores with different depths.

[0031] Preferably, at least one opening is provided on the side wall of the positioning cover 4. The opening on the positioning cover 4 can discharge the debris generated during the opening operation, avoiding the accumulation of a large amount of debris in the positioning cover 4 and affecting the opening operation.

[0032] Furthermore, the opening is a slot hole. Compared with a round hole, the slot hole is more conducive to the discharge of debris.

[0033] Preferably, the orthographic projection of the blade 5 is a trapezoid. The side of the trapezoid away from the transmission rod 3 is the bottom edge, and the distance length of the bottom edge is s, and the diameter length of the positioning cover 4 is d, s < d. The trapezoidal blade 5 avoids the two sides of the blade 5 scraping the counterbore wall and affecting the progress of the opening operation; the length of the bottom edge is less than the diameter of the positioning cover 4, which can ensure that the positioning cover 4 will not pass through the opening, enabling the positioning function to be better realized.

[0034] Preferably, the cutting edge of the blade 5 is located on the side away from the transmission rod 3. The counterbore is opened by the way of flat-bottom rotary scraping cutting, which can ensure that the bottom of the counterbore is flat at the beginning of the opening, avoiding the complicated process of reprocessing the bottom of the hole required by the spiral drill bit type opening.

[0035] Preferably, the end of the transmission rod 3 away from the power tool is provided with a socket, and concentric screw holes are provided on both sides of the socket. The diameter of the screw hole is a, and the end of the blade 5 close to the transmission rod 3 is provided with a round hole. The diameter of the round hole is b, a = b, and screws are fitted in the screw holes. The screws pass through the round hole of the blade 5. The blade 5 is connected to the transmission rod 3 by the way of socket bolts. While ensuring the connection strength, the blade 5 can be conveniently replaced to meet the opening requirements of counterbores with different diameters.

[0036] Further, a hexagonal nut is fitted to the end of the screw, enhancing the stability of the screwing connection between the blade 5 and the socket.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0039] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0041] The above are only the preferred embodiments of the present utility model. It should be noted that the above preferred embodiments should not be construed as limiting the present utility model. The protection scope of the present utility model should be subject to the scope defined by the claims. For those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, several improvements and refinements can also be made, and these improvements and refinements should also be regarded as within the protection scope of the present utility model.

Claims

1. A foam mold hole opening tool, characterized in that: include A sleeve (1) is concentrically connected to an output end of the electric tool; The stopper (2) is concentrically connected to the sleeve (1), and a center hole is provided in the center portion; The diameter of the central hole is equal to the inner diameter of the sleeve (1), and the central hole and the sleeve form a hollow channel; The transmission rod (3) is sleeved in the hollow channel and is sleeved with a positioning cover (4), and the end away from the electric tool is connected to a blade (5).

2. A foam mold hole opening tool according to claim 1, characterized in that: The outer wall of the buttress (2) is provided with a through hole, the inner wall of the through hole is provided with a thread, the thread is matched with a positioning screw, and the end surface of the positioning screw is in contact with the transmission rod (3).

3. A foam mold opening tool according to claim 1, characterized in that: The side wall of the positioning cover (4) is provided with at least one opening.

4. A foam mold hole opening tool according to claim 2, characterized in that: The opening is a slotted hole.

5. A foam mold hole opening tool according to claim 1, characterized in that: The orthographic projection of the blade (5) is a trapezoid, the side of the trapezoid away from the transmission rod (3) is the base, the distance length of the base is s, the diameter length of the positioning cover (4) is d, and s<d.

6. A foam mold hole opening tool according to claim 5, characterized in that: The cutting edge of the blade (5) is located on a side away from the transmission rod (3).

7. A foam mold hole opening tool according to claim 1, characterized in that: The transmission rod (3) is provided with a socket at one end away from the electric tool, and concentric screw holes are provided on both sides of the socket, and the hole diameter of the screw hole is a. The blade (5) is provided with a circular hole at one end close to the transmission rod (3), and the hole diameter of the circular hole is b, a=b. A screw is fitted in the screw hole, and the screw passes through the circular hole of the blade (5).

8. A foam mold hole opening tool according to claim 7, characterized in that: The end of the screw is matched with a hexagonal nut.

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