Universal hole-milling protection tool

Abstract

The utility model relates to tool fixture technical field especially is related to a general milling hole protection tool to alleviate the problem that the existing milling hole tool lacks universality and is easy to damage workpiece. The tool includes pedestal, fastening mechanism and adjusting mechanism, fastening mechanism, adjusting mechanism are sequentially arranged on the upper portion of pedestal from top to bottom, the center of fastening mechanism can accommodate the workpiece to be milled, fastening mechanism can limit the workpiece to be milled, the upper surface of adjusting mechanism is in abutment with the workpiece to be milled, adjusting mechanism can move up and down. By setting adjustable fastening mechanism and adjusting mechanism, the adaptability of the tool to different sizes of workpieces to be milled is effectively improved, the spare parts backlog and warehousing pressure caused by the numerous specifications of traditional tools are greatly reduced, and the clamping efficiency and operation convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a general-purpose milling hole protection tooling. Background Technology

[0002] Authorization announcement number CN217965979U discloses a milling tool to solve the problem of deformation and breakage when milling the axial ends of a workpiece whose axial dimension is much larger than its radial dimension. However, the above milling tool still has some shortcomings: 1. The collar structure has a fixed size, so each type of workpiece to be milled needs to be set up with a corresponding milling tool, and there is a lack of universal equipment.

[0003] 2. Fasteners are in direct contact with the surface of the workpiece to be milled, which poses a risk of damaging the workpiece. Utility Model Content

[0004] To alleviate the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0005] This utility model provides a universal milling hole protection fixture, including a base, a fastening mechanism, and an adjustment mechanism;

[0006] The fastening mechanism and the adjustment mechanism are arranged sequentially from top to bottom on the upper part of the base;

[0007] The center of the fastening mechanism can accommodate the workpiece to be milled;

[0008] The fastening mechanism can limit the position of the workpiece to be milled;

[0009] The upper surface of the adjusting mechanism abuts against the workpiece to be milled;

[0010] The adjustment mechanism can move up and down.

[0011] Furthermore, the fastening mechanism includes a main body and a locking assembly;

[0012] Multiple locking components are arranged in a circular array around the axis of the main body;

[0013] The main body is ring-shaped, with a first cavity at the center and multiple second cavities arranged around the first cavity.

[0014] Furthermore, the locking assembly includes a pressure bar, a pawl, and a first guide post;

[0015] The pressure rod is installed inside the second cavity;

[0016] The chuck is positioned inside the first cavity;

[0017] The pressure bar and the jaw are fixedly connected by a connecting rod;

[0018] The connecting rod is slidably connected to the main body;

[0019] Two first guide posts are set on both sides of the connecting rod and are fixedly connected to the main body respectively;

[0020] The two ends of the pressure rod are slidably connected to the two first guide columns respectively.

[0021] Furthermore, the locking assembly also includes a fastening pin and a compression spring;

[0022] The outer wall of the main body has openings at positions corresponding to the connecting rods;

[0023] The opening is connected to the second cavity;

[0024] The fastening pin is located inside the opening and is threaded into the opening;

[0025] The compression spring is sleeved with the guide post, with one end abutting against the inner wall of the second cavity near the main axis, and the other end abutting against the side of the pressure rod near the main axis.

[0026] Furthermore, the adjustment mechanism includes a positioning plate, an adjustment stud, and a second guide post;

[0027] Multiple second guide columns are arranged in a circular array around the axis of the main body, with one end fixedly connected to the upper part of the base and the other end fixedly connected to the lower part of the main body.

[0028] The positioning disk is slidably connected to multiple second guide columns;

[0029] The base has a central hole;

[0030] The adjusting stud is threaded into the center hole and extends upward to abut against the lower part of the positioning plate.

[0031] Furthermore, the upper surface of the positioning disk is provided with multiple annular protrusions of different sizes.

[0032] Furthermore, multiple annular protrusions are centered on the axis of the main body.

[0033] Furthermore, the dimensions of the multiple annular protrusions are respectively set to correspond to the outer diameter of the workpiece to be milled.

[0034] Furthermore, the side of the chuck closest to the main axis is curved.

[0035] Furthermore, a rubber pad is provided on the side of the chuck closest to the main axis.

[0036] The beneficial effects of the general-purpose milling hole protection fixture in this utility model are analyzed as follows:

[0037] This fixture includes a base, a fastening mechanism, and an adjusting mechanism; the fastening mechanism and the adjusting mechanism are arranged sequentially from top to bottom on the upper part of the base; the center of the fastening mechanism can accommodate the workpiece to be milled; the fastening mechanism can limit the position of the workpiece to be milled; the upper surface of the adjusting mechanism abuts against the workpiece to be milled; the adjusting mechanism can move up and down.

[0038] By setting adjustable fastening and adjustment mechanisms, the adaptability of the tooling to workpieces with different sizes of milling holes is effectively improved, which greatly reduces the backlog of spare parts and storage pressure caused by the large number of specifications of traditional tooling, while improving clamping efficiency and ease of operation. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 A schematic diagram of the structure of the universal milling protection fixture provided for the embodiments of this utility model;

[0041] Figure 2 This is a cross-sectional schematic diagram of the fastening mechanism;

[0042] Figure 3 This is a cross-sectional schematic diagram of the adjustment mechanism.

[0043] Icons: 100-Base; 200-Fasting mechanism; 210-Main body; 211-First cavity; 212-Second cavity; 220-Locking assembly; 221-Pressure rod; 222-Claw; 223-First guide post; 224-Connecting rod; 225-Fasting pin; 226-Compression spring;

[0044] 300 - Adjustment mechanism; 310 - Positioning plate; 320 - Adjustment stud; 330 - Second guide post; 400 - Workpiece to be milled; 500 - Rubber pad. Detailed Implementation

[0045] Because existing milling fixtures lack versatility, multiple milling fixtures are required for workpieces of different sizes, resulting in a large number of spare parts, which increases the difficulty of warehousing and the inconvenience for workers. Furthermore, the fasteners are in direct contact with the surface of the workpiece, which can easily damage the workpiece and reduce the yield of the products.

[0046] In view of this, such as Figures 1 to 3 As shown, this solution provides a universal milling hole protection fixture to alleviate the above problems.

[0047] This fixture includes a base 100, a fastening mechanism 200, and an adjustment mechanism 300;

[0048] The fastening mechanism 200 and the adjusting mechanism 300 are arranged sequentially from top to bottom on the upper part of the base 100;

[0049] The center of the fastening mechanism 200 can accommodate the workpiece 400 to be milled;

[0050] The fastening mechanism 200 can limit the position of the workpiece 400 to be milled;

[0051] The upper surface of the adjusting mechanism 300 abuts against the workpiece 400 to be milled;

[0052] The adjustment mechanism 300 can move up and down.

[0053] Specifically, while clamping the milling workpiece 400 with the adjustable clamping mechanism 200, the circumferential surface on the side to be machined is reinforced and protected. At the same time, the adjustable clamping mechanism 200 and the adjustment mechanism 300 can clamp workpieces with different outer diameters and lengths to be milled, which is convenient for workers to operate.

[0054] Regarding the shape and structure of the fastening mechanism 200, such as Figure 1 and Figure 2 As shown:

[0055] The fastening mechanism 200 includes a main body 210 and a locking assembly 220;

[0056] Multiple locking components 220 are arranged in a circular array around the axis of the main body 210;

[0057] The main body 210 is ring-shaped, with a first cavity 211 at the center, and a plurality of second cavities 212 are arranged around the first cavity 211;

[0058] Locking assembly 220 includes a pressure bar 221, a pawl 222, and a first guide post 223;

[0059] The pressure rod 221 is disposed in the second cavity 212;

[0060] The chuck 222 is disposed within the first cavity 211;

[0061] The pressure rod 221 and the claw 222 are fixedly connected by the connecting rod 224;

[0062] Connecting rod 224 is slidably connected to main body 210;

[0063] Two first guide posts 223 are disposed on both sides of the connecting rod 224 and are fixedly connected to the main body 210 respectively;

[0064] The two ends of the pressure rod 221 are slidably connected to the two first guide posts 223 respectively;

[0065] Locking assembly 220 also includes a fastening pin 225 and a compression spring 226;

[0066] The outer wall of the main body 210 has openings at positions corresponding to the connecting rod 224;

[0067] The opening is connected to the second cavity 212;

[0068] The fastening pin 225 is set inside the opening and is threaded into the opening;

[0069] The compression spring 226 is sleeved with the guide post, one end of which abuts against the inner wall of the second cavity 212 near the axis of the main body 210, and the other end abuts against the side of the pressure rod 221 near the axis of the main body 210.

[0070] The side of the chuck 222 closest to the axis of the main body 210 is curved;

[0071] A rubber pad 500 is provided on the side of the chuck 222 near the axis of the main body 210.

[0072] In this scheme, after the workpiece 400 to be milled is placed into the first cavity 211, multiple fastening pins 225 are tightened in sequence, causing the pressure rod 221 to move towards the axis of the main body 210, thereby driving the chuck 222 to press against the end of the side of the workpiece 400 to be milled and to reinforce it. In order to make the reinforcement effect better, the size of the chuck 222 needs to be determined according to the size of the workpiece 400 to be milled and the depth of the hole to be processed. Specifically, since the hole depth processed by each type of workpiece 400 to be milled is different, when the chuck 222 contacts the workpiece 400 to be milled, the chuck 222 should fully cover the depth direction of the hole and have a certain margin.

[0073] Regarding the shape and structure of the adjusting mechanism 300, such as Figure 1 and Figure 3 As shown:

[0074] The adjustment mechanism 300 includes a positioning plate 310, an adjustment stud 320, and a second guide post 330;

[0075] Multiple second guide columns 330 are arranged in a ring array around the axis of the main body 210, with one end fixedly connected to the upper part of the base 100 and the other end fixedly connected to the lower part of the main body 210.

[0076] The positioning disk 310 is slidably connected to multiple second guide posts 330 respectively;

[0077] The base 100 has a central hole;

[0078] The adjusting stud 320 is threaded into the center hole and extends upward to abut against the lower part of the positioning plate 310.

[0079] Specifically, by turning the adjusting stud 320, the positioning plate 310 slides up and down along the second guide post 330, which can adjust the position of the workpiece 400 to be milled after assembly, so that the chuck 222 is in close contact with the shaft end of the workpiece 400 to be milled on the side being machined, so that this tooling can be adapted to workpieces 400 to be milled of different heights.

[0080] More preferably, in order to facilitate the positioning of the workpiece 400 to be milled by the worker, the upper surface of the positioning disk 310 is provided with a number of annular protrusions of different sizes;

[0081] Multiple annular protrusions are centered on the axis of the main body 210;

[0082] The dimensions of the multiple annular protrusions are respectively set to correspond to the outer diameter of the workpiece 400 to be milled. After the workpiece 400 to be milled is inserted into the first cavity 211, the lower part is directly engaged with the corresponding annular protrusion, so that the worker can position the workpiece 400 to be milled and lock it with the fastening mechanism 200.

[0083] This solution offers at least the following advantages: By incorporating an adjustable fastening mechanism 200 and an adjusting mechanism 300, the solution effectively improves the adaptability of the tooling to workpieces with different milling hole sizes, significantly reducing the backlog of spare parts and storage pressure caused by the numerous specifications of traditional tooling, while also improving clamping efficiency and ease of operation. In the fastening mechanism 200, the jaws 222 contact the end of the workpiece 400 to be milled and are designed with rubber pads 500 to prevent damage to the workpiece surface and improve product yield. The adjusting mechanism 300, through the cooperation of the positioning plate 310 and the adjusting stud 320, achieves precise adjustment of the height of the workpiece 400 to be milled, further enhancing the versatility and practicality of the tooling.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A universal milling hole protection fixture, characterized in that: It includes a base (100), a fastening mechanism (200), and an adjustment mechanism (300); The fastening mechanism (200) and the adjusting mechanism (300) are arranged sequentially from top to bottom on the upper part of the base (100); The center of the fastening mechanism (200) can accommodate the workpiece (400) to be milled. The fastening mechanism (200) can limit the position of the workpiece (400) to be milled; The upper surface of the adjusting mechanism (300) abuts against the workpiece (400) to be milled; The adjustment mechanism (300) is capable of moving up and down.

2. The universal milling protection fixture according to claim 1, characterized in that: The fastening mechanism (200) includes a main body (210) and a locking assembly (220). Multiple sets of the locking components (220) are arranged in a circular array around the axis of the main body (210); The main body (210) is ring-shaped, with a first cavity (211) at the center, and a plurality of second cavities (212) are arranged around the first cavity (211).

3. The universal milling protection fixture according to claim 2, characterized in that: The locking assembly (220) includes a pressure bar (221), a claw (222), and a first guide post (223); The pressure rod (221) is disposed in the second cavity (212); The claw (222) is disposed in the first cavity (211); The pressure rod (221) and the claw (222) are fixedly connected by a connecting rod (224); The connecting rod (224) is slidably connected to the main body (210); Two first guide posts (223) are disposed on both sides of the connecting rod (224) and are fixedly connected to the main body (210) respectively; The two ends of the pressure rod (221) are slidably connected to the two first guide posts (223).

4. The universal milling protection fixture according to claim 3, characterized in that: The locking assembly (220) also includes a fastening pin (225) and a compression spring (226); The outer wall of the main body (210) is provided with an opening at a position corresponding to the connecting rod (224); The opening is connected to the second cavity (212); The fastening pin (225) is disposed in the opening and is threadedly connected to the opening; The compression spring (226) is sleeved with the guide post, one end of which abuts against the inner wall of the second cavity (212) near the axis of the main body (210), and the other end abuts against the side of the pressure rod (221) near the axis of the main body (210).

5. The universal milling protection fixture according to claim 4, characterized in that: The adjustment mechanism (300) includes a positioning plate (310), an adjustment stud (320), and a second guide post (330); Multiple second guide posts (330) are arranged in a ring array around the axis of the main body (210), with one end fixedly connected to the upper part of the base (100) and the other end fixedly connected to the lower part of the main body (210). The positioning disk (310) is slidably connected to multiple second guide posts (330); The base (100) has a central hole; The adjusting stud (320) is threaded to the center hole and extends upward to abut against the lower part of the positioning plate (310).

6. The universal milling protection fixture according to claim 5, characterized in that: The upper surface of the positioning disk (310) is provided with multiple annular protrusions of different sizes.

7. The universal milling protection fixture according to claim 6, characterized in that: The multiple annular protrusions are all centered on the axis of the main body (210).

8. The universal milling protection fixture according to claim 7, characterized in that: The dimensions of the plurality of annular protrusions are respectively set to correspond to the outer diameter of the workpiece (400) to be milled, which has different dimensions.

9. The universal milling protection fixture according to claim 8, characterized in that: The claw (222) is arc-shaped on the side closest to the axis of the main body (210).

10. The universal milling protection fixture according to claim 9, characterized in that: A rubber pad (500) is provided on the side of the claw (222) near the axis of the main body (210).

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