A bar milling device

Abstract

The utility model relates to the technical field of part milling groove processing, concretely relates to a bar stock milling groove device, through the setting of guide lug and guide cylinder, after guide cylinder drives guide lug to move to the center axis of arc groove and the center axis of locating cylinder inner hole mutually coincides, again through pusher cylinder drive pusher, the bar stock in arc groove is pushed along arc groove to locating cylinder inner hole. Relative to the prior art that directly inserts the bar stock into the locating cylinder, the present scheme reduces the phenomenon that the bar stock is inserted skew, and further improves the efficiency of subsequent milling groove.

Description

Technical Field

[0001] This utility model relates to the field of milling groove processing technology for parts, and specifically to a bar milling groove device. Background Technology

[0002] In the machining industry, milling grooves on small parts is a common yet delicate process. When faced with... Figure 1 When milling grooves on the outer periphery of the bar stock 200 shown, the existing bar milling device usually has a positioning cylinder 22 at the output end of the rotary cylinder 21. When milling, the bar stock 200 is inserted into the positioning cylinder 22, and the rotary cylinder 21 drives the bar stock 200 to rotate. As the bar stock 200 rotates, the milling cutter mills an annular groove 201 on the bar stock 200.

[0003] However, in existing bar milling devices, when inserting the bar 200 into the positioning cylinder 22, the bar 200 is usually inserted directly by a robot or manually. Because the bar 200 itself is small in size, it is easy for the bar 200 to be inserted crookedly during the insertion process into the positioning cylinder 22, which requires adjustment and thus reduces the efficiency of subsequent milling. Utility Model Content

[0004] The technical solution adopted by this utility model to solve its technical problem is: to provide a bar milling device, comprising:

[0005] A grooving assembly for grooving bar stock;

[0006] A rotating assembly, comprising a rotating cylinder and a positioning cylinder connected to the output end of the rotating cylinder, the positioning cylinder being used to hold the bar stock, and the rotating cylinder being used to drive the bar stock to rotate;

[0007] A guide cylinder is provided, the output end of which is connected to a guide protrusion. The guide protrusion is provided with an arc groove for placing the bar stock. The arc groove fits against the outer periphery of the bar stock. The guide cylinder is used to drive the guide protrusion to move until the central axis of the arc groove and the central axis of the inner hole of the positioning cylinder coincide.

[0008] The pushing assembly includes a pushing cylinder and a pushing block connected to the output end of the pushing cylinder. The pushing cylinder is used to drive the pushing block to push the bar material along the arc groove into the positioning cylinder.

[0009] Furthermore, the guide protrusion includes a first guide block and a second guide block, and the arc groove includes a first arc groove and a second arc groove. The first arc groove is formed on the first guide block, and the second arc groove is formed on the second guide block. A positioning cylinder is connected to the first guide block, and the output end of the positioning cylinder is connected to the second guide block. The positioning cylinder is used to drive the second guide block to move to the point where the first arc groove and the second arc groove cooperate to form an arc groove. The arc surface of the arc groove corresponds to the dominant arc.

[0010] Furthermore, the pusher block is provided with a positioning hole corresponding to the bar stock, and the bar stock is rotatably positioned within the positioning hole.

[0011] Furthermore, the positioning cylinder is connected to two telescopic cylinders arranged opposite each other, and the output end of the telescopic cylinder is connected to a clamping block. The telescopic cylinder is used to drive the clamping block to clamp the bar material.

[0012] Furthermore, the clamping block is provided with a V-shaped groove, and the groove wall of the V-shaped groove is in contact with the bar stock.

[0013] Furthermore, the output end of the telescopic cylinder is connected to a compression spring, the compression spring is connected to a telescopic block, the clamping block is provided with a telescopic groove, the compression spring is connected to the groove wall of the telescopic groove, and the telescopic block is slidably connected to the telescopic groove through the compression spring.

[0014] Furthermore, the milling assembly includes a moving cylinder and a milling motor connected to the output end of the moving cylinder. The output shaft of the milling motor is connected to a milling cutter. The moving cylinder is used to drive the milling cutter to move, and the milling motor is used to drive the milling cutter to rotate.

[0015] The beneficial effects of this invention are as follows: By using a guide protrusion and a guide cylinder, the guide cylinder drives the guide protrusion to move until the central axis of the arc groove and the central axis of the inner hole of the positioning cylinder coincide. Then, the pusher cylinder drives the pusher block to push the bar stock in the arc groove into the positioning cylinder. Compared with the prior art of directly inserting the bar stock into the positioning cylinder, this solution reduces the phenomenon of bar stock misalignment through the guidance of the arc groove, thereby improving the efficiency of subsequent milling. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 This is a three-dimensional structural diagram of the bar stock described in the background art;

[0018] Figure 2 An overall structural diagram of a bar milling device provided in an embodiment of this utility model;

[0019] Figure 3 for Figure 1 The overall structural diagram of the bar milling device shown from another perspective;

[0020] Figure 4 for Figure 1 Top view of the bar milling device shown;

[0021] Figure 5 for Figure 4 Sectional view along axis AA;

[0022] Figure 6 for Figure 4 A cross-sectional view of the rotating component shown;

[0023] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 10, milling assembly; 11, moving cylinder; 12, milling motor; 121, milling cutter; 20, rotating assembly; 21, rotating cylinder; 22, positioning cylinder; 23, telescopic cylinder; 231, clamping block; 2311, telescopic groove; 2312, V-groove; 232, compression spring; 233, telescopic block; 30, guide cylinder; 31, guide protrusion; 311, arc groove; 32, positioning cylinder; 33, second guide block; 331, second arc groove; 34, first guide block; 341, first arc groove; 40, pushing assembly; 41, pushing cylinder; 42, pushing block; 421, positioning hole; 200, bar stock; 201, annular groove. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Please refer to Figure 2 and Figure 3This utility model provides a bar milling device, including a milling assembly 10, a rotating assembly 20, a guide cylinder 30, and a pushing assembly 40. The milling assembly 10 is used to mill grooves on the bar stock 200. The milling assembly 10 includes a moving cylinder 11 and a milling motor 12 connected to the output end of the moving cylinder 11. The output shaft of the milling motor 12 is fixedly connected to a milling cutter 121. The moving cylinder 11 is used to drive the milling cutter 121 to move, and the milling motor 12 is used to drive the milling cutter 121 to rotate. During milling, the rotating cylinder 21 drives the positioning cylinder 22 to rotate the bar stock 200, the moving cylinder 11 drives the milling cutter 121 to approach the bar stock 200, and the milling motor 12 drives the milling cutter 121 to mill grooves on the outer periphery of the bar stock 200.

[0027] Please refer to Figure 3 The rotating assembly 20 includes a rotating cylinder 21 and a positioning cylinder 22 connected to the output end of the rotating cylinder 21. The positioning cylinder 22 is used to place the bar stock 200. The inner diameter of the positioning cylinder 22 fits against the outer circumference of the bar stock 200. The rotating cylinder 21 is used to drive the bar stock 200 to rotate.

[0028] Please refer to Figure 4 and Figure 5 The output end of the guide cylinder 30 is fixedly connected to a guide protrusion 31. The guide protrusion 31 is provided with an arc groove 311 for placing the bar 200. The arc groove 311 and the outer periphery of the bar 200 are in contact. The guide cylinder 30 is used to drive the guide protrusion 31 to move until the central axis of the arc groove 311 and the central axis of the inner hole of the positioning cylinder 22 coincide.

[0029] Please refer to Figure 5 The guide protrusion 31 includes a first guide block 34 and a second guide block 33. The arc groove 311 includes a first arc groove 341 and a second arc groove 331. The first arc groove 341 is formed on the first guide block 34, and the second arc groove 331 is formed on the second guide block 33. A positioning cylinder 32 is fixedly connected to the first guide block 34. The output end of the positioning cylinder 32 is fixedly connected to the second guide block 33. The positioning cylinder 32 is used to drive the second guide block 33 to move to the first arc groove 341 and the second arc groove 331 to cooperate to form the arc groove 311. The arc surface of the arc groove 311 corresponds to the superior arc. Specifically, in this embodiment, the cross-section of the inner wall of the first arc-shaped groove 341 is a semi-circular arc-shaped groove, and the straight line connecting the boundaries of the inner wall cross-section of the first arc-shaped groove 341 is perpendicular to the moving direction of the guide protrusion 31, so as to prevent the pusher block 42 from pushing the bar 200 into the inner hole of the insertion positioning cylinder 22 and the second guide block 33 from moving downward to the original position. After that, the guide cylinder 30 can drive the first guide block 34 to move directly to the original position without being affected by the bar 200. The first arc-shaped groove 341 disengages from the bar 200 as the first guide block 34 moves.

[0030] With the second guide block 33 in place, when the guide protrusion 31 guides the bar stock 200, the positioning cylinder 32 first drives the second guide block 33 to move until the first arc groove 341 and the second arc groove 331 cooperate to form an arc groove 311 that fits against the outer circumference of the bar stock 200. Then, the bar stock 200 is placed into the arc groove 311. Since the arc groove 311 formed by the first arc groove 341 and the second arc groove 331 is an arc with a superior arc, it can limit the bar stock 200 radially, making it less likely for the bar stock 200 to detach from the guide protrusion 31 and the second guide block 33 when it is pushed into the positioning cylinder 22.

[0031] When one end of the bar stock 200 is inserted into the positioning cylinder 22, the positioning cylinder 32 first drives the second guide block 33 to move downward, thereby causing the second arc-shaped groove 331 to disengage from the bar stock 200. Then, the guide cylinder 30 drives the first guide block 34 away from the bar stock 200. Since the first arc-shaped groove 341 is a semi-circular arc, and the straight line connecting the boundaries of the inner wall section of the first arc-shaped groove 341 is perpendicular to the moving direction of the guide protrusion 31, the radial restriction of the arc-shaped groove 311 on the bar stock 200 is released. The guide cylinder 30 can drive the first guide block 34 to move directly to its original position without being affected by the bar stock 200.

[0032] Please refer to Figure 2 and Figure 3 The feeding assembly 40 includes a feeding cylinder 41 and a pusher block 42 connected to the output end of the feeding cylinder 41. The feeding cylinder 41 is used to drive the pusher block 42 to push the bar stock 200 along the arc groove 311 into the positioning cylinder 22.

[0033] With the guide protrusion 31 and guide cylinder 30, the guide cylinder 30 drives the guide protrusion 31 to move until the central axis of the arc groove 311 and the central axis of the inner hole of the positioning hole 421 coincide. Then, the pusher cylinder 41 drives the pusher block 42 to push the bar stock 200 in the arc groove 311 into the positioning cylinder 22. Compared with the prior art of directly inserting the bar stock 200 into the positioning cylinder 22, this solution reduces the phenomenon of the bar stock 200 being inserted crookedly by guiding it through the arc groove 311, thereby improving the efficiency of subsequent milling.

[0034] Please refer to Figure 2 and Figure 3 The pusher block 42 is provided with a positioning hole 421 corresponding to the bar stock 200, and the bar stock 200 is rotatably positioned in the positioning hole 421. By setting the positioning hole 421, the end of the bar stock 200 is limited, further making the bar stock 200 less likely to move during milling.

[0035] Please refer to Figure 5The positioning cylinder 22 is connected to two telescopic cylinders 23 arranged opposite to each other. The output end of the telescopic cylinder 23 is connected to a clamping block 231. The telescopic cylinder 23 is used to drive the clamping block 231 to clamp the bar stock 200. After the bar stock 200 is pushed into the positioning cylinder 22, the two telescopic cylinders 23 drive the two clamping blocks 231 to cooperate in clamping the bar stock 200, thereby reducing the radial movement of the bar stock 200 during milling.

[0036] Please refer to Figure 6 and Figure 7 A compression spring 232 is fixedly connected to the output end of the telescopic cylinder 23. The compression spring 232 is connected to a telescopic block 233. The clamping block 231 is provided with a telescopic groove 2311. The compression spring 232 is connected to the groove wall of the telescopic groove 2311. The telescopic block 233 is slidably connected to the telescopic groove 2311 through the compression spring 232. With the arrangement of the telescopic block 233 and the compression spring 232, when the telescopic cylinder 23 drives the clamping block 231 to press the outer periphery of the bar stock 200, the compression spring 232 is compressed, which offsets part of the pressure on the outer periphery of the bar stock 200 and reduces the possibility of damage to the outer periphery of the bar stock 200 due to excessive clamping force.

[0037] Please refer to Figure 7 The clamping block 231 is provided with a V-groove 2312, and the groove wall of the V-groove 2312 contacts the bar stock 200. With the V-groove 2312 on the two clamping blocks 231, the two inclined surfaces of the V-groove 2312 contact the outer periphery of the bar stock 200, so that the center line of the bar stock 200 automatically aligns with the symmetrical center line of the V-groove 2312 on the two clamping blocks 231, thereby preventing the bar stock 200 from radially shifting relative to the positioning cylinder 22.

Claims

1. A bar milling device, characterized in that, include: A grooving assembly for grooving bar stock; A rotating assembly, comprising a rotating cylinder and a positioning cylinder connected to the output end of the rotating cylinder, the positioning cylinder being used to hold the bar stock, and the rotating cylinder being used to drive the bar stock to rotate; A guide cylinder is provided, the output end of which is connected to a guide protrusion. The guide protrusion is provided with an arc groove for placing the bar stock. The arc groove fits against the outer periphery of the bar stock. The guide cylinder is used to drive the guide protrusion to move until the central axis of the arc groove and the central axis of the inner hole of the positioning cylinder coincide. The pushing assembly includes a pushing cylinder and a pushing block connected to the output end of the pushing cylinder. The pushing cylinder is used to drive the pushing block to push the bar material along the arc groove into the positioning cylinder.

2. The bar milling device according to claim 1, characterized in that: The guide protrusion includes a first guide block and a second guide block, and the arc groove includes a first arc groove and a second arc groove. The first arc groove is formed on the first guide block, and the second arc groove is formed on the second guide block. A positioning cylinder is connected to the first guide block, and the output end of the positioning cylinder is connected to the second guide block. The positioning cylinder is used to drive the second guide block to move to the point where the first arc groove and the second arc groove cooperate to form an arc groove. The arc surface of the arc groove corresponds to the dominant arc.

3. The bar milling device according to claim 1, characterized in that: The pusher block is provided with a positioning hole corresponding to the bar stock, and the bar stock is rotatably positioned in the positioning hole.

4. The bar milling device according to claim 1, characterized in that: The positioning cylinder is connected to two telescopic cylinders arranged opposite each other. The output end of the telescopic cylinder is connected to a clamping block. The telescopic cylinder is used to drive the clamping block to clamp the bar material.

5. The bar milling device according to claim 4, characterized in that: The clamping block is provided with a V-shaped groove, and the groove wall of the V-shaped groove is in contact with the bar stock.

6. The bar milling device according to claim 4, characterized in that: The output end of the telescopic cylinder is connected to a compression spring, the compression spring is connected to a telescopic block, the clamping block is provided with a telescopic groove, the compression spring is connected to the groove wall of the telescopic groove, and the telescopic block is slidably connected to the telescopic groove through the compression spring.

7. The bar milling device according to claim 1, characterized in that: The milling assembly includes a moving cylinder and a milling motor connected to the output end of the moving cylinder. The output shaft of the milling motor is connected to a milling cutter. The moving cylinder is used to drive the milling cutter to move, and the milling motor is used to drive the milling cutter to rotate.

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