Shockproof mechanism and bar feeder

Abstract

The utility model discloses an anti-vibration mechanism and a bar feeder, the anti-vibration mechanism comprises a fixed plate, and the fixed plate is provided with a through hole for a bar to pass through. The two sliding assemblies are located on the two sides of the through hole correspondingly, the sliding assemblies can linearly reciprocate in the first direction along the fixing plate, and rolling wheels are rotationally connected to the sliding assemblies. The air cylinder is connected with the sliding assemblies and used for driving the two sliding assemblies to move oppositely or oppositely. The connecting rod assembly comprises a swing rod and a connecting rod, the middle position of the swing rod is pivoted with the fixed plate, one sliding assembly is pivoted with one end of the swing rod, and the connecting rod is fixedly connected with the other sliding assembly and is pivoted with the other end of the swing rod. The anti-vibration mechanism can ensure the synchronous action when the rollers are opened and closed, meanwhile, vibration force cannot be directly conducted to the air cylinder providing power, and the service life of the air cylinder can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bar feeder technology, and in particular to a shockproof mechanism and a bar feeder. Background Technology

[0002] A bar feeder is a device that pushes bar-shaped materials to be processed into the machine tool spindle. When the bar material enters the machine tool, it experiences some vibration and shaking, which becomes more pronounced at higher speeds. Therefore, the bar feeder has a built-in anti-vibration mechanism at its front end. This mechanism clamps the bar material, keeping it concentric with the lathe spindle regardless of diameter. Currently, the anti-vibration mechanism uses a cylinder to move four rollers to clamp or release the bar material. However, the vibration generated by the rollers is transmitted to the cylinder, affecting its lifespan. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a shock-absorbing mechanism and a bar feeder. The shock-absorbing mechanism can ensure the synchronous action of the rollers when they open and close, and at the same time prevent the vibration force from being directly transmitted to the cylinder that provides power, thereby extending the cylinder's life.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a shock-absorbing mechanism, comprising:

[0005] A fixing plate having through holes for the rod to pass through;

[0006] The sliding assembly has two components, which are respectively located on both sides of the through hole. The sliding assembly can reciprocate along a straight line in a first direction along the fixed plate. A roller is rotatably connected to the sliding assembly.

[0007] A cylinder, which is connected to the sliding assembly and is used to drive the two sliding assemblies to move relative to or away from each other;

[0008] A linkage assembly, comprising a swing rod and a connecting rod, wherein the middle position of the swing rod is pivotally connected to the fixed plate, one of the sliding components is pivotally connected to one end of the swing rod, and the connecting rod and another of the sliding components are fixedly connected and pivotally connected to the other end of the swing rod.

[0009] The beneficial effects of this utility model are as follows:

[0010] A single cylinder drives two sliding components to move simultaneously, enabling the rollers to quickly clamp and release the bar. The added connecting rod assembly, employing a hinged structure, disperses the vibration force, preventing it from being directly transmitted to the cylinder and extending its lifespan.

[0011] Furthermore, both the connecting rod and the sliding assembly pivotally connected to the swing rod are fixed with pivot shafts. The swing rod has U-shaped pivot grooves at both ends, and the pivot shafts are inserted into these grooves. Since both pivot shafts can only move back and forth in a straight line, the U-shaped structure of the pivot grooves prevents the pivot shafts and swing rod from jamming.

[0012] Furthermore, the shock-absorbing mechanism also includes an adjustment component, which is used to adjust the minimum distance at which the two sliding components can approach each other, that is, to limit the position of the roller when it is clamping the bar.

[0013] The adjustment component includes:

[0014] A guide member, which is fixed to one of the sliding components and extends along the movement line of the sliding component;

[0015] An adjusting screw, one end of which is fixedly connected to another sliding assembly, the adjusting screw passing through the guide and being able to move axially along the guide;

[0016] An adjusting nut is located between the guide and the fixed end of the adjusting screw and the sliding assembly, and the adjusting nut and the adjusting screw are threadedly connected.

[0017] Furthermore, the adjusting assembly also includes an indicator dial, which is fixed to the sliding assembly that is fixed to the adjusting screw. The position of the adjusting nut can be viewed through the indicator dial.

[0018] Furthermore, the other end of the adjusting screw passes through the guide and is fixed with a limit nut. Adjusting the position of the limit nut is equivalent to adjusting the maximum distance the two sliding components can move in opposite directions, which is also the open position of the roller.

[0019] Furthermore, the sliding assembly includes a sliding block and a connecting block that are fixedly connected. The sliding block slides along the fixed plate. The roller and the connecting rod are connected to the sliding block, and the cylinder is connected to the connecting block.

[0020] Furthermore, a slide rail is fixed to the fixed plate, and a slider that slides along the slide rail is fixed to the sliding block. The slide rail and the slider cooperate with each other to guide the movement of the sliding assembly.

[0021] Furthermore, the slider is located at the upper end of the corresponding sliding block, and the connecting rod is fixed at the lower end of one of the sliding blocks. At this point, the slider and connecting rod are located at the upper and lower ends of the through hole, respectively, and will not interfere with the rod.

[0022] This utility model also discloses a bar feeder, including an end plate, on which the above-mentioned anti-vibration mechanism is fixed.

[0023] Furthermore, the fixing plate is secured to the end plate by at least four locking screws, increasing the locking strength. A surrounding plate is fixed to the end plate, forming a concealed design to prevent lubricating oil from splashing out. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the shock-absorbing mechanism in an embodiment of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the shock-absorbing mechanism according to another embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the swing rod in an embodiment of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the shock-absorbing mechanism of this utility model embodiment from another angle.

[0028] In the picture:

[0029] 1. Fixing plate; 11. Through hole; 12. Slide rail;

[0030] 2a. First sliding component; 2b. Second sliding component; 21. Sliding block; 22. Connecting block; 23. Slider;

[0031] 3. Cylinder;

[0032] 4. Linkage assembly; 41. Swing rod; 411. Pivot groove; 42. Connecting rod; 43. Pivot shaft;

[0033] 5. Adjustment assembly; 51. Guide component; 52. Adjustment screw; 53. Adjustment nut; 54. Indicator dial; 55. Limit nut;

[0034] 6. Rollers. Detailed Implementation

[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0036] Example

[0037] This utility model discloses a shock-absorbing mechanism that is fixed to the end plate of a bar feeder and is installed internally. In addition to being aesthetically pleasing, it also avoids the lubricating oil splashing that may occur when an exposed shock-absorbing mechanism is in operation.

[0038] See appendix Figure 1As shown, the shock-absorbing mechanism includes a fixed plate 1, a sliding assembly, a cylinder 3, and a connecting rod assembly 4.

[0039] The fixed plate 1 has a through hole 11 for the rod to pass through, and the rod is transported through this through hole 11. Two sliding assemblies are provided, located on either side of the through hole 11. The sliding assemblies can reciprocate linearly along the fixed plate 1 in a first direction. Rollers 6 are rotatably connected to the sliding assemblies. When the two sliding assemblies approach each other, the rollers 6 clamp the rod, maintaining its stability. A cylinder 3 is connected to the sliding assemblies and is used to drive the two sliding assemblies to move relative to or away from each other. The cylinder 3 provides power for the movement of the two sliding assemblies. (See Appendix) Figure 2 As shown, the linkage assembly 4 includes a swing rod 41 and a connecting rod 42. The middle position of the swing rod 41 is pivotally connected to the fixed plate 1. A sliding assembly is pivotally connected to one end of the swing rod 41. The connecting rod 42 and another sliding assembly are fixedly connected and pivotally connected to the other end of the swing rod 41.

[0040] In this embodiment, a cylinder 3 drives two sliding components to operate simultaneously, thereby enabling the roller 6 to quickly clamp and release the bar. The added connecting rod assembly 4, with its hinged structure, disperses the vibration force, preventing it from being directly transmitted to the cylinder 3 and extending its lifespan.

[0041] Each sliding component is equipped with two rollers 6, which are distributed vertically. At this time, the rollers 6 on the two sliding components are arranged in a rectangular shape, which can clamp the bar.

[0042] The two sliding components are respectively the first sliding component 2a and the second sliding component 2b. For example, the housing of the cylinder 3 is fixed to the first sliding component 2a, and the piston rod of the cylinder 3 is fixed to the second sliding component 2b. When the cylinder 3 extends or retracts, it drives the two sliding components to move synchronously relative to each other or in opposite directions. The first sliding component 2a is fixedly connected to the connecting rod 42, and the second sliding component 2b is pivotally connected to the swing rod 41.

[0043] See appendix Figure 3 As shown, both the connecting rod 42 and the sliding assembly (the second sliding assembly 2b in this embodiment) pivotally connected to the swing rod 41 are fixed with pivot shafts 43. The swing rod 41 has U-shaped pivot grooves 411 at both ends, and the pivot shafts 43 are inserted into the pivot grooves 411. The pivot shafts 43 can rotate relative to the pivot grooves 411, and will also generate displacement. Because both pivot shafts 43 can only move back and forth in a straight line, the pivot grooves 411 are designed as U-shaped structures to prevent the pivot shafts 43 and the swing rod 41 from jamming.

[0044] The two sliding components have the same structure; see appendix. Figure 2As shown, the sliding assembly includes a sliding block 21 and a connecting block 22 fixedly connected. The sliding block 21 slides along the fixed plate 1. The roller 6 and the connecting rod 42 are connected to the sliding block 21, and the cylinder 3 is connected to the connecting block 22. The sliding block 21 is a flat plate structure. The roller 6 is connected to the sliding block 21 via a rotating shaft, which is fixed to the sliding block 21. The roller 6 can rotate around the rotating shaft. The roller 6 is located on the side of the slide away from the fixed plate 1, and the connecting block 22 is fixed on the side of the slide closer to the fixed block. The connecting block 22 is an L-shaped sheet metal part.

[0045] A slide rail 12 is fixed on the fixed plate 1, and a slider 23 that slides along the slide rail 12 is fixed on the sliding block 21. Through the cooperation of the slider 23 and the slide rail 12, the movement of the sliding component is guided, so that the sliding component can only move along the slide rail.

[0046] The slider 23 is located at the upper end of the corresponding slider block 21, and the connecting rod 42 is fixed at the lower end of a slider block 21. At this time, the slider 23 and the connecting rod 42 are located on the upper and lower sides of the through hole 11 respectively, and will not interfere with the passage of the rod.

[0047] In one embodiment, the shock-absorbing mechanism further includes an adjustment component 5, which is used to adjust the minimum distance at which the two sliding components can approach each other, that is, to limit the position of the roller 6 when it is clamping the bar.

[0048] See appendix Figure 4 As shown, the adjusting assembly 5 includes a guide 51, an adjusting screw, and an adjusting nut 53. The guide 51 is fixed to the second sliding assembly 2b and extends along the movement line of the sliding assembly. One end of the adjusting screw 52 is fixedly connected to the first sliding assembly 2a, and the adjusting screw 52 passes through the guide 51 and can move axially along the guide 51. The adjusting nut 53 is located between the guide 51 and the fixed end of the adjusting screw 52 and the first sliding assembly 2a, and the adjusting nut 53 and the adjusting screw 52 are threadedly connected.

[0049] When the sliding components approach each other, the adjusting nut 53 on the adjusting screw 52 moves synchronously toward the guide 51. When the adjusting nut 53 abuts against the guide 51, the two sliding components can no longer approach each other, the cylinder 3 stops working, and the roller 6 reaches the clamping position. When it is necessary to change the clamping position of the roller 6, rotate the adjusting nut 53 to move it along the adjusting screw 52, ​​changing the initial distance between the adjusting nut 53 and the guide 51.

[0050] The adjusting assembly 5 also includes an indicator dial 54, which is fixed to a sliding assembly that is fixed to the adjusting screw 52, ​​namely the first sliding assembly 2a. The indicator dial 54 is located directly below the adjusting nut 53, and the indicator dial 54 has a scale along the sliding direction of the sliding assembly. The position of the adjusting nut 53 can be viewed through the indicator dial 54.

[0051] In one embodiment, the other end of the adjusting screw 52 passes through the guide 51 and is fixed with a limiting nut 55. When the limiting nut 55 and the guide 51 abut, the two sliding components move to the maximum distance in opposite directions, the roller 6 reaches the open position, and the cylinder 3 stops working. Adjusting the position of the limiting nut 55 is equivalent to adjusting the maximum distance the two sliding components move in opposite directions, which is the open position of the roller 6.

[0052] The adjustment component 5 in this embodiment has a simple structure. By using the simple adjustment nut 53 and adjustment screw 52, ​​the movement distance of the sliding component can be adjusted, which means controlling the opening position and clamping position of the roller 6.

[0053] In one embodiment, the present invention also discloses a bar feeder, including an end plate, on which the above-mentioned anti-vibration mechanism is fixed.

[0054] The fixing plate 1 is secured to the end plate by at least four locking screws to improve locking strength. A surrounding plate is fixed to the end plate, and the shock-absorbing mechanism is located in the cavity formed by the baffle and the surrounding plate, forming a concealed design to prevent lubricating oil from splashing out.

[0055] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A shock-absorbing mechanism, characterized in that: include: A fixing plate having through holes for the rod to pass through; The sliding assembly has two components, which are respectively located on both sides of the through hole. The sliding assembly can reciprocate along a straight line in a first direction along the fixed plate. A roller is rotatably connected to the sliding assembly. A cylinder, which is connected to the sliding assembly and is used to drive the two sliding assemblies to move relative to or away from each other; A linkage assembly, comprising a swing rod and a connecting rod, wherein the middle position of the swing rod is pivotally connected to the fixed plate, one of the sliding components is pivotally connected to one end of the swing rod, and the connecting rod and another of the sliding components are fixedly connected and pivotally connected to the other end of the swing rod.

2. The shock-absorbing mechanism according to claim 1, characterized in that: Both the connecting rod and the sliding assembly pivotally connected to the swing rod are fixed with pivot shafts. The swing rod has U-shaped pivot grooves at both ends, and the pivot shaft is inserted into the pivot groove.

3. The shock-absorbing mechanism according to any one of claims 1-2, characterized in that: The shock-absorbing mechanism further includes an adjustment component, which includes: A guide member, which is fixed to one of the sliding components and extends along the movement line of the sliding component; An adjusting screw, one end of which is fixedly connected to another sliding assembly, the adjusting screw passing through the guide and being able to move axially along the guide; An adjusting nut is located between the guide and the fixed end of the adjusting screw and the sliding assembly, and the adjusting nut and the adjusting screw are threadedly connected.

4. The shock-absorbing mechanism according to claim 3, characterized in that: The adjustment assembly also includes an indicator dial, which is fixed to the sliding assembly that is fixed to the adjustment screw.

5. The shock-absorbing mechanism according to claim 3, characterized in that: The other end of the adjusting screw passes through the guide and is fixed with a limit nut.

6. The shock-absorbing mechanism according to claim 1, characterized in that: The sliding assembly includes a sliding block and a connecting block that are fixedly connected. The sliding block slides along the fixed plate. The roller and the connecting rod are connected to the sliding block. The cylinder is connected to the connecting block.

7. The shock-absorbing mechanism according to claim 6, characterized in that: A slide rail is fixed on the fixed plate, and a slider that slides along the slide rail is fixed on the sliding block.

8. The shock-absorbing mechanism according to claim 7, characterized in that: The slider is located at the upper end of the corresponding sliding block, and the connecting rod is fixed at the lower end of one of the sliding blocks.

9. A bar feeder, characterized in that: Includes an end plate, on which the shock-absorbing mechanism according to any one of claims 1-8 is fixed.

10. The bar feeder according to claim 9, characterized in that: The fixing plate is fixed to the end plate by at least four locking screws, and a surrounding plate is fixed on the end plate to surround the shock-absorbing mechanism.

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