Chain type clamping mechanism for machining transversely-fixed irregular cylinder for machining center

Abstract

The utility model discloses a chain type clamping mechanism for machining a transversely-fixed irregular cylinder for a machining center. The chain type clamping mechanism comprises a working platform, a lower die, a workpiece, a chain hook, a pressing device and a chain. A lower die is arranged at the upper end of the working platform; a chain hook is arranged on the left side of the front side of the upper end of the working platform; the workpiece is arranged on the lower die; the chain is pressed on the workpiece, the left side is fixed on the chain hook, and the right side is fixed on the pressing device. The device is simple in structure, reasonable in design, convenient to use and rapid to install, a workpiece is fixed through the chain, vibration is small during machining, the machining precision is high, and therefore low-cost, high-efficiency, high-precision and high-quality machining is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of chain clamping, in particular to a chain clamping mechanism for horizontally fixing the processing of irregular cylinders in a machining center. Background Art

[0002] Most of the existing round pipes, tees, valve bodies, etc. are processed through special equipment. When using an ordinary machining center for processing, professional tooling needs to be made, with one tooling corresponding to one product, resulting in high costs, poor mobility, unguaranteed accuracy, inconvenient milling, and great limitations. Summary of the Invention

[0003] The purpose of the utility model is to provide a chain clamping mechanism for horizontally fixing the processing of irregular cylinders in a machining center.

[0004] To achieve the above purpose, the utility model adopts the following content:

[0005] A chain clamping mechanism for horizontally fixing the processing of irregular cylinders in a machining center, comprising: a working platform, a lower die, a workpiece, a chain hook, a lower presser, and a chain; a lower die is arranged at the upper end of the working platform; a chain hook is arranged on the left side of the front side of the upper end of the working platform, and a lower presser is arranged on the right side; the workpiece is arranged on the lower die; the chain presses on the workpiece, with the left side fixed on the chain hook and the right side fixed on the lower presser.

[0006] Preferably, the chain hook and the lower presser are fixed on the working platform by bolts or T-shaped blocks.

[0007] Preferably, the lower die is fixed on the working platform by bolts or T-shaped blocks, and the upper end of the lower die is V-shaped.

[0008] Preferably, the lower presser includes a bottom plate, a guard plate, an upper cover, a ratchet gear, a bearing, a threaded sleeve, a middle plate, a lead screw, a pressing plate, a pressing hook, a ratchet buckle, a spring, and a lever; a guard plate is arranged around the upper end of the bottom plate; an upper cover is arranged on the upper end of the guard plate; a ratchet gear is arranged in the middle of the upper cover; ratchet buckles are arranged on the front and rear sides on the right side of the ratchet gear, and the ratchet buckles cooperate with the ratchet gear; a spring is arranged on the outer side of the ratchet buckle; a lever is arranged in the middle of the two ratchet buckles, and the lever cooperates with the two ratchet buckles.

[0009] A bearing is arranged in the middle of the ratchet gear; a nut is arranged at the upper end of the bearing; the bottom end of the bearing extends downward through the upper cover; a threaded sleeve is arranged on the bearing; a middle plate is arranged at the bottom end of the threaded sleeve, and both sides of the middle plate are fixed on the two side guard plates; a lead screw is arranged at the bottom end of the middle plate, and the lead screw passes through the middle plate and is arranged in the threaded sleeve; a pressing plate is arranged at the bottom end of the lead screw, and the left side of the pressing plate passes through the left side guard plate; a pressing hook is arranged at the left bottom end of the pressing plate.

[0010] Preferably, the lead screw and the threaded sleeve are fixed by bolts.

[0011] Preferably, it further includes a through hole; a through hole is arranged on the left side of the bottom plate.

[0012] The device has a simple structure, reasonable design, convenient use, quick installation, fixes the workpiece through a chain, and has small vibration and high machining accuracy during processing, thus completing low-cost, high-efficiency, high-precision and high-quality machining.

[0013] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following takes the preferred embodiment of the present invention and combines the drawings to describe in detail as follows. Brief Description of the Drawings

[0014] The following further details the specific implementation manners of the present invention in conjunction with the drawings.

[0015] Figure 1 It is a schematic structural diagram of a chain clamping mechanism for horizontally fixing irregular cylindrical machining on a machining center according to the present invention.

[0016] Figure 2 It is a schematic structural diagram inside the lower press.

[0017] Figure 3 It is the front view of the lower press.

[0018] Figure 4 It is the top view of the lower press.

[0019] In the figure, each reference numeral is:

[0020] 1 - working platform, 2 - lower press, 21 - bottom plate, 22 - guard plate, 23 - upper cover, 24 - ratchet gear, 25 - bearing, 26 - nut, 27 - threaded sleeve, 28 - middle plate, 29 - lead screw, 210 - pressing plate, 211 - pressing hook, 212 - through hole, 213 - ratchet buckle, 214 - spring, 215 - lever, 3 - lower die, 4 - workpiece, 5 - chain hook, 6 - chain. Detailed Description of the Preferred Embodiment

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] As Figures 1 to 4 shown, a chain clamping mechanism for machining irregular cylinders horizontally fixed on a machining center includes: a work platform 1, a lower die 3, a workpiece 4, a chain hook 5, a lower presser 2, and a chain 6; a lower die 3 is arranged at the upper end of the work platform 1; a chain hook 5 is arranged on the left side of the front side of the upper end of the work platform 1, and a lower presser 2 is arranged on the right side; the workpiece 4 is arranged on the lower die 3; the chain 6 presses on the workpiece 4, and the left side is fixed on the chain hook 5 and the right side is fixed on the lower presser 2.

[0026] Further, the chain hook 5 and the lower presser 2 are fixed on the work platform 1 by bolts.

[0027] Further, the lower die 3 is fixed on the work platform 1 by bolts, and the upper end of the lower die 3 is V-shaped.

[0028] Further, the presser 2 includes a bottom plate 21, a guard plate 22, an upper cover 23, a ratchet gear 24, a bearing 25, a threaded sleeve 27, a middle plate 28, a screw rod 29, a pressure plate 210, a pressure hook 211, a ratchet buckle 213, a spring 214 and a lever 215; a guard plate 22 is arranged around the upper end of the bottom plate 21; an upper cover 23 is arranged at the upper end of the guard plate 22; a ratchet gear 24 is arranged in the middle of the upper cover 23; ratchet buckles 213 are arranged on both the front and rear sides of the right side of the ratchet gear 24, and the ratchet buckle 213 and the ratchet gear 24 are used in coordination; a spring 214 is arranged on the outer side of the ratchet buckle 213; a lever 215 is arranged in the middle of the two ratchet buckles 213, and the lever 215 and the two ratchet buckles 213 are used in coordination;

[0029] A bearing 25 is arranged in the middle of the ratchet gear 24; a nut 26 is arranged at the upper end of the bearing 25; the bottom end of the bearing 25 extends downward through the upper cover 23; a threaded sleeve 27 is arranged on the bearing 25; a middle plate 28 is arranged at the bottom end of the threaded sleeve 27, and both sides of the middle plate 28 are fixed on the guard plates 22 on both sides; a screw rod 29 is arranged at the bottom end of the middle plate 28, and the screw rod 29 passes through the middle plate 28 and is arranged in the threaded sleeve 27; a pressure plate 210 is arranged at the bottom end of the screw rod 29, and the left side of the pressure plate 210 passes through the left guard plate 22; a pressure hook 211 is arranged on the left side of the bottom end of the pressure plate 210.

[0030] Furthermore, the screw rod 29 and the threaded sleeve 27 are fixed by bolts.

[0031] Furthermore, it also includes a through hole 212; the through hole 212 is set on the left side of the bottom plate 21, and the through hole is set to facilitate fixing on the working platform 1 by bolts.

[0032] When in use, fix the chain hook 5 and the down-presser 2 on the working platform 1 by screws, hang the chain 6 on the chain hook 5, wrap the chain 6 around the upper half of the workpiece 4, and fix the other end on the down-presser 2. Use a wrench to rotate the nut 26 on the down-presser 2 clockwise to complete the workpiece clamping (counterclockwise is the opposite), and finally lock the ratchet gear 24 structure to prevent the chain 6 from retreating and loosening.

[0033] By moving the lever 215 , the ratchet gear 24 can be rotated forward and reversely, and the ratchet gear 24 can be prevented from reversing so that the pressure plate 210 is not easily loosened, thereby achieving uniform force on the workpiece 4 and preventing it from being affected by vibration during processing, thereby ensuring the accuracy of the workpiece 4 .

[0034] When the lever 215 is toggled, the lever 215 can be toggled left to right and right to left, respectively, which is more convenient and quick.

[0035] When the threaded sleeve 27 is rotated, the internal thread pushes the lower lead screw 29, thereby pressing down the pressure plate 210 to complete the locking of the workpiece 4.

[0036] By providing the middle plate 28, it is to prevent the threaded sleeve 27 from shaking when the nut 26 is rotated.

[0037] The structure of this device is simple, the design is reasonable, it is convenient to use, quick to install, fixes the workpiece through a chain, and has small vibration during processing and high machining accuracy, thus completing low-cost, high-efficiency, high-precision, and high-quality machining.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0039] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A chain clamping mechanism for transversely fixing irregular cylinders in a machining center, characterized in that: It includes: a working platform, a lower die, a workpiece, a chain hook, a lower presser and a chain; the lower die is arranged at the upper end of the working platform; the chain hook is arranged on the left side of the front side of the upper end of the working platform, and the lower presser is arranged on the right side; the workpiece is arranged on the lower die; the chain is pressed on the workpiece, and the left side is fixed on the chain hook, and the right side is fixed on the lower presser.

2. A chain clamping mechanism for transversely fixing irregular cylinders for machining centers according to claim 1, characterized in that: The chain hook and the push-down device are fixed on the working platform by bolts or T-blocks.

3. A chain clamping mechanism for transversely fixing irregular cylinders for machining centers according to claim 1, characterized in that: The lower die is fixed on the working platform by bolts or T-blocks, and the upper end of the lower die is V-shaped.

4. A chain clamping mechanism for transversely fixing irregular cylinders for machining centers according to claim 1, characterized in that: The presser comprises a bottom plate, a guard plate, an upper cover, a ratchet gear, a bearing, a threaded sleeve, a middle plate, a screw rod, a pressure plate, a pressure hook, a ratchet buckle, a spring and a lever; a guard plate is arranged around the upper end of the bottom plate; an upper cover is arranged on the upper end of the guard plate; a ratchet gear is arranged in the middle of the upper cover; ratchet buckles are arranged on both the front and rear sides of the right side of the ratchet gear, and the ratchet buckle and the ratchet gear are used in coordination; a spring is arranged on the outside of the ratchet buckle; a lever is arranged in the middle of the two ratchet buckles, and the lever and the two ratchet buckles are used in coordination; A bearing is arranged in the middle of the ratchet gear; a nut is arranged at the upper end of the bearing; the bottom end of the bearing extends downward through the upper cover; a threaded sleeve is arranged on the bearing; a middle plate is arranged at the bottom end of the threaded sleeve, and both sides of the middle plate are fixed on the guard plates on both sides; a screw rod is arranged at the bottom end of the middle plate, and the screw rod passes through the middle plate and is arranged in the threaded sleeve; a pressure plate is arranged at the bottom end of the screw rod, and the left side of the pressure plate passes through the left guard plate; a pressure hook is arranged on the left side of the bottom end of the pressure plate.

5. A chain clamping mechanism for transversely fixing irregular cylinders for machining centers according to claim 4, characterized in that: The screw rod and the threaded sleeve are fixed by bolts.

6. A chain clamping mechanism for transversely fixing irregular cylinders for machining centers according to claim 4, characterized in that: It also includes a through hole; the through hole is arranged on the left side of the bottom plate.

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