Tension control mechanism of low-speed wire cutting machine

Abstract

The utility model relates to the technical field of low-speed wire cutting machines, in particular to a tension control mechanism of a low-speed wire cutting machine, which comprises a mounting support, a displacement component and a tension wheel component, the displacement component is arranged on the inner side of the mounting support, and one side of the displacement component is slidably connected with the tension wheel component. A manual control assembly is arranged at the top of the displacement assembly, and a positioning assembly is slidably connected to the position, located on one side of the tension wheel assembly, of the periphery of the displacement assembly; the displacement assembly comprises a fixing frame, grooves are formed in the top and the bottom in the fixing frame, guide rods are connected into the grooves through bolts, sliding blocks are slidably connected to the peripheries of the guide rods, and annular air cushion strips are connected to the positions, located on one sides of the sliding blocks, of the peripheries of the guide rods in a sleeving mode. A manual adjusting control mechanism can be added, so that the flexibility of tension control is improved, the stability of tension control is improved, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slow-moving wire cutting machines, in particular to a tension control mechanism for slow-moving wire cutting machines. Background Art

[0002] Wire cutting is a type of electric spark wire cutting. It uses a continuously moving thin metal wire as an electrode to perform pulse spark discharge to erode metal and cut the workpiece into shape. It is mainly used to process various complex and precise workpieces. In actual use, the tension of the electrode wire needs to be adjusted through the tension control mechanism according to actual processing needs.

[0003] At present, when using a tension control mechanism, there is a lack of a manual control mechanism. Usually, the tension control mechanism is controlled by an electric drive mechanism. However, when the drive mechanism is damaged or there is a partial power outage, it is difficult to control and adjust the tension. Therefore, a tension control mechanism for a slow-feed wire cutting machine is proposed, which can increase a manual adjustment control mechanism, thereby increasing the flexibility of tension control, while improving the stability of tension control and improving the use effect. Summary of the invention

[0004] In view of the problems in the prior art, the utility model provides a tension control mechanism for a slow-feed wire cutting machine, so as to add a manual adjustment control mechanism, thereby increasing the flexibility of tension control, while improving the stability of tension control and enhancing the use effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a tension control mechanism for a slow-feed wire cutting machine, comprising a mounting bracket, a displacement assembly and a tension wheel assembly, wherein the inner side of the mounting bracket is provided with a displacement assembly, one side of the displacement assembly is slidably connected with the tension wheel assembly, a hand control assembly is provided on the top of the displacement assembly, and the periphery of the displacement assembly is located on one side of the tension wheel assembly and is slidably connected with a positioning assembly;

[0006] The displacement assembly includes a fixing frame, the top and bottom of the fixing frame are provided with grooves, a guide rod is connected to the groove by bolts, the periphery of the guide rod is slidably connected to a sliding block, the periphery of the guide rod is located on one side of the sliding block and is sleeved with an annular air cushion strip, and the periphery of the guide rod is located on the other side of the sliding block and is sleeved with a return spring.

[0007] By adopting the above technical solution, the position of the sliding block is controlled and adjusted through the deformation and elastic force generated by inflation, thereby adding the function of manually adjusting the tension, adapting to different working environments and scenes, and increasing the flexibility of use.

[0008] Specifically, the tension wheel assembly includes a mounting plate, and the mounting plate is connected to a sliding block by bolts, a mounting block is slidably connected inside the mounting plate, and the mounting block mounts the tension wheel through a bearing, a spring is installed on one side of the mounting block inside the mounting plate through a spring seat, and one side of the mounting plate is threadedly connected to a tightening screw corresponding to the mounting block through a reserved threaded hole.

[0009] By adopting the above technical solution, the sliding and elastic connection can be used to increase the activity space of the tension wheel, thereby improving the fault tolerance of manual tension control operation.

[0010] Specifically, a screw rod is installed between the grooves in the fixing frame through a bearing, a corresponding screw block is arranged on the periphery of the screw rod, one side of the fixing frame is connected to the servo motor through bolts, and the servo motor is connected to the screw rod through a driving shaft.

[0011] By adopting the above technical solution, the ball screw can be used to drive the tension wheel assembly to move, thereby realizing automatic control and adjustment action.

[0012] Specifically, the hand control assembly includes a fixed seat, and the air outlet end of the fixed seat is connected to the annular air cushion strip, an elastomer is arranged on the top of the fixed seat, a one-way valve is arranged on the air inlet end of the fixed seat, an air nozzle is arranged on one side of the fixed seat, and a protective cover is arranged on the outer periphery of the elastomer on the top of the fixed seat.

[0013] By adopting the above technical solution, the elastic deformation caused by pressing can be used to quickly perform manual inflation and deflation operations, thereby improving the convenience of operating the hand-controlled component.

[0014] Specifically, one side of the wire block is connected with a guide block corresponding to the tension wheel assembly through bolts, and an electromagnet is arranged inside the guide block.

[0015] By adopting the above technical solution, the magnetic force can be used to drive the tension wheel assembly to be fixedly connected to perform automatic tension control and adjustment.

[0016] Specifically, the positioning assembly includes a U-shaped plate, the top and bottom of the U-shaped plate are connected to the slider by bolts, the top and bottom of the U-shaped plate are threadedly connected to the positioning screw through reserved threaded holes, the top and bottom surfaces of the fixing frame are provided with slideways, and the U-shaped plate is slidably connected to the slideways through the inner slider.

[0017] By adopting the above technical solution, an auxiliary positioning operation can be formed to improve the accuracy of the manual tension adjustment operation.

[0018] Specifically, pulleys corresponding to the tension wheel assembly are installed on the top and bottom of the displacement assembly on the inner side of the mounting bracket through bearings.

[0019] By adopting the above technical solution, it is easy to form a guiding mechanism, so that the tension of the electrode wire can be adjusted by passing through the tension wheel.

[0020] Beneficial effects of the utility model:

[0021] The utility model describes a tension control mechanism for a slow-feeding wire cutting machine, which, through the provision of a fixed frame, a groove, a guide rod, an annular air cushion strip and a reset spring, can utilize a hand-controlled component to perform rapid manual inflation, and achieves manual tension control and adjustment through the deformation and elastic driving force generated by inflation, thereby increasing the flexibility of tension control to facilitate coping with different usage scenarios, thereby improving the use effect of the control mechanism.

[0022] The utility model discloses a tension control mechanism for a slow-feed wire cutting machine, which, through the setting of a mounting plate, a mounting hole, a spring and a tightening screw, can increase a certain activity space of the tension wheel during the manual tension adjustment operation, thereby improving the flexibility of the tension adjustment, avoiding damage to the electrode wire caused by excessive tension, and improving the fault tolerance space of the manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic cross-sectional structural diagram of the displacement assembly of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the tension wheel assembly of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the hand control component of the utility model;

[0028] Figure 5 This is a schematic diagram of the positioning component structure of the utility model;

[0029] In the figure: 1. Mounting bracket; 2. Displacement assembly; 201. Fixed frame; 202. Groove; 203. Guide rod; 204. Sliding block; 205. Annular air cushion strip; 206. Reset spring; 207. Screw rod; 208. Screw block; 209. Servo motor; 210. Slideway; 211. Guide block; 212. Electromagnet; 3. Tension wheel assembly; 301. Mounting plate; 302. Mounting block; 303. Tension wheel; 304. Spring; 305. Tightening screw; 4. Manual control assembly; 401. Fixed seat; 402. Elastomer; 403. One-way valve; 404. Air nozzle; 405. Protective cover; 5. Positioning assembly; 501. U-shaped plate; 502. Sliding block; 503. Positioning screw; 6. Pulley. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] In order to facilitate the addition of a manual adjustment control mechanism, thereby increasing the flexibility of tension control, while improving the stability of tension control and improving the use effect, such as Figure 1-2 As shown, a tension control mechanism of a slow-moving wire cutting machine described in the utility model comprises a mounting bracket 1, a displacement component 2 and a tension wheel component 3, wherein the displacement component 2 is arranged on the inner side of the mounting bracket 1, and the tension wheel component 3 is slidably connected to one side of the displacement component 2, and a hand control component 4 is arranged on the top of the displacement component 2, and a positioning component 5 is slidably connected to one side of the tension wheel component 3 on the periphery of the displacement component 2;

[0032] The displacement assembly 2 includes a fixing frame 201, and grooves 202 are provided at the top and bottom of the fixing frame 201. A guide rod 203 is connected to the groove 202 by bolts. A sliding block 204 is slidably connected to the periphery of the guide rod 203. An annular air cushion strip 205 is sleeved on the periphery of the guide rod 203 located on one side of the sliding block 204, and a return spring 206 is sleeved on the periphery of the guide rod 203 located on the other side of the sliding block 204.

[0033] When in use, the position of the sliding block 204 can be adjusted using the hand-controlled component 4 through the deformation caused by the inflation and deflation of the annular air cushion strip 205 and the elastic thrust of the return spring 206, thereby achieving the adjustment of the position of the tension wheel component 3 and increasing the flexibility of the tension control mechanism.

[0034] In order to improve the error tolerance of manual tension adjustment operation, for example, Figure 3 As shown, the utility model also includes that the tension wheel assembly 3 includes a mounting plate 301, and the mounting plate 301 is connected to the sliding block 204 through bolts, a mounting block 302 is slidably connected inside the mounting plate 301, and the mounting block 302 is installed with a tension wheel 303 through a bearing, a spring 304 is installed on one side of the mounting block 302 in the mounting plate 301 through a spring seat, and a tightening screw 305 corresponding to the mounting block 302 is threadedly connected to one side of the mounting plate 301 through a reserved threaded hole.

[0035] When in use, by means of the elastic force of the mounting block 302 and the spring 304, the movable space of the tension wheel 303 can be increased when the tension is manually adjusted, thereby avoiding damage to the electrode wire due to excessive tension, while increasing the fault tolerance space and improving the convenience and stability of the manual adjustment operation.

[0036] For example, Figure 2 As shown, the utility model also includes that a screw rod 207 is installed between the grooves 202 in the fixing frame 201 through a bearing, a corresponding screw block 208 is arranged on the periphery of the screw rod 207, one side of the fixing frame 201 is connected to a servo motor 209 by bolts, and the servo motor 209 is connected to the screw rod 207 by a driving shaft.

[0037] When in use, the servo motor 209 drives the screw rod 207 to rotate, and the displacement of the screw block 208 can perform automatic tension control and adjustment actions.

[0038] For example, Figure 4 As shown, the utility model also includes that the hand control component 4 includes a fixed seat 401, and the air outlet end of the fixed seat 401 is connected to the annular air cushion strip 205, the top of the fixed seat 401 is provided with an elastomer 402, the air inlet end of the fixed seat 401 is provided with a one-way valve 403, one side of the fixed seat 401 is provided with an air nozzle 404, and the top of the fixed seat 401 is located on the outer periphery of the elastomer 402 and is provided with a protective cover 405.

[0039] When in use, external air can be quickly drawn into the annular air cushion strip 205 through elastic deformation caused by pressing, and the annular air cushion strip 205 can be manually inflated and deflated to improve the convenience of manual operation.

[0040] For example, Figure 2 As shown, the utility model also includes that one side of the wire block 208 is connected with a guide block 211 corresponding to the tension wheel assembly 3 by bolts, and an electromagnet 212 is arranged inside the guide block 211.

[0041] When in use, the guide block 211 and the electromagnet 212 can utilize the magnetic force generated by power-on to drive the tension wheel assembly 3 to move together to perform automatic tension control and adjustment.

[0042] For example, Figure 2 , Figure 5 As shown, the utility model also includes that the positioning assembly 5 includes a U-shaped plate 501, the top and bottom of the U-shaped plate 501 are connected to the slider 502 by bolts, the top and bottom of the U-shaped plate 501 are threadedly connected to the positioning screw 503 through reserved threaded holes, the top and bottom surfaces of the fixing frame 201 are provided with a slide 210, and the U-shaped plate 501 is slidably connected to the slide 210 through the inner slider 502.

[0043] When in use, the U-shaped plate 501, the slider 502 and the slideway 201 are slidably connected, so that the adjustment position of the mounting plate 301 can be positioned in advance according to the tension adjustment range.

[0044] For example, Figure 1 As shown, the utility model also includes that the inner side of the mounting bracket 1 is located at the top and bottom of the displacement assembly 2 and pulleys 6 corresponding to the tension wheel assembly 3 are installed through bearings.

[0045] When in use, the pulley 6 facilitates guiding of the electrode wire.

[0046] When the utility model is used, the operator first manually turns on the electromagnet 212, uses the magnetic force generated by the power supply to attract the mounting plate 301 for connection, and then turns on the servo motor 209 to drive the screw rod 207 to rotate, and uses the wire block 208 to drive the mounting plate 301 to move, thereby adjusting the use position of the tension wheel 303, and completing the automatic adjustment operation of the electrode wire tension;

[0047] When power failure or drive mechanism damage occurs, the position of the U-shaped plate 501 can be adjusted in advance, the positioning screw 503 can be screwed to limit and fix the U-shaped plate 501, and then the elastic body 402 can be manually pressed. The elastic deformation caused by pressing the elastic body 402 causes the external air to be drawn into the annular air cushion strip 205 through the one-way valve 403, and the inflation deformation of the annular air cushion strip 205 is used to push the sliding block 204 to slide, thereby driving the mounting plate 301 to slide to one side of the U-shaped plate 501, and completing the manual control and tension adjustment operation;

[0048] In order to improve the flexibility and fault tolerance of manual control, the tightening screw 305 on one side of the mounting plate 301 can be removed in advance. Through the elasticity of the spring 304 and the sliding of the mounting block 302, the flexibility of the manual adjustment operation can be increased to avoid damage to the electrode wire due to excessive tension. The overall structure is simple and easy to operate, and it is more convenient and reliable to use.

[0049] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tension control mechanism for a wire cutting machine, characterized in that: The invention comprises a mounting bracket (1), a displacement component (2) and a tension wheel component (3), wherein the displacement component (2) is arranged on the inner side of the mounting bracket (1), one side of the displacement component (2) is slidably connected to the tension wheel component (3), a hand control component (4) is arranged on the top of the displacement component (2), and a positioning component (5) is slidably connected to one side of the tension wheel component (3) at the periphery of the displacement component (2); The displacement assembly (2) comprises a fixing frame (201), the fixing frame (201) having grooves (202) at the top and bottom, the groove (202) being connected with a guide rod (203) via bolts, the outer periphery of the guide rod (203) being slidably connected with a sliding block (204), the outer periphery of the guide rod (203) being located on one side of the sliding block (204) being sleeved with an annular air cushion strip (205), and the outer periphery of the guide rod (203) being located on the other side of the sliding block (204) being sleeved with a return spring (206).

2. A tension control mechanism for a wire cutting machine according to claim 1, characterized in that: The tension wheel assembly (3) comprises a mounting plate (301), and the mounting plate (301) is connected to a sliding block (204) via bolts; a mounting block (302) is slidably connected inside the mounting plate (301), and the mounting block (302) is mounted on a tension wheel (303) via a bearing; a spring (304) is mounted on one side of the mounting block (302) inside the mounting plate (301) via a spring seat; and a tightening screw (305) corresponding to the mounting block (302) is threadedly connected to one side of the mounting plate (301) via a reserved threaded hole.

3. The tension control mechanism of a wire cutting machine according to claim 1, characterized in that: A screw rod (207) is installed between the grooves (202) in the fixing frame (201) via a bearing, a corresponding screw block (208) is arranged on the periphery of the screw rod (207), one side of the fixing frame (201) is connected to a servo motor (209) via bolts, and the servo motor (209) is connected to the screw rod (207) via a drive shaft.

4. The tension control mechanism of a wire cutting machine according to claim 1, characterized in that: The hand control assembly (4) comprises a fixing seat (401), and the air outlet end of the fixing seat (401) is connected to the annular air cushion strip (205), an elastic body (402) is arranged on the top of the fixing seat (401), a one-way valve (403) is arranged on the air inlet end of the fixing seat (401), an air nozzle (404) is arranged on one side of the fixing seat (401), and a protective cover (405) is arranged on the top of the fixing seat (401) and the outer periphery of the elastic body (402).

5. The tension control mechanism of a wire cutting machine according to claim 3, characterized in that: One side of the wire block (208) is connected to a guide block (211) corresponding to the tension wheel assembly (3) via bolts, and an electromagnet (212) is arranged inside the guide block (211).

6. The tension control mechanism of a wire cutting machine according to claim 1, characterized in that: The positioning assembly (5) comprises a U-shaped plate (501), the top and bottom of the U-shaped plate (501) are connected to a slider (502) via bolts, the top and bottom of the U-shaped plate (501) are threadedly connected to a positioning screw (503) via reserved threaded holes, the top and bottom surfaces of the fixing frame (201) are provided with slideways (210), and the U-shaped plate (501) is slidably connected to the slideway (210) via an inner slider (502).

7. The tension control mechanism of a wire cutting machine according to claim 1, characterized in that: The inner side of the mounting bracket (1) is located at the top and bottom of the displacement assembly (2) and is provided with pulleys (6) corresponding to the tension wheel assembly (3) via bearings.

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