Positioning device of medium-speed wire cutting machine tool

Abstract

The positioning device of the medium-speed wire cutting machine tool comprises a base, a workpiece and a supporting mechanism are placed on the top of the base, the supporting mechanism comprises screws arranged on the left side and the right side of the top of the base, and the bottoms of the screws extend into the base and are in threaded connection with the base. The top of the front face of the screw rod is movably connected with a fixing ring through a bearing, the bottom of the fixing ring is fixedly connected with a connecting ring, the inner wall of the connecting ring is movably connected with a worm through a bearing, the front face of the worm is meshed with a worm wheel, and the inner wall of the worm wheel is fixedly connected with the surface of the screw rod. When the positioning and fixing device is used, under the action of the supporting mechanism, the positioning mechanism and the screwing mechanism, the positioning position and direction of the positioning device can be conveniently and rapidly adjusted, the situation that the adjusting process of an existing positioning and fixing device of the medium-speed wire cutting machine is complex is avoided, and the positioning and fixing device has the advantage of being convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to middle wire cutting machine tool technical field, concretely is a kind of positioning device of middle wire cutting machine tool. BACKGROUND

[0002] The positioning device of middle wire cutting machine tool is the key component to ensure the stability and precision of workpiece in cutting process.

[0003] In the practical application of the positioning device of middle wire cutting machine tool, the current positioning device generally lacks additional linkage mechanism, which causes the operator to manually twist and tighten multiple components one by one, not only increasing the complexity of operation steps, but also significantly reducing the overall work efficiency.

[0004] Therefore, it is necessary to design and reform the positioning device of middle wire cutting machine tool to effectively prevent the phenomenon of inconvenience in use. UTILITY MODEL CONTENT

[0005] To solve the problems raised in the above background art, the purpose of the utility model is to provide a positioning device of middle wire cutting machine tool, which has the advantage of being convenient to use and solves the problem of inconvenience in use.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a positioning device of middle wire cutting machine tool, comprising a base, a workpiece is placed on the top of the base, a support mechanism, the support mechanism comprises screw rods arranged on the left and right sides of the top of the base, the bottom of the screw rod extends to the inside of the base and is threadedly connected thereto, the top of the front surface of the screw rod is movably connected with a fixed ring through a bearing, the bottom of the fixed ring is fixedly connected with a connecting ring, the inner wall of the connecting ring is movably connected with a worm through a bearing, the front surface of the worm is engaged with a worm wheel, the inner wall of the worm wheel is fixedly connected with the surface of the screw rod, the left side of the right worm is fixedly connected with a sliding rod, the left side of the sliding rod extends to the inside of the left worm and is slidably connected thereto, the sliding rod keeps the two worms rotating synchronously while allowing them to adjust the distance between the middle left and right sides, the worm can drive the screw rod to be tightened on the top of the base through the worm wheel when rotating, and the surface of the screw rod is provided with a positioning mechanism.

[0007] As the utility model discloses, preferably, the positioning mechanism comprises a pressing block, the right side of the bottom of the pressing block is in contact with the top of the workpiece, a screw rod is arranged in the pressing block, the surface of the screw rod is movably connected with a movable ring, the top and bottom of the movable ring are slidably connected with the top and bottom of the inner wall of the pressing block, the top of the movable ring is provided with a tightening ring, the bottom of the tightening ring is slidably connected with the top of the pressing block, the inner wall of the tightening ring is threadedly connected with the surface of the screw rod, and the tightening ring moves downward when rotating to press the pressing block and position the workpiece.

[0008] As the utility model discloses, preferably, the tightening mechanism comprises a tooth block fixedly connected to the surface of the tightening ring, the tooth block is distributed uniformly around the tightening ring, the inner side of the tooth block is engaged with a tightening gear, the inner wall of the tightening gear is movably connected with a connecting rod through a bearing, the bottom of the connecting rod is fixedly connected with a sliding block, the surface of the sliding block is slidably connected with the inner wall of the pressing block, and the top of the tightening gear is fixedly connected with a tightening cylinder.

[0009] As the utility model discloses, preferably, the back surface of the sliding block is provided with a limiting rod on the left side and the right side, the back surface and the front surface of the limiting rod are fixedly connected to the back side and the front side of the inner wall of the pressing block respectively, and the surface of the limiting rod is slidably connected with the inner wall of the sliding block.

[0010] As the utility model discloses, preferably, the left side and the right side of the worm are fixedly connected with rotating wheels, and the rotating wheels drive the worm wheel to rotate in cooperation with the worm.

[0011] As the utility model discloses, preferably, the inner wall of the tightening cylinder is slidably connected with a rotating rod, and the rotating rod is used in cooperation with the tightening cylinder.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1、The utility model discloses when using, under the action of supporting mechanism and positioning mechanism and its tightening mechanism, can convenient and fast adjustment positioning device's positioning position and direction, avoided the adjustment process of the fixed device of the existing wire cut electrical discharge machining machine, made it have the advantage that is convenient to use.

[0014] 2、The utility model discloses through setting up positioning mechanism, further enhanced the stability of workpiece, through the thread connection of tightening ring and screw rod and the sliding connection of movable ring and pressing block, ensure that the position of workpiece is stable during processing, and it is not easy to shift. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the support mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the tightening mechanism and positioning mechanism of this utility model.

[0019] In the diagram: 1. Base; 2. Workpiece; 3. Screw; 4. Fixing ring; 5. Connecting ring; 6. Worm gear; 7. Worm wheel; 8. Pressure block; 9. Moving ring; 10. Tightening ring; 11. Tooth block; 12. Tightening gear; 13. Sliding block; 14. Tightening cylinder; 15. Limiting rod; 16. Rotating wheel; 17. Rotating rod; 18. Sliding rod; 19. Connecting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 4 As shown, the positioning device for a medium-speed wire EDM machine provided by this utility model includes a base 1, a workpiece 2 placed on the top of the base 1, and a support mechanism. The support mechanism includes screws 3 disposed on the left and right sides of the top of the base 1. The bottom of the screws 3 extends into the interior of the base 1 and is threadedly connected thereto. The top of the front of each screw 3 is movably connected to a fixing ring 4 via a bearing. The bottom of each fixing ring 4 is fixedly connected to a connecting ring 5. The inner wall of each connecting ring 5 is movably connected to a worm 6 via a bearing. The front of the worm 6 meshes with a worm wheel 7. The inner wall of the worm wheel 7 is fixedly connected to the surface of the screw 3. The left side of the right worm 6 is fixedly connected to a sliding rod 18. The left side of the sliding rod 18 extends into the interior of the left worm 6 and is slidably connected thereto. The sliding rod 18 keeps the two worms 6 rotating synchronously and allows them to adjust the middle distance left and right. When the worm 6 rotates, it can drive the screw 3 to be tightened on the top of the base 1 via the worm wheel 7. A positioning mechanism is provided on the surface of the screw 3.

[0022] refer to Figure 4The positioning mechanism comprises a pressing block 8, the right side of the bottom of the pressing block 8 is in contact with the top of the workpiece 2, a screw rod 3 is arranged in the pressing block 8, the surface of the screw rod 3 is movably connected with a movable ring 9, the top and bottom of the movable ring 9 are slidably connected with the top and bottom of the inner wall of the pressing block 8, the top of the movable ring 9 is provided with a screw ring 10, the bottom of the screw ring 10 is slidably connected with the top of the pressing block 8, the inner wall of the screw ring 10 is threadedly connected with the surface of the screw rod 3, and the screw ring 10 moves downwards through the threaded connection with the screw rod 3 during rotation, so as to press the workpiece 2 in position by the pressing block 8; the movable ring 9 is slidably connected with the inner wall of the pressing block 8 and the surface of the screw rod 3, so that the screw rod 3 is always arranged in the pressing block 8 without affecting the rotation of the screw rod 3 and the up-down movement of the pressing block 8; and the back of the screw ring 10 is provided with a screwing mechanism.

[0023] As a technical optimization scheme of the utility model, the positioning mechanism is arranged, and the stability of the workpiece 2 is further enhanced. Through the threaded connection between the screw ring 10 and the screw rod 3 and the sliding connection between the movable ring 9 and the pressing block 8, the position stability of the workpiece 2 during the machining process is ensured, and the workpiece 2 is not prone to deviation.

[0024] Reference Figure 4 The screwing mechanism comprises a plurality of tooth blocks 11 fixedly connected to the surface of the screw ring 10 and uniformly distributed around the screw ring 10, the inner side of the tooth block 11 is engaged with a screw gear 12, the inner wall of the screw gear 12 is movably connected with a connecting rod 19 through a bearing, the bottom of the connecting rod 19 is fixedly connected with a sliding block 13, the surface of the sliding block 13 is slidably connected with the inner wall of the pressing block 8, and the top of the screw gear 12 is fixedly connected with a screw cylinder 14; the screw gear 12 can drive the two screw rings 10 on the surface of the screw rod 3 to rotate and move downwards at the same time through the tooth blocks 11, so as to press the top of the workpiece 2 by the pressing block 8.

[0025] As a technical optimization scheme of the utility model, the screwing mechanism is arranged, and the positioning effect is improved. The workpiece 2 can be further pressed tightly through the rotation and downward movement of the two screw rings 10 on the surface of the screw rod 3 at the same time driven by the screw gear 12, and the machining precision and stability are improved.

[0026] Reference Figure 4 The screwing mechanism comprises a plurality of tooth blocks 11 fixedly connected to the surface of the screw ring 10 and uniformly distributed around the screw ring 10, the inner side of the tooth block 11 is engaged with a screw gear 12, the inner wall of the screw gear 12 is movably connected with a connecting rod 19 through a bearing, the bottom of the connecting rod 19 is fixedly connected with a sliding block 13, the surface of the sliding block 13 is slidably connected with the inner wall of the pressing block 8, and the top of the screw gear 12 is fixedly connected with a screw cylinder 14; the screw gear 12 can drive the two screw rings 10 on the surface of the screw rod 3 to rotate and move downwards at the same time through the tooth blocks 11, so as to press the top of the workpiece 2 by the pressing block 8.

[0027] As a technical optimization scheme of the utility model, the sliding path of the sliding block 13 on the inner wall of the pressing block 8 is ensured to be stable by setting the limiting rod 15, the deviation or shaking of the sliding block 13 in the moving process is prevented, and thus it is ensured that the screwing mechanism can work stably.

[0028] Reference Figure 3 The left and right sides of the worm 6 are fixedly connected with rotating wheels 16, and the rotating wheels 16 drive the worm wheel 7 to rotate in cooperation with the worm 6.

[0029] As a technical optimization scheme of the utility model, the worm 6 is conveniently driven to rotate manually by setting the rotating wheel 16, and the operation convenience of the equipment is improved. Meanwhile, the cooperation of the rotating wheel 16 and the worm 6 also ensures that the worm 6 can rotate stably.

[0030] Reference Figure 4 The inner wall of the screwing cylinder 14 is slidably connected with a rotating rod 17, and the rotating rod 17 is used in cooperation with the screwing cylinder 14.

[0031] As a technical optimization scheme of the utility model, the cooperation of the screwing cylinder 14 and the rotating rod 17 provides a more rapid and convenient rotating method for the rotation of the worm 6, and makes the process of driving the screwing gear 12 by the screwing cylinder 14 more convenient.

[0032] The utility model discloses a working principle and use flow: when using, base 1 is used as the support platform of whole device, and its top is used for placing the workpiece 2 of processing. The support mechanism includes the screw rod 3 of setting at the top left and right sides of base 1, and the bottom of these screw rods 3 extends to the inside of base 1 and is connected with base 1 threadedly. The top of the front of screw rod 3 is movably connected with the fixed ring 4 through the bearing, and the bottom of fixed ring 4 is fixedly connected with the connecting ring 5, and the inner wall of connecting ring 5 is movably connected with the worm 6 through the bearing. The front of worm 6 is engaged with worm wheel 7, and worm wheel 7 is fixedly connected on the surface of screw rod 3. Especially, the left side of right worm 6 is fixedly connected with a sliding rod 18, and the sliding rod 18 extends to the inside of left worm 6 and is slidably connected with it, which ensures that the two worms 6 can keep synchronous when rotating, and the middle distance between them can be adjusted through the sliding rod 18 to adapt to workpieces 2 of different sizes, so that when fixing screw rod 3, the rotating wheel 16 can be directly rotated, which drives worm wheel 7 to rotate through worm 6, thereby driving screw rod 3 to rotate into the inside of base 1, and fixing is completed. The positioning mechanism is used for further fixing workpiece 2. It includes the pressing block 8, and the bottom of pressing block 8 is in contact with the top of workpiece 2. Screw rod 3 passes through the inside of pressing block 8, and movable ring 9 is movably connected on the surface of pressing block 8. The top and bottom of movable ring 9 are slidably connected with the inner wall of pressing block 8, so that pressing block 8 can move up and down without affecting the rotation of screw rod 3. The top of movable ring 9 is provided with the tightening ring 10, and the bottom of tightening ring 10 is also slidably connected with the top of pressing block 8, and the inner wall thereof is threadedly connected with the surface of screw rod 3. When the tightening ring 10 rotates, it will move downward through the threaded connection with screw rod 3, thereby pressing pressing block 8 and positioning the position of workpiece 2. The tightening mechanism is used for enhancing the positioning effect. It includes the tooth block 11 fixedly connected on the surface of tightening ring 10, and the tooth block 11 is engaged with the tightening gear 12. The tightening gear 12 is movably connected on the connecting rod 19 through the bearing, and the bottom of connecting rod 19 is fixedly connected with the sliding block 13. The surface of sliding block 13 is slidably connected with the inner wall of pressing block 8, so that the tightening gear 12 can drive the two sides of tightening ring 10 to rotate on the surface of screw rod 3 and move downward at the same time, further pressing pressing block 8 and pressing workpiece 2 top. In addition, the left and right sides of worm 6 are also fixedly connected with rotating wheel 16, which is convenient for manually or mechanically driving worm 6 to rotate. At the same time, in order to manually rotate the tightening gear 12 more conveniently, the inner wall of the tightening cylinder 14 is slidably connected with the rotating rod 17. In this way, the distance between screw rods 3 can be adjusted without affecting the linkage rotation of worm 6 and worm wheel 7, and the two tightening rings 10 are tightened at the same time by using the tightening gear 12, so that the tightening process is faster. The adjustment process of the positioning and fixing device of the existing wire-cutting machine tool is avoided, so that the utility model has the advantages of convenient use.

[0033] The positioning position and direction of the positioning device can be conveniently and quickly adjusted under the action of the supporting mechanism, the positioning mechanism and the screwing mechanism, the adjustment process of the positioning and fixing device of the existing wire-cutting machine tool is avoided to be complex, the positioning and fixing device has the advantages of convenient use, and the inconvenient use problem is solved.

[0034] It should be noted that, in this document, the terms "first", "second", and so on are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0035] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A positioning device of a medium-speed wire-cut electrical discharge machine, comprising a base (1), wherein a workpiece (2) is placed on the top of the base (1), characterized in that: a supporting mechanism is arranged on the left and right sides of the top of the base (1), wherein the bottom of each screw rod (3) extends into the base (1) and is screwed to the base (1), the top of the front surface of each screw rod (3) is movably connected with a fixed ring (4) through a bearing, the bottom of each fixed ring (4) is fixedly connected with a connecting ring (5), the inner wall of each connecting ring (5) is movably connected with a worm (6) through a bearing, the front surface of each worm (6) is engaged with a worm wheel (7), the inner wall of the worm wheel (7) is fixedly connected with the surface of the screw rod (3), the left side of the right worm (6) is fixedly connected with a sliding rod (18), the left side of the sliding rod (18) extends into the right worm (6) and is slidably connected with the right worm (6), the sliding rod (18) enables the two worms (6) to rotate synchronously and adjust the distance between the two worms (6), and the worm (6) can drive the screw rod (3) to be screwed to the top of the base (1) through the worm wheel (7) when the worm (6) rotates, and the surface of the screw rod (3) is provided with a positioning mechanism. The positioning mechanism comprises a pressing block (8), the right side of the bottom of the pressing block (8) is in contact with the top of the workpiece (2), the screw rod (3) is arranged in the pressing block (8), the surface of the screw rod (3) is movably connected with a movable ring (9), the top and bottom of the movable ring (9) are slidably connected with the top and bottom of the inner wall of the pressing block (8), the top of the movable ring (9) is provided with a screwing ring (10), the bottom of the screwing ring (10) is slidably connected with the top of the pressing block (8), the inner wall of the screwing ring (10) is screwed with the surface of the screw rod (3), the screwing ring (10) moves downward when the screwing ring (10) rotates through the screwing with the screw rod (3), so as to press the pressing block (8) to position the workpiece (2), the movable ring (9) ensures that the screw rod (3) is always arranged in the pressing block (8) through the sliding connection with the inner wall of the pressing block (8) and the surface of the screw rod (3) without affecting the rotation of the screw rod (3) and the up-down movement of the pressing block (8), and the back surface of the screwing ring (10) is provided with a screwing mechanism.

2. A positioning device for a medium-speed wire-cut machine tool according to claim 1, characterized in that: The screwing mechanism comprises a plurality of tooth blocks (11) fixedly connected with the surface of the screwing ring (10) and uniformly distributed around the screwing ring (10), the inner side of each tooth block (11) is engaged with a screwing gear (12), the inner wall of the screwing gear (12) is movably connected with a connecting rod (19) through a bearing, the bottom of the connecting rod (19) is fixedly connected with a sliding block (13), the surface of the sliding block (13) is slidably connected with the inner wall of the pressing block (8), the top of the screwing gear (12) is fixedly connected with a screwing cylinder (14), and the screwing gear (12) can drive both sides of the screwing ring (10) to rotate on the surface of the screw rod (3) and move downward through the tooth block (11), so as to press the pressing block (8) to press the top of the workpiece (2).

3. A positioning device for a medium-speed wire-cut machine tool according to claim 2, characterized in that: ​ 4. A positioning device for a medium-speed wire cut electrical discharge machine according to claim 3, characterized in that: The back of the sliding block (13) is provided with a limiting rod (15) on the left and right sides, the back and front of the limiting rod (15) are fixedly connected to the back and front of the inner wall of the pressing block (8), and the surface of the limiting rod (15) is in sliding connection with the inner wall of the sliding block (13).

5. A positioning device for a medium-speed wire cut electrical discharge machine according to claim 2, characterized in that: The worm (6) is fixedly connected with a rotating wheel (16) on the left and right sides, and the rotating wheel (16) drives the worm wheel (7) to rotate in cooperation with the worm (6).

6. A positioning device for a medium-speed wire cut electrical discharge machine according to claim 3, characterized in that: The inner wall of the screwing cylinder (14) is in sliding connection with a rotating rod (17), and the rotating rod (17) is used in cooperation with the screwing cylinder (14).

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