Rapid clamping device for linear cutting machine tool
By designing a quick clamping device on an online cutting machine tool, using technical means such as waterproof protective cloth cover and multi-stage fixtures, the clamping accuracy and firmness problems caused by coolant splashing are solved, and more efficient workpiece fixation and stable clamping are achieved.
Patent Information
- Application Number
- CN202323589622.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2033-12-27
AI Technical Summary
When performing wire cutting operations in existing wire cutting machine fixtures, the workpiece clamping ports are bonded due to the splashing of coolant, which affects the clamping accuracy and firmness.
A quick clamping device is designed, including a waterproof protective cloth cover, workpiece outlet, elastic rope, winch, telescopic spring and waterproof motor. Through the coordinated work of these components, coolant is prevented from entering the workpiece clamping port, and a multi-stage clamp and hydraulic telescopic rod are used to achieve clamping of multiple angles and multiple lengths.
It effectively isolates the coolant, improves the clamping accuracy and firmness of the workpiece, and achieves more stable workpiece fixation through multi-stage clamping and hydraulic control.
Smart Images
Figure CN222569501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a quick clamping device for a wire cutting machine tool. Background Art
[0002] Wire cut electrical discharge machining (WEDM) belongs to the category of electrical machining. It was discovered by the Soviet couple Lazarenko that the instantaneous high temperature of the electric spark can cause local metal to melt, oxidize and corrode, thus creating and inventing the electric spark machining method.
[0003] The existing wire cutting machine tool fixtures are generally traditional fixtures. The fixtures are movably provided with a workpiece clamping port. When one end of the material needs to be wire cut, one end of the material is clamped and fixed. Because the wire cutting machine tool will spray a large amount of coolant with a certain viscosity to assist in cutting during the wire cutting operation, there is no shielding equipment on the workpiece clamping port. The slippery coolant is easily accumulated and adhered to the workpiece clamping port, which affects its clamping accuracy and firmness, and needs to be improved. Utility Model Content
[0004] The utility model aims to provide a quick clamping device for a wire cutting machine tool.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The invention comprises a machine tool body, wherein a workroom is provided inside the machine tool body, a wire cutting device is fixedly installed in the workroom, a mounting base is fixedly provided on the bottom wall of the workroom, a fixture mounting plate is fixedly provided on the top wall of the mounting base, a multi-stage fixture is fixedly provided on the outer wall of the fixture mounting plate, the multi-stage fixture is provided with a workpiece clamping opening away from the fixture mounting plate, a waterproof protective cloth cover surrounding the workpiece clamping opening is fixedly provided on the outer wall of the multi-stage fixture, a workpiece outlet is provided on a side of the waterproof protective cloth cover away from the workpiece clamping opening, an elastic rope for tightening the waterproof protective cloth cover is slidably connected to the end of the waterproof protective cloth cover, both ends of the elastic rope pass through the outer wall of the protective cloth cover and are connected to a winch, a telescopic spring is fixedly provided on the outer wall of the multi-stage fixture, and a waterproof motor for driving the winch to rotate is fixedly provided on the end of the telescopic spring.
[0007] By adopting the above technical scheme, when in use, the workpiece is inserted into the workpiece clamping port from the workpiece outlet, the multi-stage clamp is locked, the waterproof protective cloth cover surrounds and blocks the workpiece clamping port, the elastic rope can be freely deformed to fit the workpiece surface and tighten, and the waterproof motor can be started to pull and further tighten the elastic rope to make it more closely attached to the workpiece surface. When the winch tightens the elastic rope, the waterproof motor at the end of the telescopic spring adapts to the workpiece outlet to prevent the elastic rope from being broken and filled with coolant under the pull of the winch. The waterproof protective cloth cover has a good effect of isolating the coolant, preventing the splashing coolant from entering the workpiece clamping port and affecting its clamping accuracy and firmness. The multi-stage clamp can maintain a stable clamping effect.
[0008] Furthermore, the multi-stage clamp includes a left clamp and a right clamp, the left clamp is fixedly connected to the side wall of the clamp mounting plate, the right clamp is fixedly arranged on a side of the left clamp away from the clamp mounting plate, and the right clamp is staggered with the left clamp.
[0009] By adopting the above technical solution, the staggered left clamp and right clamp can clamp the workpiece at multiple angles and lengths. Compared with the previous single clamp, it has a good multi-stage clamping effect and can greatly improve the clamping firmness of the multi-stage clamp on the workpiece.
[0010] Furthermore, a clamping groove is provided through the center of the right clamp and the left clamp, and a plurality of installation grooves connected to the clamping groove are provided on the side walls of the right clamp and the left clamp, and a fixed claw head is provided in sliding contact with the inner wall of the installation groove, and a side base is fixedly installed on the outer wall of the right clamp and the left clamp, and the side base covers the installation groove, and the side base is fixedly provided with a hydraulic telescopic rod arranged along the length direction of the installation groove, and the end of the hydraulic telescopic rod is fixedly connected to the fixed claw head, and the hydraulic telescopic rod is externally connected to a hydraulic control system.
[0011] By adopting the above technical solution, the hydraulic telescopic rod is combined with the fixed claw head. When the hydraulic telescopic rod is extended, the fixed claw heads are simultaneously extended into the clamping groove until they completely touch the outer wall of the workpiece for firm clamping. When the hydraulic telescopic rod is retracted, the fixed claw heads are away from the workpiece, so the workpiece can be easily unlocked. The clamping state of the multi-stage clamp can be switched according to actual needs.
[0012] Furthermore, the fixed claw head includes a sliding block, the sliding block is embedded in the inner wall of the installation groove and fixedly connected to the hydraulic telescopic rod, and a resistance block is fixedly provided on one side of the sliding block close to the clamping groove, and the end of the resistance block is tightened and narrowed.
[0013] By adopting the above technical solution, the inner wall of the sliding block embedded in the installation groove can stably slide under the push of the hydraulic telescopic rod, and the end of the contact block is tightened to reduce its contact area with the workpiece, effectively increasing the friction coefficient between the contact block and the workpiece, and the workpiece can be stably clamped.
[0014] Furthermore, the outer walls of the right and left clamps are fixed with engaging grooves for the side base to engage and lock, and the outer walls of the side bases are extended with reinforcement plates that fit the outer walls of the multi-stage clamps, and the reinforcement plates are penetrated with reinforcement bolts that are threadedly connected to the multi-stage clamps.
[0015] By adopting the above technical solution, the reinforcing plate is embedded in the engaging groove in the strong connection side base of the reinforcing bolt and the multi-stage clamp makes the installation of the fixed claw head more secure, thereby improving the stability of equipment operation.
[0016] In summary, the beneficial technical effects of the utility model are:
[0017] 1. The waterproof protective cloth cover, workpiece outlet, elastic rope, capstan, telescopic spring and waterproof motor are used to isolate the coolant and prevent the splashing coolant from entering the workpiece clamping port and affecting its clamping accuracy and firmness;
[0018] 2. The left and right clamps are staggered to produce a good multi-level clamping effect, which greatly improves the clamping strength of the multi-level clamp on the workpiece;
[0019] 3. The end of the friction block is tightened and narrowed, which reduces the contact area with the workpiece, increases the friction coefficient between the friction block and the workpiece, and stabilizes the clamping effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;
[0023] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the middle part A;
[0024] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure of part B in the middle.
[0025] In the figure, 1. machine tool body; 2. wire cutting device; 3. mounting base; 31. fixture mounting plate; 4. multi-stage fixture; 41. right fixture; 42. left fixture; 43. workpiece clamping port; 44. clamping groove; 45. mounting groove; 5. waterproof protective cloth cover; 51. workpiece outlet; 52. elastic rope; 6. telescopic spring; 61. waterproof motor; 62. capstan; 7. fixed claw head; 71. sliding block; 72. resistance block; 73. reinforcement plate; 74. hydraulic telescopic rod; 75. side base. DETAILED DESCRIPTION
[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-4 , the utility model provides a technical solution:
[0029] The machine tool body 1 includes a workroom, a wire cutting device 2 is fixedly installed in the workroom, a mounting base 3 is fixedly installed on the bottom wall of the workroom, a fixture mounting plate 31 is fixedly installed on the top wall of the mounting base 3, a multi-stage fixture 4 is fixedly installed on the outer wall of the fixture mounting plate 31, the multi-stage fixture 4 is provided with a workpiece clamping opening 43 away from the fixture mounting plate 31, a waterproof protective cloth cover 5 surrounding the workpiece clamping opening 43 is fixedly provided on the outer wall of the multi-stage fixture 4, a workpiece outlet 51 is provided on the side of the waterproof protective cloth cover 5 away from the workpiece clamping opening 43, an elastic rope 52 for tightening the waterproof protective cloth cover 5 is slidably connected at the end of the waterproof protective cloth cover 5, both ends of the elastic rope 52 pass through the outer wall of the protective cloth cover and are connected to a winch 62, a telescopic spring 6 is fixedly provided on the outer wall of the multi-stage fixture 4, and the end of the telescopic spring 6 is fixedly provided A waterproof motor 61 is provided to drive the capstan 62 to rotate. When in use, the workpiece is inserted from the workpiece outlet 51 into the workpiece clamping port 43, the multi-stage clamp 4 is locked, and the waterproof protective cloth cover 5 surrounds and blocks the workpiece clamping port 43. The elastic rope 52 can be freely deformed to fit the surface of the workpiece and tightened. Starting the waterproof motor 61 can pull and further tighten the elastic rope 52 to make it more closely attached to the surface of the workpiece. When the capstan 62 tightens the elastic rope 52, the waterproof motor 61 at the end of the telescopic spring 6 adaptively approaches the workpiece outlet 51 to prevent the elastic rope 52 from being broken and filled with coolant under the pulling of the capstan 62. The waterproof protective cloth cover 5 has a good effect of isolating the coolant, preventing the splashing coolant from entering the workpiece clamping port 43 and affecting its clamping accuracy and firmness. The multi-stage clamp 4 can maintain a stable clamping effect.
[0030] The multi-stage clamp 4 includes a left clamp 42 and a right clamp 41. The left clamp 42 is fixedly connected to the side wall of the clamp mounting plate 31, and the right clamp 41 is fixedly arranged on a side of the left clamp 42 away from the clamp mounting plate 31. The right clamp 41 and the left clamp 42 are staggered. The staggered left clamp 42 and right clamp 41 can clamp the workpiece at multiple angles and lengths. Compared with the previous single clamp, it has a good multi-stage clamping effect and can greatly improve the firmness of the multi-stage clamp 4 to the workpiece.
[0031] A clamping groove 44 is provided through the center of the right clamp 41 and the left clamp 42, and a plurality of mounting grooves 45 connected to the clamping groove 44 are provided on the side walls of the right clamp 41 and the left clamp 42. A fixed claw head 7 is provided in the mounting groove 45 to slide in contact with the inner wall. A side base 75 is fixedly installed on the outer wall of the right clamp 41 and the left clamp 42. The side base 75 covers the mounting groove 45. A hydraulic telescopic rod 74 arranged along the length direction of the mounting groove 45 is fixedly provided on the side base 75. The end of the hydraulic telescopic rod 74 is fixedly connected to the fixed claw head 7. The hydraulic telescopic rod 74 is externally connected to the hydraulic control system. The hydraulic telescopic rod 74 is combined with the fixed claw head 7. When the hydraulic telescopic rod 74 is extended, all the fixed claw heads 7 are extended into the clamping groove 44 until they completely contact the outer wall of the workpiece for firm clamping. When the hydraulic telescopic rod 74 is contracted, the fixed claw head 7 is away from the workpiece, so that the workpiece can be easily unlocked. The clamping state of the multi-stage clamp 4 can be switched according to actual needs.
[0032] The fixed claw head 7 includes a sliding block 71, which is engaged with the inner wall of the mounting groove 45 and fixedly connected to the hydraulic telescopic rod 74. A resistance block 72 is fixedly provided on one side of the sliding block 71 close to the clamping groove 44. The end of the resistance block 72 is tightened and narrowed. The sliding block 71 is engaged with the inner wall of the mounting groove 45 and can slide stably and within a limited position under the push of the hydraulic telescopic rod 74. The end of the resistance block 72 is tightened to reduce its contact area with the workpiece, thereby effectively increasing the friction coefficient between the resistance block 72 and the workpiece, and can stably clamp the workpiece.
[0033] The outer walls of the right clamp 41 and the left clamp 42 are fixed with an engagement groove for the side base 75 to engage and lock. The outer wall of the side base 75 is extended with a reinforcing plate 73 that fits the outer wall of the multi-stage clamp 4. The reinforcing plate 73 is penetrated with a reinforcing bolt that is threadedly connected to the multi-stage clamp 4. The reinforcing plate 73 is embedded in the engagement groove. The strong connection of the reinforcing bolt to the side base 75 and the multi-stage clamp 4 makes the fixed claw head 7 more firmly installed, and improves the stability of the equipment operation.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" 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 includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A quick clamping device for a wire cutting machine tool, comprising a machine tool body (1), characterized in that: A workroom is provided inside the machine tool body (1), a wire cutting device (2) is fixedly installed in the workroom, a mounting base (3) is fixedly provided on the bottom wall of the workroom, a fixture mounting plate (31) is fixedly provided on the top wall of the mounting base (3), a multi-stage fixture (4) is fixedly provided on the outer wall of the fixture mounting plate (31), a workpiece clamping opening (43) is provided on the multi-stage fixture (4) away from the fixture mounting plate (31), and a protective film surrounding the workpiece clamping opening (43) is fixedly provided on the outer wall of the multi-stage fixture (4). A waterproof cloth cover (5) is provided with a workpiece outlet (51) on one side of the waterproof cloth cover (5) away from the workpiece clamping opening (43); an elastic rope (52) for tightening the waterproof cloth cover (5) is slidably connected to the end of the waterproof cloth cover (5); both ends of the elastic rope (52) pass through the outer wall of the protective cloth cover and are connected to a winch (62); a telescopic spring (6) is fixedly provided on the outer wall of the multi-stage clamp (4); and a waterproof motor (61) for driving the winch (62) to rotate is fixedly provided at the end of the telescopic spring (6).
2. A quick clamping device for a wire cutting machine tool according to claim 1, characterized in that: The multi-stage clamp (4) comprises a right clamp (41) and a left clamp (42); the left clamp (42) is fixedly connected to the side wall of the clamp mounting plate (31); the right clamp (41) is fixedly arranged on a side of the left clamp (42) away from the clamp mounting plate (31); and the right clamp (41) and the left clamp (42) are staggered.
3. A quick clamping device for a wire cutting machine tool according to claim 2, characterized in that: A clamping groove (44) is provided through the center of the right clamp (41) and the left clamp (42); a plurality of mounting grooves (45) connected to the clamping groove (44) are provided on the side walls of the right clamp (41) and the left clamp (42); a fixed claw head (7) is provided in sliding contact with the inner wall of the mounting groove (45); a side base (75) is fixedly provided on the outer wall of the right clamp (41) and the left clamp (42); the side base (75) covers the mounting groove (45); a hydraulic telescopic rod (74) is fixedly provided on the side base (75) and arranged along the length direction of the mounting groove (45); the end of the hydraulic telescopic rod (74) is fixedly connected to the fixed claw head (7); and the hydraulic telescopic rod (74) is externally connected to a hydraulic control system.
4. A quick clamping device for a wire cutting machine tool according to claim 3, characterized in that: The fixed claw head (7) comprises a sliding block (71), the sliding block (71) is engaged with the inner wall of the mounting groove (45) and fixedly connected to the hydraulic telescopic rod (74), and a resistance block (72) is fixedly arranged on a side of the sliding block (71) close to the clamping groove (44), and the end of the resistance block (72) is tightened and narrowed.
5. A quick clamping device for a wire cutting machine tool according to claim 4, characterized in that: The outer walls of the right clamp (41) and the left clamp (42) are fixedly provided with engaging grooves for the side base (75) to engage and lock, and the outer wall of the side base (75) is extended with a reinforcing plate (73) that fits the outer wall of the multi-stage clamp (4), and the reinforcing plate (73) is penetrated by a reinforcing bolt that is threadedly connected to the multi-stage clamp (4).