CNC clamp positioning device

Abstract

The utility model belongs to the technical field of clamp positioning, and particularly relates to a CNC clamp positioning device which comprises a base. Two clamp bodies are fixedly connected to the top of the base; the two clamp bodies are oppositely arranged; the top of the clamp body is in threaded connection with a second screw rod; the bottom of the second screw rod is fixedly connected with a pressing block; a positioning box is mounted at the end part of the clamp body; two grooves are formed in the middle of the positioning box; the two grooves are arranged oppositely; the side wall of the positioning box is fixedly connected with two fixing plates; the two fixing plates are oppositely arranged; the middle of the fixing plate is slidably connected with a sliding rod. The positioning box is placed at the end of the clamp body, so that the workpiece placing position can be effectively confirmed, the clamp body can quickly and accurately clamp a workpiece, repeated adjustment of the clamp body caused by inaccurate workpiece placing position is effectively reduced, and waste of working time caused by repeated adjustment of the clamp body is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixture positioning, in particular to a CNC fixture positioning device. Background Art

[0002] CNC fixtures are used to fix workpieces during CNC machine processing. CNC fixtures are devices that ensure the stable and accurate position of workpieces. Fixtures are an indispensable part of CNC processing.

[0003] The fixture usually effectively fixes the workpiece through its design structure to prevent the workpiece from moving or vibrating during the processing, so as to ensure the accuracy of the workpiece processing. There are many types of CNC fixtures, and different types of fixtures are used according to different application scenarios. Among them, CNC fixtures include the use of rotating bolts to clamp the workpiece position through a pressure block. When the workpiece is placed on the processing table and fixed by the fixture, inaccurate placement of the workpiece can easily cause the fixture fixing position to shift, which requires repeated adjustment of the fixture, resulting in a waste of working time.

[0004] To this end, the utility model provides a CNC fixture positioning device. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a CNC fixture positioning device described in the utility model comprises a base; two fixture bodies are fixedly connected to the top of the base; the two fixture bodies are arranged oppositely; the top of the fixture body is threadedly connected to a second screw; the bottom of the second screw is fixedly connected to a pressure block; a positioning box is installed at the end of the fixture body; two grooves are provided in the middle of the positioning box; the two grooves are arranged oppositely; two fixing plates are fixedly connected to the side wall of the positioning box; the two fixing plates are arranged oppositely; a sliding rod is slidably connected to the middle of the fixing plate; the end of the sliding rod is fixedly connected to a first spring with the top of the fixing plate; the end of the sliding rod away from the first spring is fixedly connected to a positioning block; the side wall of the positioning block is fixedly connected to the first screw; the side wall of the positioning block is fixedly connected to the second Spring; a slide is fixedly connected to the end of the second spring; the side wall of the slide passes through the middle of the first screw; the slide is slidably connected in the middle of the first screw, and the workpiece placement position can be effectively confirmed by placing the positioning box on the end of the fixture body, so that the fixture body can clamp the workpiece quickly and accurately, effectively reducing the repeated adjustments of the fixture body caused by inaccurate workpiece placement, effectively reducing the waste of working time caused by repeated adjustments of the fixture body, and effectively reducing the damage to the workpiece caused by inaccurate position when the fixture body presses the workpiece, effectively reducing the waste generated in the workpiece production process, and can effectively reduce the displacement of the fixture body in the process of fixing the workpiece, which causes the movement of the workpiece during processing, and effectively reduce the problem of errors in processing caused by the movement of the workpiece, thereby effectively increasing the accuracy of workpiece processing.

[0007] Preferably, a third spring is fixed to the side wall of the slide plate; the third spring is fixed to the side away from the second spring; a nut is threadedly connected to the middle part of the first screw rod, and the workpiece can be effectively moved to the specified position through the nut, which can effectively reduce errors and inaccuracies caused by manual operation and effectively reduce the danger of direct contact with the workpiece. The third spring can effectively reduce the impact of the slide plate on the workpiece when moving the workpiece, effectively reduce damage to the workpiece surface, thereby increasing the quality and safety of the workpiece processing process.

[0008] Preferably, two through holes are provided on the top of the positioning box; a support rod is slidably connected to the middle of the through hole; a fourth spring is fixedly connected to the end of the support rod and the top of the positioning box; a fixing block is fixedly connected to the end of the support rod away from the fourth spring, and the fixing block can effectively reduce the shaking of the positioning box on the fixture body, effectively reduce the problem of inaccurate positioning of the fixture body caused by the shaking of the positioning box, effectively reduce the deviation of the positioning of the fixture body caused by the shaking of the positioning box, effectively increase the stability of the positioning of the fixture body, and the positioning box can be fixed on fixture bodies of different thicknesses through the support rod, effectively adapt to fixture bodies of different thicknesses, thereby increasing the accuracy of positioning of different fixture bodies.

[0009] Preferably, a guide plate is fixedly connected to the side wall of the fixed block; the guide plate is arranged in an arc shape, and the clamp body can be effectively guided by the guide plate, which can effectively reduce the manual stretching of the support rod and the operation of stretching the support rod, thereby realizing the work of automatically pressing and fixing the clamp body by the fixed block, effectively reducing the time for stretching the support rod, thereby effectively increasing the work efficiency of positioning the clamp body.

[0010] Preferably, one of the groove side walls is fixedly connected with multiple groups of elastic plates; the multiple groups of elastic plates are arranged opposite to each other; the elastic plates are arranged in an arc shape, and the positioning box can be effectively fixed on the fixture body through the elastic plates, which can reduce the shaking of the positioning box after it is inserted into the end of the fixture body, effectively reduce the positioning box from slipping due to shaking, and can effectively increase the stability of the positioning box during the positioning process on the fixture body, and reduce the problem of the positioning box slipping and causing impact on the workpiece and causing damage.

[0011] Preferably, a magnetic block is fixedly connected to the side wall of the positioning box; the magnetic block is fixedly connected to the inside of the positioning box, and the positioning box can be effectively sucked onto the end of the fixture body through the magnetic block, thereby effectively increasing the stability of the positioning box during operation, and effectively reducing the problem of inaccurate positioning caused by shaking of the positioning box, thereby effectively reducing the need for adjustment operations due to sliding of the positioning box, effectively increasing work efficiency, and the operation is simple and convenient, so that the positioning box can be quickly fixed.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The CNC fixture positioning device described in the utility model can effectively confirm the placement position of the workpiece by placing a positioning box at the end of the fixture body, and can enable the fixture body to clamp the workpiece quickly and accurately, effectively reducing the need for repeated adjustments of the fixture body due to inaccurate workpiece placement, effectively reducing the waste of working time caused by repeated adjustments of the fixture body, and can effectively reduce damage to the workpiece caused by inaccurate position when the fixture body presses the workpiece, effectively reducing the waste generated in the workpiece production process, and can effectively reduce the movement of the workpiece during processing caused by the deviation of the fixture body in the process of fixing the workpiece, effectively reducing the problem of errors in processing caused by the movement of the workpiece, thereby effectively increasing the accuracy of workpiece processing.

[0014] 2. The CNC fixture positioning device described in the utility model can effectively move the workpiece to the specified position through the nut, can effectively reduce the errors and inaccuracies caused by manual operation, and effectively reduce the dangers of direct contact with the workpiece. The third spring can effectively reduce the impact of the slide on the workpiece when moving the workpiece, effectively reduce the damage to the workpiece surface, thereby increasing the quality and safety of the workpiece processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of a CNC fixture positioning device in the utility model;

[0017] Figure 2 It is a structural schematic diagram of the slide bar in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the fixed block in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the nut in the utility model;

[0020] In the figure: 1. positioning box; 10. groove; 11. fixing plate; 12. sliding rod; 13. first spring; 14. positioning block; 15. first screw; 16. second spring; 17. slide plate; 2. third spring; 21. nut; 3. through hole; 31. support rod; 32. fourth spring; 33. fixing block; 4. guide plate; 5. elastic plate; 6. magnetic block; 7. elastic pad; 8. fixture body; 81. second screw; 82. pressure block; 83. base. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figures 1 to 4As shown, a CNC fixture positioning device described in an embodiment of the utility model comprises a base 83; two fixture bodies 8 are fixedly connected to the top of the base 83; the two fixture bodies 8 are arranged oppositely; a second screw 81 is threadedly connected to the top of the fixture body 8; a pressure block 82 is fixedly connected to the bottom of the second screw 81; a positioning box 1 is installed at the end of the fixture body 8; two grooves 10 are provided in the middle of the positioning box 1; the two grooves 10 are arranged oppositely; two fixing plates 11 are fixedly connected to the side wall of the positioning box 1; the two fixing plates 11 are arranged oppositely; the middle of the fixing plates 11 A slide bar 12 is slidably connected; a first spring 13 is fixedly connected to the end of the slide bar 12 and the top of the fixed plate 11; a positioning block 14 is fixedly connected to the end of the slide bar 12 away from the first spring 13; a first screw 15 is fixedly connected to the side wall of the positioning block 14; a second spring 16 is fixedly connected to the side wall of the positioning block 14; a slide plate 17 is fixedly connected to the end of the second spring 16; the side wall of the slide plate 17 passes through the middle of the first screw 15; the slide plate 17 is slidably connected in the middle of the first screw 15. When working, one side of the positioning box 1 is inserted from the end of the clamp body 8, and then the top of the slide bar 12 is held and pulled upward, so that the slide bar 12 is fixed in the fixed The fixed plate 11 slides in the middle, and the first spring 13 is elastically stretched by the sliding rod 12 at this time, and the workpiece is placed on the processing table. The end of the sliding rod 12 is loosened to allow the positioning block 14 to press the workpiece for positioning, and the side wall of the workpiece is fitted by the slide plate 17. When the slide plate 17 fits the workpiece, it is subjected to pressure and elastically stretched by the second spring 16 to make the slide plate 17 slide in the middle of the first screw rod 15. After the position of the workpiece is determined, the positioning box 1 is taken out of the end of the fixture body 8, and then the fixture body 8 is rotated downward to move the workpiece to fix it. By placing the positioning box 1 at the end of the fixture body 8, it can be effectively Confirming the placement position of the workpiece can enable the fixture body 8 to clamp the workpiece quickly and accurately, effectively reducing the need for repeated adjustments of the fixture body 8 due to inaccurate workpiece placement, effectively reducing the waste of working time caused by repeated adjustments of the fixture body 8, and can effectively reduce damage to the workpiece caused by inaccurate position when the fixture body 8 presses the workpiece, effectively reducing the waste generated in the workpiece production process, and can effectively reduce the deviation of the fixture body 8 in the process of fixing the workpiece, which causes the workpiece to move during processing, effectively reducing the problem of errors in processing caused by the movement of the workpiece, thereby effectively increasing the accuracy of workpiece processing.

[0023] like Figure 1 and Figure 4As shown, the side wall of the slide plate 17 is fixedly connected with a third spring 2; the third spring 2 is fixedly connected to the side away from the second spring 16; the middle part of the first screw rod 15 is threadedly connected with a nut 21. During operation, when the workpiece placement position is offset from the position of the fixture body 8, the nut 21 is rotated to make the nut 21 contact with the third spring 2, and the slide plate 17 is pushed in the middle part of the first screw rod 15 by the third spring 2, and then the slide plate 17 is fitted with the side wall of the workpiece to move the workpiece to the fixed position of the fixture body 8, and the impact of the slide plate 17 on the side wall of the workpiece is elastically absorbed by the third spring 2, and the workpiece can be effectively moved to the specified position through the nut 21, which can effectively reduce errors and inaccuracies caused by manual operation, and effectively reduce the danger of direct contact with the workpiece, and the third spring 2 can effectively reduce the impact of the slide plate 17 on the workpiece when moving the workpiece, and effectively reduce the damage to the workpiece surface, thereby increasing the quality and safety of the workpiece processing process.

[0024] like Figure 1 and Figure 3 As shown, the top of the positioning box 1 is provided with two through holes 3; a support rod 31 is slidably connected to the middle of the through hole 3; a fourth spring 32 is fixedly connected to the end of the support rod 31 and the top of the positioning box 1; a fixing block 33 is fixedly connected to the end of the support rod 31 away from the fourth spring 32. When working, the positioning box 1 is inserted into the end of the clamp body 8, and the support rod 31 is pulled up to slide on the top of the positioning box 1. At the same time, the fourth spring 32 is elastically stretched. When the end of the clamp body 8 enters the interior of the positioning box 1, it is released. The support rod 31 enables the fixed block 33 to press the clamp body 8. The fixed block 33 can effectively reduce the shaking of the positioning box 1 on the clamp body 8, effectively reduce the problem of inaccurate positioning of the clamp body 8 caused by the shaking of the positioning box 1, effectively reduce the deviation of the positioning of the clamp body 8 caused by the shaking of the positioning box 1, effectively increase the stability of the positioning of the clamp body 8, and the positioning box 1 can be fixed on the clamp body 8 of different thicknesses through the support rod 31, effectively adapt to the clamp body 8 of different thicknesses, thereby increasing the accuracy of positioning of different clamp bodies 8.

[0025] like Figure 3As shown, the side wall of the fixed block 33 is fixedly connected with a guide plate 4; the guide plate 4 is arranged in an arc shape. During operation, in the process of inserting the positioning box 1 into the end of the clamp body 8, the two ends of the guide plates 4 first contact the end of the clamp body 8, and then the positioning box 1 is pushed toward the position of the clamp body 8. At this time, the end of the clamp body 8 slides in the middle of the guide plate 4, and the end of the clamp body 8 is guided by the guide plate 4. At the same time, pressure is applied to the guide plate 4, and the fixed block 33 is moved upward by the guide plate 4. The clamp body 8 can be effectively guided by the guide plate 4, and the manual stretching of the support rod 31 can be effectively reduced, and the operation of stretching the support rod 31 can be effectively reduced, thereby realizing the work of automatically pressing and fixing the clamp body 8 by the fixed block 33, effectively reducing the time for stretching the support rod 31, thereby effectively increasing the working efficiency of positioning the clamp body 8.

[0026] like Figure 3 As shown, one of the side walls of the grooves 10 is fixedly connected with multiple groups of elastic plates 5; the multiple groups of elastic plates 5 are arranged opposite to each other; the elastic plates 5 are arranged in an arc shape. During operation, when the positioning box 1 is inserted into the end of the fixture body 8, the second screw 81 passes through the middle of the multiple groups of opposite elastic plates 5 in sequence, so that the second screw 81 is clamped by the multiple groups of elastic plates 5. The positioning box 1 can be effectively fixed on the fixture body 8 through the elastic plate 5, and the shaking of the positioning box 1 after the insertion of the end of the fixture body 8 can be reduced, and the sliding of the positioning box 1 caused by the shaking can be effectively reduced. The stability of the positioning box 1 during the positioning process on the fixture body 8 can be effectively increased, and the problem of the positioning box 1 sliding off and causing impact on the workpiece and causing damage can be reduced.

[0027] like Figure 3 As shown, a magnetic block 6 is fixedly connected to the side wall of the positioning box 1; the magnetic block 6 is fixedly connected to the inside of the positioning box 1. During operation, when the positioning box 1 is inserted from the end of the clamp body 8, as the magnetic block 6 gradually approaches the end of the clamp body 8, the magnetic block 6 generates suction to the end of the clamp body 8. The positioning box 1 can be effectively sucked to the end of the clamp body 8 through the magnetic block 6, which effectively increases the stability of the positioning box 1 during operation, and can effectively reduce the problem of inaccurate positioning caused by the shaking of the positioning box 1, thereby effectively reducing the need for adjustment operations caused by the sliding of the positioning box 1, effectively increasing work efficiency, and the operation is simple and convenient, and the positioning box 1 can be quickly fixed.

[0028] like Figure 4As shown, an elastic pad 7 is fixedly connected to the end of the positioning block 14; the elastic pad 7 is fixedly connected to the end away from the second spring 16. During operation, when the positioning block 14 contacts the workpiece, the elastic pad 7 fits with the surface of the workpiece. The elastic pad 7 can effectively reduce the friction generated by the contact between the positioning block 14 and the workpiece surface, effectively reduce scratches or wear on the workpiece surface, and can effectively increase the quality of the workpiece after processing, thereby effectively increasing the service life of the workpiece after processing.

[0029] During operation, insert one side of the positioning box 1 from the end of the fixture body 8, then hold the top of the slide bar 12 and pull it upwards to make the slide bar 12 slide in the middle of the fixed plate 11. At this time, the first spring 13 is elastically stretched by the movement of the slide bar 12, and the workpiece is placed on the processing table. The end of the slide bar 12 is released to allow the positioning block 14 to press and position the workpiece, and the side wall of the workpiece is fitted with the slide plate 17. When the slide plate 17 is fitted with the workpiece, it is subjected to pressure and elastically stretched by the second spring 16 to make the slide plate 17 slide in the middle of the first screw rod 15. By positioning the workpiece After confirmation, take the positioning box 1 out of the end of the fixture body 8, and then rotate the fixture body 8 to move downward to fix the workpiece. When the workpiece placement position is offset from the position of the fixture body 8, rotate the nut 21 to make the nut 21 contact with the third spring 2, and push the slide plate 17 in the middle of the first screw rod 15 through the third spring 2, and then move the workpiece to the fixed position of the fixture body 8 through the slide plate 17 and the side wall of the workpiece. The impact of the slide plate 17 on the side wall of the workpiece is elastically absorbed by the third spring 2, and the positioning box 1 is inserted into During the process of inserting the end of the clamp body 8, the support rod 31 is pulled up to make the support rod 31 slide on the top of the positioning box 1, and the fourth spring 32 is elastically stretched. When the end of the clamp body 8 enters the interior of the positioning box 1, the support rod 31 is released to make the fixing block 33 press the clamp body 8. During the process of inserting the positioning box 1 into the end of the clamp body 8, the ends of the two guide plates 4 first contact the ends of the clamp body 8, and then the positioning box 1 is pushed toward the position of the clamp body 8. At this time, the end of the clamp body 8 slides in the middle of the guide plate 4, and the clamp is inserted into the clamp body 8 through the guide plate 4. The end of the main body 8 is guided and pressure is applied to the guide plate 4 at the same time, so that the fixing block 33 is moved upward through the guide plate 4. When the positioning box 1 is inserted into the end of the clamp body 8, the second screw 81 passes through the middle of multiple groups of opposite elastic plates 5 in sequence, thereby clamping the second screw 81 through the multiple groups of elastic plates 5. When the positioning box 1 is inserted from the end of the clamp body 8, the magnetic block 6 gradually approaches the end of the clamp body 8 so that the magnetic block 6 generates suction on the end of the clamp body 8. When the positioning block 14 contacts the workpiece, it fits with the surface of the workpiece through the elastic pad 7.

[0030] 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 are only for explaining 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 utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A CNC fixture positioning device, comprising a base (83); characterized in that: Two clamp bodies (8) are fixedly connected to the top of the base (83); the two clamp bodies (8) are arranged opposite to each other; a second screw rod (81) is threadedly connected to the top of the clamp body (8); a pressure block (82) is fixedly connected to the bottom of the second screw rod (81); a positioning box (1) is installed at the end of the clamp body (8); two grooves (10) are provided in the middle of the positioning box (1); the two grooves (10) are arranged opposite to each other; two fixing plates (11) are fixedly connected to the side walls of the positioning box (1); the two fixing plates (11) are arranged opposite to each other; the fixing plates (1 1) A sliding rod (12) is slidably connected in the middle; a first spring (13) is fixedly connected at the end of the sliding rod (12) and the top of the fixed plate (11); a positioning block (14) is fixedly connected at one end of the sliding rod (12) away from the first spring (13); a first screw rod (15) is fixedly connected to the side wall of the positioning block (14); a second spring (16) is fixedly connected to the side wall of the positioning block (14); a slide plate (17) is fixedly connected to the end of the second spring (16); the side wall of the slide plate (17) passes through the middle of the first screw rod (15); the slide plate (17) is slidably connected to the middle of the first screw rod (15).

2. A CNC fixture positioning device according to claim 1, characterized in that: A third spring (2) is fixedly connected to the side wall of the slide plate (17); the third spring (2) is fixedly connected to a side away from the second spring (16); and a nut (21) is threadedly connected to the middle part of the first screw rod (15).

3. A CNC fixture positioning device according to claim 2, characterized in that: The top of the positioning box (1) is provided with two through holes (3); a support rod (31) is slidably connected to the middle of the through hole (3); a fourth spring (32) is fixedly connected to the end of the support rod (31) and the top of the positioning box (1); and a fixing block (33) is fixedly connected to one end of the support rod (31) away from the fourth spring (32).

4. A CNC fixture positioning device according to claim 3, characterized in that: A guide plate (4) is fixedly connected to the side wall of the fixed block (33); the guide plate (4) is arranged in an arc shape.

5. A CNC fixture positioning device according to claim 4, characterized in that: A plurality of groups of elastic plates (5) are fixedly connected to the side wall of one of the grooves (10); the plurality of groups of elastic plates (5) are arranged opposite to each other; and the elastic plates (5) are arranged in an arc shape.

6. A CNC fixture positioning device according to claim 5, characterized in that: A magnetic block (6) is fixedly connected to the side wall of the positioning box (1); the magnetic block (6) is fixedly connected to the inside of the positioning box (1).

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