CNC machining clamp with double fixing structures for metal back plate
By designing a CNC machining fixture with a double fixed structure, using a combined structure of a base, a driving member and a clamping member, the problem of unstable clamping and fixing in the prior art is solved, and stable clamping and processing of irregularly shaped items is achieved.
Patent Information
- Application Number
- CN202420224935.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-01-29
AI Technical Summary
Existing CNC machining fixtures are unstable when clamped and fixed, resulting in inconvenient use.
A CNC machining fixture with a double fixing structure for metal back plate is designed, and a combined structure of base, drive and clamping parts is adopted to achieve double fixation through threaded rod, sliding rod and hydraulic system to ensure stable clamping of items during processing.
It realizes stable clamping of items that need to be processed, especially for items with irregular shapes, improving the stability and convenience of processing.
Smart Images
Figure CN222552881U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CNC processing fixtures, in particular to a CNC processing fixture with a double fixing structure for a metal back plate. Background Art
[0002] A machine tool fixture is a device used to clamp workpieces and guide tools on machine tools. It refers to a fixture specially designed for a certain process of a certain workpiece. It contacts the positioning reference of the workpiece and is used to determine the correct position of the workpiece in the fixture, thereby ensuring the relative correct position of the workpiece relative to the tool and the machine tool processing movement during processing.
[0003] At present, most of the CNC machining fixtures on the market have only one method for clamping and fixing the objects to be processed, which makes the clamp unstable in clamping and fixing the objects to be processed, causing inconvenience to people's use. Utility Model Content
[0004] The purpose of the utility model is to provide a CNC machining fixture with a double fixing structure for a metal back plate, so as to solve the problem of unstable fixing proposed in the above background technology. To achieve the above purpose, the utility model provides the following technical solution: A CNC machining fixture with a double fixing structure for a metal back plate comprises a base, the top of the base is fixedly connected to the bottom of the driving member, and the top of the base is fixedly connected to the bottom of the clamping member.
[0005] The inner wall of the driving member is fixedly connected to the outer wall of the oil inlet passage, and the inner wall of the clamping member is fixedly connected to the outer wall of the oil return passage.
[0006] Preferably, the base includes a base, a clamping plate, a threaded rod, a sliding rod and a rotating rod, the top of the base is fixedly connected to the bottom of the clamping plate, and a sliding groove is provided at the top of the clamping plate, one end of the threaded rod passes through the outer wall of the clamping plate and extends to the inside of the sliding groove, and a threaded hole is provided inside the sliding rod, the inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod located inside the sliding groove, and the outer wall of the bottom of the sliding rod is slidably connected to the inner wall of the sliding groove, the inner wall of the rotating rod is provided with a fixing hole, and the inner wall of the fixing hole is fixedly connected to the outer wall of one end of the threaded rod.
[0007] Preferably, the driving component consists of a driving motor, a hydraulic oil pump and a hydraulic oil tank, the bottom of the driving motor is fixedly connected to the top of the base, and one side of the driving motor is fixedly connected to one side of the hydraulic oil pump, the output shaft of the driving motor is fixedly connected to the driving shaft of the hydraulic oil pump, and the bottom of the hydraulic oil pump is provided with an input hole, the top of the hydraulic oil pump is provided with an output hole, and the bottom of the hydraulic oil tank is fixedly connected to the top of the base, one side of the hydraulic oil tank is provided with an oil outlet hole, and the front of the hydraulic oil tank is provided with an oil return hole.
[0008] Preferably, the clamping member includes a hydraulic column, a hydraulic rod and a fixed plate, the inner wall of the hydraulic column is respectively provided with a hydraulic cavity and a sliding cavity, and the inner wall of the sliding cavity is slidably connected to the outer wall of the hydraulic rod, the outer wall of the hydraulic column is fixedly connected to the inner wall of the top of the fixed plate, and the bottom of the fixed plate is fixedly connected to the top of the base, the outer wall of the hydraulic column is provided with an oil inlet, and one side of the hydraulic column is provided with an oil outlet, a clamping pad is provided at one end of the hydraulic rod, and the number of the hydraulic column, hydraulic rod and fixed plate are all two, and the two hydraulic columns, hydraulic rods and fixed plates are mirror-imaged along the center line of the base.
[0009] Preferably, the oil inlet route includes an oil outlet valve, an oil outlet pipe, a connecting pipe, a balancing valve and an oil inlet pipe, the outer wall of one end of the oil outlet valve is fixedly plugged with the inner wall of the oil outlet hole, and the inner wall of the other end of the oil outlet valve is fixedly plugged with the outer wall of one end of the oil outlet pipe, the outer wall of the other end of the oil outlet pipe is fixedly plugged with the inner wall of the input hole, and the outer wall of one end of the connecting pipe is fixedly plugged with the inner wall of the output hole, an inlet hole is provided at the top of the balancing valve, and an outlet hole is provided on one side of the balancing valve, the inner wall of the inlet hole is fixedly plugged with the outer wall of the other end of the connecting pipe, and the inner wall of the outlet hole is fixedly plugged with the outer wall of one end of the oil inlet pipe, the outer wall of the other end of the oil inlet pipe is fixedly plugged with the inner wall of the oil inlet, and there are two oil inlet pipes, and the two oil inlet pipes are mirror-imaged along the center line of the base.
[0010] Preferably, the oil return circuit includes a left oil return pipe, a right oil return pipe, a tee and a bracket, the outer wall of one end of the left oil return pipe is fixedly plugged with the inner wall of one of the oil outlets, and the outer wall of the other end of the left oil return pipe is fixedly plugged with the inner wall of one end of the tee, the outer wall of one end of the right oil return pipe is fixedly plugged with the inner wall of the other oil outlet, and the outer wall of the other end of the right oil return pipe is fixedly plugged with the inner wall of the other end of the tee, the outer wall of the back end of the tee is fixedly plugged with the inner wall of the oil return hole, and the bottom of the bracket is fixedly connected to the top of the base, a supporting hole is opened in the inner wall of the bracket, and the inner wall of the supporting hole is fixedly connected to the outer wall of the left oil return pipe, and the top of the bracket is fixedly connected to the bottom of the balancing valve.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The cam is pressed against the bottom surface of the hydraulic cylinder to move upward, and the hydraulic oil in the hydraulic cylinder is pressed downward, so that the hydraulic oil in the hydraulic cylinder can be adjusted accordingly. The cam is pressed downward, and the hydraulic oil in the hydraulic cylinder is pressed downward, so that the hydraulic oil in the hydraulic cylinder can be adjusted accordingly.
[0013] In the utility model, when holding irregularly shaped objects, the hydraulic oil pushes out each hydraulic rod according to the uneven surface of the object, so that each hydraulic rod presses against the uneven surface of the object, fixes the irregularly shaped objects, realizes the clamping of irregular objects, and brings convenience to people's use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a cross-sectional view of the utility model;
[0016] Figure 3 It is an exploded view of the utility model.
[0017] In the figure: 1. base; 101. base; 102. clamping plate; 103. threaded rod; 104. sliding rod; 105. rotating rod; 2. driving member; 201. driving motor; 202. hydraulic oil pump; 203. hydraulic oil tank; 3. clamping member; 301. hydraulic column; 302. hydraulic rod; 303. fixing plate; 4. oil inlet circuit; 401. oil outlet valve; 402. oil outlet pipe; 403. connecting pipe; 404. balancing valve; 405. oil inlet pipe; 5. oil return circuit; 501. left oil return pipe; 502. right oil return pipe; 503. tee; 504. bracket. DETAILED DESCRIPTION
[0018] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.
[0019] See also Figures 1 to 3The utility model provides a technical solution: a CNC machining fixture with a double fixing structure for a metal back plate, comprising a base 1, the top of the base 1 is fixedly connected to the bottom of a driving member 2, and the top of the base 1 is fixedly connected to the bottom of a clamping member 3.
[0020] The inner wall of the driving member 2 is fixedly connected to the outer wall of the oil inlet passage 4 , and the inner wall of the clamping member 3 is fixedly connected to the outer wall of the oil return passage 5 .
[0021] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the base 1 includes a base 101, a clamping plate 102, a threaded rod 103, a sliding rod 104 and a rotating rod 105. The top of the base 101 is fixedly connected to the bottom of the clamping plate 102, and a sliding groove is provided at the top of the clamping plate 102. One end of the threaded rod 103 passes through the outer wall of the clamping plate 102 and extends to the inside of the sliding groove. A threaded hole is provided inside the sliding rod 104. The inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod 103 located inside the sliding groove, and the outer wall of the bottom of the sliding rod 104 is slidably connected to the inner wall of the sliding groove. A fixing hole is provided on the inner wall of the rotating rod 105, and the inner wall of the fixing hole is fixedly connected to the outer wall of one end of the threaded rod 103. The object to be processed is placed on the clamping plate 102, and the rotating rod 105 is rotated. The rotating rod 105 drives the threaded rod 103 to rotate, and the rotation of the threaded rod 103 drives the sliding rod 104 to slide. The sliding of the sliding rod 104 fixes the object on the clamping plate 102 in the horizontal direction.
[0022] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the driving component 2 is composed of a driving motor 201, a hydraulic oil pump 202 and a hydraulic oil tank 203. The bottom of the driving motor 201 is fixedly connected to the top of the base 101, and one side of the driving motor 201 is fixedly connected to one side of the hydraulic oil pump 202. The output shaft of the driving motor 201 is fixedly connected to the driving shaft of the hydraulic oil pump 202. The bottom of the hydraulic oil pump 202 is provided with an input hole, the top of the hydraulic oil pump 202 is provided with an output hole, and the bottom of the hydraulic oil tank 203 is fixedly connected to the top of the base 101, one side of the hydraulic oil tank 203 is provided with an oil outlet hole, and the front of the hydraulic oil tank 203 is provided with an oil return hole.
[0023] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, the clamping member 3 includes a hydraulic column 301, a hydraulic rod 302 and a fixed plate 303. The inner wall of the hydraulic column 301 is respectively provided with a hydraulic cavity and a sliding cavity, and the inner wall of the sliding cavity is slidably connected to the outer wall of the hydraulic rod 302. The outer wall of the hydraulic column 301 is fixedly connected to the inner wall of the top of the fixed plate 303, and the bottom of the fixed plate 303 is fixedly connected to the top of the base 101. An oil inlet is provided on the outer wall of the hydraulic column 301, and an oil outlet is provided on one side of the hydraulic column 301. A clamping pad is provided at one end of the hydraulic rod 302, and the number of the hydraulic column 301, the hydraulic rod 302 and the fixed plate 303 are all two, and the two hydraulic columns 301, the hydraulic rod 302 and the fixed plate 303 are mirror-imaged along the center line of the base 101.
[0024] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the oil inlet circuit 4 consists of an oil outlet valve 401, an oil outlet pipe 402, a connecting pipe 403, a balancing valve 404 and an oil inlet pipe 405. The outer wall of one end of the oil outlet valve 401 is fixedly plugged with the inner wall of the oil outlet hole, and the inner wall of the other end of the oil outlet valve 401 is fixedly plugged with the outer wall of one end of the oil outlet pipe 402, the outer wall of the other end of the oil outlet pipe 402 is fixedly plugged with the inner wall of the input hole, and the outer wall of one end of the connecting pipe 403 is fixedly plugged with the inner wall of the output hole. An inlet hole is provided at the top of the balancing valve 404, and an outlet hole is provided on one side of the balancing valve 404. The inner wall of the inlet hole is fixedly plugged with the outer wall of the other end of the connecting pipe 403, and the inner wall of the outlet hole is fixedly plugged with the outer wall of one end of the oil inlet pipe 405. The outer wall of the other end of the oil inlet pipe 405 is fixedly plugged with the inner wall of the oil inlet port. The inner wall is fixedly plugged in, and there are two oil inlet pipes 405. The two oil inlet pipes 405 are mirror-set along the center line of the base 101. The oil outlet valve 401 is opened, and the drive motor 201 is started. The drive motor 201 drives the hydraulic oil pump 202 to pump the hydraulic oil in the hydraulic oil tank 203 into the hydraulic oil pump 202 through the oil outlet pipe 402. The hydraulic oil in the hydraulic oil pump 202 enters the balance valve 404 through the connecting pipe 403. The hydraulic oil in the balance valve 404 evenly enters the hydraulic cavity in the two hydraulic columns 301 through the two oil inlet pipes 405. The hydraulic oil in the hydraulic cavity pushes the hydraulic rod 302 through the sliding cavity, and the two hydraulic rods 303 push the clamping pad to fix the objects on the clamping plate 102 horizontally.
[0025] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, the oil return circuit 5 includes a left oil return pipe 501, a right oil return pipe 502, a tee 503 and a bracket 504. The outer wall of one end of the left oil return pipe 501 is fixedly plugged with the inner wall of one of the oil outlets, and the outer wall of the other end of the left oil return pipe 501 is fixedly plugged with the inner wall of one end of the tee 503. The outer wall of one end of the right oil return pipe 502 is fixedly plugged with the inner wall of the other oil outlet, and the outer wall of the other end of the right oil return pipe 502 is fixedly plugged with the inner wall of the other end of the tee 503. The outer wall of the back end of the tee 503 is fixedly plugged with the inner wall of the oil return hole. The bracket 504 is plugged in, and the bottom of the bracket 504 is fixedly connected to the top of the base 101. A support hole is opened on the inner wall of the bracket 504, and the inner wall of the support hole is fixedly connected to the outer wall of the left return oil pipe 501. The top of the bracket 504 is fixedly connected to the bottom of the balance valve 404. When the hydraulic oil pushes the hydraulic rod 302 through the sliding cavity, when the irregularly shaped objects are supported, the hydraulic oil pushes each hydraulic rod 302 to press against the uneven surface of the object, fixes the irregularly shaped objects, and realizes the clamping of irregular objects.
[0026] The use method and advantages of the utility model: When the metal back plate is working with a CNC processing fixture with a double fixing structure, the working process is as follows:
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the object to be processed is placed on the clamping plate 102, and the rotating rod 105 is rotated. The rotating rod 105 drives the threaded rod 103 to rotate, and the rotation of the threaded rod 103 drives the sliding rod 104 to slide. The sliding rod 104 slides to fix the object on the clamping plate 102 in the horizontal direction, and the oil outlet valve 401 is opened, and the driving motor 201 is started. The driving motor 201 drives the hydraulic oil pump 202 to pump the hydraulic oil in the hydraulic oil tank 203 into the hydraulic oil pump 202 through the oil outlet pipe 402, and the hydraulic oil in the hydraulic oil pump 202 enters the balance through the connecting pipe 403. In the valve 404, the hydraulic oil in the balance valve 404 evenly enters the hydraulic cavity in the two hydraulic columns 301 through the two oil inlet pipes 405. The hydraulic oil in the hydraulic cavity pushes the hydraulic rod 302 through the sliding cavity, and the hydraulic rod 303 pushes the clamping pad to fix the object on the clamping plate 102 horizontally. When holding irregularly shaped objects, the hydraulic oil pushes each hydraulic rod 302 to press against the uneven surface of the object according to the surface unevenness of the object, thereby fixing the irregularly shaped objects and achieving the clamping of irregular objects.
[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A CNC machining fixture with a double fixing structure for a metal back plate, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the bottom of the driving member (2), and the top of the base (1) is fixedly connected to the bottom of the clamping member (3); The inner wall of the driving member (2) is fixedly connected to the outer wall of the oil inlet passage (4), and the inner wall of the clamping member (3) is fixedly connected to the outer wall of the oil return passage (5).
2. The CNC machining fixture with a double fixing structure for a metal back plate according to claim 1, characterized in that: The base (1) comprises a base (101), a clamping plate (102), a threaded rod (103), a sliding rod (104) and a rotating rod (105); the top of the base (101) is fixedly connected to the bottom of the clamping plate (102), and a sliding groove is provided at the top of the clamping plate (102); one end of the threaded rod (103) passes through the outer wall of the clamping plate (102) and extends to the inside of the sliding groove; a threaded hole is provided inside the sliding rod (104); the inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod (103) located inside the sliding groove; the outer wall of the bottom of the sliding rod (104) is slidably connected to the inner wall of the sliding groove; the inner wall of the rotating rod (105) is provided with a fixing hole, and the inner wall of the fixing hole is fixedly connected to the outer wall of one end of the threaded rod (103).
3. The CNC machining fixture with a double fixing structure for a metal back plate according to claim 2, characterized in that: The driving component (2) is composed of a driving motor (201), a hydraulic oil pump (202) and a hydraulic oil tank (203); the bottom of the driving motor (201) is fixedly connected to the top of the base (101), and one side of the driving motor (201) is fixedly connected to one side of the hydraulic oil pump (202); the output shaft of the driving motor (201) is fixedly connected to the driving shaft of the hydraulic oil pump (202), and the bottom of the hydraulic oil pump (202) is provided with an input hole, the top of the hydraulic oil pump (202) is provided with an output hole, and the bottom of the hydraulic oil tank (203) is fixedly connected to the top of the base (101); one side of the hydraulic oil tank (203) is provided with an oil outlet hole, and the front of the hydraulic oil tank (203) is provided with an oil return hole.
4. The CNC machining fixture with a double fixing structure for a metal back plate according to claim 2, characterized in that: The clamping member (3) comprises a hydraulic column (301), a hydraulic rod (302) and a fixed plate (303); the inner wall of the hydraulic column (301) is respectively provided with a hydraulic cavity and a sliding cavity, and the inner wall of the sliding cavity is slidably connected to the outer wall of the hydraulic rod (302); the outer wall of the hydraulic column (301) is fixedly connected to the inner wall of the top of the fixed plate (303), and the bottom of the fixed plate (303) is fixedly connected to the top of the base (101); the outer wall of the hydraulic column (301) is provided with an oil inlet, and one side of the hydraulic column (301) is provided with an oil outlet; a clamping pad is provided at one end of the hydraulic rod (302), and the number of the hydraulic column (301), the hydraulic rod (302) and the fixed plate (303) is two, and the two hydraulic columns (301), the hydraulic rod (302) and the fixed plate (303) are mirror-imaged along the center line of the base (101).
5. The CNC machining fixture with a double fixing structure for a metal back plate according to claim 4, characterized in that: The oil inlet passage (4) comprises an oil outlet valve (401), an oil outlet pipe (402), a connecting pipe (403), a balancing valve (404) and an oil inlet pipe (405); the outer wall of one end of the oil outlet valve (401) is fixedly plugged with the inner wall of the oil outlet hole, and the inner wall of the other end of the oil outlet valve (401) is fixedly plugged with the outer wall of one end of the oil outlet pipe (402); the outer wall of the other end of the oil outlet pipe (402) is fixedly plugged with the inner wall of the input hole, and the outer wall of one end of the connecting pipe (403) is fixedly plugged with the inner wall of the output hole. The balancing valve (404) is provided with an inlet hole at the top and an outlet hole at one side. The inner wall of the inlet hole is fixedly connected with the outer wall of the other end of the connecting pipe (403), and the inner wall of the outlet hole is fixedly connected with the outer wall of one end of the oil inlet pipe (405). The outer wall of the other end of the oil inlet pipe (405) is fixedly connected with the inner wall of the oil inlet port. There are two oil inlet pipes (405), and the two oil inlet pipes (405) are arranged in a mirror image along the center line of the base (101).
6. The CNC machining fixture with a double fixing structure for a metal back plate according to claim 5, characterized in that: The oil return circuit (5) comprises a left oil return pipe (501), a right oil return pipe (502), a tee (503) and a bracket (504); the outer wall of one end of the left oil return pipe (501) is fixedly plugged with the inner wall of one of the oil outlets, and the outer wall of the other end of the left oil return pipe (501) is fixedly plugged with the inner wall of one end of the tee (503); the outer wall of one end of the right oil return pipe (502) is fixedly plugged with the inner wall of the other oil outlet, and the right oil return pipe (502) is fixedly plugged with the inner wall of the other oil outlet. The outer wall of the other end is fixedly connected with the inner wall of the other end of the tee (503), the outer wall of the back end of the tee (503) is fixedly connected with the inner wall of the oil return hole, and the bottom of the bracket (504) is fixedly connected with the top of the base (101), a supporting hole is opened on the inner wall of the bracket (504), and the inner wall of the supporting hole is fixedly connected with the outer wall of the left oil return pipe (501), and the top of the bracket (504) is fixedly connected with the bottom of the balance valve (404).