Machining center clamp convenient to adjust and replace
By introducing a liquid collection chamber and a slide structure into the fixture used in the machining center, and using a double-headed motor to drive gear engagement to achieve the movement of the base fixture and multi-angle clamping of the workpiece, the problem of fixed position of the traditional fixture is solved, and the clamping stability and machining efficiency are improved.
Patent Information
- Application Number
- CN202422779460.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The fixtures used in traditional machining centers are fixed in position and cannot be moved, which results in a limited operating range and unstable clamping, making the workpiece prone to deviation.
A base fixture body including a liquid collection chamber and a slide chute was designed. The ring part and the connecting part were driven by the meshing gears of a double-headed motor to realize the displacement of the base fixture and multi-angle clamping of the workpiece, thereby increasing the contact area and stability.
It improves the clamping stability and machining efficiency of the workpiece, prevents deviation, expands the operating range, and enhances the practicality of the machining center.
Smart Images

Figure CN223338855U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps for machining centers, in particular to a clamp for machining centers which is convenient to adjust and replace. Background Art
[0002] The fixture for machining center is a necessary equipment in the turning and milling machining center, which is used to clamp the main body of the workpiece to be processed. The traditional base fixture is fixed, and the rotating tool holder rotates along the center direction of the circle to operate the workpiece, which is convenient for operating multiple surfaces of the workpiece, but the position is fixed and cannot be moved, and the scope of use cannot be expanded.
[0003] The existing machining center has limited clamping positions and is not stable enough in clamping the workpiece. For example, the publication number CN212071045U discloses an automatic loading turning and milling compound machining center, which includes a machine base, a rotary chuck arranged on the machine base and a tool holder arranged above the rotary chuck. A loading mechanism is provided on one side of the rotary chuck, the loading mechanism includes a material tray and a material picking assembly, the material picking assembly includes a support frame and a cantilever, and a pneumatic chuck is connected to the cantilever. A drive motor for driving the support frame to rotate is provided on the machine base, and a drive part for driving the cantilever to move up and down is provided on the support frame. The loading mechanism can realize automatic loading of the turning and milling compound machining center, thereby improving the machining efficiency of the turning and milling compound machining center during mass production. The second motor drives the pneumatic chuck to rotate, which can make the rotation speed of the pneumatic chuck the same as the rotation speed of the rotary chuck, thereby realizing dynamic docking of the pneumatic chuck and the rotary chuck, improving the workpiece clamping rate, and thus improving the machining efficiency of the turning and milling compound machining center, but the base clamp is fixed and cannot be moved, and the operating area is fixed and limited.
[0004] Therefore, it is necessary to invent a machining center fixture that is easy to adjust and replace to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a clamp for a machining center that is easy to adjust and replace, so as to solve the problem in the technology that the base clamp of the operation center is fixed in position, the clamping effect on the workpiece is poor, and it is easy to deviate.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a fixture for a machining center that is easy to adjust and replace, comprising a machining center main body, a CNC mechanism, a turning and milling mechanism and a base fixture main body, the machining center main body is equipped with a CNC mechanism and a turning and milling mechanism, a turning and milling head and a condensate head are provided at the bottom of the turning and milling mechanism, an operating base is provided directly below the turning and milling head and the condensate head, a slide groove is provided on the operating base, and a liquid collecting tank is installed on the operating base, the liquid collecting tank is slidably connected to the slide groove, and the liquid collecting tank is fixedly connected to the base fixture main body, a clamping tank is provided in the base fixture main body, a cavity is provided in the clamping tank, one side of the cavity passes through the clamping tank to form an opening, and gear one is installed at the opening position, gear one is meshed with gear two, a ring member is fixedly connected in the gear two, one side of the clamping member is hinged to the connecting member, and the other side is hinged to the ring member, one end of the connecting member is hinged to the bottom wall of the base fixture main body, and the other end is hinged to the clamping member, and the workpiece to be processed is placed in the clamping member.
[0007] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0008] 1. This utility model provides a liquid collection chamber at the bottom of the base fixture body to collect condensate and waste chips. The base also utilizes a chute to allow the liquid collection chamber and the base fixture body to move as a whole, increasing the contact area of the base fixture body with the workpiece to be processed, thereby improving practicality.
[0009] 2. The operation of the double-headed motor drives the operation of gear one and gear two. By utilizing the linkage of the ring and the connecting parts, the connecting plate is slowly opened and closed. The workpiece is clamped during the closing process. The base fixture body and the liquid collection chamber can be synchronously displaced in the direction of the slide, increasing the contact area between the workpiece and the turning and milling head, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of the liquid collection bin of the utility model;
[0012] Figure 3 This is a schematic diagram of the three-dimensional structure of the chute of the utility model;
[0013] Figure 4 This is a schematic diagram of the internal structure of the base fixture body of the utility model;
[0014] Figure 5 This is a schematic diagram of the connection structure of gear 1 and gear 2 of the utility model.
[0015] Description of reference numerals:
[0016] 1. Machining center body; 2. CNC mechanism; 3. Turning and milling mechanism; 301. Turning and milling head and condensate head; 4. Operating base; 401. Slide; 5. Liquid collection chamber; 6. Base fixture body; 601. Clamping chamber; 602. Cavity; 603. Gear 1; 604. Gear 2; 605. Ring part; 606. Connecting part; 607. Clamping part; 608. Double-head motor; 609. Connecting plate. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0018] The utility model provides Figure 1-Figure 5 The fixture for a machining center that is easy to adjust and replace is shown, comprising a machining center body 1, a numerical control mechanism 2, a turning and milling mechanism 3 and a base fixture body 6. The numerical control mechanism 2 and the turning and milling mechanism 3 are installed on the machining center body 1. A turning and milling head and a condensate head 301 are provided at the bottom of the turning and milling mechanism 3. An operating base 4 is provided directly below the turning and milling head and the condensate head 301. A chute 401 is provided on the operating base 4, and a liquid collecting tank 5 is installed on the operating base 4. The liquid collecting tank 5 is slidably connected to the chute 401, and the base fixture body 6 is fixedly connected to the liquid collecting tank 5. A clamping bin 601 is provided in the base clamp body 6, and a cavity 602 is provided in the clamping bin 601. One side of the cavity 602 passes through the clamping bin 601 to form an opening, and a gear 1 603 is installed at the opening position. Gear 1 603 is meshed and connected with gear 2 604. A ring member 605 is fixedly connected to gear 2 604. One side of the clamping member 607 is hinged to the connecting member 606, and the other side is hinged to the ring member 605. One end of the connecting member 606 is hinged to the bottom wall of the base clamp body 6, and the other end is hinged to the clamping member 607. The workpiece to be processed is placed in the clamping member 607.
[0019] The liquid collection bin 5 provided on the machining center body 1 can collect waste chips and condensate, and can also utilize the base fixture body 6 to perform preliminary positioning and secondary clamping of the workpiece that needs turning and milling, which has a better clamping effect and effectively prevents deviation and position displacement during the turning and milling process.
[0020] The inner diameter of the clamping bin 601 matches the inner diameter of the annular member 605. Gear 1 603 is driven by a double-headed motor 608. A connecting plate 609 is also connected to the double-headed motor 608. The connecting plate 609 is fixedly connected to the bottom of the liquid collection bin 5. There are multiple clamping members 607. The sizes of the multiple clamping members 607 are the same, and the multiple clamping members 607 are distributed in a circular array about the center of the annular member 605. The edges of the multiple clamping members 607 are all rubber strips.
[0021] The turning and milling workpiece to be processed is placed in the clamping chamber 601 and initially clamped. The clamping member 607, which is initially open, is closed by the rotation of gear 1 603 and gear 2 604. The workpiece is slowly clamped during the closing process. After the workpiece is clamped, stable operation can be guaranteed during the turning and milling process.
[0022] The base fixture body 6 is circular, and a plurality of fixed blocks are fixedly arranged at the edge of the base fixture body 6. The plurality of fixed blocks are used for the preliminary positioning and clamping of the workpiece to be processed. The plurality of fixed blocks are distributed in a circular array about the center of the base fixture body 6. A connecting piece 606 is provided. The plurality of connecting pieces 606 are all arc-shaped, and the number of the plurality of connecting pieces 606 is equal to the clamping piece 607, and the positions of the plurality of connecting pieces 606 correspond one-to-one to the clamping piece 607. Drainage grooves are evenly opened in the liquid collection bin 5, and the drainage grooves are used to collect condensate that flows out synchronously during turning and milling.
[0023] The base fixture body 6 can slide in the slide grooves 401 on both sides through the rotation of the double-headed motor 608, driving the displacement of the liquid collection chamber 5, and can move the position of the workpiece during the turning and milling process, thereby increasing the operating area laterally.
[0024] Working principle of this utility model:
[0025] Refer to the instruction manual Figure 1-Figure 5 ,When using the utility model, first place the workpiece that needs to be turned and milled into the base fixture body 6, or into the clamping bin 601 (the size of the workpiece is within the range of the fixed block in the base fixture body 6), and the bottom falls into the clamping bin 601;
[0026] Refer to the instruction manual Figure 3-Figure 5 When using the present invention, the double-headed motor 608 is started to drive the operation of the gear 1 603 and the gear 2 604, so that the connecting member 606 starts to close the clamping member 607 under the action of fixing one end of the ring member 605. During the closing process, the workpiece falling into the clamping chamber 601 is slowly clamped;
[0027] At the same time, under the action of the double-headed motor 608, the liquid collection bin 5 and the base clamp body 6 are driven to rotate along the arc direction of the slide groove 401 during the process of clamping the workpiece (as the shaft of the double-headed motor 608 rotates, the connecting plate 609 is driven to rotate), thereby realizing the horizontal rotation of the liquid collection bin 5. The slight angle rotation better adapts to the collection of coolant during the clamping process of workpieces of different sizes.
[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fixture for a machining center that is easy to adjust and replace, characterized by: The invention comprises a machining center body (1), a numerical control mechanism (2), a milling mechanism (3) and a base fixture body (6); the machining center body (1) is equipped with a numerical control mechanism (2) and a milling mechanism (3); a milling head and a condensate head (301) are provided at the bottom of the milling mechanism (3); an operating base (4) is provided directly below the milling head and the condensate head (301); a chute (401) is provided on the operating base (4); a liquid collecting chamber (5) is installed on the operating base (4); the liquid collecting chamber (5) is slidably connected to the chute (401); a base fixture body (6) is fixedly connected to the liquid collecting chamber (5); and the base fixture body A clamping chamber (601) is provided in the body (6), a cavity (602) is provided in the clamping chamber (601), one side of the cavity (602) passes through the clamping chamber (601) to form an opening, and a gear 1 (603) is installed at the opening position, the gear 1 (603) is meshed with the gear 2 (604), the gear 2 (604) is fixedly connected with an annular member (605), and further includes a connecting member (606), a clamping member (607) hinged to the connecting member (606) on one side and hinged to the annular member (605) on the other side, one end of the connecting member (606) is hinged to the bottom wall of the base clamp body (6), and a workpiece to be processed is placed in the clamping member (607).
2. The fixture for a machining center that is easy to adjust and replace according to claim 1, characterized in that: The inner diameter of the clamping chamber (601) matches the inner diameter of the ring member (605), and the gear one (603) is driven by a double-headed motor (608).
3. The fixture for a machining center that is easy to adjust and replace according to claim 2, characterized in that: The double-headed motor (608) is also connected to a connecting plate (609), and the connecting plate (609) is fixedly connected to the bottom of the liquid collecting bin (5).
4. The fixture for a machining center that is easy to adjust and replace according to claim 1, characterized in that: There are multiple clamping members (607), the sizes of the multiple clamping members (607) are the same, and the multiple clamping members (607) are distributed in a circular array around the center of the annular member (605).
5. The fixture for a machining center that is easy to adjust and replace according to claim 4, characterized in that: The edges of the multiple clamping members (607) are all rubber strips.
6. The fixture for a machining center that is easy to adjust and replace according to claim 1, characterized in that: The base fixture body (6) is circular, and a plurality of fixed blocks are fixedly arranged at the edge of the base fixture body (6), and the plurality of fixed blocks are used for preliminary positioning and clamping of the workpiece to be processed. The plurality of fixed blocks are distributed in a circular array about the center of the base fixture body (6).
7. The fixture for a machining center that is easy to adjust and replace according to claim 4, characterized in that: There are multiple connecting members (606), all of which are arc-shaped. The number of the multiple connecting members (606) is equal to the number of the clamping members (607), and the positions of the multiple connecting members (606) correspond one-to-one to the clamping members (607).
8. The fixture for a machining center that is easy to adjust and replace according to claim 1, characterized in that: Drainage grooves are evenly arranged in the liquid collection chamber (5), and the drainage grooves are used to collect condensed liquid that gushes out synchronously during turning and milling.
Citation Information
Patent Citations
Turning and milling combined machining center with automatic feeding function
CN212071045U