Electric clamping jaw and machine tool

Abstract

The utility model discloses an electric clamping jaw and a machine tool. An external differential power laser pipe cutting chuck comprises a power assembly and a clamping assembly. The power assembly is provided with a hollow main output shaft, a differential output sun wheel shaft is rotatably arranged in the main output shaft in a penetrating mode, one end of the main output shaft is fixedly connected with the clamping assembly, and the clamping assembly is provided with a first clamping jaws. The clamping device has the advantages that the power assembly is used for achieving overall rotation of the clamping assembly and achieving relative movement and displacement of the differential output sun gear relative to the main output shaft, and then clamping operation of the a first clamping jaws is achieved; according to the technical scheme, the electric clamping jaw can clamp and is suitable for different shapes of clamped objects, the cost is greatly reduced, the size is small, the structure is simple, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the field of clamping devices, in particular to an electric clamp and a machine tool. Background Art

[0002] In special environments such as the medical field or outdoor operations, pneumatic components are often not available or cannot be used, and electric grippers have become irreplaceable products. In actual operations, electric grippers are often required to be able to rotate and clamp. Existing electric grippers mostly use electric slip rings to enable the grippers to clamp in a rotating state, and electric slip rings are friction wearing parts, which results in high cost, low reliability, and large size of electric grippers.

[0003] Therefore, the inventor has proposed a technical solution of an electric clamp after careful research. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the utility model discloses an electric clamp, comprising: a power component and a clamping component; the power component is provided with a hollow main output shaft, in which a differential output sun gear shaft is rotatably passed, one end of the main output shaft is fixedly connected to the clamping component, and the clamping component is provided with a first clamping jaws, and the power component is used to realize the overall rotation of the clamping assembly, and realize the relative movement and displacement of the output differential output sun gear relative to the main output shaft, thereby realizing the clamping operation of the a first clamping jaws, where a is an integer greater than or equal to 2.

[0005] The power assembly further includes an upper pressure plate, a first gear ring body, an electrical cover, a clamping rotating power gear, a clamping rotating motor, a main power sun gear, n first planetary gears, n second planetary gears, a first planet carrier, a differential input gear ring, m third planetary gears, a third gear ring, a differential input driving gear, and a differential motor;

[0006] The upper pressure plate is fixedly connected to one end face of the first gear ring body, the end face of the first gear ring body connected to the upper pressure plate is provided with a first recessed groove, one end of the main output shaft is provided with a first transmission tooth, the first transmission tooth is arranged in the first recessed groove, the first gear ring body is provided with a first through space and a second through space in parallel below the first recessed groove, the clamping rotating power tooth is arranged in the first recessed groove, and is penetrated in the second through space, and one end thereof is fixedly connected to the output end of the clamping rotating motor, the clamping rotating motor is fixedly connected to the first gear ring body, the main output shaft is meshed with the clamping rotating power tooth for transmission, the first gear ring body is meshed with the n first planetary gears for transmission, the n first planetary gears are meshed with the main power sun gear for transmission, the main power sun gear is hollow, and a differential output sun gear shaft is rotatably penetrated therein, one end of the main power sun gear is fixedly connected to the main output shaft, the n first planetary gears n second planetary gears are coaxially arranged below, the n first planetary gears and the n second planetary gears are rotatably arranged on the first planet carrier, the n second planetary gears are meshed with the differential output sun gear shaft for transmission, the differential input ring gear is meshed with the n second planetary gears for transmission, the differential input ring gear is rotatably connected to the first ring gear body, one end face of the differential input ring gear is rotatably provided with m third planetary gears, the m third planetary gears are meshed with the third ring gear for transmission, the third ring gear is fixedly connected to the first ring gear body, the m third planetary gears are meshed with the differential input driving gear for transmission, the differential input driving gear is fixed to the output end of the differential motor, the electrical cover is arranged on the outside of the differential motor and the clamping rotating motor, the electrical cover is fixedly connected to the first ring gear body, the n first planetary gears and the n second planetary gears have the same number of teeth, and n and m are both integers greater than or equal to 2.

[0007] Among them, the clamping assembly also includes a driving screw, a jaw mounting block, and a jaw rotating shaft. A turbine tooth is provided at one end of the first jaw, and the turbine teeth of the a first jaws are all meshed and transmitted with the driving screw. A jaw rotating shaft is fixed on the jaw mounting block, and the first jaw is rotatably connected to the jaw rotating shaft. The jaw mounting block is fixedly connected to the main output shaft, and the driving screw is fixedly connected to the differential output sun gear shaft.

[0008] The clamping assembly includes a second mounting block of the jaw, a jaw driving gear, and a rack jaw. The second mounting block of the jaw is provided with a slide groove, and the rack jaw can be slidably arranged therein. The jaw driving gear is passed through the second mounting block of the jaw and meshes with the rack jaw for transmission. The second mounting block of the jaw is fixedly connected to the main output shaft, and the jaw driving gear is fixedly connected to the differential output sun gear shaft.

[0009] A machine tool comprises a machine body and the above-mentioned electric clamp.

[0010] The utility model adopts the power component to realize the overall rotation of the clamping component, and realizes the relative movement and displacement of the output differential output sun gear with respect to the main output shaft, and then realizes the clamping operation of the a first clamping jaw, so that the electric clamping jaw can clamp and adapt to different clamping object shapes, which greatly reduces the cost, has a small size, a simple structure and a long life. The utility model adopts the power component to realize the overall rotation of the clamping component, and realizes the relative movement and displacement of the output differential output sun gear with respect to the main output shaft, and then realizes the clamping operation of the a first clamping jaw, so that the electric clamping jaw can clamp and adapt to different clamping object shapes, which greatly reduces the cost, has a small size, a simple structure and a long life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a perspective view of an embodiment.

[0013] Figure 2 A cross-sectional view of an embodiment.

[0014] Figure 3 2 is a cross-sectional view of a power assembly of an embodiment.

[0015] Figure 4 An exploded view of a power assembly of an embodiment.

[0016] Figure 5 It is an exploded view of the clamping assembly 02 of the embodiment.

[0017] Figure 6 It is an exploded view of the clamping assembly 03 of the embodiment. DETAILED DESCRIPTION

[0018] The following is a detailed description of the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer definition of the protection scope of the present invention. The accompanying drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and the advantages of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] Example 1

[0023] Refer to the attached Figure 1-6 An electric clamp comprises: a power assembly 01 and a clamping assembly 02; the power assembly 01 is provided with a hollow main output shaft 1001, in which a differential output sun gear shaft 1002 is rotatably passed, one end of the main output shaft 1001 is fixedly connected to the clamping assembly 02, and the clamping assembly 02 is provided with a first clamping jaws 2001. The power assembly 01 is used to realize the overall rotation of the clamping assembly 02, and realize the relative movement and displacement of the output differential output sun gear 1002 relative to the main output shaft 1001, thereby realizing the clamping operation of a first clamping jaws 2001, where a is an integer greater than or equal to 2.

[0024] The power assembly 01 further includes an upper pressure plate 1003, a first gear ring body 1004, an electrical cover 1005, a clamping rotating power gear 1006, a clamping rotating motor 1007, a main power sun gear 1008, n first planetary gears 1009, n second planetary gears 1010, a first planet carrier 1011, a differential input gear ring 1012, m third planetary gears 1013, a third gear ring 1014, a differential input driving gear 1015, and a differential motor 1016;

[0025] The upper pressure plate 1003 is fixedly connected to one end face of the first gear ring body 1004, and the end face of the first gear ring body 1004 connected to the upper pressure plate 1003 is provided with a first groove A001, and a first transmission tooth A002 is provided at one end of the main output shaft 1001, and the first transmission tooth A002 is arranged in the first groove A001. The first gear ring body 1004 is provided with a first through space A003 and a second through space A004 in parallel below the first groove A001, and the clamping rotation power tooth 1006 is arranged in the first groove A001 and penetrates the second through space A004, and its One end is fixedly connected to the output end of the clamping rotating motor 1007, the clamping rotating motor 1007 is fixedly connected to the first gear ring body 1004, the main output shaft 1001 is meshed with the clamping rotating power gear 1006 for transmission, the first gear ring body 1004 is meshed with the n first planetary gears 1009 for transmission, the n first planetary gears 1009 are meshed with the main power sun gear 1008 for transmission, the main power sun gear 1008 is hollow, and a differential output sun gear shaft 1002 is rotatably penetrated therein, one end of the main power sun gear 1008 is fixedly connected to the main output shaft 1001, the n first planetary gears The n second planetary gears 1010 are coaxially arranged below the wheels 1009, the n first planetary gears 1009 and the n second planetary gears 1010 are rotatably arranged on the first planet carrier 1011, the n second planetary gears 1010 are meshed with the differential output sun gear shaft 1002 for transmission, the differential input ring gear 1012 is meshed with the n second planetary gears 1010 for transmission, the differential input ring gear 1012 is rotatably connected to the first ring gear body 1004, and one end surface of the differential input ring gear 1012 is rotatably arranged with m third planetary gears 1013, and the m third planetary gears 101 3 is meshed with the third gear ring 1014 for transmission, the third gear ring 1014 is fixedly connected to the first gear ring body 1004, the m third planetary gears 1013 are meshed with the differential input driving gear 1015 for transmission, the differential input driving gear 1015 is fixed to the output end of the differential motor 1016, an electrical cover 1005 is arranged outside the differential motor 1016 and the clamping rotating motor 1007, the electrical cover 1005 is fixedly connected to the first gear ring body 1004, the n first planetary gears 1009 and the n second planetary gears 1010 have the same number of gear teeth, and n and m are both integers greater than or equal to 2.

[0026] Among them, the clamping assembly 02 also includes a driving screw 2002, a jaw mounting block 2003, and a jaw rotating shaft 2004. A turbine tooth 01 is set at one end of the first jaw 2001. The turbine teeth 01 of a first jaw 2001 are all engaged with the driving screw 2002 for transmission. A jaw rotating shaft 2004 is fixed on the jaw mounting block 2003. The first jaw 2001 is rotatably connected to the jaw rotating shaft 2004. The jaw mounting block 2003 is fixedly connected to the main output shaft 1001, and the driving screw 2002 is fixedly connected to the differential output sun gear shaft 1002.

[0027] The clamping assembly 03 includes a second mounting block 3001 of the clamp, a clamp driving gear 3002, and a rack clamp 3003. The second mounting block 3001 of the clamp is provided with a sliding groove, and the rack clamp 3003 can be slidably arranged therein. The clamp driving gear 3002 is passed through the second mounting block 3001 of the clamp and meshes with the rack clamp 3003 for transmission. The second mounting block 3001 of the clamp is fixedly connected to the main output shaft 1001, and the clamp driving gear 3002 is fixedly connected to the differential output sun gear shaft 1002.

[0028] A machine tool comprises a machine body and the above-mentioned electric clamp.

[0029] Working principle: The power assembly is used to realize the overall rotation of the clamping assembly, as well as the relative movement and displacement of the output differential output sun gear relative to the main output shaft, thereby realizing the clamping operation of a first clamping jaw, so that the electric clamping jaw can clamp and be suitable for different clamping object shapes, which greatly reduces the cost, has a small size, a simple structure and a long service life; three sets of planetary gear trains are arranged in the power assembly, and the first two sets of planetary gear trains use common planetary gears to fix the gear ring of a planetary gear train. The clamping rotation power is input by the main power sun gear, and the differential power is input by the gear ring of the second planetary gear train, so that the output differential output sun gear relative to the main output shaft moves and displaces, and the third set of planetary gear train decelerates and increases the power output of the differential motor and transmits it to the gear ring of the second planetary gear train, which greatly reduces the cost of the electric clamping jaw, has a small size, a simple structure and a long service life.

[0030] The above embodiments and drawings can be extended to other technical fields. The above embodiments and drawings do not limit the product form and style of the utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the utility model.

Claims

1. An electric gripper, characterized in that: include: A power assembly and a clamping assembly; the power assembly is provided with a hollow main output shaft, in which a differential output sun gear shaft is rotatably inserted, one end of the main output shaft is fixedly connected to the clamping assembly, and the clamping assembly is provided with a first clamping jaws. The power assembly is used to realize the overall rotation of the clamping assembly, and realize the relative movement and displacement of the output differential output sun gear relative to the main output shaft, thereby realizing the clamping operation of the a first clamping jaws, and a is an integer greater than or equal to 2.

2. The electric gripper according to claim 1, characterized in that: The power assembly also includes an upper pressure plate, a first gear ring body, an electrical cover, a clamping rotating power gear, a clamping rotating motor, a main power sun gear, n first planetary gears, n second planetary gears, a first planet carrier, a differential input gear ring, m third planetary gears, a third gear ring, a differential input driving gear, and a differential motor; The upper pressure plate is fixedly connected to one end face of the first gear ring body, the end face of the first gear ring body connected to the upper pressure plate is provided with a first recessed groove, one end of the main output shaft is provided with a first transmission tooth, the first transmission tooth is arranged in the first recessed groove, the first gear ring body is provided with a first through space and a second through space in parallel below the first recessed groove, the clamping rotating power tooth is arranged in the first recessed groove, and is penetrated in the second through space, and one end thereof is fixedly connected to the output end of the clamping rotating motor, the clamping rotating motor is fixedly connected to the first gear ring body, the main output shaft is meshed with the clamping rotating power tooth for transmission, the first gear ring body is meshed with the n first planetary gears for transmission, the n first planetary gears are meshed with the main power sun gear for transmission, the main power sun gear is hollow, and a differential output sun gear shaft is rotatably penetrated therein, one end of the main power sun gear is fixedly connected to the main output shaft, the n first planetary gears n second planetary gears are coaxially arranged below, the n first planetary gears and the n second planetary gears are rotatably arranged on the first planet carrier, the n second planetary gears are meshed with the differential output sun gear shaft for transmission, the differential input ring gear is meshed with the n second planetary gears for transmission, the differential input ring gear is rotatably connected to the first ring gear body, one end face of the differential input ring gear is rotatably provided with m third planetary gears, the m third planetary gears are meshed with the third ring gear for transmission, the third ring gear is fixedly connected to the first ring gear body, the m third planetary gears are meshed with the differential input driving gear for transmission, the differential input driving gear is fixed to the output end of the differential motor, the electrical cover is arranged on the outside of the differential motor and the clamping rotating motor, the electrical cover is fixedly connected to the first ring gear body, the n first planetary gears and the n second planetary gears have the same number of teeth, and n and m are both integers greater than or equal to 2.

3. An electric gripper according to claim 1 or 2, characterized in that: The clamping assembly includes a driving screw, a jaw mounting block, and a jaw rotating shaft. A turbine tooth is provided at one end of the first jaw, and the turbine teeth of the a first jaws are all meshed and transmitted with the driving screw. A jaw rotating shaft is fixed on the jaw mounting block, and the first jaw is rotatably connected to the jaw rotating shaft. The jaw mounting block is fixedly connected to the main output shaft, and the driving screw is fixedly connected to the differential output sun gear shaft.

4. An electric gripper according to claim 1 or 2, characterized in that: The clamping assembly includes a second mounting block of the jaw, a jaw driving gear, and a rack jaw. The second mounting block of the jaw is provided with a slide groove, and the rack jaw can be slidably arranged therein. The jaw driving gear is passed through the second mounting block of the jaw and meshes with the rack jaw for transmission. The second mounting block of the jaw is fixedly connected to the main output shaft, and the jaw driving gear is fixedly connected to the differential output sun gear shaft.

5. A machine tool, characterized in that: The invention comprises a body and an electric clamp as claimed in any one of claims 1 to 4.

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