Silicon carbide ceramic pump valve shell clamping device

Abstract

The utility model discloses a silicon carbide ceramic pump valve shell clamping device which comprises a simulation chuck, a piston cavity, a piston column and an ejector pin. According to the clamping device for the silicon carbide ceramic pump valve shell, piston cavities are formed in simulation chucks, the simulation chucks are driven by a clamping driving mechanism to clamp and fix the silicon carbide ceramic pump valve shell, a first worm is further rotated through a first screwing head, and therefore a driving screw is driven to rotate through cooperation of a first worm gear; the piston head is driven by the threaded sleeve to slide in the piston cavity, so that the piston head extrudes the hydraulic oil, the hydraulic oil extrudes the piston column, the piston column ejects the ejector pin outwards, the abutting fixing effect is further achieved, and the silicon carbide ceramic pump valve shell can be clamped and fixed through the slightly-large simulation chuck; and the ejector pin is matched for further fixing, thorough clamping of the silicon carbide ceramic pump valve shell is achieved, and the problem that the clamping groove cannot be placed into the silicon carbide ceramic pump valve shell is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of clamping fixture, concretely is a kind of silicon carbide ceramic pump valve shell clamping device. BACKGROUND

[0002] Silicon carbide ceramic pump valve shell needs to be clamped when processing, but because the shell surface of silicon carbide ceramic pump valve shell is special-shaped structure, so usually the simulation clamp block is set to silicon carbide ceramic pump valve shell is clamped, simulation clamp block inside is equipped with the clamping groove that is compatible with silicon carbide ceramic pump valve shell to place and clamp silicon carbide ceramic pump valve shell, when the size of clamping groove is completely and silicon carbide ceramic pump valve shell is pasted, it is easy to appear the problem that due to the surface machining error of silicon carbide ceramic pump valve shell and cannot be put into clamping groove, so a kind of silicon carbide ceramic pump valve shell clamping device is proposed to solve the above problem. CONTENT OF UTILITY MODEL

[0003] The utility model is to provide a kind of silicon carbide ceramic pump valve shell clamping device, to solve the problem proposed in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of silicon carbide ceramic pump valve shell clamping device, including the simulation chuck that is symmetrically arranged at the outside of silicon carbide ceramic pump valve shell, the clamping groove that is compatible with silicon carbide ceramic pump valve shell is opened in the simulation chuck, the rear side of simulation chuck is equipped with clamping drive mechanism, the piston cavity is opened in simulation chuck, the side close to clamping groove of piston cavity is uniformly provided with extension cavity, the inside of extension cavity is slidably connected with the piston column that is compatible with it, the fixed connection of piston column is equipped with thimble, thimble is inserted into clamping groove, the round hole for the sliding of thimble is opened in simulation chuck, the piston head that is compatible with it is slidably connected in piston cavity, the fixed connection of piston head is equipped with threaded sleeve, the top of threaded sleeve is slidably connected with the top of piston cavity, the round cavity for threaded sleeve is opened in simulation chuck, threaded sleeve is screw-connected with the drive screw that is compatible with it, drive screw is inserted into simulation chuck and is rotatably connected with simulation chuck, the fixed connection of the section of drive screw in simulation chuck is equipped with first worm wheel, the outer side of first worm wheel is equipped with first worm that is engaged with it Transmission, the cavity for the transmission cooperation installation of first worm wheel and first worm is opened in simulation chuck, the both ends of first worm are inserted into simulation chuck and are fixedly connected with first screwing head, the avoiding slot is opened in simulation chuck corresponding to first screwing head, first screwing head can be rotated by hand tool or electric tool.

[0006] As the further scheme of the utility model: the clamping drive mechanism includes fixed disc, the rear surface of fixed disc is fixedly connected with connecting disc, and connecting disc is used to be connected with three grab chuck.

[0007] As a further scheme of the utility model: the front side of the fixed disc is provided with an avoiding cavity, and the two sides of the avoiding cavity of the fixed disc are symmetrically provided with sliding grooves, and the sliding grooves are all slidably connected with sliding seats matched therewith, and the sliding seats are respectively fixedly connected with two simulation chucks.

[0008] As a further scheme of the utility model: a bidirectional screw rod is threadedly penetrated through the sliding seat, and the sliding seat is threadedly connected with the forward and reverse threads of the bidirectional screw rod.

[0009] As a further scheme of the utility model: the bidirectional screw rod is rotatably connected on the symmetrically arranged rotary mounting seat, and the rotary mounting seat is fixedly connected in the avoiding cavity.

[0010] As a further scheme of the utility model: a second worm wheel is fixedly connected to the middle part of the bidirectional screw rod, a second worm gear matched with the second worm wheel is arranged on the outer side of the second worm wheel, and the second worm gear is in mesh transmission with the second worm wheel.

[0011] As a further scheme of the utility model: the second worm gear is rotatably penetrated and connected in the fixed disc, the two ends of the second worm gear are arranged outside the fixed disc and are fixedly connected with a second screwing head, an avoiding groove is arranged on the fixed disc and corresponds to the second screwing head, and the second screwing head can be rotated by a hand tool or an electric tool.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The utility model drives the simulation chuck to clamp and fix the silicon carbide ceramic pump valve shell through the clamping driving mechanism, further rotates the first worm gear through the first screwing head, drives the driving screw rod to rotate through the cooperation of the first worm wheel, drives the piston head to slide in the piston cavity through the threaded sleeve, extrudes the hydraulic oil through the piston head, extrudes the piston column through the hydraulic oil, and the piston column extrudes the ejector pin outward, so that the further abutting and fixing effect is realized, the slightly oversized simulation chuck can be used to clamp and fix the silicon carbide ceramic pump valve shell, the ejector pin is further fixed, the silicon carbide ceramic pump valve shell is completely clamped, and the problem that the clamping groove cannot be put into the silicon carbide ceramic pump valve shell is avoided.

[0014] 2. The second worm gear is driven by the second worm wheel through the cooperation of the second screwing head, the bidirectional screw rod is driven by the second worm gear, the sliding seat is synchronously slid in the sliding groove, so that the simulation chucks are close to each other, and the clamping and fixing effect is formed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structure schematic view of a silicon carbide ceramic pump valve shell clamping device.

[0016] Fig. 2It is a longitudinal section view of a clamping device for a silicon carbide ceramic pump valve shell.

[0017] Fig. 3 It is an enlarged view of A in the clamping device for a silicon carbide ceramic pump valve shell.

[0018] Fig. 4 It is a transverse section view of a clamping device for a silicon carbide ceramic pump valve shell.

[0019] Fig. 5 It is a clamping state display view of a clamping device for a silicon carbide ceramic pump valve shell.

[0020] In the figure: 1, silicon carbide ceramic pump valve shell; 2, simulation chuck; 3, clamping groove; 4, piston cavity; 5, extension cavity; 6, piston column; 7, thimble; 8, piston head; 9, threaded sleeve; 10, drive screw; 11, first worm wheel; 12, first worm; 13, first screw head; 14, fixed disc; 15, connecting disc; 16, avoiding cavity; 17, sliding groove; 18, sliding seat; 19, bidirectional threaded rod; 20, rotary mounting base; 21, second worm wheel; 22, second worm; 23, second screw head. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] Please refer to Figs. 1-5The utility model discloses a kind of silicon carbide ceramic pump valve shell clamping devices, including the simulation chuck 2 of symmetrical setting in the outside of silicon carbide ceramic pump valve shell 1, simulation chuck 2 is opened in with the clamping groove 3 of silicon carbide ceramic pump valve shell 1 adaptation in, the rear side of simulation chuck 2 is equipped with clamping drive mechanism, simulation chuck 2 is opened in piston cavity 4, piston cavity 4 and the side close to clamping groove 3 are evenly opened with extension cavity 5, the inside of extension cavity 5 is slidably connected with piston column 6 of adaptation, piston column 6 is fixedly connected with thimble 7 on, thimble 7 inserts into clamping groove 3, simulation chuck 2 is opened with the round hole for thimble 7 sliding, piston cavity 4 is slidably connected with piston head 8 of adaptation in, piston cavity 4 is filled with hydraulic oil in piston head 8 and the side of extension cavity 5, piston head 8 is fixedly connected with threaded sleeve 9 on, the top of threaded sleeve 9 is slidably connected with the top of piston cavity 4, simulation chuck 2 is opened with the round cavity for threaded sleeve 9 and sliding, threaded sleeve 9 is screw-connected with drive screw 10 of adaptation in, drive screw 10 inserts into simulation chuck 2 and is rotatably connected with simulation chuck 2, the section of drive screw 10 in simulation chuck 2 interior is fixedly connected with first worm wheel 11, the outside of first worm wheel 11 is equipped with first worm 12 of meshing transmission, simulation chuck 2 is opened with the cavity for first worm wheel 11 and first worm 12 transmission cooperation installation, both ends of first worm 12 are fixedly connected with first screw head 13 and are inserted into simulation chuck 2, the avoiding slot of simulation chuck 2 is opened with first screw head 13, and first screw head 13 can be rotated by hand tool or electric tool.

[0023] Through clamping drive mechanism drive simulation chuck 2 is clamped to silicon carbide ceramic pump valve shell 1 and is fixed, further through the rotation of first screw head 13 first worm 12, so as to drive drive screw 10 to rotate through the cooperation of first worm wheel 11, so as to drive piston head 8 to slide in piston cavity 4 through threaded sleeve 9, so that piston head 8 extrudes hydraulic oil, and hydraulic oil extrudes piston column 6, and piston column 6 extrudes thimble 7 outward, so as to realize further tight fixing effect, so that slightly larger simulation chuck 2 can be used to clamp silicon carbide ceramic pump valve shell 1 and is fixed, cooperate thimble 7 and further fixed, realize the complete clamping of silicon carbide ceramic pump valve shell 1, avoid the problem of clamping groove 3 not to be inserted into silicon carbide ceramic pump valve shell 1.

[0024] Clamping drive mechanism includes fixed disc 14, and the rear surface of fixed disc 14 is fixedly connected with connecting disc 15, and connecting disc 15 is used to be connected with three-jaw chuck.

[0025] The front side of fixed disc 14 is opened with avoiding cavity 16, and the both sides of fixed disc 14 are symmetrically opened with sliding groove 17 corresponding to avoiding cavity 16, and the sliding groove 17 is slidably connected with sliding seat 18 of adaptation in, and sliding seat 18 is fixedly connected with two simulation chucks 2 respectively.

[0026] The bidirectional threaded rod 19 is threaded through the slide 18, and the slide 18 is respectively threadedly connected to the front and reverse threads of the bidirectional threaded rod 19.

[0027] The bidirectional threaded rod 19 is rotationally connected to the symmetrical rotation mounting seat 20, and the rotation mounting seat 20 is fixedly connected in the avoiding cavity 16.

[0028] The middle part of the bidirectional threaded rod 19 is fixedly connected with the second worm gear 21, the outer side of the second worm gear 21 is provided with the second worm 22 matched with the second worm gear 21, and the second worm 22 is in meshing transmission with the second worm gear 21.

[0029] The second worm 22 is rotationally connected in the fixed disc 14, the two ends of the second worm 22 are out of the fixed disc 14 and are fixedly connected with the second screw head 23, the avoiding groove is formed in the fixed disc 14 corresponding to the second screw head 23, and the second screw head 23 can be rotated by a hand tool or an electric tool.

[0030] The second worm 22 is rotated through the second screw head 23, the second worm 22 drives the bidirectional threaded rod 19 through the cooperation of the second worm gear 21, the bidirectional threaded rod 19 drives the slide 18 to synchronously slide in the sliding groove 17, so that the simulation chuck 2 is close to each other, and a clamping and fixing effect is formed.

[0031] The working principle of the utility model is:

[0032] In use, the clamping device is connected on the three-jaw chuck through the connecting disc 15, at the moment, one of the simulation chucks 2 is adjusted to be downward, the second screw head 23 is further rotated, the second worm 22 is rotated through the second screw head 23, the second worm 22 drives the bidirectional threaded rod 19 through the cooperation of the second worm gear 21, the bidirectional threaded rod 19 drives the slide 18 to synchronously slide in the sliding groove 17, so that the simulation chuck 2 is close to each other, and a clamping and fixing effect is formed, at the moment, the first screw head 13 is further rotated, the first worm 12 is rotated through the first screw head 13, so that the driving screw rod 10 is driven to rotate through the cooperation of the first worm gear 11, the piston head 8 is driven to slide in the piston cavity 4 through the threaded sleeve 9, so that the piston head 8 extrudes the hydraulic oil, the hydraulic oil extrudes the piston column 6, the piston column 6 extrudes the ejector pin 7 outward, so that a further clamping and fixing effect is realized,

[0033] Although the utility model is explained in detail with reference to the foregoing embodiments, for the person skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A clamping device for a silicon carbide ceramic pump valve housing, comprising a dummy chuck (2) symmetrically arranged outside a silicon carbide ceramic pump valve housing (1), characterized in that: The simulation chuck (2) is provided with a clamping groove (3) matched with the silicon carbide ceramic pump valve shell (1), the rear side of the simulation chuck (2) is provided with a clamping driving mechanism, the simulation chuck (2) is provided with a piston cavity (4), the piston cavity (4) is uniformly provided with an extension cavity (5) close to the side of the clamping groove (3), the inner side of the extension cavity (5) is slidably connected with a piston column (6) matched therewith, the piston column (6) is fixedly connected with a thimble (7), the thimble (7) is inserted into the clamping groove (3), the piston cavity (4) is slidably connected with a piston head (8) matched therewith, the piston head (8) is fixedly connected with a threaded sleeve (9), the threaded sleeve (9) is threadedly connected with a driving screw (10) matched therewith, the driving screw (10) is inserted into the simulation chuck (2) and is rotatably connected with the simulation chuck (2), a first worm wheel (11) is fixedly connected to the part of the driving screw (10) inside the simulation chuck (2), the outer side of the first worm wheel (11) is provided with a first worm (12) in meshing transmission therewith.

2. A clamping device for a silicon carbide ceramic pump and valve housing according to claim 1, characterized in that: The clamping driving mechanism comprises a fixed disc (14), and the rear surface of the fixed disc (14) is fixedly connected with a connecting disc (15).

3. A clamping device for a silicon carbide ceramic pump and valve housing according to claim 2, characterized in that: The front side of the fixed disc (14) is provided with an avoiding cavity (16), and the two sides of the fixed disc (14) corresponding to the avoiding cavity (16) are symmetrically provided with sliding grooves (17), and the sliding grooves (17) are slidably connected with sliding seats (18) matched therewith, and the sliding seats (18) are fixedly connected with the two simulation chucks (2) respectively.

4. A clamping device for a silicon carbide ceramic pump housing according to claim 3, characterized in that: The sliding seats (18) are commonly threadedly penetrated by bidirectional threaded rods (19), and the sliding seats (18) are threadedly connected on the forward and reverse threads of the bidirectional threaded rods (19) respectively.

5. A clamping device for a silicon carbide ceramic pump housing according to claim 4, characterized in that: The bidirectional threaded rods (19) are rotatably connected on the rotation mounting seats (20) arranged symmetrically, and the rotation mounting seats (20) are fixedly connected in the avoiding cavity (16).

6. A clamping device for a silicon carbide ceramic pump housing according to claim 4, characterized in that: The middle part of the bidirectional threaded rod (19) is fixedly connected with a second worm wheel (21), and the outer side of the second worm wheel (21) is provided with a second worm (22) matched therewith, and the second worm (22) is in meshing transmission with the second worm wheel (21).

7. A clamping device for a silicon carbide ceramic pump housing according to claim 6, characterized in that: The second worm (22) is rotatably connected in the fixed disc (14), and the two ends of the second worm (22) are protruded from the fixed disc (14) and are fixedly connected with second screwing heads (23).

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