Centering clamping mechanism for animal on full-automatic positioning instrument

Abstract

The utility model discloses a centering clamping mechanism for an animal on a full-automatic positioning instrument, which belongs to the technical field of biomedical engineering and comprises a bottom plate, and two clamping connecting pieces capable of moving relatively are arranged above the bottom plate; the lower end of the clamping connecting piece penetrates through a movable groove in the bottom plate and then is connected with the lead screw nut and the sliding block. A bidirectional ball screw and a linear sliding rail are arranged at the bottom of the bottom plate in parallel. The lead screw nuts are arranged at the two ends of the two-way ball screw correspondingly. The sliding block is arranged on the linear sliding rail; clamping lug rods are arranged at the ends of the clamping connecting pieces; the bidirectional ball screw is connected with a driving motor or an operation knob. The clamping device is specially used for rapid centering on a full-automatic positioning instrument for animal experiments, is simple in structure and accurate in positioning, and has certain self-locking capacity.

Description

Technical Field

[0001] The utility model belongs to the technical field of biomedical engineering, in particular to a centering clamping mechanism for animals on a full-automatic positioning instrument. Background Art

[0002] In university laboratories and medical research institutes, fully automatic positioning devices are needed to conduct relevant experiments on animals. Prior to this, the experimental parts of the animals must be clamped and fixed, and the clamping and fixing operations need to ensure accuracy.

[0003] The fully automatic positioning device currently on the market uses a unilateral adjustment solution, which is tightened by screws. It needs to be adjusted while finding the center of the animal's fixed place. The operation is cumbersome, resulting in too much ineffective time before the experiment, which affects efficiency. In addition, the original structural processing technology has high requirements, and the structure cannot guarantee consistency. The processed ear rod needs to have low friction and no shaking when sliding. This leads to complex processing technology and inconsistent quality of processed batches. Utility Model Content

[0004] In view of the above problems, the utility model provides a centering clamping mechanism for animals on a fully automatic positioning instrument, which is a clamping device specially used for rapid centering on a fully automatic positioning instrument for animal experiments, has a simple structure, accurate positioning, and a certain self-locking ability.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A centering clamping mechanism for animals on a fully automatic positioning instrument comprises a base plate, on which two relatively movable clamping connectors are arranged; the lower ends of the clamping connectors pass through movable grooves on the base plate and are connected to screw nuts and sliders; bidirectional ball screws and linear slides are arranged parallel to each other at the bottom of the base plate; the screw nuts are respectively arranged at both ends of the bidirectional ball screw; the slider is arranged on the linear slide; a clamping ear rod is arranged at the end of the clamping connector; the bidirectional ball screw is connected to a driving motor or an operating knob.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. Simple and practical, easy to operate. By rotating the screw rod with the operating knob, the clamping mechanism can be controlled to clamp left and right.

[0009] 2. The clamping mechanisms on both sides are installed through the same linear guide rail to ensure the collinearity of the clamping mechanisms on both sides.

[0010] 3. The transmission parts and guide parts of the entire structure are all standard parts with ball structure, which simplifies the structure and ensures the accuracy of the entire structure.

[0011] 4. The clamping mechanisms on both sides are driven by ball screws, and have a certain self-locking effect within a certain clamping force.

[0012] As a further improvement of the above solution, the end of the clamping ear rod is conical.

[0013] The technical effect of the above improvement is to improve the accuracy of the clamping position.

[0014] As a further improvement of the above solution, supporting feet are provided at the four corners of the bottom of the base plate.

[0015] The technical effect of the above improvement is: it is easy to support the bottom plate, generally using conical rubber feet.

[0016] As a further improvement of the above solution, a telescopic rod is vertically arranged on the bottom plate; a cross bar is arranged at the upper end of the telescopic rod; and a spotlight is arranged at the end of the cross bar.

[0017] The technical effect of the above improvement is that the spotlight can not only illuminate the clamping position, but also facilitate the user to quickly locate the center for support through the position of the light.

[0018] As a further improvement of the above solution, a lens with adjustable focal length is arranged at the front end of the spotlight.

[0019] The illumination range of the spotlight can be adjusted by adjusting the position of the lens, thereby facilitating positioning through the light, and the illumination range and illumination degree can be adjusted.

[0020] As a further improvement of the above solution, a positioning bolt for positioning the length of the telescopic rod is provided on the telescopic rod.

[0021] The technical effect of the above improvement is: the telescopic length of the telescopic rod is fixed by the positioning bolt.

[0022] As a further improvement of the above solution, a scale line is centrally arranged on the bottom plate.

[0023] The technical effect of the above improvement is: the scale lines are used to assist the user in quickly determining the clamping position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front structure of this organization.

[0025] Figure 2 This is a top view of the structure of the organization.

[0026] Figure 3 This is a schematic diagram of the bottom structure of this organization.

[0027] Figure 4 This is a side structural diagram of the mechanism.

[0028] Figure 5 Added spotlight structure diagram for this organization.

[0029] Figure 6 Schematic diagram of the structure from a bird's-eye view after adding spotlights to this organization.

[0030] In the figure: 1. Bearing support seat; 2. Screw nut; 3. Nut adapter; 4. Bidirectional ball screw; 5. Linear linear guide rail; 6. Bearing fixing seat; 7. Base plate; 8. Clamping connector; 9. Clamping ear rod; 10. Support foot; 11. Movable slot; 12. Slider; 13. Spotlight; 14. Cross bar; 15. Telescopic rod; 16. Positioning bolt. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution, the utility model is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0032] like Figure 1-2 As shown, the specific scheme of this embodiment is: a centering clamping mechanism for animals on a fully automatic positioning instrument, including a base plate 7, two relatively movable clamping connectors 8 are arranged above the base plate 7; the lower end of the clamping connector 8 passes through the movable groove 11 on the base plate 7, and is connected to the screw nut 2 and the slider 12; a bidirectional ball screw 4 and a linear slide rail are arranged parallel to each other at the bottom of the base plate 7; the screw nut 2 is respectively arranged at both ends of the bidirectional ball screw 4; the slider 12 is arranged on the linear slide rail; a clamping ear rod 9 is arranged at the end of the clamping connector 8; the bidirectional ball screw 4 is connected to the driving motor or the operating knob. The end of the clamping ear rod 9 is conical, and the end of the clamping ear rod 9 is generally hemispherical or arc-shaped; the base plate 7 is generally rectangular; the clamping connector 8 is generally made in an L shape; a mounting hole is provided at the end of the clamping connector 8, and the clamping ear rod 9 is inserted into the mounting hole and fixed by the set screw on the side.

[0033] Support legs 10 are provided at the four corners of the bottom of the bottom plate 7. The height of the support legs 10 is higher than the mechanism at the bottom of the bottom plate 7, so as to prevent the mechanism at the bottom of the bottom plate 7 from touching the desktop.

[0034] The centering structure is composed of a bidirectional ball screw 4, which is composed of a left-hand screw and a right-hand screw with the same lead, to ensure that when rotating, the clamping mechanisms on both sides move in opposite directions and at the same distance.

[0035] The clamping mechanisms on both sides are guided by the same linear guide rail 5, thereby ensuring the collinearity of the clamping mechanisms on both sides.

[0036] The clamping mechanism uses a ball screw as a transmission member. Since the transmission member uses a ball as an intermediate, the friction is small and the transmission accuracy is high, which not only ensures the clamping accuracy but also reduces the structural loss during the transmission process.

[0037] Since the clamping mechanism uses a screw rod as a transmission part, it has a certain self-locking function within a certain clamping force, which is convenient for rapid clamping in animal experiments.

[0038] Both ends of the bidirectional ball screw 4 are sleeved with screw nuts 2, and the screw nuts 2 are installed on the nut adapter 3; the nut adapter 3 is connected to the clamping connector 8; at the same time, the nut adapter 3 is also connected to the slider 12; one end of the bidirectional ball screw 4 is installed on the bearing fixing seat 6 through a bearing, and the other end is installed on the bearing support seat 1 through a bearing; the bearing fixing seat 6 and the bearing support seat 1 are installed at the bottom of the base plate 7.

[0039] like Figure 5-6 As shown, as a preferred embodiment of the above embodiment, a telescopic rod 15 is vertically arranged on the bottom plate 7; a cross bar 14 is arranged on the upper end of the telescopic rod 15; and a spotlight 13 is arranged at the end of the cross bar 14. A lens with adjustable focal length is arranged at the front end of the spotlight 13.

[0040] Specifically, in addition to being able to extend and retract the length of the telescopic rod 15, the cross bar 14 can also rotate around the telescopic rod 15. When used, the height and rotation angle of the cross bar 14 are adjusted so that the spotlight 13 is aligned with the center position of the clamp, thereby achieving faster positioning through the light spot and also illuminating the clamping position.

[0041] As a preferred embodiment of the above embodiment, a positioning bolt 16 for positioning the length of the telescopic rod 15 is provided on the telescopic rod 15 .

[0042] As a preferred embodiment of the above embodiment, a scale line is centrally arranged on the bottom plate 7 .

[0043] The specific working principle of this utility model:

[0044] The innovative device of this product is to clamp the animal's surgical site before using the fully automatic positioning instrument. After the animal's surgical site is placed in the corresponding position, the spotlight 13 can be used to realize light positioning or illuminate the clamping site. By rotating the operating knob of the clamping mechanism or driving the bidirectional ball screw 4 through the driving motor, the clamping connector 8 moves relatively, and the animal's surgical site is automatically clamped in the center through the clamping ear rod 9 to ensure the accuracy of the animal surgery.

[0045] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A centering clamping mechanism for animals on a fully automatic positioning instrument, characterized in that: The invention comprises a base plate (7), and two relatively movable clamping connectors (8) are arranged above the base plate (7); the lower end of the clamping connector (8) passes through a movable groove (11) on the base plate (7) and is connected to a screw nut (2) and a slider (12); a bidirectional ball screw (4) and a linear slide rail are arranged parallel to each other at the bottom of the base plate (7); the screw nut (2) is respectively arranged at both ends of the bidirectional ball screw (4); the slider (12) is arranged on the linear slide rail; a clamping ear rod (9) is arranged at the end of the clamping connector (8); and the bidirectional ball screw (4) is connected to a driving motor or an operating knob.

2. A centering clamping mechanism for animals on a fully automatic positioning device according to claim 1, characterized in that: The end of the clamping ear rod (9) is conical.

3. The centering clamping mechanism for animals on a fully automatic positioning device according to claim 1, characterized in that: Support feet (10) are arranged at the four corners of the bottom of the base plate (7).

4. The centering clamping mechanism for animals on a fully automatic positioning device according to claim 1, characterized in that: A telescopic rod (15) is vertically arranged on the bottom plate (7); a crossbar (14) is arranged at the upper end of the telescopic rod (15); and a spotlight (13) is arranged at the end of the crossbar (14).

5. The centering clamping mechanism for animals on a fully automatic positioning device according to claim 4, characterized in that: A lens with adjustable focal length is arranged at the front end of the spotlight (13).

6. The centering clamping mechanism for animals on a fully automatic positioning device according to claim 4, characterized in that: The telescopic rod (15) is provided with a positioning bolt (16) for positioning the length of the telescopic rod (15).

7. The centering clamping mechanism for animals on a fully automatic positioning device according to claim 1, characterized in that: A scale line is centrally arranged on the bottom plate (7).

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