CN203859812U - Ccd camera adjusting mechanism - Google Patents

Abstract

A CCD camera adjustment mechanism includes a longitudinal adjustment pad, an upper plate, a base, an adjustment screw, a pin shaft, a CCD camera, an adjustment ball, a first tension spring and a second tension spring. The utility model adjusts the pitch and yaw angles of the CCD camera by adjusting the action of the screw rod and the tension spring, and can also adjust multiple angles of the CCD camera in other directions through several threaded holes in the circumferential direction on the upper plate. You can also change the vertical height of the CCD camera by rotating the vertical adjustment pad. The utility model can quickly and efficiently adjust the longitudinal translation of the CCD camera and the adjustment mechanism of multiple angles, can be conveniently applied in optical experiments, and has a stable, reliable and compact overall structure.

Description

CCD camera adjustment mechanism

technical field

The utility model relates to a CCD camera, in particular to a CCD camera adjustment mechanism, which realizes translation and multi-angle adjustment of the CCD camera.

Background technique

In optical-mechanical design, especially in systems such as objective lens detection devices and dental CT imaging devices, CCD cameras are required to capture plane images, and during the installation process of CCD cameras, vertical fine-tuning and angle adjustment of CCD cameras are required.

In the patent document whose publication number is CN203395513U, a kind of CCD adjustment mechanism is disclosed, which drives the slide rail connecting plate to move on the slide rail through the cylinder connecting block, so that the CCD can move vertically up and down; at the same time, the CCD can move vertically and horizontally Fine-tuning, the device has the advantages of good stability and high adjustment accuracy, but the disadvantage is that the overall structure includes the mounting plate, cylinder, cylinder connection block, slide rail, slider, etc., the structure is complex, and the cost is high, and it cannot be sensitive to CCD Adjust the angle of the face.

In the patent document with the publication number CN202751408U, a dental CT imaging CCD angle adjustment mechanism is disclosed, which can fine-tune the three-dimensional angle and displacement of the CCD, thereby helping to ensure the connection between the central point of the CCD and the X-ray source It can be accurately perpendicular to the CCD receiving screen and the X-ray source emitting mirror to improve the quality of the tomographic image. The advantage of this device is high adjustment accuracy, but the disadvantage is that the processing and assembly are complicated, and the cost is high, and it cannot be sensitive to the CCD along the direction perpendicular to the CCD. Adjust the displacement in the direction of the surface.

Contents of the invention

In order to overcome the above-mentioned shortcomings in the prior art, the purpose of this utility model is to provide a CCD camera adjustment mechanism, which can be conveniently applied in optical experiments and satisfy the functions of CCD camera translation and multiple angle adjustments.

The technical solution of the utility model is:

A CCD camera adjustment mechanism is characterized in that it includes: a longitudinal adjustment pad, an upper plate, a base, an adjustment screw, a pin shaft, a CCD camera, an adjustment ball, a first tension spring, a second tension spring,

The longitudinal adjustment pad is composed of a coaxial large cylinder and a small cylinder. There are large threads on the periphery of the large cylinder of the longitudinal adjustment pad, and there are inch threads on the periphery of the small cylinder for installation and fixing of the C interface of the CCD camera. The end face of the longitudinal adjustment pad also has a first through hole; the central axis position of the longitudinal adjustment pad has a light through hole;

The upper plate is an inverted quasi-conical truncated structure, with a spherical groove at the lower end, and a cylindrical cavity for setting and moving the CCD camera in the cone. There is also a section on the cylindrical cavity A cylinder with a larger diameter, the inner wall of the cylinder has threads, which can be matched with the large threads of the longitudinal adjustment pad for installation and adjustment; the cylinder has four screw holes to fix the longitudinal direction through the external jacking screw. Adjusting pads; the tapered surface of the upper plate is evenly distributed with four identical inner square grooves; the top square plate of the upper plate is evenly distributed with eight first screw holes along the circumferential direction; the top surface of the upper plate is square. There are two second through holes at the four corners of the plate, and eight upper pin holes for pin shafts are distributed on the side of the top square plate; the pin shafts are inserted into the upper pin holes and pass through the second through holes transversely. hole;

The base is a cylinder with an inner conical hole, which is convenient for the installation and movement of the vertebral body of the upper plate; The square groove matches; the inner conical hollow of the base

There is a small conical surface at the bottom of the base, which is matched with the spherical groove; the adjusting ball is placed between the small conical surface and the spherical groove to rotate freely; there are four large cylinder angles on the base The chamfers are matched with the screw mounting holes to facilitate the installation and adjustment of the two adjusting screws; there are eight lower pin holes on the four sides of the base cylinder, and there are two pin holes in each of the four corners on the top surface of the base. The third through holes correspond to the second through holes of the upper plate respectively, and the pin shaft is inserted into the lower pin hole and passes through the third through hole transversely;

Fix the two ends of the first extension spring or the second extension spring on the pin in the third through hole; the screw mounting hole of the base is interference fit with the two adjustment screws to realize two The installation and adjustment function of the adjusting screw rod; four second screw holes and four third screw holes are arranged on the two diagonals of the bottom surface of the base 3, and the effect is to facilitate fixing the whole adjustment mechanism from the bottom surface, and it is installed on different A universal translation stage or an adjustment frame for mounting hole spacing; there are four fourth screw holes on one side of the base, which are used to facilitate fixing the entire adjustment mechanism from the side.

Described adjustment screw rod is two screw rods with scale, stretches and expands according to scale drive, and one end of adjustment screw rod contacts with the bottom end of upper plate top surface square plate, is convenient to the pitch and yaw angle adjustment of the CCD camera relatively fixed with upper plate.

The CCD camera is an industrial camera with a C or CS interface, a camera body, data and power interfaces.

The first tension spring and the second tension spring are both tension spring structures, one end is connected to the pin shaft 5 inside the upper plate, and the other end is connected to the pin shaft inside the base. The entire adjustment mechanism needs four first tension spring and four second tension springs.

The first tension spring is installed on the four pins on the side of the upper plate and the base away from the adjusting screw, and is fixed to the pins by the two ends of the spring; the second tension spring is installed on the upper plate and the base. On the four pin shafts close to the adjusting screw rod, the two ends of the spring are fixed with the pin shaft; the modulus of elasticity of the first extension spring is much smaller than that of the second extension spring, so that when the adjustment screw rod is not installed In the case of the second tension spring, the upper plate and the base can be contacted on the side of the screw mounting hole where the adjusting screw is installed.

The beneficial effects of the utility model are:

The utility model can be conveniently applied in optical experiments, and satisfies the functions of CCD camera translation and multiple angle adjustments. Adjust the pitch and yaw angles of the CCD camera by adjusting the function of the screw rod and the tension spring, and adjust multiple angles of the CCD camera in other directions through several threaded holes in the circumferential direction on the upper plate. The vertical height of the CCD camera can be changed by rotating the vertical adjustment pad. The utility model has the advantages of simple and reliable overall structure, convenient adjustment and high stability, and is an adjustment mechanism that can conveniently adjust the longitudinal translation and multiple angles of the CCD camera.

Description of drawings

Figure 1 is a perspective view of the CCD camera adjustment mechanism,

Figure 2 is a top view of the CCD camera adjustment mechanism,

Fig. 3 is a sectional view of a top view of a CCD camera adjustment mechanism,

Fig. 4 is the perspective view of the upper plate 2 of the CCD camera adjustment mechanism,

Fig. 5 is the top view of the upper plate 2 of the CCD camera adjustment mechanism,

Fig. 6 is the sectional view of the top view of the upper plate 2 of the CCD camera adjustment mechanism,

Fig. 7 is the perspective view of the base 3 of the CCD camera adjustment mechanism,

Figure 8 is a bottom view of the CCD camera adjustment mechanism,

FIG. 9 is a structure diagram of the first spring tension spring and the second tension spring of the CCD camera adjustment mechanism.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is described further, but should not limit protection scope of the utility model with this:

As shown in Figures 1-2, the CCD camera adjustment mechanism of the present invention is characterized in that it includes: a longitudinal adjustment pad 1, an upper plate 2, a base 3, an adjustment screw 4, a pin shaft 5, a CCD camera 6, an adjustment ball 7, The first extension spring 8, the second extension spring 9,

As shown in Figures 1-3, the longitudinal adjustment pad 1 is composed of a coaxial large cylinder and a small cylinder. There is a large screw thread 1-1 around the large cylinder of the longitudinal adjustment pad 1, and a thread 1-1 around the small cylinder. Inch thread 1-2, for the C interface of the CCD camera 6 to be installed and fixed; the end face of the longitudinal adjustment pad 1 also has a first through hole 1-3; the central axis of the longitudinal adjustment pad 1 has a light-through holes 1-4;

As shown in Figures 3-6, the upper plate 2 is an inverted quasi-conical truncated structure, with a spherical groove 2-4 at the lower end, and a cylinder for the CCD camera 6 to be set and moved in the cone shaped cavity 2-5, there is also a cylinder 2-6 with a larger diameter on the cylindrical cavity 2-5, and the inner wall of the cylinder 2-6 has a thread 2-1 for the longitudinal adjustment pad 1's large screw thread 1-1 is matched for installation and adjustment; the cylinder 2-6 is provided with four screw holes 2-2 to fix the longitudinal adjustment pad 1 through an external jacking screw; the cone of the upper plate 2 Four identical inner square grooves 2-3 are evenly distributed on the surface; the top square plate of the upper plate 2 has eight first screw holes 2-7 evenly distributed along the circumferential direction; the top square plate of the upper plate 2 There are two second through holes 2-8 at the four corners respectively, and eight upper pin holes 2-9 for the pin shaft 5 are distributed on the side of the top square plate; the pin shaft 5 is inserted into the upper pin hole 2 -9 and transversely through the second through hole 2-8;

As shown in Figures 3-7, the base 3 is a cylinder with an inner conical hole 3-1, which facilitates the installation and movement of the vertebral body of the upper plate 2; the surrounding wall of the base 3 is evenly distributed with four The same outer square groove 3-2 is matched with the inner square groove 2-3 of the upper plate; the bottom end of the inner conical space 3-1 of the base 3 has a small cone surface 3-3, which is compatible with the described base 3. The spherical groove 2-4 is matched; the adjustment ball 7 is placed between the small cone 3-3 and the spherical groove 2-4 to rotate freely; there are four large cylinder angles on the base 3 Chamfering 3-4, cooperates with screw rod mounting hole 3-5, is convenient to the installation and adjustment of two adjusting screw rods 4; There are eight lower pin holes 3-6 on the four sides of described base 3 cylinders, base 3 There are two third through holes 3-7 at the four corners of the top surface, respectively corresponding to the second through holes 2-8 of the upper plate 2, and the pin shaft 5 is inserted into the lower pin hole 3-6 and passes through it transversely The third through hole 3-7;

As shown in Figures 1-8, the two ends of the first extension spring 8 or the second extension spring 9 are fixed on the pin 5 in the third through hole 3-7; The screw mounting holes 3-5 are in interference fit with the two adjusting screw rods 4 to realize the installation and adjustment functions of the two adjusting screw rods 4; four second screw holes 3 are arranged on the two diagonals of the bottom surface of the base 3 -8 and four third screw holes 3-9, the effect is to facilitate fixing the whole adjustment mechanism from the bottom surface, and is installed on a universal translation platform or adjustment frame with different mounting hole spacing; one side of the base 3 has four fourth Screw holes 3-10 are used to facilitate fixing the whole adjustment mechanism from the side.

As shown in Figure 3:

Described adjusting screw rod 4 is two screw rods that have scale, is characterized in that can drive telescopically according to scale, and one end of adjusting screw rod 4 is in contact with the bottom end of upper plate 2 top surface square plate, is convenient to relatively fixed CCD camera 6 with upper plate 2 Adjustable pitch and yaw angles.

The CCD camera 6 is an industrial camera with a C or CS interface 6-1, a camera body 6-2, and a data and power interface 6-3.

As shown in Figure 9, the first tension spring 8 and the second tension spring 9 are both tension spring structures, which are characterized in that one end is connected to the pin shaft 5 inside the upper plate 2, and the other end is connected to the pin inside the base 3 Shaft 5, the entire adjustment mechanism described requires four first tension springs 8 and four second tension springs 9 .

The first tension spring 8 is installed on the four pin shafts 5 on the side away from the adjusting screw 4 of the upper plate 2 and the base 3, and is fixed with the pin shaft 5 by the two ends of the spring; the second tension spring 9 Installed on the four pin shafts 5 near the adjusting screw rod 4 of the upper plate 2 and the base 3, the two ends of the spring are fixed with the pin shafts 5; the modulus of elasticity of the first tension spring 8 is much smaller than that of the second tension spring 8 The modulus of elasticity of the extension spring 9 is such that the second extension spring 9 can contact the upper plate 2 and the base 3 at the side of the screw mounting hole 3-5 where the adjustment screw 4 is installed without the adjustment screw 4 being installed.

The following is a detailed description of the use process of the CCD camera adjustment mechanism:

As shown in Figure 1-Figure 9:

First, the CCD camera 6 is connected to the upper board 2 through the longitudinal adjustment pad 1, and the data line and the power line are drawn out through the inner square groove 2-3 of the upper board 2 and the outer square groove 3-2 of the base 3, and then the whole CCD camera The adjustment mechanism is fixed from the bottom surface through the second screw hole 3-8 and the third screw hole 3-9, or fixed from the side through the fourth screw hole 3-10.

At this time, through an external rod, pass through a first through hole 1-3 on the end face of the longitudinal adjustment pad 1, rotate the longitudinal adjustment pad 1, thereby changing the longitudinal height of the CCD camera 6, and complete the longitudinal translation adjustment of the CCD camera 6, Through the cooperation of the external jacking screw and the screw hole 2-2, the longitudinal adjustment pad 1 is locked.

By turning the two adjusting screw rods 4, the upper plate 2 can be driven to complete the pitch and yaw angle adjustment of the CCD camera 6.

The external screws cooperate with the eight first screw holes 2-7 of the upper plate 2 to realize the function of adjusting the angles in eight directions of the CCD camera 6 .

The diameter, length and other dimensional ratios of the various parts of the CCD translation and multi-angle adjustment mechanism are determined according to the actual situation (conventional technology, not described in detail).

Claims (4)

1. a CCD camera adjusting mechanism, is characterized in that comprising: longitudinally adjusting pad (1), upper plate (2), base (3), adjusting screw(rod) (4), bearing pin (5), CCD camera (6), adjust ball (7), the first extension spring (8), the second extension spring (9):

Described longitudinal adjusting pad (1) consists of coaxial big column and small column one, big column periphery at longitudinal adjusting pad (1) has major thread (1-1), periphery at small column has inch screw thread (1-2), for the C interface of described CCD camera (6), installs fixing; The end face of described longitudinal adjusting pad (1) also has the first through hole (1-3); The middle shaft position of described longitudinal adjusting pad (1) has light hole (1-4);

Described upper plate (2) is inverted accurate circular cone structure, there is a ball recess (2-4) lower end, in cone, there is the cylindrical cavity (2-5) that arranges and move for described CCD camera (6), the upper one section of cylinder (2-6) that diameter is larger in addition of this cylindrical cavity (2-5), the inwall of this cylinder (2-6) has screw thread (2-1), and the major thread (1-1) of longitudinal adjusting pad (1) that confession is described matches and installs and regulate; Uniform four screws of described cylinder (2-6) (2-2), to fix described longitudinal adjusting pad (1) by external jackscrew; Uniform four the identical interior square grooves (2-3) of the conical surface of described upper plate (2); The end face square plate of described upper plate (2) is along the circumferential direction evenly equipped with eight the first screws (2-7); There are respectively two the second through holes (2-8) position, four angles of end face side's plate of described upper plate (2), and the side of end face side's plate is distributed with eight upper pin-and-holes (2-9) that plug for bearing pin (5); Pin-and-hole (2-9) Inner be horizontally through the second through hole (2-8) in described bearing pin (5) insertion;

Described base (3) is a cylinder with Inner conical bore (3-1), and the centrum of being convenient to described upper plate (2) is installed and motion; The perisporium of this base (3) is evenly equipped with four identical outer square grooves (3-2), matches with the interior square groove (2-3) of described upper plate; There is the little conical surface (3-3) bottom of the Inner conical bore (3-1) of described base (3), matches with described ball recess (2-4); Described adjustment ball (7) is placed between this little conical surface (3-3) and ball recess (2-4) and freely rotates; On the cylinder angle of described base (3), there are four large chamferings (3-4), coordinate together with screw rod installing hole (3-5), be convenient to installation and the adjusting of two adjusting screw(rod)s (4); On four sides of described base (3) cylinder, have eight lower pin-and-holes (3-6), on base (3) end face, respectively there are two third through-holes (3-7) position, four angles, corresponding one by one with second through hole (2-8) of upper plate (2) respectively, bearing pin (5) inserts lower pin-and-hole (3-6) and is horizontally through third through-hole (3-7);

In third through-hole (3-7), the two ends of the first extension spring (8) or the second extension spring (9) are fixed on described bearing pin (5); The screw rod installing hole (3-5) of described base (3), with two adjusting screw(rod)s (4) interference fit, realizes installation and the regulatory function of two adjusting screw(rod)s (4); Two diagonal of the bottom surface of described base (3) are provided with four the second screws (3-8) and four the 3rd screws (3-9), effect is to be convenient to the fixing whole adjusting mechanism from bottom surface, is installed on general displacement platform or the adjustment rack with different installing hole spacing; There are four the 4th screws (3-10) side of described base (3), and effect is to be convenient to fix from the side whole adjusting mechanism.

2. CCD camera adjusting mechanism according to claim 1, it is characterized in that described adjusting screw(rod) (4) is the graduated screw rod of tool, according to scale, drive flexible, one end of adjusting screw(rod) (4) contacts with the bottom of upper plate (2) end face side plate, is convenient to regulate with pitching and the deflection angle of the relatively-stationary CCD camera of upper plate (2) (6).

3. CCD camera adjusting mechanism according to claim 1, is characterized in that described CCD camera (6) is an industrial camera with C or CS interface (6-1), camera main-body (6-2), data and power interface (6-3).

4. CCD camera adjusting mechanism according to claim 1, it is characterized in that described the first extension spring (8) and the second extension spring (9) are extension spring structure, one end connects the inner bearing pin (5) of upper plate (2), the other end connects the inner bearing pin (5) of base (3), and described whole adjusting mechanism needs four the first extension springs (8) and four the second extension springs (9);

Described the first extension spring (8) is arranged on four bearing pins (5) away from adjusting screw(rod) (4) one sides of upper plate (2), base (3), fixing by two ends and the bearing pin (5) of spring; Described the second extension spring (9) is arranged on four bearing pins (5) of the close adjusting screw(rod) (4) of upper plate (2), base (3) and goes up, fixing by two ends and the bearing pin (5) of spring; The modulus of elasticity of described the first extension spring (8) is far smaller than the modulus of elasticity of the second extension spring (9), make in the situation that adjusting screw(rod) (4) is not installed, the second extension spring (9) can be by upper plate (2) and base (3) in screw rod installing hole (3-5) side contacts that adjusting screw(rod) (4) is installed.