Novel adjustable lens and camera interface structure capable of being locked quickly

Abstract

The utility model discloses a novel adjustable and quickly-locked interface structure for a lens and a camera. The novel adjustable and quickly-locked interface structure comprises a deformation mounting seat, a locking ring and an axial adjusting ring, a first external thread is arranged on the outer circumference of the front end of the axial adjusting ring; a deformable ring is arranged at the rear end of the deformable mounting seat, the deformable ring is provided with a first internal thread matched with the first external thread, the deformable ring is uniformly provided with a plurality of first positioning planes, a plurality of first guide arc surfaces and a plurality of notches at intervals, and the notches are formed between the first positioning planes and the first guide arc surfaces; the deformable ring is sleeved with the locking ring, a second positioning plane and a second guide arc surface are arranged at the rear end of the inner circumference of the locking ring, the second positioning plane is attached to the first positioning plane, and the second positioning plane abuts against the first guide arc surface. According to the utility model, the axial distance of the interface can be adjusted without the help of an external tool, relatively stable locking and limiting can be realized, and the adjusting efficiency and precision are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a novel interface structure of a lens and a camera which can be adjusted and quickly locked. Background Art

[0002] At present, the standard C interface of industrial lenses refers to the standard distance from the contact surface between the camera and the lens to the image surface of the lens, and its standard value is 17.526mm. However, there are many companies producing industrial cameras in China. The tolerance of the mechanical parts of the camera, the insufficient precision of machine tool manufacturing, and the wear of the contact surface of the camera make it impossible to guarantee the standard distance of 17.526mm, which leads to the change of the object distance of the telecentric lens. At this time, the distance from the lens to the camera needs to be adjusted. The traditional lens and camera interface is corrected by adding or removing shims, but the increase or decrease of shims can only be based on continuous trial and error and experience judgment, which consumes the time and energy of the adjuster, and cannot be adjusted or locked quickly.

[0003] This research and development aims to invent a new adjustable lens and camera connection structure, which connects the lens to the industrial camera and can adjust the distance from the lens to the camera imaging surface, thereby ensuring that the optimal imaging working distance of the lens is consistent with the theoretical working distance.

[0004] To this end, a novel interface structure of a lens and a camera that can be adjusted and quickly locked is provided, which can adjust the distance from the lens to the imaging surface of the camera and can be adjusted and quickly locked. Utility Model Content

[0005] The purpose of the utility model is to provide a novel interface structure between a lens and a camera which can be adjusted and quickly locked, so as to solve the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel adjustable and quickly lockable lens and camera interface structure, characterized in that it comprises: a deformable mounting seat, a locking ring and an axial adjustment ring; the axial adjustment ring is hollow inside, and a first external thread is arranged on the outer circumference of the front end thereof;

[0007] The deformable mounting seat is hollow inside, and a deformable ring is provided at the rear end of the deformable mounting seat, the deformable ring is provided with a first internal thread matched with the first external thread, a plurality of first positioning planes and a plurality of first guide arc surfaces are evenly spaced on the outer circumference of the deformable ring, and a plurality of notches are evenly provided along the axial direction on the outer circumference of the deformable ring, and the notch is between the first positioning plane and the first guide arc surface;

[0008] The locking ring is sleeved outside the deformable ring, and a plurality of second positioning planes and a plurality of second guide arc surfaces are provided at the rear end of the inner circumference of the locking ring, the second positioning planes are fitted with the first positioning planes, and the second positioning planes are in conflict with the first guide arc surfaces;

[0009] The front end of the deformation mount is connected to the external lens, and the rear end of the axial adjustment ring can be connected to the external camera.

[0010] Furthermore, a third plane is provided on the deformable ring, the notch is provided on the third plane, and the third plane is between the first positioning plane and the first guide arc surface.

[0011] Furthermore, the deformable mounting seat also includes a connecting ring, and the deformable mounting seat is connected to the deformable ring through the connecting ring, and the locking ring is sleeved outside the deformable ring and the connecting ring.

[0012] Furthermore, there are two first positioning planes and two first guide arc surfaces, and four notches. The two first positioning planes are symmetrically arranged about the axis, the two first guide arc surfaces are symmetrically arranged about the axis, the first positioning planes and the first guide arc surfaces are arranged 90 degrees apart about the axis, and the four notches are arranged 90 degrees apart about the axis.

[0013] Furthermore, a plurality of threaded holes connected to the lens are evenly arranged on the outer wall of the front end of the deformable mounting seat.

[0014] Furthermore, a second external thread is provided on the outer wall at the rear end of the axial adjustment ring, and the axial adjustment ring is connected to the external camera via the second external thread.

[0015] Furthermore, the axial adjustment ring further comprises a clearance groove, and the clearance groove is located between the axial adjustment ring and the second external thread.

[0016] Furthermore, there are four second positioning planes and four second guide arc surfaces, the four second positioning planes are arranged at intervals of 90 degrees about the axis, the four second guide arc surfaces are arranged at intervals of 90 degrees about the axis, and the second positioning planes and second guide arc surfaces are arranged at intervals of 90 degrees about the axis.

[0017] Furthermore, the deformable mounting seat, the locking ring and the axial adjustment ring are all made of stainless steel or aluminum alloy.

[0018] Furthermore, a reserved groove is provided on the axial adjustment ring, and the reserved groove is arranged between the axial adjustment ring and the first external thread.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The structure of the utility model can connect the rear end of the lens and the camera, adjust the distance from the lens to the imaging surface of the camera, can adjust the axial distance of the interface without the aid of external tools, and can achieve relatively stable locking limit, greatly improving the efficiency and accuracy of the adjustment, and can adjust and lock quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An exploded view of an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the installation of an embodiment of the utility model;

[0023] Figure 3 for Figure 2 EE profile in ;

[0024] Figure 4 It is a three-dimensional diagram of the deformable mounting seat of the utility model;

[0025] Figure 5 It is a side view of the deformable mounting seat of the utility model;

[0026] Figure 6 It is a three-dimensional diagram of the locking ring of the utility model;

[0027] Figure 7 It is a side view of the locking ring of the utility model;

[0028] Figure 8 It is a three-dimensional diagram of the axial adjustment ring of the utility model;

[0029] In the figure: 1-deformation mounting seat, 2-locking ring, 3-axial adjustment ring, 31-first external thread, 11-deformable ring, 110-first internal thread, 111-first positioning plane, 112-first guide arc surface, 113-notch, 21-second positioning plane, 22-second guide arc surface, 115-third plane, 12-threaded hole, 32-second external thread, 33-avoidance groove, 34-reserved groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-8 The utility model provides a technical solution: a novel interface structure of a lens and a camera that can be adjusted and quickly locked, characterized in that it comprises: a deformable mounting seat 1, a locking ring 2 and an axial adjustment ring 3, wherein the axial adjustment ring 3 is hollow inside and a first external thread 31 is arranged on the outer circumference of the front end thereof;

[0032] The deformable mounting seat 1 is hollow inside, and a deformable ring 11 is provided at the rear end of the deformable mounting seat 1. The deformable ring 11 is provided with a first internal thread 110 matched with the first external thread 31. A plurality of first positioning planes 111 and a plurality of first guide arc surfaces 112 are evenly spaced on the outer circumference of the deformable ring 11. A plurality of notches 113 are evenly provided on the outer circumference of the deformable ring 11 in the axial direction, and the notch 113 is between the first positioning plane 111 and the first guide arc surface 112.

[0033] The locking ring 2 is sleeved outside the deformable ring 11, and the rear end of the inner circumference of the locking ring 2 is provided with a plurality of second positioning planes 21 and a plurality of second guide arc surfaces 22.

[0034] The second positioning plane 21 fits the first positioning plane 111 , and the second positioning plane 21 contacts the first guide arc surface 112 ;

[0035] The front end of the deformable mounting seat 1 is connected to an external lens, and the rear end of the axial adjustment ring 3 can be connected to an external camera.

[0036] The axial adjustment ring 3 is connected to the deformable mounting seat 1 through the first external thread 31, and the locking ring 2 is installed between the deformable mounting seat 1 and the axial adjustment ring 3 through the first guide arc surface 112 and the second guide arc surface 22. During installation, the second positioning plane 21 should fit or conflict with the first guide arc surface 112.

[0037] The locking ring 2 can rotate, and there are 4 second positioning planes 21 evenly distributed on the circumference of the locking ring 2. When not installed, when the second positioning plane 21 and the first guide arc surface 112 are 45 degrees, the second positioning plane 21 and the third plane 115 are in contact or the second positioning plane 21 is above the third plane 115, and the first guide arc surface 112 does not deform; when installed, after the locking ring is rotated 45 degrees, the first positioning plane 111 and the second positioning plane 21 are in contact, so as to limit the rotation of the locking ring 2. At the same time, the second plane and the first guide arc surface 112 are in contact or in conflict, or the second positioning plane 21 and the first guide arc surface 112 are tangent, so as to cause the first guide arc surface 112 to deform, so as to lock the first external thread 31. Adjustable means rotating the axial adjustment ring 3 to adjust and deform the axial distance of the mounting seat 1, that is, to adjust the distance from the camera image plane to the lens.

[0038] In this example: the deformable mounting seat 1 is fixed, the axial adjustment ring 3 is hollow inside, and a first external thread 31 is provided on the outer circumference of its front end. The first external thread 31 passes through the locking ring 2 and is screwed together with the first internal thread 110 of the deformable ring 11; the second positioning plane 21 should be staggered at a 45-degree angle with the first guide arc surface 112. The rotating axial adjustment ring 3 can achieve an axial adjustment amount of ±1mm through the first external thread 31. When adjusted to the right position, the locking ring 2 is rotated at an angle of 45 degrees so that the second positioning plane 21 and the first positioning plane 111 are in contact. Since there are four second positioning planes 21 evenly distributed on the circumference of the locking ring 2, when the second positioning plane 21 and the first positioning plane 111 are in contact, the circular motion of the locking ring 2 is restricted. At the same time, the second positioning plane 21 is in contact with or conflicts with the first guide arc surface 112 to achieve deformation, and the axial adjustment ring 3 is clamped, thereby restricting the circular motion and axial motion of the axial adjustment ring 3. The second positioning plane 21 is a plane protruding from the rear end of the inner circumference of the locking ring 2 .

[0039] Through this adjustment method, the axial distance of the interface can be adjusted without the aid of external tools, and a relatively stable locking limit can be achieved, which greatly improves the efficiency and accuracy of the adjustment. The axial adjustment ring 3 can quickly adjust the axial adjustment amount of ±1mm through the first external thread 31, and the locking ring 2 can be quickly locked by rotating 45 degrees.

[0040] The new adjustable and quickly lockable lens and camera interface structure can connect the lens to the industrial camera and adjust the distance from the lens to the camera imaging surface, thereby ensuring that the optimal imaging of the lens is consistent with the theoretical working distance. The lens and camera interface structure has an axial adjustment function and requires quick adjustment.

[0041] Furthermore, if Figure 1 As shown, the deformable ring 11 is further provided with a third plane 115, the notch 113 is provided on the third plane 115, and the third plane 115 is between the first positioning plane 111 and the first guide arc surface 112. The function of the third plane 115 is to make the locking ring 2 rotate more smoothly and reduce friction.

[0042] Furthermore, the deformable mounting seat 1 further comprises a connecting ring 114, through which the deformable mounting seat 1 is connected to the deformable ring 11, and the locking ring 2 is sleeved outside the deformable ring 11 and the connecting ring 114. The notch 113 extends from the rear end of the connecting ring 14 to the rear end of the deformable ring 11, and the rear end of the inner circumference of the locking ring 2 is provided with a second positioning plane 21 and a second guide arc surface 22, and the front end of the inner circumference of the locking ring 2 corresponds to the outer circumference of the connecting ring 114, and the connecting ring 114 is a deforming portion, and the outer diameters of the deformable ring 11 and the connecting ring 114 are the same and smaller than the outer diameter of the front end of the deformable mounting seat 1, and the connecting ring 114 makes it easier for the deformable ring 11 to deform when squeezed.

[0043] The axial adjustment ring 3 is hollow inside, and a first external thread 31 is provided on the outer circumference of its front end; the deformable mounting seat 1 is hollow inside, and a deformable ring 11 is provided at the rear end of the deformable mounting seat 1, and the deformable ring 11 is provided with a first internal thread 110 that matches the first external thread 31. The locking ring 2 squeezes the first external thread 31 and the first internal thread 110 to achieve a relatively stable locking limit.

[0044] Furthermore, the deformable ring 11 is evenly provided with a plurality of notches 113 along the axial direction. By providing the notches 113, the deformable ring 11 can be more easily deformed when being squeezed by the locking ring 2.

[0045] Further, there are two first positioning planes 111 and two first guiding arc surfaces 112, and four notches 113. The two first positioning planes 111 are symmetrically arranged about the axis, the two first guiding arc surfaces 112 are symmetrically arranged about the axis, and the four notches 113 are arranged 90 degrees apart about the axis. There are four third planes 115. The first positioning plane 111 and the first guiding arc surface 112 are arranged 90 degrees apart about the axis.

[0046] Furthermore, there are four second positioning planes 21 and four second guide arc surfaces 22, and the four second positioning planes 21 are arranged at 90 degrees about the axis, and the four second guide arc surfaces 22 are arranged at 90 degrees about the axis. The second positioning planes 21 and the second guide arc surfaces 22 are arranged at 90 degrees about the axis.

[0047] When the locking ring 2 is screwed toward the deformable mounting seat 1 , the locking ring 2 can squeeze and lock the deformable ring 11 , so that the first internal thread 110 inside the deformable ring 11 is deformed, and then squeeze the axial adjustment ring 3 to complete the fixation of the interface.

[0048] Furthermore, the deformable ring 11 is evenly provided with a plurality of notches 113 along the axial direction. By providing the notches 113, the deformable ring 11 can be made elastic and more easily deformed when being squeezed by the squeezing structure.

[0049] Furthermore, the deformable mounting seat 1, the locking ring 2 and the axial adjustment ring 3 are all made of stainless steel or aluminum alloy.

[0050] Furthermore, a plurality of threaded holes 12 connected to the lens are evenly arranged on the outer wall of the front end of the deformable mounting seat 1 .

[0051] Furthermore, a second external thread 32 is provided on the outer wall at the rear end of the axial adjustment ring 3 , and the axial adjustment ring 3 is connected to the external camera via the second external thread 32 , and the axial adjustment ring 3 can be fixed to the camera.

[0052] Furthermore, if Figure 3As shown, the axial adjustment ring 3 further includes a clearance groove 33 , and the clearance groove 33 is located between the axial adjustment ring 3 and the second external thread 32 , and the clearance groove 33 is used for the second external thread 32 to avoid air.

[0053] Furthermore, if Figure 1 As shown, the number of threaded holes 12 is three.

[0054] Furthermore, if Figure 8 As shown, a reserved groove 34 is provided on the axial adjustment ring 3, and the reserved groove 34 is arranged between the axial adjustment ring 3 and the first external thread 31. The reserved groove 34 is used to reserve space. After the first external thread 31 passes through the locking ring 2, it is connected with the first internal thread 110 of the deformable ring 11. The reserved groove 34 can reserve space. Space needs to be reserved for processing the first external thread 31, which is convenient for processing.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel adjustable and quickly lockable lens and camera interface structure, characterized in that: It comprises: a deformable mounting seat (1), a locking ring (2) and an axial adjustment ring (3); the axial adjustment ring (3) is hollow inside and a first external thread (31) is arranged on the outer circumference of the front end thereof; The deformable mounting seat (1) is hollow inside, and a deformable ring (11) is provided at the rear end of the deformable mounting seat (1). The deformable ring (11) is provided with a first internal thread (110) matched with the first external thread (31). A plurality of first positioning planes (111) and a plurality of first guide arc surfaces (112) are evenly spaced on the outer circumference of the deformable ring (11). A plurality of notches (113) are evenly provided on the outer circumference of the deformable ring (11) along the axial direction, and the notches (113) are between the first positioning planes (111) and the first guide arc surfaces (112). The locking ring (2) is sleeved outside the deformable ring (11), and a plurality of second positioning planes (21) and a plurality of second guiding arc surfaces (22) are provided at the rear end of the inner circumference of the locking ring (2), the second positioning planes (21) and the first positioning planes (111) are in contact, and the second positioning planes (21) and the first guiding arc surfaces (112) are in contact; The front end of the deformable mounting seat (1) is connected to an external lens, and the rear end of the axial adjustment ring (3) is connected to an external camera.

2. The novel adjustable and quickly lockable lens and camera interface structure according to claim 1, characterized in that: The deformable ring (11) is also provided with a third plane (115), the notch (113) is arranged on the third plane (115), and the third plane (115) is between the first positioning plane (111) and the first guide arc surface (112).

3. The novel adjustable and quickly lockable lens and camera interface structure according to claim 1 or 2, characterized in that: The deformable mounting seat (1) also includes a connecting ring (114), and the deformable mounting seat (1) is connected to the deformable ring (11) via the connecting ring (114). The locking ring (2) is sleeved outside the deformable ring (11) and outside the connecting ring (114).

4. The novel adjustable and quickly lockable lens and camera interface structure according to claim 3, characterized in that: There are two first positioning planes (111) and two first guiding arc surfaces (112), and four notches (113). The two first positioning planes (111) are symmetrically arranged about the axis, and the two first guiding arc surfaces (112) are symmetrically arranged about the axis. The first positioning planes (111) and the first guiding arc surfaces (112) are arranged 90 degrees apart about the axis, and the four notches (113) are arranged 90 degrees apart about the axis.

5. The novel adjustable and quickly lockable lens and camera interface structure according to claim 3, characterized in that: A plurality of threaded holes (12) connected to the lens are evenly arranged on the front end outer wall of the deformable mounting seat (1).

6. The novel adjustable and quickly lockable lens and camera interface structure according to claim 3, characterized in that: A second external thread (32) is provided on the outer wall at the rear end of the axial adjustment ring (3), and the axial adjustment ring (3) is connected to an external camera via the second external thread (32).

7. The novel adjustable and quickly lockable lens and camera interface structure according to claim 6, characterized in that: The axial adjustment ring (3) further comprises a clearance groove (33), wherein the clearance groove (33) is located between the axial adjustment ring (3) and the second external thread (32).

8. The novel adjustable and quickly lockable lens and camera interface structure according to claim 5, characterized in that: There are four second positioning planes (21) and four second guiding arc surfaces (22), the four second positioning planes (21) are arranged at 90 degrees intervals about the axis, the four second guiding arc surfaces (22) are arranged at 90 degrees intervals about the axis, and the second positioning planes (21) and the second guiding arc surfaces (22) are arranged at 90 degrees intervals about the axis.

9. The novel adjustable and quickly lockable lens and camera interface structure according to claim 1, characterized in that: The deformable mounting seat (1), the locking ring (2) and the axial adjustment ring (3) are all made of stainless steel or aluminum alloy.

10. The novel adjustable and quickly lockable lens and camera interface structure according to claim 1, characterized in that: The axial adjustment ring (3) is provided with a reserved groove (34), and the reserved groove (34) is arranged between the axial adjustment ring (3) and the first external thread (31).

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