Fixing clamp for focusing assembly lead screw

Abstract

The utility model relates to the technical field of lamp manufacturing, and discloses a fixing clamp of a focusing assembly lead screw, which comprises a base, and a driving gear, a rotating gear, a driving gear and a plurality of groups of lead screw positioning seats which are arranged on the base, a driving handle is arranged on the driving gear, and the driving gear is in meshed connection with the rotating gear; the rotating gear is fixedly connected to the driving gear, the rotating gear and the driving gear are coaxially arranged, each lead screw positioning seat comprises a driven gear connected with the driving gear in a meshed mode and a connecting seat fixedly connected to the driven gear, the driving gear is connected with each driven gear in a meshed mode, and the connecting seats and the driven gears are coaxially arranged. A threaded hole in threaded connection with the lead screw is formed in the connecting seat, and a via hole right opposite to and matched with the threaded hole is formed in the base; according to the fixture, the lamp focusing assembly can be simply and quickly fixed, the screw rod is prevented from being damaged, the production efficiency is improved, and the qualified rate of finished products of the lamp focusing assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp manufacturing, in particular to a fixing fixture for a focusing component screw rod. Background Art

[0002] In the lamp head part of the color-changing lamp in the moving head lamp industry, the focusing component generally uses guide rods and lead screws as the main moving carriers. They can carry light loads, enable the optical component to move up and down to achieve the optical zoom effect, and can also stably support the optical component during the rapid operation of the lamp, so that the focusing component of the color-changing lamp does not shake and obtains the best optical effect. Lead screws can be divided into three categories according to their friction characteristics: namely, sliding lead screws, rolling lead screws, and hydrostatic lead screws. The thread profile of the sliding lead screw is mostly trapezoidal. This thread profile has the advantages of high efficiency, good transmission performance, high precision, and convenient processing compared with the triangular thread.

[0003] The focusing components of color-changing lamps in the moving head lamp industry mainly use sliding lead screws and rolling lead screws. However, during the installation process, it is necessary to pay attention to protecting the external thread of the lead screw to avoid damaging the external thread of the lead screw. Since the lead screw body has an external thread, it is impossible to find a force application point on the lead screw during lamp installation. If tools such as flat-nose pliers, diagonal pliers, and needle-nose pliers are used for installation during installation, the external thread of the lead screw will be worn and the lead screw will be damaged, and the optical effect of the lamp operation will not meet the requirements. To achieve process improvement, a temporary solution is used: the lead screw is wound with two pieces of industrial fabric, and then the lead screw is fixed by clamping with tools, but the lead screw will still be worn, only the degree of wear becomes smaller. Such lead screw installation processes increase manual time consumption and the materials are easily damaged, resulting in low production efficiency and low yield. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixing fixture for a focusing component screw rod, which can simply and quickly fix the lamp focusing component on the fixing fixture of the focusing component screw rod, avoid damaging the screw rod, improve production efficiency, and improve the qualified rate of the finished product of the lamp focusing component.

[0005] To achieve the above purpose, the utility model provides a fixing fixture for a focusing component screw rod, which includes a base and a driving gear, a rotating gear, a driving gear, and multiple groups of screw rod positioning seats arranged on the base. A driving handle is arranged on the driving gear, the driving gear is meshed and connected with the rotating gear, the rotating gear is fixedly connected to the driving gear, the rotating gear and the driving gear are coaxially arranged. Each group of screw rod positioning seats includes a driven gear meshed and connected with the driving gear and a connecting seat fixedly connected to the driven gear. The driving gear is meshed and connected with each driven gear, the connecting seat and the driven gear are coaxially arranged, a threaded hole for threaded connection with the screw rod is arranged on the connecting seat, and a through hole for positive cooperation with the threaded hole is arranged on the base.

[0006] As a preferred solution of the present utility model, the rotating gear is a semicircular gear.

[0007] As a preferred solution of the utility model, the driving handle extends out of the base, and the driving handle is connected to the center of the rotating gear.

[0008] As a preferred solution of the utility model, a locking indication mark and an unlocking indication mark are provided on the base.

[0009] As a preferred solution of the utility model, the base includes a bottom plate and a top plate, and the bottom plate and the top plate are connected by a fixing frame.

[0010] As a preferred solution of the present utility model, the rotating gear is arranged on the top surface of the driving gear.

[0011] As a preferred solution of the utility model, the screw rod positioning seats are provided in three groups, and the three groups of the screw rod positioning seats are evenly spaced along the central circumference of the rotating gear.

[0012] Compared with the prior art, the fixing fixture of the focusing assembly lead screw of the embodiment of the utility model has the following beneficial effects:

[0013] The present invention can insert the screw rod of the lamp focusing assembly through the through hole into the threaded hole of the connecting seat, and then the driving handle is toggled forward to drive the driving gear to rotate, and the driving gear drives the rotating gear to rotate, so that the active gear rotates at the same time, and the active gear drives the driven gear to rotate, so that the connecting seat rotates at the same time, so that the threaded hole is threadedly connected with the screw rod, and the screw rod moves downward to the bottom of the threaded hole, and the thread bite is tightened, so that the screw rod of the lamp focusing assembly is fixed on the fixing fixture of the screw rod of the focusing assembly, so as to carry out the subsequent workpiece installation process of the lamp focusing assembly; when the driving handle is toggled backward to drive the driving gear to rotate, so that the connecting seat rotates in the opposite direction, the thread bite between the threaded hole and the screw rod is loosened, and the screw rod moves upward to exit the threaded hole, so that the screw rod of the lamp focusing assembly can be taken out from the fixing fixture of the screw rod of the focusing assembly; it can be seen that the present invention can simply and quickly fix the lamp focusing assembly to the fixing fixture of the screw rod of the focusing assembly, avoid damaging the screw rod, improve production efficiency, and improve the qualified rate of finished products of the lamp focusing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] Figure 1 A schematic diagram of the structure of a fixing fixture for a focus assembly lead screw provided by the utility model;

[0016] Figure 2Schematic structural view of a fixing jig for a focusing assembly lead screw provided by the present utility model, excluding the top plate;

[0017] In the figure, base 1; bottom plate 11; top plate 12; fixing bracket 13; driving gear 2; driving handle 21; rotating gear 3; driving gear 4; lead screw positioning seat 5; driven gear 51; connecting seat 52; focusing assembly 6; lead screw 61. Specific embodiments

[0018] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0020] As Figures 1 to 2 shown, a fixing jig for a focusing assembly lead screw in a preferred embodiment of the present utility model includes a base 1 and a driving gear 2, a rotating gear 3, a driving gear 4, and multiple groups of lead screw positioning seats 5 provided on the base 1. A driving handle 21 is provided on the driving gear 2. The driving gear 2 is meshed and connected with the rotating gear 3. The rotating gear 3 is fixedly connected to the driving gear 4. Specifically, the rotating gear 3 is arranged on the top surface of the driving gear 4, and the rotating gear 3 and the driving gear 4 are coaxially arranged. Each group of lead screw positioning seats 5 includes a driven gear 51 meshed and connected with the driving gear 4 and a connecting seat 52 fixedly connected to the driven gear 51. The driving gear 4 is meshed and connected with each driven gear 51. The connecting seat 52 and the driven gear 51 are coaxially arranged. A threaded hole for threaded connection with the lead screw 61 is provided on the connecting seat 52, and a through hole for mating with the threaded hole is provided on the base 1.

[0021] The utility model can insert the screw rod 61 of the lamp focusing assembly 6 through the through hole into the threaded hole of the connecting seat 52, and then the driving handle 21 is toggled in the positive direction to drive the driving gear 2 to rotate, and the driving gear 2 drives the rotating gear 3 to rotate, so that the driving gear 4 rotates at the same time, and the driving gear 4 drives the driven gear 51 to rotate, so that the connecting seat 52 rotates at the same time to make the threaded hole and the screw rod 61 threadedly connected, the screw rod moves downward to the bottom of the threaded hole, and the thread is tightened to achieve the fixation of the screw rod 61 of the lamp focusing assembly 6 on the fixing fixture of the focusing assembly screw rod. To carry out the subsequent installation process of the lamp focusing assembly 6; when the driving handle 21 is toggled in the reverse direction to drive the driving gear 2 to rotate, the connecting seat 52 rotates in the reverse direction to loosen the threaded engagement between the threaded hole and the screw rod 61, and the screw rod moves upward to exit the threaded hole, so that the screw rod 61 of the lamp focusing assembly 6 can be taken out from the fixing fixture of the focusing assembly screw rod; it can be seen that the utility model can simply and quickly fix the lamp focusing assembly 6 to the fixing fixture of the focusing assembly screw rod, avoid damaging the screw rod 61, improve production efficiency, and improve the qualified rate of finished products of the lamp focusing assembly 6.

[0022] Exemplarily, the rotating gear 3 is a semicircular gear, which reduces the space occupied by the rotating gear 3 and effectively reduces the volume of the fixing fixture of the focusing assembly lead screw.

[0023] Exemplarily, the driving handle 21 extends out of the base 1 , and the driving handle 21 is connected to the center of the rotating gear 3 , so that the operator can quickly adjust the position of the driving handle 21 to lock or unlock the screw 61 of the lamp focusing assembly 6 .

[0024] Exemplarily, a locking indicator mark and an unlocking indicator mark are provided on the base 1. When the driving handle 21 is moved to the locking indicator mark, it can ensure that the connecting seat 52 and the screw rod 61 are effectively threadedly connected, so that the lamp focusing assembly 6 is fixed to the fixing fixture of the focusing assembly screw rod; when the driving handle 21 is moved to the unlocking indicator mark, the screw rod 61 is withdrawn from the threaded hole of the connecting seat 52, and the lamp focusing assembly 6 can be quickly removed from the fixing fixture of the focusing assembly screw rod.

[0025] Exemplarily, the base 1 includes a bottom plate 11 and a top plate 12, and the bottom plate 11 and the top plate 12 are connected by a fixing frame 13, which effectively protects the gear structure inside the base 1. Specifically, the gears are connected to the bottom plate 11 and the top plate 12 through a gear shaft, and bearings are provided at both ends of the gear shaft to improve the smoothness of gear rotation.

[0026] Exemplarily, the screw rod positioning seats 5 are provided with three groups, and the three groups of screw rod positioning seats 5 are evenly spaced along the central circumference of the rotating gear 3, so that the three screw rods 61 of the lamp focusing assembly 6 can be fixed, thereby improving the stability of the lamp focusing assembly 6 on the fixing fixture of the focusing assembly screw rod.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A fixing fixture for a focusing assembly lead screw, characterized in that: It includes a base and a driving gear, a rotating gear, a driving gear and multiple groups of screw positioning seats arranged on the base, the driving gear is provided with a driving handle, the driving gear is meshed and connected with the rotating gear, the rotating gear is fixedly connected to the driving gear, the rotating gear and the driving gear are coaxially arranged, each group of the screw positioning seats includes a driven gear meshed and connected with the driving gear and a connecting seat fixedly connected to the driven gear, the driving gear is meshed and connected with each of the driven gears, the connecting seat is coaxially arranged with the driven gear, a threaded hole is provided on the connecting seat that is threadedly connected to the screw, and a through hole that is directly matched with the threaded hole is provided on the base.

2. The fixing fixture for the focus assembly lead screw according to claim 1, characterized in that: The rotating gear is a semicircular gear.

3. The fixing fixture of the focus assembly lead screw according to claim 2, characterized in that: The driving handle extends out of the base, and the driving handle is connected to the center of the rotating gear.

4. The fixing fixture for the focus assembly lead screw according to claim 1, characterized in that: The base is provided with a locking indication mark and an unlocking indication mark.

5. The fixing fixture of the focus assembly lead screw according to claim 1, characterized in that: The base comprises a bottom plate and a top plate, and the bottom plate and the top plate are connected via a fixing frame.

6. The fixing fixture of the focus assembly lead screw according to claim 1, characterized in that: The rotating gear is arranged on the top surface of the driving gear.

7. The fixing fixture for the focus assembly lead screw according to claim 1, characterized in that: The screw rod positioning seats are provided in three groups, and the three groups of screw rod positioning seats are evenly spaced along the central circumference of the rotating gear.

Images