Clamp for key copying machine

Abstract

The utility model discloses a clamp for a key duplicator, and relates to the technical field of key processing, the clamp comprises a base frame, the front side and the rear side of an inner cavity of the base frame are movably connected with threaded rods through bearings, and the surfaces of the threaded rods are sleeved with movable plates in a threaded mode. According to the clamp for the key duplicating machine, a key is placed at the top of a contact point of a U-shaped groove and a fourth supporting plate, then a hand-cranking rotating rod is rotated reversely, so that an L-shaped fixing clamp fixes a key head, a threaded rod arranged on the rear side drives a limiting ratchet wheel to rotate reversely, a limiting rod is driven to move outwards, and a spring and a second rotating rod are arranged, so that the key head is fixed. The connecting ring can rotate reversely, the L-shaped fixing clamp can normally fix the key, when the key is machined, the thread retreating phenomenon occurs, through limiting of the limiting rod, the limiting ratchet wheel cannot rotate forwards, and therefore the phenomenon that a threaded rod rotates forwards, and consequently the key is loosened is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of key processing equipment, in particular to a clamp for a key duplicating machine. Background Art

[0002] Keys are a common unlocking tool in people's lives. The materials used to make keys are mainly copper, zinc, aluminum, iron and other metals. When processing keys, they need to be copied, and a key copying machine is required. When copying keys, they need to be fixed with a clamp.

[0003] The Chinese patent announcement number CN213259011U discloses a clamp for a key duplicating machine, including a base, a knob, a clamping seat and a fixing seat. The base is provided with a central axis, and the central axis is a hollow structure. The knob is provided with a screw, and the screw passes through the central axis. A compression spring is provided between the fixing seat and the clamping seat, and they are movably connected together to form a working area for clamping the key blank. The fixing seat and the clamping seat are sleeved on the outside of the central axis, and the fixing seat is butt-jointed with the base. A positioning block is provided on one side of the base and the fixing seat, and a positioning groove matching the positioning block is provided on one side of the fixing seat and the base. The distance between the clamping seat and the fixing seat is adjusted by rotating the knob to clamp key blanks of different widths, so as to facilitate clamping and fixing or loosening and removing the key, thereby improving the use efficiency of the key duplicating machine. Through the mutual cooperation of the positioning block and the positioning groove and the positioning of the central axis, high-precision positioning of the clamped key blank to be processed is achieved.

[0004] The above-mentioned clamp for the key duplicating machine uses manually rotating screws to fix the keys. When the keys are being processed, the threaded rods may be stressed, causing the threads to retreat, making the key fixation unstable and causing inconvenience in key processing. In response to this, the present application proposes a clamp for a key duplicating machine to solve the above-mentioned problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a clamp for a key duplicating machine, which solves the problem that the above-mentioned clamp fixes the key by manually rotating a screw rod. When the key is being processed, the threaded rod may be subjected to stress, causing the thread to retreat, resulting in unstable key fixation.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a clamp for a key duplicating machine, comprising a base frame, the front and rear sides of the inner cavity of the base frame are movably connected with threaded rods through bearings, the surface of each threaded rod is threadedly sleeved with a movable plate, the top of each movable plate is fixedly provided with an L-shaped fixing clamp, the inner cavity of the base frame is fixedly connected with a first support plate, the inner cavity of the first support plate is movably connected with a first rotating rod through a bearing, the front and rear sides of the first rotating rod are fixedly connected with a first bevel gear, the surface of the right side of the threaded rod is fixedly connected with a second bevel gear, the surface of the second bevel gear is meshed with the surface of the first bevel gear, and a limiting mechanism is fixedly provided on the left side of the rear threaded rod;

[0007] The limiting mechanism includes a limiting ratchet fixedly connected to the rear threaded rod, a second rotating rod is movably provided on the left side of the base frame through a bearing, a connecting ring is fixedly sleeved on the surface of the second rotating rod, the surface of the connecting ring is fixedly connected to the limiting rod, a spring is fixedly provided at the bottom of the limiting rod, and one end of the spring away from the limiting rod is connected to a second support plate fixedly arranged on the side of the base frame.

[0008] Preferably, the right side surface of the second support plate is fixedly connected to the left side surface of the base frame.

[0009] Preferably, there are two L-shaped fixing clamps, which are symmetrically distributed on the left and right. The bottom of the L-shaped fixing clamp is fixedly connected to a third support plate, the right side surface of the left third support plate is fixedly connected to a U-shaped groove, and the left side surface of the right third support plate is fixedly connected to a fourth support plate.

[0010] Preferably, the inner cavity of the U-shaped groove is slidably connected to the surface of the fourth support plate.

[0011] Preferably, a hand-cranked rotating rod is fixedly connected to the left side of the front threaded rod.

[0012] Preferably, the bottom of the limiting rod is in sliding contact with the surface of the limiting ratchet.

[0013] Preferably, a slide groove is provided in the inner cavity of the base frame, and the inner cavity of the slide groove is slidably connected to the surface of the movable plate.

[0014] Beneficial Effects

[0015] The utility model provides a clamp for a key duplicating machine. Compared with the prior art, the utility model has the following beneficial effects:

[0016] The clamp for the key duplicating machine meshes the second bevel gear with the first bevel gear, so that the first rotating rod starts to reverse, and the threaded rods on the front and rear sides reverse synchronously, driving the movable plates on the left and right sides to move inward synchronously, so that the U-shaped groove contacts the fourth support plate. At this time, the key is placed on the top of the contact point between the U-shaped groove and the fourth support plate, and then the hand-cranked rotating rod is reversed, so that the L-shaped fixing clamp fixes the key head, and the limit ratchet is driven to reverse by the threaded rod on the rear side, and the limit rod is driven to move outward. The connecting ring can be reversed by the spring and the second rotating rod, so that the L-shaped fixing clamp can fix the key normally. When the key is being processed, the thread retreat phenomenon occurs, and the limit ratchet cannot be rotated forward by the limiting of the limit rod, thereby avoiding the threaded rod from rotating forward and causing the key to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main view of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Main view of internal structure;

[0019] Figure 3 This is the front view of the key support structure of the utility model;

[0020] Figure 4 This is the front view of the limiting mechanism structure of the utility model.

[0021] In the figure: 1. base frame; 2. limiting mechanism; 3. hand-cranked rotating rod; 4. sliding groove; 5. threaded rod; 6. second bevel gear; 7. first support plate; 8. first rotating rod; 9. first bevel gear; 10. moving plate; 11. L-shaped fixing fixture; 12. third support plate; 13. U-shaped groove; 14. fourth support plate; 201. limiting ratchet; 202. limiting rod; 203. connecting ring; 204. second rotating rod; 205. spring; 206. second support plate. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 4 The utility model provides a technical solution, which specifically includes the following embodiments:

[0024] Embodiment 1:

[0025] A clamp for a key duplicating machine comprises a base frame 1, the front and rear sides of the inner cavity of the base frame 1 are movably connected with threaded rods 5 through bearings, a movable plate 10 is threadedly sleeved on the surface of each threaded rod 5, an L-shaped fixing clamp 11 is fixedly arranged on the top of each movable plate 10, a first supporting plate 7 is fixedly connected to the inner cavity of the base frame 1, a first rotating rod 8 is movably connected to the inner cavity of the first supporting plate 7 through bearings, a first bevel gear 9 is fixedly connected to the front and rear sides of the first rotating rod 8, a second bevel gear 6 is fixedly connected to the surface of the right side of the threaded rod 5, the surface of the second bevel gear 6 is meshed with the surface of the first bevel gear 9, and a limiting mechanism 2 is fixedly arranged on the left side of the rear threaded rod 5;

[0026] The limiting mechanism 2 includes a limiting ratchet 201, a second rotating rod 204 is movably provided on the left side of the base frame 1 through a bearing, a connecting ring 203 is fixedly sleeved on the surface of the second rotating rod 204, a limiting rod 202 is fixedly connected to the surface of the connecting ring 203, a spring 205 is fixedly provided at the bottom of the limiting rod 202, and one end of the spring 205 away from the limiting rod 202 is connected to a second supporting plate 206 fixedly provided on the side of the base frame 1;

[0027] By reversing the hand-cranked rotating rod 3, the threaded rod 5 is driven to reverse, and the meshing of the second bevel gear 6 and the first bevel gear 9 makes the first rotating rod 8 start to reverse, so that the threaded rods 5 on the front and rear sides are synchronously reversed, driving the movable plates 10 on the left and right sides to move inwards synchronously, so that the U-shaped groove 13 contacts the fourth support plate 14. At this time, the key is placed on the top of the contact point between the U-shaped groove 13 and the fourth support plate 14, and then the hand-cranked rotating rod 3 is reversed, so that the L-shaped fixing clamp 11 fixes the key head, and the limit ratchet 201 is driven to reverse by the threaded rod 5 on the rear side, and the limit rod 202 is driven to move outward. The spring 205 and the second rotating rod 204 are set, so that the connecting ring 203 can be reversed, so that the L-shaped fixing clamp 11 can fix the key normally. When the key is processed, the thread retreat phenomenon occurs. The limit rod 202 is limited to prevent the limit ratchet 201 from rotating forward, thereby preventing the threaded rod 5 from rotating forward and causing the key to loosen.

[0028] The right side surface of the second support plate 206 is fixedly connected to the left side surface of the base frame 1;

[0029] The spring 205 is fixed by the second support plate 206, and the limiting rod 202 is used to prevent the threaded rod 5 from rotating forward and causing the key to loosen.

[0030] The threads on the surfaces of the threaded rods 5 at the front and rear sides are arranged in opposite directions.

[0031] There are two L-shaped fixing clamps 11, which are symmetrically distributed on the left and right sides. A third support plate 12 is fixedly connected to the bottom of the L-shaped fixing clamp 11, a U-shaped groove 13 is fixedly connected to the right side surface of the left third support plate 12, and a fourth support plate 14 is fixedly connected to the left side surface of the right third support plate 12;

[0032] The L-shaped fixing fixture 11 is provided to facilitate fixing key heads of different specifications.

[0033] The inner cavity of the U-shaped groove 13 is slidably connected to the surface of the fourth support plate 14;

[0034] By providing the U-shaped groove 13, the fourth support plate 14 can support the key, so as to facilitate the subsequent duplication processing of the key.

[0035] The left side of the front threaded rod 5 is fixedly connected with a hand-cranked rotating rod 3;

[0036] By providing the hand-cranked rotating rod 3, the threaded rod 5 can be rotated, so as to facilitate the fixing of the key.

[0037] The bottom of the limiting rod 202 is in sliding contact with the surface of the limiting ratchet 201;

[0038] By providing the limiting rod 202 and the limiting ratchet 201 , the limiting ratchet 201 cannot rotate forward, thereby preventing the threaded rod 5 from rotating forward and causing the key to loosen.

[0039] The inner cavity of the base frame 1 is provided with a slide groove 4, and the inner cavity of the slide groove 4 is slidably connected with the surface of the movable plate 10;

[0040] By providing the slide slot 4 , the movable plate 10 can only move horizontally, so as to facilitate the movement of the L-shaped fixing fixture 11 .

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] During operation, when the key needs to be fixed, first reverse the hand-cranked rotating rod 3 to drive the front threaded rod 5 to reverse, and based on the meshing connection between the second bevel gear 6 and the first bevel gear 9, the first rotating rod 8 starts to reverse, and then the rear threaded rod 5 reverses synchronously. At this time, the moving plate 10 connected to the front and rear threaded rods 5 moves inward synchronously, so that the U-shaped groove 13 contacts the fourth support plate 14. At this time, place the key on the top of the contact point between the U-shaped groove 13 and the fourth support plate 14, and then reverse the hand-cranked rotating rod 3 so that the L-shaped fixing clamp The tool 11 fixes the key head, and the rear threaded rod 5 is used to drive the limit ratchet 201 to reverse, thereby driving the limit rod 202 to move outward. Based on the cooperation of the set spring 205 and the second rotating rod 204, the connecting ring 203 can be reversed, and the L-shaped fixing clamp 11 can clamp and fix the key. When the key has thread retreat during the processing, the limit rod 202 is used to limit the limit ratchet 201, which cannot rotate forward, thereby avoiding the threaded rod 5 from rotating forward and causing the key to loosen.

Claims

1. A clamp for a key duplicating machine, comprising a base frame (1), characterized in that: The front and rear sides of the inner cavity of the base frame (1) are movably connected to threaded rods (5) through bearings, a movable plate (10) is threadedly sleeved on the surface of each threaded rod (5), and an L-shaped fixing clamp (11) is fixedly provided on the top of each movable plate (10), the inner cavity of the base frame (1) is fixedly connected to a first support plate (7), the inner cavity of the first support plate (7) is movably connected to a first rotating rod (8) through bearings, the front and rear sides of the first rotating rod (8) are fixedly connected to a first bevel gear (9), the right side surface of the threaded rod (5) is fixedly connected to a second bevel gear (6), the surface of the second bevel gear (6) is meshed with the surface of the first bevel gear (9), and a limiting mechanism (2) is fixedly provided on the left side of the rear threaded rod (5); The limiting mechanism (2) comprises a limiting ratchet (201) fixedly connected to the rear threaded rod (5); a second rotating rod (204) is movably provided on the left side of the base frame (1) via a bearing; a connecting ring (203) is fixedly sleeved on the surface of the second rotating rod (204); a limiting rod (202) is fixedly connected to the surface of the connecting ring (203); a spring (205) is fixedly provided at the bottom of the limiting rod (202); an end of the spring (205) away from the limiting rod (202) is connected to a second support plate (206) fixedly arranged on the side of the base frame (1).

2. A clamp for a key duplicating machine according to claim 1, characterized in that: The right side surface of the second support plate (206) is fixedly connected to the left side surface of the base frame (1).

3. The clamp for a key duplicating machine according to claim 1, characterized in that: The number of the L-shaped fixing clamps (11) is two, and the two L-shaped fixing clamps (11) are symmetrically distributed on the left and right sides. The bottom of the L-shaped fixing clamp (11) is fixedly connected to a third support plate (12), the right side surface of the left third support plate (12) is fixedly connected to a U-shaped groove (13), and the left side surface of the right third support plate (12) is fixedly connected to a fourth support plate (14).

4. A clamp for a key duplicating machine according to claim 3, characterized in that: The inner cavity of the U-shaped groove (13) is slidably connected to the surface of the fourth support plate (14).

5. The clamp for a key duplicating machine according to claim 1, characterized in that: The left side of the front threaded rod (5) is fixedly connected with a hand-cranked rotating rod (3).

6. The clamp for a key duplicating machine according to claim 1, characterized in that: The bottom of the limiting rod (202) is in sliding contact with the surface of the limiting ratchet (201).

7. The clamp for a key duplicating machine according to claim 1, characterized in that: The inner cavity of the base frame (1) is provided with a slide groove (4), and the inner cavity of the slide groove (4) is slidably connected to the surface of the movable plate (10).

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