Key copying clamp
By adding support ribs and vertical and horizontal positioning mechanisms to the key copy clamp, the problems of unstable clamping and low accuracy in the prior art are solved, and efficient and accurate key replication is achieved, especially suitable for complex C-level keys.
Patent Information
- Application Number
- CN202510146258.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-05-06
AI Technical Summary
The existing key copy fixtures have instability during clamping and copying, which can easily lead to key dropout, fixture damage and accuracy reduction, especially the inability to accurately copy complex C-level keys.
A key copy fixture installed on the original fixture is designed. By setting the support ribs that are suitable for the key body with a width, the vertical and horizontal positioning mechanism and the clamping plate are used to ensure accurate positioning and stable clamping of the key, and avoid collision between the tool and the fixture.
Improve the accuracy and efficiency of key replication, ensure that the copied keys are consistent and accurate, extend the service life of the fixture, and can adapt to complex C-level key replication.
Smart Images
Figure CN119927653A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of key duplication, and in particular to a key duplication fixture. Background Art
[0002] The vertical key duplication machine is actually a mechanical device for copying. Facing the key machine, the left fixture is a drill and milling tool, and the right fixture is a guide pin for the original key. The structure of the current key machine copy fixture is as simple as a bench vise. The key duplication fixture has trapezoidal jaws on both sides. The side walls of the jaws clamp the thickness planes on the opposite sides of the key body. It is easy for the contact surface of the jaws to only contact the duplicate key at two points on both sides. In this way, when the machine tool cuts the duplicate key, it is easy for the duplicate key to fall off due to loose clamping, causing the tool cutting teeth to crash and break. For the position where the fixture jaws contact the two sides of the duplicate key too much, it is very easy to accelerate the wear of the copy fixture and cause the jaws of the key duplication fixture to deform, so that the size accuracy of the copy key to be copied is reduced, resulting in the fixture jaws cannot be used for duplication. In addition, when processing the lines on the side of the key body, it is necessary to clamp multiple times, otherwise the jaws may interfere with the tool and damage the fixture. The operation is cumbersome, and there is a high probability that the key will be deformed due to excessive clamping. This type of key duplication fixture is mainly designed for Class A and Class B keys on the market. This type of fixture cannot accurately clamp and process the ever-changing Class C complex keys.
[0003] In addition, when duplicating many keys, it is necessary to drill or mill the two sides of the key body, but the old clamp can only be fixed by clamping the two sides of the key body. The tool often hits the clamp, causing the damaged clamp to be irreparable, and the damaged clamp is difficult to reliably clamp the key for processing. This makes the clamp a consumable part, causing the locksmiths who duplicate the keys to replace the clamp every once in a while. The above problems need to be solved by providing a new key duplication clamp.
[0004] The technical problem to be solved by the present application is: how to solve the problem that the existing key duplication clamp is inconvenient to clamp the key, which affects the accuracy and efficiency of key duplication. Summary of the invention
[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a practical key duplication fixture installed on the original fixture. The key duplication fixture of the present application solves the above problems, especially solves the duplication problem of the new C-class key. The key duplication fixture of the present application has the following characteristics:
[0006] (1) The clamping position of this clamp is a non-processing part, that is, only the key handle or key body is clamped to fix the key on the clamp;
[0007] (2) By providing a support rib with a width only half that of a conventional key body, the key to be copied is held up by the support rib, and the tool for milling the edge or drilling the edge will not hit the fixture, thereby avoiding damage to the tool and fixture;
[0008] (3) A set of fixtures includes two bases, a card plate and a set of vertical and horizontal positioning mechanisms, which unify the dimensional accuracy and positioning reference, so the copied keys are also consistent and accurate, and can be successfully processed on one side at a time, greatly improving the efficiency and accuracy of key copying.
[0009] The technical solution adopted by the present invention is: a key copying clamp, including a base, a clamping mechanism and a card plate, there are two bases, and each base corresponds to a group of clamping mechanisms, one side of the base is provided with a support rib along the longitudinal direction, each group of clamping mechanisms includes a pressure strip arranged at one end of the base, the pressure strip and the support rib are located on the same side, the pressure strip and the base are connected by fasteners, the card plate is clamped with the base, a plurality of positioning grooves cooperating with the card plate are provided at longitudinal intervals on the upper side of the base, and also includes a longitudinal and transverse positioning mechanism detachably connected to the base, the longitudinal and transverse positioning mechanism, the card plate and the positioning groove cooperate to position the key.
[0010] The key duplication fixture of the present application is provided with two bases corresponding to the original key and the duplicate key respectively, and a pressure strip is provided at one end of each base. The pressure strip cooperates with a fastener to clamp the handle of the key or the front and bottom surfaces of the key body, thereby increasing the contact area between the key and the pressure strip and improving the stability of clamping. There is no need to clamp the processing parts that need to be drilled and milled, thereby avoiding interference between the tool and the fixture. The processing surface on the same side can be clamped and processed at one time, thereby avoiding tedious operations of disassembling and assembling the key. Moreover, by providing support ribs, the bottom of the key body contacts the top of the support ribs after the key is clamped, thereby effectively avoiding deformation of the key body during processing and improving the accuracy of key duplication. With the help of vertical and horizontal positioning mechanisms, card plates and positioning grooves, it can be ensured that the positions of the original key and the duplicate key clamped on the base are consistent, thereby further improving the accuracy of key duplication. Moreover, the base can be directly installed on a vertical key duplication machine without destroying the original structure of the equipment, thereby having good applicability to the equipment.
[0011] In some embodiments, the vertical and horizontal positioning mechanism includes a first ruler, which includes a first slider slidably connected to the base and a first positioning block arranged on the top of the first slider. The base is provided with a sliding groove that slides with the first slider on the side of the support rib along the longitudinal direction, and the first positioning block is provided with an avoidance groove on the side close to the support rib.
[0012] By adopting the above technical scheme, the first ruler is placed in the slide groove, and then the card plate is inserted into one of the positioning grooves, and the end of the first ruler is abutted against the side of the card plate to define the position of the first ruler, and then the side of the original key is abutted against the side wall of the avoidance groove, and the end angle of the first positioning block is abutted against the positioning notch of the original key to achieve the horizontal and vertical positioning of the original key, and then the locking strip is tightened to lock the original key, and then the card plate and the first ruler are removed and placed on another base, and the card plate is inserted into the positioning groove at the same position, and the above actions are repeated to position the key blank, and finally the two bases are respectively installed on the key duplicating machine for key duplication; by setting the avoidance groove, it can be ensured that the key body is located in the middle position of the support rib to avoid collision with the support rib during the milling process of the tool.
[0013] In some embodiments, the vertical and horizontal positioning mechanism also includes a second ruler, which includes a second slider slidably connected to the base and a second positioning block arranged on the top of the second slider. The base is provided with a sliding groove that slides with the second slider on the side of the support rib along the longitudinal direction, and the second slider is protruded from the side of the second positioning block close to the support rib.
[0014] By adopting the above technical scheme, the second ruler is placed in the slide groove, and then the card plate is inserted into one of the positioning grooves, and the end of the second ruler is abutted against the side of the card plate to define the position of the second ruler, and then the side of the original key is abutted against the side wall of the second positioning block, and the end angle of the second positioning block is abutted against the positioning notch of the original key to achieve the horizontal and vertical positioning of the original key, and then the locking strip is tightened to lock the original key, and then the card plate and the second ruler are removed and placed on another base, so that the card plate is inserted into the positioning groove at the same position, and the above actions are repeated to position the key blank, and finally the two bases are respectively installed on the key duplicating machine for key duplication; by convexly providing a second slider on the side of the second positioning block close to the support rib, it can be ensured that the side wall of the key body that needs to be processed extends out of the support rib, thereby avoiding collision with the support rib during the milling process of the tool.
[0015] In some embodiments, the vertical and horizontal positioning mechanism also includes a sliding positioning member, the sliding positioning member includes a slide seat that slides with the base and a horizontal positioning ruler installed on the slide seat, the slide seat is provided with a base sliding matching guide groove, one side of the slide seat is threadedly connected with a first locking member, the first locking member is inserted into the guide groove from one side of the slide seat, one end of the horizontal positioning ruler is connected to the slide seat, and the other end extends into the guide groove, and a positioning hook is provided at the end of the horizontal positioning ruler extending into the guide groove.
[0016] By adopting the above technical solution, a transverse positioning ruler is provided on the slide seat, and a positioning hook is provided at the end of the transverse positioning ruler to be inserted into the positioning pit of the key body. The positioning hook cooperates with the card plate to limit the position of the original key on the base, and then the card plate is inserted into the same positioning groove on another base, which can ensure that the key blank is in the same position on the base of the original key, thereby ensuring the accuracy of key duplication.
[0017] In some embodiments, the transverse positioning ruler is connected to the slide seat through a second locking piece. The slide seat is provided with a limit groove for sliding cooperation with the transverse positioning ruler. The transverse positioning ruler is provided with a long hole, which extends in a direction perpendicular to the longitudinal direction of the base. The second locking piece passes through the long hole and is threadedly connected to the slide seat.
[0018] By adopting the above technical solution, the length of the transverse positioning ruler extending into the guide groove can be adjusted through the cooperation of the long hole and the second locking member, so that the positioning hook can cooperate with different types of keys, thereby widening the application range of the clamp.
[0019] In some embodiments, the sliding positioning member also includes a height adjustment member threadedly connected to the sliding seat, the limiting groove is arranged at the top of the sliding seat, the height adjustment member extends from the bottom of the sliding seat into the bottom of the limiting groove, and the second locking member is passed through a long hole and threadedly connected to the height adjustment member.
[0020] By adopting the above technical solution, the height of the lateral positioning ruler can be adjusted by adjusting the depth of the height adjustment member screwed into the slide seat, so that the positioning hook matches the key, thereby improving the versatility of the clamp.
[0021] In some embodiments, the sliding positioning member also includes a longitudinal positioning ruler that slides with the sliding seat. The side of the sliding seat is provided with a slot that cooperates with the longitudinal positioning ruler. The slot is opened perpendicular to the support rib, and the longitudinal positioning ruler slides along the slot and extends from the side of the base into the guide groove.
[0022] By adopting the above technical solution, by setting a longitudinal positioning ruler, the position of the slide on the base is determined by using the card plate and the positioning groove, and then the position of the original key on the base is limited by the transverse positioning ruler and the longitudinal positioning ruler. Then, the key blank is fixed at the same position on another base, which can ensure that the key blank is at the same position on the base of the original key, thereby ensuring the accuracy of key duplication.
[0023] In some embodiments, the pressure strip includes a first pressure strip and a second pressure strip which are sequentially arranged along the longitudinal direction of the base, the first pressure strip is connected to the base via a first fastener, and the second pressure strip is connected to the base via a second fastener.
[0024] By adopting the above technical solution, by setting the first pressure strip and the second pressure strip to cooperate in pressing the key, the force on the key can be more evenly distributed, avoiding key warping due to uneven force, and can clamp keys with inconsistent heights between the key handle and the key body, which has better versatility.
[0025] In some embodiments, the clamping mechanism further includes a balance adjustment member threadedly connected to the base, and the balance adjustment member penetrates from the bottom of the base and extends toward the first pressure strip.
[0026] By adopting the above technical solution, by setting a balance adjustment piece, the depth of screwing into the base can be adjusted to ensure that the bottom of the key body and the support rib remain in contact, thereby ensuring the accuracy of key duplication.
[0027] In some embodiments, an avoidance groove is provided at one end of the support rib close to the pressure strip, and a pad for filling the avoidance groove is movably provided on the base.
[0028] By adopting the above technical solution and setting the avoidance groove, a key with a height difference between the key body and the handle can be clamped to ensure that the bottom of the key body is in close contact with the support rib. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a structural schematic diagram of a key duplication fixture of a preferred embodiment of the present invention;
[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the base and the clamping mechanism in the key duplication fixture shown;
[0031] Figure 3 for Figure 1 A schematic diagram of the structural decomposition of the base and the clamping mechanism in the key duplication fixture shown;
[0032] Figure 4 for Figure 1 A schematic diagram of the structure of a sliding positioning member in a key duplication fixture shown;
[0033] Figure 5 for Figure 4 A schematic cross-sectional structure diagram of a sliding positioning member shown;
[0034] Figure 6 This is a schematic diagram of the structure of three common types of keys;
[0035] Figure 7 The key duplication fixture for this application is clamped Figure 6 Schematic diagram of the state structure of type (a) keys;
[0036] Figure 8 The key duplication fixture for this application is clamped Figure 6 Schematic diagram of the state structure of type (b) keys;
[0037] Fig. 9 The key duplication fixture for this application is clamped Figure 6 Schematic diagram of the state structure of type (c) keys.
[0038] In the figure: 100, key duplication fixture; 10, base; 11, support rib; 12, positioning groove; 13, slide groove; 14, avoidance groove; 15, cushion block; 16, forward stop positioning surface; 17, positioning rib; 20, clamping mechanism; 21, first pressure strip; 22, second pressure strip; 23, first fastener; 24, second fastener; 25, spring; 26, balance adjustment member; 27, balance pad; 30, card plate; 40, vertical and horizontal positioning mechanism; 41, first ruler; 411, first slider; 412, first positioning block; 413, avoidance groove; 42, second ruler; 421, second slider; 422, second positioning block; 43, sliding positioning member; 431, slide seat; 432, first locking member; 433, horizontal positioning ruler; 434, positioning hook; 435, second locking member; 436, height adjustment member; 437, vertical positioning ruler. DETAILED DESCRIPTION
[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0040] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0042] See also Figures 1 to 5, which is a key duplication fixture 100 of a preferred embodiment of the present invention, includes a base 10, a clamping mechanism 20 and a card plate 30. There are two bases 10, and each base 10 corresponds to a group of clamping mechanisms 20. A support rib 11 is convexly provided on one side of the base 10 along the longitudinal direction. Each group of clamping mechanisms 20 includes a pressure strip arranged at one end of the base 10, and the pressure strip and the support rib 11 are located on the same side. The pressure strip is connected to the base 10 through fasteners, and the card plate 30 is clamped with the base 10. A plurality of positioning grooves 12 cooperating with the card plate 30 are provided at intervals along the longitudinal direction on the base 10, and also includes a longitudinal and transverse positioning mechanism 40 detachably connected to the base 10. The longitudinal and transverse positioning mechanism 40, the card plate 30 and the positioning groove 12 cooperate to position the key. The key duplication fixture 100 of the present application is provided with two bases 10 respectively corresponding to the original key and the duplicate key, and a pressure strip is provided at one end of each base 10. The pressure strip cooperates with a fastener to clamp the handle of the key or the front and bottom surfaces of the key body, thereby increasing the contact area between the key and the pressure strip and improving the stability of clamping. There is no need to clamp the processing parts that need to be drilled and milled, thereby avoiding interference between the tool and the fixture. The processing surface on the same side can be clamped and processed at one time, thereby avoiding tedious operations of disassembling and assembling the key. In addition, by providing a support rib 11, after the key is clamped, the bottom of the key body contacts the top of the support rib 11, thereby effectively avoiding deformation of the key body during processing and improving the accuracy of key duplication. With the help of the vertical and horizontal positioning mechanism 40, the clamping plate 30 and the positioning groove 12, it can be ensured that the positions of the original key and the duplicate key clamped on the base 10 are consistent, thereby further improving the accuracy of key duplication.
[0043] Optionally, the number of the positioning grooves 12 and the distance between two adjacent positioning grooves 12 can be adjusted according to actual needs. Preferably, in order to facilitate the matching between the clamping plate 30 and the positioning groove 12, the positioning groove 12 passes through the edge of the support rib 11 and the base 10.
[0044] Preferably, in order to ensure the consistency of the reference, the two bases 10 share a clamping plate 30 and a set of vertical and horizontal positioning mechanisms 40 .
[0045] like Figure 1As shown, the longitudinal and transverse positioning mechanism 40 includes a first ruler 41, the first ruler 41 includes a first slider 411 slidably connected to the base 10 and a first positioning block 412 arranged on the top of the first slider 411. The base 10 is provided with a slide groove 13 slidably matched with the first slider 411 on the side of the support rib 11 along the longitudinal direction. The first positioning block 412 is provided with a clearance groove 413 on one side close to the support rib 11, and the other side is flush with the first slider 411. The card plate 30 is used to cooperate with the positioning groove 12 to locate the position of the first ruler 41 in the slide groove 13. When copying the key, it can be ensured that the first ruler 41 is set at the same position on the two bases 10. One of the two sides of the first positioning block 412 is used to abut against the side of the key body to locate the lateral position of the key. The end angle of the first positioning block 412 away from the card plate 30 is abutted against the positioning notch on the key body to locate the longitudinal position of the key. The positioning is convenient and fast, and the repeated positioning error is small. A clearance groove 413 is provided on one side of the first positioning block 412 to ensure that the key body is located in the middle of the support rib 11 and avoid collision between the tool and the support rib 11 during milling.
[0046] Furthermore, in order to prevent the end of the first sliding block 411 from interfering with the positioning accuracy of the first positioning block 412 , both ends of the first positioning block 412 are shorter than both ends of the first sliding block 411 .
[0047] Preferably, since the key is divided into left and right, in order to facilitate the placement of the first ruler 41, two slide grooves 13 are provided on the base 10, and the two slide grooves 13 are respectively arranged on both sides of the support rib 11.
[0048] like Figure 1 As shown, the longitudinal and transverse positioning mechanism 40 also includes a second ruler 42, which includes a second slider 421 slidably connected to the base 10 and a second positioning block 422 arranged on the top of the second slider 421. The base 10 is provided with a slide groove 13 slidably matched with the second slider 421 on the side of the support rib 11 along the longitudinal direction, and the second slider 421 is protrudingly provided on the side of the second positioning block 422 close to the support rib 11. The structure of the second ruler 42 is similar to that of the first ruler 41, except that the second sliders 421 are protrudingly provided on both sides of the second positioning block 422 of the second ruler 42, and the function is also similar to that of the first ruler 41. By protruding the second slider 421 on the side of the second positioning block 422 close to the support rib 11, it can be ensured that the side wall of the key body that needs to be processed extends out of the support rib 11, so as to avoid collision between the tool and the support rib 11 during milling.
[0049] Preferably, the lengths of the second slider 421 protruding from both sides of the second positioning block 422 can be set to be different, and different sides can be selected as positioning references according to the size of the key to be processed.
[0050] like Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment, the vertical and horizontal positioning mechanism 40 also includes a sliding positioning member 43, the sliding positioning member 43 includes a slide 431 that slides with the base 10 and a horizontal positioning ruler 433 installed on the slide 431, the slide 431 is provided with a guide groove for sliding with the base 10, one side of the slide 431 is threadedly connected with a first locking member 432, the first locking member 432 is inserted into the guide groove from one side of the slide 431, one end of the horizontal positioning ruler 433 is connected to the slide 431, and the other end extends into the guide groove, and a positioning hook 434 is provided at the end of the horizontal positioning ruler 433 that extends into the guide groove. The shape of the guide groove matches the outer contour of the base 10. By providing a transverse positioning ruler 433 on the slide 431 and a positioning hook 434 at the end of the transverse positioning ruler 433, the positioning hook 434 cooperates with the card plate 30 to limit the position of the original key on the base 10, and then the card plate 30 is inserted into the same positioning groove 12 on another base 10, so as to ensure that the key blank is at the same position on the original key base 10, thereby ensuring the accuracy of key duplication.
[0051] Preferably, in order to facilitate the rotation of the first locking member 432 , a knob is further provided at one end of the first locking member 432 where the sliding seat 431 is protruding, and the surface of the knob is provided with anti-slip grooves.
[0052] Furthermore, the transverse positioning ruler 433 is connected to the slide 431 through a second locking member 435. The slide 431 is provided with a limit groove (not marked in the figure) in which the transverse positioning ruler 433 slides. The transverse positioning ruler 433 is provided with a long hole (not marked in the figure), which extends in a direction perpendicular to the longitudinal direction of the base 10. The second locking member 435 passes through the long hole and is threadedly connected to the slide 431. Through the cooperation between the long hole and the second locking member 435, the length of the transverse positioning ruler 433 extending into the guide groove can be adjusted, so that the positioning hook 434 can cooperate with different types of keys, thereby broadening the versatility of the clamp.
[0053] Preferably, positioning hooks 434 of different sizes and shapes can be provided at both ends of the transverse positioning ruler 433. When in use, the corresponding positioning hook 434 can be selected according to the model of the key for positioning, which has better versatility.
[0054] Furthermore, the sliding positioning member 43 also includes a height adjustment member 436 threadedly connected to the slide seat 431, a limiting groove is set at the top of the slide seat 431, the height adjustment member 436 extends from the bottom of the slide seat 431 into the bottom of the limiting groove, and the second locking member 435 passes through a long hole and is threadedly connected to the height adjustment member 436. By adjusting the depth of the height adjustment member 436 screwed into the slide seat 431, the height of the horizontal positioning ruler 433 can be adjusted, so that the positioning hook 434 matches the key, thereby improving the versatility of the clamp.
[0055] Furthermore, the sliding positioning member 43 also includes a longitudinal positioning ruler 437 that is slidably matched with the slide 431. A slot (not shown) that is matched with the longitudinal positioning ruler 437 is provided on the side of the slide 431. The slot is perpendicular to the support rib 11. The longitudinal positioning ruler 437 slides along the slot and extends into the guide groove from the side of the base 10. By providing the longitudinal positioning ruler 437, the position of the slide 431 on the base 10 is determined by using the card plate 30 and the positioning groove 12, and then the position of the original key on the base 10 is limited by the transverse positioning ruler 433 and the longitudinal positioning ruler 437, and then the key blank is fixed at the same position on another base 10, so that the key blank can be ensured to be at the same position on the base 10 of the original key, and the accuracy of key duplication can be ensured.
[0056] Preferably, for ease of use, there are two longitudinal positioning rulers 437 , which are respectively disposed on opposite sides of the slide 431 .
[0057] Optionally, in order to prevent the longitudinal positioning ruler 437 from being easily separated from the slot, the cross-sectional shape of the slot is trapezoidal.
[0058] like Figure 2 and Figure 3 As shown, the pressure strip includes a first pressure strip 21 and a second pressure strip 22 sequentially arranged along the longitudinal direction of the base 10, the first pressure strip 21 is connected to the base 10 through a first fastener 23, and the second pressure strip 22 is connected to the base 10 through a second fastener 24. By arranging the first pressure strip 21 and the second pressure strip 22 to cooperate with each other to press the key, the force on the key can be more balanced, and the key warping caused by uneven force can be avoided. In addition, the key whose handle and key body are inconsistent in height can be clamped, and the universality is better.
[0059] Preferably, in order to facilitate passing the key between the pressure strip and the base 10 , a spring 25 is sleeved on the first fastener 23 and the second fastener, one end of the spring 25 abuts against the first pressure strip 21 or the second pressure strip 22 , and the other end abuts against the base 10 .
[0060] Furthermore, the clamping mechanism 20 further includes a balance adjustment member 26 threadedly connected to the base 10, and the balance adjustment member 26 penetrates from the bottom of the base 10 and extends toward the first pressure strip 21. By providing the balance adjustment member 26, the depth of screwing into the base 10 can be adjusted to ensure that the bottom of the key body and the support rib 11 remain in contact, thereby ensuring the accuracy of key duplication.
[0061] Preferably, in order to prevent the balancing adjustment member 26 from crushing the key, the clamping mechanism 20 also includes a balancing pad 27, and a through hole is provided on the balancing pad 27 for the first fastener 23 to pass through. The balancing pad 27 is arranged on the top of the base 10, and the two ends of the spring 25 are respectively abutted against the balancing pad 27 and the first pressure strip 21. When clamping the key, the key passes between the balancing pad 27 and the first pressure strip 21.
[0062] Preferably, an escape groove 14 is provided at one end of the support rib 11 close to the pressure strip, and a pad 15 for filling the escape groove 14 is movably provided on the base 10. By providing the escape groove 14, a key with a height difference between the key body and the handle can be clamped to ensure that the bottom of the key body is kept in contact with the support rib 11, and the pad 15 can fill the escape groove 14 when clamping a flat key, so as to prevent the key body from tilting up and failing to fit with the support rib 11 when clamping the key.
[0063] Furthermore, in order to facilitate the positioning of the cushion block 15 , a through hole for the second fastener 24 to pass through is opened on the cushion block 15 , and two ends of a spring 25 sleeved on the surface of the second fastener 24 abut against the cushion block 15 and the second pressure strip 22 respectively.
[0064] like Figure 6 As shown in the figure, there are three common types of Class C keys currently on the market, among which the first type of keys (corresponding to a in the figure) are provided with positioning notches on one side or both sides of the key body, and the positioning notches and the sides of the key body are used as positioning references when making the keys; the second type of keys (corresponding to b in the figure) are provided with positioning pits arranged along the length direction on the key body, and the positioning pits and the tail of the key body are used as positioning references when making the keys; the third type of keys (corresponding to c in the figure) are provided with positioning pits and positioning notches on the key body, and the positioning holes and positioning notches are used as positioning references when making the keys.
[0065] In one embodiment, if Figure 2 As shown, the base 10 is also provided with a forward stop positioning surface 16 and a positioning rib 17. The forward stop positioning surface 16 is arranged at one end of the base 10 close to the pressure strip, and the positioning rib 17 is arranged at the bottom of the base 10, and the positioning rib 17 is arranged parallel to the supporting rib 11. The forward stop positioning surface 16 and the positioning rib 17 are used to position the base 10 when installed on the key duplicating machine to improve the positioning accuracy of the base 10 installed on the key duplicating machine.
[0066] The following uses three types of Class C keys commonly found on the market as examples to illustrate the use principle of the key duplication fixture 100 of the present application:
[0067] like Figure 7As shown, when the key to be copied is the first type of key mentioned above, and the milled part is the front and back of the key body, the card plate 30 is firstly engaged with one of the positioning grooves 12, and then the first ruler 41 is placed in the slide groove 13, so that one end of the first slider 411 is in contact with the side of the card plate 30, and then the original key is inserted between the first pressure strip 21 and the base 10, so that the end angle of the first positioning block 412 is in contact with the positioning notch of the key body, and the side of the key body is in contact with the side of the first positioning block 412 close to the support rib 11, and then the original key is inserted between the first pressure strip 21 and the base 10, and ... After the original key is locked on the base 10 by the cooperation of the balance adjusting member 26 and the pressure strip, observe whether the bottom of the key is close to the supporting rib 11. If not, adjust the balance adjusting member 26 to make the bottom of the key close to the supporting rib 11 to complete the accurate positioning, remove the first ruler 41 and the card plate 30, and then insert the card plate 30 into the same positioning groove 12 on the other base 10, repeat the above action to lock the key blank to be copied on the other base 10, remove the card plate 30 and the first ruler 41, and install the two bases 10 on the key duplicating machine respectively for key duplication.
[0068] When the key to be copied is the first type of key mentioned above, and the milled part is the front, back and edge of the key body, firstly, the card plate 30 is clamped with one of the positioning grooves 12, and then the second ruler 42 is placed in the slide groove 13, so that one end of the second slider 421 is in contact with the side of the card plate 30, and then the original key is inserted between the first pressure strip 21 and the base 10, so that the end angle of the second positioning block 422 is in contact with the positioning notch of the key body, and the side of the key body is in contact with the side of the second positioning block 422 close to the support rib 11, and then the original key is inserted between the first pressure strip 21 and the base 10 ... After the parts cooperate with the pressure strip to lock the original key on the base 10, observe whether the bottom of the key is close to the supporting rib 11. If not, adjust the balance adjustment part 26 to make the bottom of the key close to the supporting rib 11 to complete the accurate positioning, remove the second ruler 42 and the card plate 30, and then insert the card plate 30 into the same positioning groove 12 on the other base 10, repeat the above actions to lock the key blank to be copied on the other base 10, remove the card plate 30 and the second ruler 42, and install the two bases 10 on the key duplicating machine for key duplication.
[0069] like Figure 8As shown, when it is necessary to copy the second type of key, the slide 431 is sleeved on the surface of the base 10 and slid to a suitable position, and then the card plate 30 is inserted into one of the positioning grooves 12, so that the side of the slide 431 abuts against the side of the card plate 30, and then the first locking member 432 is locked, and then the length and height of the transverse positioning ruler 433 extending into the guide groove are adjusted and the second locking member 435 is locked, and then the original key is inserted into the base 10 between the first pressure strip 21 and the balance pad 27, so that the tail of the key body abuts against the card plate 30, and the positioning pit on the key body is engaged with the positioning hook 434 on the transverse positioning ruler 433, and then the original key is inserted into the base 10 between the first pressure strip 21 and the balance pad 27, so that the tail of the key body abuts against the card plate 30, and the positioning pit on the key body is engaged with the positioning hook 434 on the transverse positioning ruler 433, and then the key is tightened. Tighten the first fastener 23 and the second fastener 24 to lock the original key, and observe whether the bottom of the key is close to the support rib 11. If not, adjust the balance adjustment member 26 to make the bottom of the key close to the support rib 11 to complete accurate positioning, then remove the card plate 30 and the sliding positioning member 43, install the card plate 30 and the sliding positioning member 43 on another base 10, and then insert the card plate 30 into the same positioning groove 12 on the other base 10, repeat the above actions to lock the key blank to be copied on the other base 10, remove the card plate 30 and the sliding positioning member 43, and install the two bases 10 on the key duplicating machine respectively for key duplication.
[0070] like Fig. 9 As shown, when the second type of key needs to be copied, the slide 431 is first sleeved on the base 10, and then the card plate 30 is inserted into one of the positioning grooves 12, and the side of the slide 431 close to the card plate 30 is abutted against the card plate 30 and the first locking member 432 is locked, and then the card plate 30 is pulled out, and then the original key is inserted into the base 10, and the length and height of the horizontal positioning ruler 433 extending into the guide groove are adjusted, and then the second locking member 435 is locked, so that the positioning hook 434 is inserted into the positioning pit on the key body, and then the longitudinal positioning ruler 433 is inserted into the positioning pit. 37 is pushed into the guide groove so that the end of the longitudinal positioning ruler 437 abuts against the positioning notch of the key body, and the first fastener 23 and the second fastener are tightened to lock the original key. Observe whether the bottom of the key is close to the supporting rib 11. If not, adjust the balance adjustment member 26 to make the bottom of the key close to the supporting rib 11 to complete the accurate positioning, then remove the sliding positioning member 43, repeat the above actions to lock the key blank to be copied on the other base 10, and then install the two bases 10 on the key duplicating machine for key duplication.
[0071] After years of trials and improvements, the key duplication fixture 100 of the present application can basically clamp most of the complex keys of the C-class type on the market, and it can be used with a wide range of adaptability. In addition, there is no need to modify or transform the existing vertical key duplication machines on the market. The key duplication fixture 100 can be placed on the original machine fixture and tightened for use. It is easy to load and unload, and has strong adaptability and is equipment-friendly. The installation of the key duplication fixture 100 of the present application is equivalent to upgrading the original vertical key duplication machine, which expands the scope of key duplication business and is relatively simple. After the vertical key duplication machine equipped with the key duplication fixture 100 of the present application is clamped with the original key and the key blank to be copied, the key can be processed on one side successfully and accurately. The key duplication fixture 100 of the present application is a fixture that concentrates on the essentials of key duplication and is precisely processed according to the mechanical principle structure. It solves the user's concerns about various precision requirements and the cumbersome insertion of various gaskets. It is easy to operate and operator-friendly.
[0072] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A key duplication fixture, comprising a base (10), a clamping mechanism (20) and a clamping plate (30), characterized in that: There are two bases (10), and each base (10) corresponds to a group of clamping mechanisms (20). A support rib (11) is protruded longitudinally on one side of the base (10). Each group of the clamping mechanisms (20) includes a pressure strip arranged at one end of the base (10). The pressure strip and the support rib (11) are located on the same side. The pressure strip is connected to the base (10) through a fastener. The card plate (30) is clamped with the base (10). A plurality of positioning grooves (12) cooperating with the card plate (30) are arranged at intervals longitudinally on the base (10). The base (10) also includes a longitudinal and transverse positioning mechanism (40) detachably connected to the base (10). The longitudinal and transverse positioning mechanism (40), the card plate (30) and the positioning groove (12) cooperate to position the key.
2. The key duplication fixture according to claim 1, characterized in that: The longitudinal and transverse positioning mechanism (40) comprises a first ruler (41), the first ruler (41) comprising a first slider (411) slidably connected to the base (10) and a first positioning block (412) arranged on the top of the first slider (411), the base (10) is provided with a sliding groove (13) slidably matched with the first slider (411) on the side of the support rib (11) along the longitudinal direction, and the first positioning block (412) is provided with a clearance groove (413) on the side close to the support rib (11).
3. The key duplication fixture according to claim 1, characterized in that: The longitudinal and transverse positioning mechanism (40) further comprises a second ruler (42), the second ruler (42) comprising a second slider (421) slidably connected to the base (10) and a second positioning block (422) arranged on the top of the second slider (421), the base (10) is provided with a sliding groove (13) slidably matched with the second slider (421) on the side of the support rib (11) along the longitudinal direction, and the second slider (421) is protruded on the side of the second positioning block (422) close to the support rib (11).
4. The key duplication fixture according to claim 1, characterized in that: The longitudinal and transverse positioning mechanism (40) also includes a sliding positioning member (43), the sliding positioning member (43) includes a slide seat (431) that is slidably matched with the base (10) and a transverse positioning ruler (433) installed on the slide seat (431), the slide seat (431) is provided with a guide groove that is slidably matched with the base (10), one side of the slide seat (431) is threadedly connected with a first locking member (432), the first locking member (432) is inserted into the guide groove from one side of the slide seat (431), one end of the transverse positioning ruler (433) is connected to the slide seat (431), and the other end extends into the guide groove, and the end of the transverse positioning ruler (433) that extends into the guide groove is provided with a positioning hook (434).
5. The key duplication fixture according to claim 4, characterized in that: The transverse positioning ruler (433) is connected to the slide seat (431) via a second locking member (435); the slide seat (431) is provided with a limiting groove for slidingly cooperating with the transverse positioning ruler (433); the transverse positioning ruler (433) is provided with a long hole, the long hole extending in a direction perpendicular to the longitudinal direction of the base (10); the second locking member (435) penetrates the long hole and is threadedly connected to the slide seat (431).
6. The key duplication fixture according to claim 5, characterized in that: The sliding positioning member (43) also includes a height adjustment member (436) threadedly connected to the sliding seat (431), the limiting groove is arranged at the top of the sliding seat (431), the height adjustment member (436) extends from the bottom of the sliding seat (431) into the bottom of the limiting groove, and the second locking member (435) is penetrated by a long hole and threadedly connected to the height adjustment member (436).
7. The key duplication fixture according to claim 4, characterized in that: The sliding positioning member (43) further comprises a longitudinal positioning ruler (437) which is slidably matched with the sliding seat (431); a slot which is matched with the longitudinal positioning ruler (437) is provided on the side of the sliding seat (431); the slot is provided perpendicular to the supporting rib (11); and the longitudinal positioning ruler (437) slides along the slot and extends from the side of the base (10) into the guide groove.
8. The key duplication fixture according to claim 1, characterized in that: The pressure strip comprises a first pressure strip (21) and a second pressure strip (22) which are arranged in sequence along the longitudinal direction of the base (10); the first pressure strip (21) is connected to the base (10) via a first fastener (23); and the second pressure strip (22) is connected to the base (10) via a second fastener (24).
9. The key duplication fixture according to claim 8, characterized in that: The clamping mechanism (20) further comprises a balance adjustment member (26) threadedly connected to the base (10), wherein the balance adjustment member (26) penetrates from the bottom of the base (10) and extends toward the first pressure strip (21).
10. The key duplication jig according to claim 1, characterized in that: An escape groove (14) is provided at one end of the support rib (11) close to the pressure strip, and a cushion block (15) for filling the escape groove (14) is movably provided on the base (10).