Transmission device of lock cylinder machining cutter

Abstract

The utility model discloses a transmission device of a lock cylinder machining cutter. Comprising a shell, transmission sleeves rotationally installed at one end of the shell, an adjusting sleeve arranged in the shell in a sliding mode in the axial direction, a cutter installation pipe rotationally installed in the adjusting sleeve and axially and synchronously moving, and a linkage rod used for enabling the transmission sleeves to form circumferential linkage connection. The driving element is used for driving the cutter mounting pipe to move axially; and the limiting and adjusting assembly is arranged on the shell and is used for limiting the extending stroke of the adjusting sleeve. According to the utility model, the stroke of the cutter can be accurately adjusted, the adjusting structure is simple, the operation is very convenient, and the processing production of the lock cylinder shell is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of lock processing equipment technology, and in particular to a transmission device for a lock cylinder processing tool. Background Technology

[0002] The lock cylinder is the core component of a lock, responsible for controlling its opening. It employs multiple anti-theft technologies, including various irregularly shaped anti-picking pins and a precision numbered pin structure, providing high security against technical unlocking. The lock cylinder, through its multiple combinations of irregularly shaped pins, can program billions of key combinations, achieving zero cross-keying within a given area. Furthermore, the lock cylinder incorporates a lateral inward-pressing side pin locking device, enhancing its ability to prevent forced twisting.

[0003] The machining process for a lock cylinder typically includes drilling, chamfering, tapping, corner setting, and grinding. During drilling, chamfering, or tapping, different cutting heads are mounted on a transmission mechanism. This mechanism is driven by a motor, and to increase torque, gear or belt drives can be used between the transmission mechanism and the motor. Because different lock cylinders have different specifications, the drilling or tapping depths vary. Currently, the traditional method of adjustment involves manually changing the overall mounting position of the transmission mechanism to adjust the tool stroke, which is very cumbersome. Utility Model Content

[0004] The purpose of this utility model is to provide a transmission device for lock cylinder machining tools. This utility model can achieve precise adjustment of the tool stroke, and the adjustment structure is simple and easy to operate, which is beneficial to the machining and production of lock cylinder shells.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transmission device for a lock core machining tool, comprising a housing, a transmission sleeve rotatably mounted on one end of the housing, an adjusting sleeve slidably disposed within the housing along the axial direction, a tool mounting tube rotatably mounted within the adjusting sleeve and moving synchronously in the axial direction, a linkage rod for forming a circumferential linkage connection between the transmission sleeve and the transmission sleeve, a driving element for driving the tool mounting tube to move axially, and a limit adjustment component disposed on the housing for limiting the extension stroke of the adjusting sleeve.

[0006] By adopting the above technical solution, the transmission sleeve is connected to the motor through a belt drive assembly or gear rotation assembly, and the tool mounting tube is connected to the tool through a quick-release chuck. When the tool stroke needs to be adjusted, only the position of the limit adjustment assembly needs to be adjusted. When the drive element drives the tool mounting tube to feed the tool, the limit adjustment assembly limits the tool's extreme position. There is no need to adjust the position of the transmission device. The adjustment structure is simple, the operation is more convenient, and it is beneficial to the processing and production of the lock core housing.

[0007] The present invention is further configured such that a guide hole is provided at the upper end of the outer shell, the extension direction of the guide hole is parallel to the sliding direction of the adjusting sleeve, and a connecting block is provided at the upper end of the adjusting sleeve. The connecting block is connected to the output end of the driving element, so that the driving element drives the connecting block to reciprocate.

[0008] By adopting the above technical solution, the connecting block is driven by the driving element to reciprocate, thereby adjusting the sleeve to reciprocate axially, and finally realizing the axial reciprocating motion of the tool mounting tube, and the motion process is stable and reliable.

[0009] The present invention is further configured such that the upper end of the adjusting sleeve is provided with a positioning groove, and the lower end of the connecting block is embedded in the positioning groove and connected to the adjusting sleeve by screws.

[0010] By adopting the above technical solution, the connecting block can be firmly and stably installed on the adjusting sleeve, thereby improving the reliability of its connection structure.

[0011] The present invention is further configured such that the extended end of the driving element is connected to a pressure block with a U-shaped structure, and the upper end of the connecting block is sandwiched between the extended end of the driving element and the pressure block.

[0012] By adopting the above technical solution, the effect of the extended end of the drive element driving the connecting block to reciprocate can be achieved.

[0013] The present invention is further configured such that the limit adjustment component includes a limit seat and a limit screw. The limit seat is installed on the outer shell and has a screw hole. The limit screw is threadedly engaged with the screw hole. When the limit screw is rotated, the limit screw moves toward or away from the connecting block.

[0014] By adopting the above technical solution, the axial position of the connecting block can be changed by rotating the limiting screw, thereby limiting the extension stroke of the connecting block and controlling the feed depth of the tool. The adjustment operation is very convenient.

[0015] The present invention is further configured such that a preload nut is threadedly connected to the limiting screw, and the preload nut abuts against the side of the limiting seat.

[0016] By adopting the above technical solution and tightening the preload nut, the thread friction between the limit screw and the screw hole can be increased, thereby making the limit screw less likely to loosen and ensuring that it always stays in one position, making its limit adjustment more accurate and reliable.

[0017] The present invention is further configured such that the driving element is a telescopic cylinder or a telescopic motor.

[0018] By adopting the above technical solutions, the telescopic cylinder, as a driving element, has the advantages of simple structure, low cost, and high-speed response and movement; the telescopic motor, as a driving element, has the advantages of high control precision and strong load capacity.

[0019] The present invention is further configured such that a first bearing is sandwiched between the transmission sleeve and the outer shell, and the outer circular surface of the transmission sleeve is interference-fitted with the inner ring of the first bearing, and the inner circular surface of the outer shell is interference-fitted with the outer ring of the first bearing.

[0020] By adopting the above technical solution, the rotational engagement between the transmission sleeve and the outer shell can be achieved, with low friction and low energy consumption.

[0021] The present invention is further configured such that a second bearing is respectively clamped between the two ends of the adjusting sleeve and the tool mounting tube, and the outer circular surface of the tool mounting tube is interference-fitted with the inner ring of the second bearing, and the inner circular surface of the outer shell is interference-fitted with the outer ring of the second bearing.

[0022] By adopting the above technical solution, the rotational fit between the tool mounting tube and the outer shell can be achieved, with low friction and low energy consumption.

[0023] The present invention is further configured such that the outer circumference of the linkage rod has a plurality of linkage teeth arranged in a circular array, the inner circumference of the transmission sleeve has a plurality of first linkage grooves arranged in a circular array to cooperate with the linkage teeth, and the inner circumference of the tool mounting tube has a plurality of second linkage grooves arranged in a circular array to cooperate with the linkage teeth.

[0024] By adopting the above technical solution, circumferential linkage between the transmission sleeve and the tool mounting tube can be achieved through the linkage rod, which has good transmission efficiency, is not easy to slip, and has good stability. Attached Figure Description

[0025] Figure 1 This is a perspective view of the entire utility model;

[0026] Figure 2 This is a cross-sectional view of the entire utility model.

[0027] In the diagram: 1. Outer shell; 2. Transmission sleeve; 3. Adjusting sleeve; 4. Tool mounting tube; 5. Linkage rod; 6. Drive element; 7. Limit adjustment assembly; 8. Guide hole; 9. Connecting block; 10. Positioning groove; 11. Limit seat; 12. Limit screw; 13. Screw hole; 14. Preload nut; 15. First bearing; 16. Second bearing; 17. Linkage gear; 18. First linkage groove; 19. Second linkage groove; 20. Pressure block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: As attached Figure 1 and attached Figure 2 The transmission device for a lock cylinder machining tool, as shown, includes a housing 1, a transmission sleeve 2 rotatably mounted on one end of the housing 1, an adjusting sleeve 3 axially slidably disposed within the housing 1, a tool mounting tube 4 rotatably mounted within the adjusting sleeve 3 and moving synchronously axially, a linkage rod 5 for forming a circumferential linkage between the transmission sleeve 2 and the transmission sleeve 3, a driving element 6 for driving the axial movement of the tool mounting tube 4, and a limit adjustment assembly 7 disposed on the housing 1 for limiting the extension stroke of the adjusting sleeve 3. The transmission sleeve 2 is connected to a motor via a belt drive assembly or a gear drive assembly. In this embodiment, a keyway is provided on the transmission sleeve 2 for key connection with a pulley. The tool mounting tube 4 is connected to a tool via a quick-release chuck. The tool can be a drill bit or a tapping bit. When the tool stroke needs to be adjusted, only the position of the limit adjustment assembly 7 needs to be adjusted. When the driving element 6 drives the tool mounting tube 4 to feed the tool, the limit adjustment assembly 7 limits the extreme position of the tool. There is no need to adjust the position of the transmission device. The adjustment structure is simple, the operation is more convenient, and it is beneficial to the machining and production of lock cylinder housings.

[0030] As attached Figure 1 and attached Figure 2 As shown, a guide hole 8 is provided at the upper end of the outer shell 1. The extending direction of the guide hole 8 is parallel to the sliding direction of the adjusting sleeve 3. A connecting block 9 is provided at the upper end of the adjusting sleeve 3. The width of the connecting block 9 is approximately the same as the width of the guide hole 8. The connecting block 9 extends through the guide hole 8 to the outside of the outer shell 1 and is connected to the output end of the driving element 6, so that the driving element 6 drives the connecting block 9 to reciprocate. The reciprocating motion of the connecting block 9 driven by the driving element 6 stabilizes the axial reciprocating motion of the adjusting sleeve 3, ultimately realizing the axial reciprocating motion of the tool mounting tube 4, and the motion process is stable and reliable.

[0031] As attached Figure 2 As shown, the upper end of the adjusting sleeve 3 is provided with a positioning groove 10, and the lower end of the connecting block 9 is embedded in the positioning groove 10 and connected to the adjusting sleeve 3 by screws. The shape of the part of the connecting block 9 embedded in the positioning groove 10 is similar to the shape of the positioning groove 10. This design enables the connecting block 9 to be firmly and stably installed on the adjusting sleeve 3, improving the reliability of its connection structure.

[0032] As attached Figure 1As shown, the extended end of the driving element 6 is connected to a U-shaped pressure block 20. The upper end of the connecting block 9 is sandwiched between the extended end of the driving element 6 and the pressure block 20. In this embodiment, the extended end of the driving element 6 and the pressure block form a U-shape, and the upper end of the connecting block 9 is inserted in the middle of the U-shaped structure. This design enables the extended end of the driving element 6 to drive the connecting block 9 to reciprocate.

[0033] As attached Figure 1 and attached Figure 2 As shown, the limit adjustment assembly 7 includes a limit seat 11 and a limit screw 12. The limit seat 11 is mounted on the housing 1 by screws. The limit seat 11 has a screw hole 13, and the limit screw 12 is threaded into the screw hole 13. When the limit screw 12 is rotated, it moves towards or away from the connecting block 9. By rotating the limit screw 12, its axial position is changed, thus limiting the extension stroke of the connecting block 9 and controlling the feed depth of the tool. The adjustment operation is very convenient.

[0034] As attached Figure 1 and attached Figure 2 As shown, a preload nut 14 is also threaded onto the limiting screw 12, and the preload nut 14 abuts against the side of the limiting seat 11. Tightening the preload nut 14 increases the thread friction between the limiting screw 12 and the screw hole 13, thereby making the limiting screw 12 less prone to loosening and ensuring that it always stays in one position, making its limiting adjustment more precise and reliable.

[0035] The driving element 6 is either a telescopic cylinder or a telescopic motor. A telescopic cylinder, as the driving element 6, has the advantages of simple structure, low cost, and high-speed response and movement; a telescopic motor, as the driving element 6, has the advantages of high control precision and strong load capacity.

[0036] As attached Figure 2 As shown, a first bearing 15 is sandwiched between the transmission sleeve 2 and the outer shell 1. The outer circular surface of the transmission sleeve 2 is interference-fitted with the inner ring of the first bearing 15, and the inner circular surface of the outer shell 1 is interference-fitted with the outer ring of the first bearing 15. A step can be provided at the end of the outer shell 1, and a retaining spring can be used to position the first bearing 15 on this step. This design allows for rotational engagement between the transmission sleeve 2 and the outer shell 1 with low friction and low energy consumption.

[0037] As attached Figure 2As shown, a second bearing 16 is respectively clamped between both ends of the adjusting sleeve 3 and the tool mounting tube 4. The outer circular surface of the tool mounting tube 4 is interference-fitted with the inner ring of the second bearing 16, and the inner circular surface of the outer shell 1 is interference-fitted with the outer ring of the second bearing 16. The installation method of the second bearing 16 can be the same as that of the first bearing 15. This design enables rotational engagement between the tool mounting tube 4 and the outer shell 1 with low friction and low energy consumption.

[0038] As attached Figure 1 and attached Figure 2 As shown, the linkage rod 5 has multiple linkage teeth 17 arranged in a circular array on its outer circumference, the transmission sleeve 2 has multiple first linkage grooves 18 arranged in a circular array on its inner circumference to mate with the linkage teeth 17, and the tool mounting tube 4 has multiple second linkage grooves 19 arranged in a circular array on its inner circumference to mate with the linkage teeth 17. Through the linkage rod 5, circumferential linkage between the transmission sleeve 2 and the tool mounting tube 4 can be achieved, with good transmission efficiency, low slippage, and good stability.

Claims

1. A transmission device for a lock core machining tool, characterized in that: It includes a housing (1), a transmission sleeve (2) rotatably mounted on one end of the housing (1), an adjusting sleeve (3) slidably disposed in the housing (1) along the axial direction, a tool mounting tube (4) rotatably mounted in the adjusting sleeve (3) and moving synchronously in the axial direction, a linkage rod (5) for forming a circumferential linkage connection between the transmission sleeve (2) and the transmission sleeve (2), a driving element (6) for driving the tool mounting tube (4) to move axially, and a limit adjustment assembly (7) disposed on the housing (1) for limiting the extension stroke of the adjusting sleeve (3).

2. The transmission device for a lock core machining tool according to claim 1, characterized in that: The upper end of the outer shell (1) is provided with a guide hole (8), the extension direction of the guide hole (8) is parallel to the sliding direction of the adjusting sleeve (3), and the upper end of the adjusting sleeve (3) is provided with a connecting block (9), the connecting block (9) is connected to the output end of the driving element (6), so that the driving element (6) drives the connecting block (9) to reciprocate.

3. The transmission device for a lock core machining tool according to claim 2, characterized in that: The upper end of the adjusting sleeve (3) is provided with a positioning groove (10), and the lower end of the connecting block (9) is embedded in the positioning groove (10) and connected to the adjusting sleeve (3) by screws.

4. The transmission device for a lock core machining tool according to claim 2, characterized in that: The extended end of the driving element (6) is connected to a pressure block (20) with a U-shaped structure, and the upper end of the connecting block (9) is sandwiched between the extended end of the driving element (6) and the pressure block (20).

5. The transmission device for a lock core machining tool according to claim 2, characterized in that: The limit adjustment assembly (7) includes a limit seat (11) and a limit screw (12). The limit seat (11) is installed on the outer shell (1). The limit seat (11) has a screw hole (13). The limit screw (12) is threadedly engaged with the screw hole (13). When the limit screw (12) is rotated, the limit screw (12) moves toward or away from the connecting block (9).

6. The transmission device for a lock core machining tool according to claim 5, characterized in that: The limiting screw (12) is also threaded with a preload nut (14), which abuts against the side of the limiting seat (11).

7. The transmission device for a lock core machining tool according to claim 1, characterized in that: The driving element (6) is a telescopic cylinder or a telescopic motor.

8. The transmission device for a lock core machining tool according to claim 1, characterized in that: A first bearing (15) is sandwiched between the transmission sleeve (2) and the outer shell (1), and the outer circular surface of the transmission sleeve (2) is interference-fitted with the inner ring of the first bearing (15), and the inner circular surface of the outer shell (1) is interference-fitted with the outer ring of the first bearing (15).

9. The transmission device for a lock core machining tool according to claim 1, characterized in that: A second bearing (16) is respectively sandwiched between the two ends of the adjusting sleeve (3) and the tool mounting tube (4), and the outer circle of the tool mounting tube (4) is interference-fitted with the inner ring of the second bearing (16), and the inner circle of the outer shell (1) is interference-fitted with the outer ring of the second bearing (16).

10. The transmission device for a lock core machining tool according to claim 1, characterized in that: The linkage rod (5) has multiple linkage teeth (17) arranged in a circular array on its outer periphery, the transmission sleeve (2) has multiple first linkage grooves (18) arranged in a circular array on its inner periphery that cooperate with the linkage teeth (17), and the tool mounting tube (4) has multiple second linkage grooves (19) arranged in a circular array on its inner periphery that cooperate with the linkage teeth (17).

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