Tool changing device for circuit board splitting machine

Abstract

The utility model relates to the technical field of circuit board dividing and cutting machines, and discloses a tool changing device for a circuit board dividing and cutting machine, which comprises a base, a supporting rod is arranged on the base in a sliding manner, and an auxiliary ring body is fixedly arranged on the top surface of the supporting rod; a limiting assembly is arranged on the auxiliary ring body and comprises a clamping block, a threaded short rod, a connecting ring, a first connecting rod, an auxiliary block, a second connecting rod and a first annular gear. According to the tool changing device for the circuit board splitting machine, the supporting rod fixed with the auxiliary ring body is arranged on the base, then the limiting assembly is arranged on the auxiliary ring body, and a circular-ring-shaped blade on the machine body is clamped through components contained in the limiting assembly, so that a user is prevented from clamping the blade with hands, and the safety of the whole tool changing process is guaranteed; and meanwhile, the clamping range of the limiting assembly can be adjusted according to the circular-ring-shaped blades of different sizes, the practicability of the whole structure is improved, and actual use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board slitting machines, in particular to a knife changing device for circuit board slitting machines. Background Art

[0002] Circuit board slitting machine is a fully automated production equipment specially used for cutting, splitting and slitting various PCB circuit boards, LED light strips, various circuit boards and linear circuit boards in the electronics production industry.

[0003] The cutting knives of circuit board slitting machines are mostly circular, and the circular blades are very sharp. Therefore, when changing the blade, the user needs to clamp the blade body of the circular blade and then remove the bolts connecting the blade to the machine body. The surface of the blade is very smooth, and the user can easily slip and damage the blade by just clamping it with his hands. At the same time, there are safety hazards in clamping it with hands, which is not conducive to actual use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a knife changing device for a circuit board slitting machine, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a tool changing device for a circuit board slitting machine, comprising: a base, a support rod is slidably arranged on the base, an auxiliary ring body is fixedly arranged on the top surface of the support rod; a limiting assembly is arranged on the auxiliary ring body, and the limiting assembly includes a clamping block, a short threaded rod, a connecting ring, a first connecting rod, an auxiliary block, a second connecting rod, a first ring gear, a first transmission gear, an end gear, a fixing rod, a rubber pad and a reset spring; an adjusting assembly is arranged on the base, and the adjusting assembly includes a second ring gear, a second transmission gear, a long threaded rod and a pulley group.

[0006] Preferably, the clamping block is slidably arranged on the auxiliary ring body, the threaded short rod is rotatably arranged on the auxiliary ring body and is threadedly connected to the clamping block, the connecting ring is fixedly installed on the end face of the second connecting rod, the first connecting rod is fixedly installed on the connecting ring, the auxiliary block is fixedly installed on the end face of the fixed rod, the second connecting rod is fixedly installed on the side face of the first ring gear, the first ring gear and the first transmission gear are both rotatably arranged inside the auxiliary ring body, and the first ring gear is also meshed with the first transmission gear, the end face gear is fixedly installed on the end face of the threaded short rod and meshed with the first transmission gear, the fixed rod is slidably arranged on the first connecting rod, the rubber pad is fixedly installed on the side face of the clamping block, and the two ends of the reset spring are respectively fixedly connected to the fixed rod and the first connecting rod.

[0007] Preferably, the second ring gear and the second transmission gear are both rotatably set on the base, and the second ring gear is also meshed with the second transmission gear, the threaded long rod is also rotatably set on the base and meshed with the support rod, the pulley group is movably set inside the base, and the threaded long rod is transmission connected to the second ring gear through the pulley group.

[0008] Preferably, the side surface of the auxiliary block adjacent to the auxiliary ring body is an arc-shaped surface, and the arc-shaped surface is provided with friction patterns for enhancing friction and cooperating with the auxiliary ring body.

[0009] Preferably, the rubber pad is in contact with a circular blade of a circuit board slitting machine.

[0010] Preferably, a cavity for accommodating the long threaded rod is opened inside the support rod, and the shape of the cavity is a convex shape.

[0011] Preferably, a limit block is provided on the end of the threaded long rod located inside the support rod.

[0012] Preferably, a handle is provided on the upper surface of the second ring gear, and an anti-slip feature is provided on the handle.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The knife changing device for the circuit board slitting machine sets a support rod fixing an auxiliary ring body on a base, and then sets a limit assembly on the auxiliary ring body. The circular blade on the machine body is clamped by the parts contained in the limit assembly, thereby eliminating the need for users to clamp the blade with their hands, ensuring the safety of the entire knife changing process. At the same time, the limit assembly can adjust its clamping range according to circular blades of different sizes, thereby improving the practicality of the overall structure and facilitating actual use.

[0015] 2. The knife changing device for the circuit board slitting machine is used to adjust the height of the entire auxiliary ring body by setting an adjustment component, so that the entire device can be used for circuit board slitting machines of different models, further expanding the application range of the overall device, and the operation steps of the entire adjustment component are simple, and the user can complete the adjustment work in a more labor-saving way. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the auxiliary ring structure of the utility model;

[0019] Figure 4for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 It is a schematic cutaway diagram of the base structure of the utility model.

[0021] In the figure: 1. base; 2. support rod; 3. auxiliary ring body; 4. limit assembly; 41. clamping block; 42. threaded short rod; 43. connecting ring; 44. first connecting rod; 45. auxiliary block; 46. second connecting rod; 47. first ring gear; 48. first transmission gear; 49. end gear; 410. fixing rod; 411. rubber pad; 412. reset spring; 5. adjustment assembly; 51. second ring gear; 52. second transmission gear; 53. threaded long rod; 54. pulley set. 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 1-5 A tool changing device for a circuit board slitting machine comprises: a base 1, a support rod 2 is slidably arranged on the base 1, and an auxiliary ring body 3 is fixedly arranged on the top surface of the support rod 2.

[0024] A limit assembly 4 is provided on the auxiliary ring body 3, and the limit assembly 4 includes a clamping block 41, a short threaded rod 42, a connecting ring 43, a first connecting rod 44, an auxiliary block 45, a second connecting rod 46, a first ring gear 47, a first transmission gear 48, an end gear 49, a fixed rod 410, a rubber pad 411 and a reset spring 412; the clamping block 41 is slidably provided on the auxiliary ring body 3, the short threaded rod 42 is rotatably provided on the auxiliary ring body 3 and is threadedly connected with the clamping block 41, the connecting ring 43 is fixedly installed on the end face of the second connecting rod 46, the first connecting rod 44 is fixedly installed on the connecting ring 43, the auxiliary block 45 is fixedly installed on the end face of the fixed rod 410, and the side surface of the auxiliary block 45 adjacent to the auxiliary ring body 3 is an arc surface, and a friction member for enhancing friction and cooperating with the auxiliary ring body 3 is provided on the arc surface. The second connecting rod 46 is fixedly mounted on the side of the first ring gear 47. The first ring gear 47 and the first transmission gear 48 are both rotatably arranged inside the auxiliary ring body 3, and the first ring gear 47 is also meshed with the first transmission gear 48. The end gear 49 is fixedly mounted on the end face of the threaded short rod 42 and meshed with the first transmission gear 48. The fixed rod 410 is slidably arranged on the first connecting rod 44. The rubber pad 411 is fixedly mounted on the side of the clamping block 41. The rubber pad 411 contacts the annular blade of the circuit board slitting machine to increase the buffer and avoid damage caused by direct contact between the blade and the clamping block 41, thereby ensuring the sharpness of the blade during the tool changing process to meet the tool changing requirements. The two ends of the reset spring 412 are fixedly connected to the fixed rod 410 and the first connecting rod 44 respectively.

[0025] An adjusting assembly 5 is provided on the base 1, and the adjusting assembly 5 includes a second ring gear 51, a second transmission gear 52, a threaded long rod 53 and a pulley group 54. The second ring gear 51 and the second transmission gear 52 are both rotatably arranged on the base 1, and the second ring gear 51 is also meshed with the second transmission gear 52. A handle is provided on the upper surface of the second ring gear 51, and the handle is provided with anti-slip grooves to facilitate the actual operation of the user and improve the actual operation efficiency. The threaded long rod 53 is also rotatably arranged on the base 1 and meshed with the support rod 2. The pulley group 54 is movably arranged inside the base 1. The threaded long rod 53 is transmission-connected with the second ring gear 51 through the pulley group 54. A cavity for accommodating the threaded long rod 53 is opened inside the support rod 2, and the shape of the cavity is convex. A limiting block is provided on the end of the threaded long rod 53 located inside the support rod 2 to improve the stability of the connection relationship between the components in the overall structure, avoid the phenomenon of the support rod 2 being detached, and ensure the performance of the overall device.

[0026] Working principle: place the annular blade of the circuit board slitting machine that needs to be replaced on the side of the auxiliary ring body 3 where the clamping block 41 is provided, pull the auxiliary block 45 so that the auxiliary block 45 does not contact the auxiliary ring body 3, and the fixed rod 410 fixed on the auxiliary block 45 slides on the first connecting rod 44 fixed on the connecting ring 43, so that the connecting ring 43 can be driven to rotate through the auxiliary block 45, and the first ring gear 47 set inside the auxiliary ring body 3 is rotated to be fixedly connected to the connecting ring 43 through the second connecting rod 46, so that the first ring gear 47 rotates as the connecting ring 43 rotates, wherein the first ring gear 47 is meshed with the first transmission gear 48, and the first transmission gear 48 is meshed with the end gear 49 fixed on the threaded short rod 42, so as the auxiliary block 45 drives the connecting ring 43 to rotate, the threaded short rod 42 rotates synchronously on the auxiliary ring body 3, and because the clamping block 41 is slidably connected to the auxiliary ring body 3 and is threadedly connected to the threaded short rod 42 at the same time. Therefore, as the threaded short rod 42 rotates, the clamping block 41 will slide toward the circular blade, and multiple first transmission gears 48, end gears 49 and threaded short rods 42 and other structures are arranged inside the auxiliary ring body 3. Therefore, all the clamping blocks 41 on the auxiliary ring body 3 rotate with the first ring gear 47 and slide synchronously toward the circular blade, thereby clamping and limiting the position of the circular blade on the auxiliary ring body 3. After loosening the auxiliary block 45, under the action of the return spring 412 fixedly connected to the fixing rod 410 and the first connecting rod 44 at both ends, the auxiliary block 45 contacts the auxiliary ring body 3 again, and the friction pattern on the surface of the auxiliary block 45 cooperates with the auxiliary ring body 3. The friction force formed by the two limits the rotation of the connecting ring 43 and the first ring gear 47 and other structures, thereby locking the position of the clamping block 41. Because the auxiliary ring body 3 is also a ring structure, the bolt used to connect the circular blade and the circuit board slitting machine can be removed through the central cavity to complete the tool change.

[0027] When encountering different types of circuit board slitting machines, due to the inconsistent heights of the annular blade installation positions, when the height of the auxiliary ring body 3 needs to be adjusted, the support rod 2 fixed on the auxiliary ring body 3 is in a sliding connection with the base 1, and the threaded long rod 53 rotatably set on the base 1 is in a threaded connection with the support rod 2, and the threaded long rod 53 uses the pulley set 54 to form a transmission connection with the gear shaft of the second transmission gear 52. The second ring gear 51 is rotatably set on the base 1 and is also meshed with the second transmission gear 52. Therefore, after the second ring gear 51 is rotated, Under the transmission of the second transmission gear 52 and the pulley group 54 and other structures, the threaded long rod 53 is driven to rotate. As the threaded long rod 53 rotates, the support rod 2 will drive the auxiliary ring body 3 to slide up and down, thereby meeting different application scenarios. In the process of rotating the second ring gear 51, because the size of the second ring gear 51 is larger than the size of the second transmission gear 52, the rotation speed of the second transmission gear 52 is faster than that of the second ring gear 51, thereby accelerating the rotation speed of the threaded long rod 53, saving the time of the height adjustment step of the auxiliary ring body 3, and improving the efficiency of the overall device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A knife changing device for a circuit board slitting machine, characterized in that: include: A base (1), a support rod (2) being slidably arranged on the base (1), and an auxiliary ring body (3) being fixedly arranged on the top surface of the support rod (2); A limit assembly (4) is arranged on the auxiliary ring body (3), and the limit assembly (4) comprises a clamping block (41), a threaded short rod (42), a connecting ring (43), a first connecting rod (44), an auxiliary block (45), a second connecting rod (46), a first ring gear (47), a first transmission gear (48), an end gear (49), a fixing rod (410), a rubber pad (411) and a return spring (412); The base (1) is provided with an adjustment assembly (5), and the adjustment assembly (5) comprises a second ring gear (51), a second transmission gear (52), a threaded long rod (53) and a pulley group (54).

2. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: The clamping block (41) is slidably mounted on the auxiliary ring body (3); the threaded short rod (42) is rotatably mounted on the auxiliary ring body (3) and is threadedly connected to the clamping block (41); the connecting ring (43) is fixedly mounted on the end surface of the second connecting rod (46); the first connecting rod (44) is fixedly mounted on the connecting ring (43); the auxiliary block (45) is fixedly mounted on the end surface of the fixed rod (410); the second connecting rod (46) is fixedly mounted on the side surface of the first ring gear (47); the first ring gear (47) and the first The transmission gears (48) are all rotatably arranged inside the auxiliary ring body (3), and the first ring gear (47) is also meshed with the first transmission gear (48). The end face gear (49) is fixedly installed on the end face of the threaded short rod (42) and meshed with the first transmission gear (48). The fixed rod (410) is slidably arranged on the first connecting rod (44). The rubber pad (411) is fixedly installed on the side of the clamping block (41), and the two ends of the return spring (412) are respectively fixedly connected to the fixed rod (410) and the first connecting rod (44).

3. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: The second ring gear (51) and the second transmission gear (52) are both rotatably arranged on the base (1), and the second ring gear (51) is also meshed with the second transmission gear (52). The threaded long rod (53) is also rotatably arranged on the base (1) and meshed with the support rod (2). The pulley group (54) is movably arranged inside the base (1), and the threaded long rod (53) is transmission-connected to the second ring gear (51) via the pulley group (54).

4. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: The side surface of the auxiliary block (45) adjacent to the auxiliary ring body (3) is an arc-shaped surface, and the arc-shaped surface is provided with friction patterns for enhancing friction and cooperating with the auxiliary ring body (3).

5. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: The rubber pad (411) is in contact with the annular blade of the circuit board slitting machine.

6. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: The support rod (2) is provided with a cavity for accommodating the threaded long rod (53), and the cavity is in a convex shape.

7. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: A limit block is provided on the end of the threaded long rod (53) located inside the support rod (2).

8. A tool changing device for a circuit board slitting machine according to claim 1, characterized in that: A handle is provided on the upper surface of the second ring gear (51), and the handle is provided with anti-slip grooves.

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