Adjustable knife rest of cutting machine

Abstract

The utility model discloses an adjustable knife rest of a cutting machine. In order to solve the problems that a tool rest of existing cutting equipment is fixed, the installation precision of a tool bit is affected by errors of a connecting hole and a fastener, the parallelism error of a cutting edge and a workbench is caused, and the material cutting yield is reduced, a solution is provided. The adjustable knife rest comprises a mounting frame connected with a cutting equipment driving device, a pair of independent connecting frames are arranged on the mounting frame in a sliding mode, a stamping knife is fixed to the connecting frames, cutting edges are arranged below the stamping knife, and elastic elements are arranged between the connecting frames and the mounting frame. The elastic element can compensate the parallelism error of the blade and the working table, all points of the blade are ensured to make uniform contact with materials, and the yield is increased. Meanwhile, the pin shaft can be locked in the position of the limiting hole through the limiting structure, the height of the blade can be adjusted, fine adjustment of the height between the cutter and the working table is achieved, and different cutting depth requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting machine spare part technical field, especially a cutting machine adjustable tool rest. BACKGROUND

[0002] Electronic products in the production process, usually use cutting equipment to punch the material or electronic components, for example, for some PCB cutting, screen or processing cutting or insulating sheet and other electronic components production of auxiliary materials. Among them, the current cutting equipment, its tool rest is all used fixed tool rest, the cutter head after installation to the tool rest cannot carry out dynamic adjustment, so that the equipment in the punching process, the driving device on the tool rest whole driving control, will make the cutter head directly with the material rigid contact, complete the punching of the material.

[0003] But in the field of electronic products, because the precision requirement of electronic products for materials is higher, therefore need to ensure that the cutting equipment can accurately control the cutting depth of the material, and the existing punch and tool rest in the fixed installation process, due to the position error of the connecting hole on the tool rest and the size error of the fastener, usually affect the installation accuracy of the punch, so as to cause the parallelism error between the blade and the workbench, these parallelism errors will cause the uneven contact between the cutting surface of the cutter head and the material during the cutting process of the punch, cause the local area of the blade to cut too deep or too shallow, thereby reducing the yield of material cutting. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a cutting machine adjustable tool rest, which aims to improve the connection mode and structure between the tool rest and the mounting frame, so that the tool rest can compensate for the parallelism error between the blade and the workbench when driving the punch to cut, thereby improving the yield of material cutting.

[0005] To achieve the above purpose, the utility model provides a cutting machine adjustable tool rest, which comprises a mounting frame mounted on a cutting equipment and connected with a driving device, a pair of independently arranged connecting frames are slidably arranged on the mounting frame, a punch is arranged on the pair of connecting frames, and the blade of the punch is located below the connecting frame, and a pair of elastic elements are arranged between the pair of connecting frames and the mounting frame, the elastic element is used to drive the corresponding tool rest to drive the cutter head to apply force to the workbench surface of the cutting equipment.

[0006] In a possible implementation, the mounting frame comprises a pair of fixed pipes symmetrically arranged, a center passage is arranged in the fixed pipes, the connecting frame comprises a sliding section slidingly arranged in the center passage; and a limiting structure arranged between the connecting frame and the fixed pipes is configured to limit the movement range of the connecting frame in the center passage.

[0007] In a possible implementation, a limiting hole is arranged on the fixed pipe and in communication with the center passage, the limiting hole is arranged in a strip shape and parallel to the length direction of the fixed pipe; a connecting hole is arranged on the sliding section, a pin shaft is threadedly connected to the connecting hole, and one end of the pin shaft extends to the outside through the limiting hole.

[0008] In a possible implementation, the limiting structure comprises a connecting rod slidingly arranged between the pair of fixed pipes and horizontally arranged, limiting members corresponding to the positions of the pin shafts are arranged at the two ends of the connecting rod, and the limiting members are configured to limit the movement range of the pin shafts in the limiting holes.

[0009] In a possible implementation, the limiting members comprise a lower limiting plate and an upper limiting plate connected to the connecting rod, the upper limiting plate is detachably connected to the connecting rod, and a compensation space for the movement of the pin shaft is formed between the upper limiting plate and the lower limiting plate.

[0010] In a possible implementation, the limiting hole is inwardly recessed to form a limiting groove, and a limiting bolt threadedly connected to the connecting rod is arranged at the end of the connecting rod and can be clamped in the limiting groove.

[0011] In a possible implementation, one end of the pin shaft is rotationally connected to a bearing rolling in the limiting groove, and the bearing can abut between the upper limiting plate and the lower limiting plate.

[0012] In a possible implementation, the elastic element is an abutting spring, and the abutting spring is arranged in the center passage and abuts at one end to the end of the sliding section.

[0013] In summary, the beneficial effects of the present application are as follows:

[0014] Compared with the prior art, the present application can compensate for the parallelism deviation of the blade and the workbench surface in real time through the elastic element, such as the abutting spring, arranged between the connecting frame and the mounting frame, when the punch is tilted due to machining or assembly errors, the spring adjusts the blade pressure distribution through adaptive deformation, ensures that the blade points uniformly contact the material, effectively reduces the cutting depth error of the traditional fixed knife holder, and improves the local overcutting or non-cutting problem caused by the installation error of the traditional fixed knife holder.

[0015] Meanwhile, through the setting of the limiting structure, the position of the pin shaft in the limiting hole can be locked, during the installation or debugging process, the staff can adjust the initial height of the connecting frame in the center channel, so as to adjust the height of the blade, and the limiting structure can cooperate with the pin shaft, so that the knife holder can be dynamically limited in the limited height position range, and then the fine adjustment of the height of the cutter on the workbench of the cutting equipment is realized, so that the requirement of different cutting depths can be met. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0017] Figure 1 It is a schematic diagram of the assembly of the cutter holder and the cutting equipment of the present application.

[0018] Figure 2 It is a perspective view of the present application.

[0019] Figure 3 It is a partial assembly view of the connecting frame and the mounting frame of the present application.

[0020] Figure 4 It is an exploded view of the present application.

[0021] Figure 5 It is Figure 4 The enlarged view of A.

[0022] Explanation of reference numerals:

[0023] 100, cutting equipment; 200, driving device; 300, punch cutter; 1, mounting frame; 11, fixed tube; 2, connecting frame; 21, sliding section; 3, elastic element; 4, limiting structure; 41, connecting rod; 42, limiting piece; 421, upper limiting plate; 422, lower limiting plate; 423, compensation space; 5, limiting hole; 6, connecting hole; 7, pin shaft; 8, limiting groove; 9, limiting bolt; 10, bearing.

[0024] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0026] As Figures 1-5 shown, the utility model provides a cutting machine adjustable tool rest, including installation with cutting equipment 100 and with driving arrangement 200 connection's mounting bracket 1, a pair of independent settings connecting frame 2 are slidably arranged on mounting bracket 1, and punch 300 is fixedly arranged on a pair of connecting frame 2, and the cutting edge of punch 300 is below connecting frame 2, a pair of connecting frame 2 and mounting bracket 1 between are provided with elastic element 3, and elastic element 3 is used to drive and drive the tool rest with its corresponding cutter head one side to the workbench surface direction of cutting equipment 100 and exert force, wherein, the driving arrangement 200 provided on cutting equipment 100 is a pneumatic cylinder, and the pneumatic cylinder is connected with the top of mounting bracket 1, and is used to control the tool rest to ascend and descend.

[0027] Specifically, as Figure 2 shown, the tool rest includes a mounting bracket 1, which extends downwardly into two independent tubular structures. A pair of connecting frames 2 are also tubular and are slidably coupled to the two independent tubular structures. Punch 300 is fixed to the lower side of the connecting frames 2 by bolts, and the cutting edge is lower than the lowest point of the connecting frames 2. This design protrudes the cutting edge from the lowest structure surface of the connecting frames 2, concentrates the cutting force on the tip of the cutting edge, and avoids interference between the connecting frames 2 and the material. When the driving device 200 drives the connecting frames 2 to move downwardly, the cutting edge, as the first part to contact the material, can adaptively adjust the contact angle under the compensation of the elastic element 3, ensuring that the cutting surface is uniformly stressed. Since the cutting edge is below the lowest point of the connecting frames 2, its vertical stroke can be accurately controlled by the limiting structure 4, avoiding the phenomenon of insufficient cutting depth or overcutting caused by the structural height limitation of the connecting frames 2.

[0028] As Figures 3-4 shown, specifically, the mounting bracket 1 includes a pair of fixed pipes 11 arranged symmetrically, and the fixed pipes 11 have a central passage. The connecting frames 2 include sliding segments 21 slidably arranged in the central passage. The sliding segments 21 are matched with the shape of the central passage, which can ensure the stable up-and-down sliding of the connecting frames 2 in the fixed pipes 11 without deviation. Meanwhile, the sliding segments 21 can also allow the abutting spring to better abut and drive the connecting frames 2 after being arranged in the central passage.

[0029] And the fixed tube 11 is provided with a limiting hole 5 communicated with the center channel, the limiting hole 5 is long strip-shaped, and is parallel to the length direction of the fixed tube 11; the sliding section 21 is provided with a connecting hole 6, the connecting hole 6 is threadedly connected with a pin shaft 7, one end of the pin shaft 7 extends to the outside through the limiting hole 5; and the pin shaft 7 is provided with a fastener at both ends. The limiting hole 5 on the fixed tube 11 can penetrate the fixed tube 11, and the connecting hole 6 on the sliding section 21 is also penetrated. When the connecting frame 2 and the fixed tube 11 are installed, the sliding section 21 can be directly inserted into the center channel, then the pin shaft 7 is inserted into the connecting hole 6 from the limiting hole 5, and then the both ends of the pin shaft 7 are fixed. This makes the installation and disassembly of the connecting frame 2 more convenient and fast, and there is no complex structure.

[0030] The limiting structure 4 is further arranged between the connecting frame 2 and the fixed tube 11. The limiting structure 4 limits the position of the pin shaft 7, so that the connecting frame 2 can only move in a small range at a limited height.

[0031] Specifically, as shown in Figure 3 、 5 The limiting structure 4 includes a connecting rod 41 slidingly arranged between a pair of fixed tubes 11 and horizontally arranged. Both ends of the connecting rod 41 are provided with limiting pieces 42 corresponding to the position of the pin shaft 7. The limiting pieces 42 include a lower limiting plate 422 and an upper limiting plate 421 connected with the connecting rod 41. The upper limiting plate 421 is detachably connected with the connecting rod 41, and a compensation space 423 for the movement of the pin shaft 7 is formed between the upper limiting plate 421 and the lower limiting plate 422. When the punch 300 is tilted due to installation error or uneven material thickness, the pin shaft 7 can freely move in the compensation space 423 between the upper and lower limiting plates 422, so that the connecting frame 2 automatically adjusts the blade angle through the deformation of the elastic element 3, ensures uniform distribution of cutting force, and at the same time, the compensation space 423 can ensure the movement of the pin shaft 7 within a certain range, realize flexible adjustment of the blade height, and prevent excessive movement of the connecting frame 2. The upper limiting plate 421 is detachably connected. In this embodiment, the upper limiting plate 421 is fixed on the connecting rod 41 by two bolts. By detaching the bolts, different specifications of the upper limiting plate 421 can be replaced, so as to adjust the distance of the compensation space 423. At the same time, the upper limiting plate 421 can be fixed with the connecting rod 41 by buckling or plug-in connection.

[0032] The limit hole 5 is inwardly recessed on the side to form a limit groove 8, and the connecting rod 41 is threadedly connected with a limit bolt 9 having an end capable of being clamped in the limit groove 8. The limit bolt 9 can be adjusted to fix the connecting rod 41 at a suitable position, thereby limiting the movement range of the pin shaft 7 on the limit hole 5 and ensuring the stability of the tool holder during the working process. In this embodiment, the end of the limit bolt 9 is rotatably connected with a rectangular friction plate clamped in the limit groove 8, and the connecting strength and stability between the connecting rod 41 and the fixed tube 11 can be improved by the friction plate, so as to ensure that the impact force during the working process of the punching tool 300 will not cause the connecting rod 41 to loosen and deviate. In order to better improve the stability of the connecting rod 41, the connecting rod 41 can also be connected by a conventional detachable connection mode, for example, a ratchet structure is arranged at the abutting part of the fixed tube 11 and the connecting rod 41, so as to improve the connection stability.

[0033] The pin shaft 7 is rotatably connected with a bearing 10 arranged in the limit groove 8 at one end passing through the limit hole 5, and the bearing 10 can be abutted between the upper limit plate 421 and the lower limit plate 422. The pin shaft 7 is rotatably connected with a bearing 10 arranged in the limit groove 8 at one end passing through the limit hole 5, and the bearing 10 can be abutted between the upper limit plate 421 and the lower limit plate 422. The arrangement of the bearing 10 makes the movement of the pin shaft 7 in the limit groove 8 more smooth, reduces the friction resistance, and also improves the reliability of the entire limit structure 4.

[0034] The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0035] The above is only a preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable blade holder for a cutting machine, comprising a mounting bracket (1) mounted on a cutting device (100) and connected to a drive unit (200), characterized in that, A pair of independently arranged connecting frames (2) are slidably arranged on the mounting frame (1). A punch (300) is arranged on the pair of connecting frames (2), and the blade of the punch (300) is located below the connecting frame (2). An elastic element (3) is arranged between the pair of connecting frames (2) and the mounting frame (1). The elastic element (3) is used to drive the corresponding blade holder to apply a force to one side of the blade head towards the worktable of the cutting device (100).

2. The adjustable blade holder of a cutting machine according to claim 1, characterized in that, The mounting bracket (1) includes a pair of symmetrically arranged fixed tubes (11), and a central channel is provided inside the fixed tubes (11). The connecting bracket (2) includes a sliding section (21) slidably disposed in the central channel. It also includes a limiting structure (4) disposed between the connecting bracket (2) and the fixed tubes (11), and the limiting structure (4) is used to limit the movement range of the connecting bracket (2) in the central channel.

3. The adjustable blade holder of a cutting machine according to claim 2, characterized in that, The fixed tube (11) is provided with a limiting hole (5) that communicates with the central channel. The limiting hole (5) is elongated and parallel to the length direction of the fixed tube (11). The sliding section (21) is provided with a connecting hole (6). A pin (7) is threaded onto the connecting hole (6). One end of the pin (7) passes through the limiting hole (5) and extends to the outside.

4. The adjustable blade holder of a cutting machine according to claim 3, characterized in that, The limiting structure (4) includes a connecting rod (41) that is slidably disposed between a pair of fixed tubes (11) and is horizontally disposed. Both ends of the connecting rod (41) are provided with limiting members (42) corresponding to the position of the pin (7). The limiting members (42) are used to limit the movement range of the pin (7) on the limiting hole (5).

5. The adjustable blade holder of a cutting machine according to claim 4, characterized in that, The limiting member (42) includes a lower limiting plate (422) and an upper limiting plate (421) connected to the connecting rod (41). The upper limiting plate (421) is detachably connected to the connecting rod (41), and a compensation space (423) for the movement of the pin shaft (7) is formed between the upper limiting plate (421) and the lower limiting plate (422).

6. The adjustable blade holder of a cutting machine according to claim 5, characterized in that, The limiting hole (5) is recessed inward to form a limiting groove (8), and the connecting rod (41) is threaded with a limiting bolt (9) whose end can be locked in the limiting groove (8).

7. The adjustable blade holder of a cutting machine according to claim 6, characterized in that, The pin (7) is rotatably connected to a bearing (10) that is rolled in the limiting groove (8) at one end through the limiting hole (5). The bearing (10) can abut between the upper limiting plate (421) and the lower limiting plate (422).

8. An adjustable blade holder for a cutting machine according to any one of claims 2-7, characterized in that, The elastic element (3) is an abutment spring, which is disposed in the central channel and one end abuts against the end of the sliding section (21).

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