A hobbing machine slide for a numerically controlled lathe

Abstract

The utility model discloses a gear -hobbing machine sliding seat of numerical control lathe, including the slide frame of setting up the sliding seat, still include the slide cylinder in the sliding seat, be equipped with a plurality of clamping grooves on the slide cylinder, be equipped with the driving part of circumferential arrangement in the sliding seat, be equipped with the push head of embedding with clamping groove on the driving part, still be equipped with the trigger lever for the resistance push driving part and present the circumferential activity of the sliding seat on, the utility model provides gear -hobbing machine sliding seat of numerical control lathe, periodically drive sliding seat to slide to exceed its travel position, and deliberately impact the end of trigger lever end portion slide frame end portion, make trigger lever resistance push driving part and present the circumferential activity of push head direction, for making push head to promote the circumferential rotation of slide cylinder, thereby change the stress position of guiding slide bar and slide cylinder, avoid the serious wear and tear problem that hangs upside down pressure is located somewhere of slide cylinder long -term, guarantee the vertical movement accuracy of tool.

Description

Technical Field

[0001] This utility model relates to the field of machine tool slide technology, and more specifically to a gear hobbing machine slide for a CNC lathe. Background Technology

[0002] Gear hobbing machines are commonly used for machining gears. Their principle is mainly based on the generating method, which is a method of machining gears by simulating the meshing and rolling process of a pair of helical gears.

[0003] According to the publication (announcement) number: CN108500402A, publication (announcement) date: 2018-09-07, a novel gear hobbing machine is disclosed, belonging to the field of gear manufacturing and processing, which solves the problem of the cumbersome clamping of gear workpieces in current gear hobbing machines. The key technical point is that the novel gear hobbing machine includes a frame and a gear hobbing device, and also includes a clamping device for fixing the gear workpiece. The clamping device includes a clamping column, a clamping base for placing the gear workpiece and facing the clamping column, and a driver for driving the clamping column to rise and fall to achieve cooperation with the clamping base. The clamping column includes a mandrel and an expansion assembly mounted on the mandrel, which can clamp and fix the gear through expansion. The expansion assembly includes a sliding sleeve slidably sleeved on the mandrel, an expansion sleeve mounted on the sliding sleeve, and a driving component slidably sleeved on the mandrel and capable of being inserted into the expansion sleeve to achieve expansion of the expansion sleeve. The novel gear hobbing machine provides convenient and efficient clamping of gear workpieces.

[0004] In the prior art, including the aforementioned patents, the slide of a gear hobbing machine is usually driven by a lead screw or hydraulic rod and includes both vertical and horizontal movement. However, for a slide with an inverted tool, the slide needs to bear the weight of the tool. As a result, the slide will be pressed against one side by the guide rod for a long time, causing severe wear on the sliding hole of the slide and causing errors in the vertical movement of the tool, which affects the machining accuracy of the gear inner hole. Utility Model Content

[0005] The purpose of this invention is to provide a gear hobbing machine slide for a CNC lathe, aiming to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gear hobbing machine slide for a CNC lathe includes a slide frame on which the slide is mounted, and a slide cylinder movable in the slide. The slide cylinder has multiple slots, and the slide has a circumferentially arranged driving component.

[0008] The drive component is provided with a push head that fits into the slot, and the slide is also provided with a trigger rod for pushing the drive component to move in a circumferential direction.

[0009] Preferably, a plurality of ball bearings are movably disposed in the slide.

[0010] Preferably, it also includes a card frame disposed on the slide, wherein a support block for the movement of the trigger rod is fixedly installed on the card frame.

[0011] Preferably, the driving component is provided with a contact block, and the trigger rod is fixedly installed with a push block that abuts against the contact block.

[0012] Preferably, the trigger rod has an end piece that mates with the support block.

[0013] In the above technical solution, the hobbing machine slide of the CNC lathe provided by this utility model has the following beneficial effects: by maintaining a sliding connection between the guide slide rod and the slide cylinder, the direct wear on the slide block is effectively reduced, ensuring the service life of the slide block. The slide block is periodically driven to slide beyond its stroke position, and the end of the trigger rod is deliberately struck to the end of the slide frame, so that the trigger rod pushes the drive component to move circumferentially in the direction of the push head, which is used to make the push head push the slide cylinder to rotate circumferentially, thereby changing the force position of the guide slide rod and the slide cylinder, avoiding the serious wear problem caused by the inverted pressure being located in a certain place of the slide cylinder for a long time, and ensuring the vertical movement accuracy of the tool. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the slide and its upper slide block assembly provided in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the slide block provided in an embodiment of the present utility model;

[0017] Figure 3 A right-side view of the assembly of the slide cylinder, card frame, and trigger rod provided in an embodiment of this utility model;

[0018] Figure 4 This is a side cross-sectional view of the slide cylinder and a left-side view of some of the trigger rods provided in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Carriage; 2. Carriage base; 3. Carriage cylinder; 31. Ball bearing; 4. Frame; 41. Support block; 5. Trigger rod; 51. End; 52. Push block; 6. Drive component; 61. Contact block; 62. Push head; 63. Slot. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, a gear hobbing machine slide for a CNC lathe includes a slide 1 with a slide 2, and a slide cylinder 3 that moves within the slide 2. The slide cylinder 3 has multiple slots 63, and the slide 2 has a circumferentially arranged drive component 6.

[0023] The drive unit 6 is provided with a push head 62 that fits into the slot 63, and the slide 2 is also provided with a trigger rod 5 for pushing the drive unit 6 to move in a circumferential direction.

[0024] Specifically, the driving and sliding methods of the slide block 2 on the slide frame 1 are existing technologies and will not be described in detail here. The slide cylinder 3 is located in the hole on the slide block 2 that provides the guide slide rod, that is, the guide slide rod will slide in the slide cylinder 3.

[0025] Furthermore, the groove 63 has a rhomboid cross-section, and the two axially arranged sides of the inner wall of the groove 63 are left untreated, while one of the other two sides is rounded towards the port, and the other side is deep away from the port so that the tip of the pusher 62 can be engaged.

[0026] Furthermore, the slide 2 is provided with a slot in the hole, and the inner wall of the slot is arc-shaped to adapt to the circumferential movement trajectory of the drive component 6.

[0027] By maintaining a sliding connection between the guide slide rod and the slide cylinder 3, the direct wear on the slide block 2 is effectively reduced, ensuring the service life of the slide block 2. The slide block 2 is periodically driven to slide beyond its stroke position, and the end of the trigger rod 5 is deliberately struck against the end of the slide frame 1, causing the trigger rod 5 to push the drive component 6 to move circumferentially towards the push head 62. This is used to make the push head 62 push the slide cylinder 3 to rotate circumferentially, thereby changing the force position of the guide slide rod and the slide cylinder 3, avoiding the serious wear problem caused by the inverted pressure being located in a certain place on the slide cylinder 3 for a long time, and ensuring the vertical movement accuracy of the tool.

[0028] As a further embodiment of this utility model, a plurality of balls 31 are movably disposed in the slide 3.

[0029] Specifically, the ball bearing 31 is embedded in a recess on the inner wall of the slide cylinder 3.

[0030] The friction of the slide block 2 is reduced by the equidistantly arranged balls 31, and the low friction effect can also be achieved after changing the position of the slide cylinder 3. At the same time, it also reduces the resistance during the circumferential rotation of the slide cylinder 3, allowing the slide cylinder 3 to adjust its position quickly.

[0031] As another embodiment of this utility model, it also includes a card frame 4 disposed on the slide 2, and a support block 41 for the trigger rod 5 to move is fixedly installed on the card frame 4.

[0032] Specifically, the frame 4 is a tubular metal block, and the inner diameter of the frame 4 is larger than the diameter of the guide rod, so as to avoid interfering with the movement of the slide block 2, and at the same time, it can also provide a limit for the slide cylinder 3. The lubricating oil applied on the guide rod can also enter between the frame 4 and the slide cylinder 3 to reduce the friction when the slide cylinder 3 rotates.

[0033] Furthermore, the card frame 4 has multiple protrusions at its port, and screw holes are provided on the protrusions. The support block 41 has holes for the trigger rod 5 to slide, and the slide block 2 also has a groove segment that connects to the slot hole so that the rod body of the trigger rod 5 can move in the groove segment.

[0034] The slide cylinder 3 is limited by a detachable clip 4 with a gap between them so that the slide cylinder 3 can be replaced after severe wear. This improves the efficiency of the slide block 2 and reduces the maintenance cost of the entire equipment. It also ensures the working stability of the guide slide rod, and the support block 41 can also provide support for the trigger rod 5 to ensure that the drive component 6 can drive the rotation normally.

[0035] As another embodiment further provided by this utility model, the driving member 6 is provided with a contact block 61, and the trigger rod 5 is fixedly installed with a push block 52 that abuts against the contact block 61.

[0036] Specifically, push block 52 is located at the end of trigger rod 5, such as Figure 3 and Figure 4 As shown, the push blocks 52 on the left and right sides are arranged in two ways, one above and one below, to adapt to the force pushing direction of the push head 62 and to facilitate the unidirectional rotation of the slide cylinder 3. The number of drive components 6 can be two or more, and the number of corresponding trigger rods 5 should be equal to that of drive components 6.

[0037] Furthermore, the push block 52 moves within the slot of the slide block 2, and trigger rods 5 and retaining frames 4 are provided on both sides of the moving end face of the slide block 2 to ensure the working stability of the slide cylinder 3.

[0038] Furthermore, a pusher 62 with a pointed tip is fixedly mounted on a contact block 61. The contact block 61 has an end face of the same size as the contact surface of the pusher 52, so that the pusher 52 can slide stably with the contact block 61.

[0039] Furthermore, an arc-shaped slide rod and an arc-shaped tension spring are fixedly installed on the contact block 61, with the tension spring arranged in a ring on the outside of the arc-shaped slide rod. At the same time, the tension spring is fixedly connected to the inner wall of the slot, and an arc-shaped insertion hole is opened in the slot for the arc-shaped slide rod to slide.

[0040] The axially moving trigger rod 5 abuts against the contact block 61 and generates displacement, causing the tension spring on the contact block 61 to deform and the arc-shaped slide rod to slide in the insertion hole without disengaging. This displacement acts on the push head 62, allowing the push head 62 to abut against the slot 63 and drive the slide cylinder 3 to rotate. After the slide cylinder 3 is adjusted, the push block 52 is disengaged from the contact block 61, allowing the push head 62 to reset and re-engage in the next slot 63. This achieves stable locking of the slide cylinder 3 after adjustment, ensuring the working stability of the guide slide rod.

[0041] As another embodiment provided in this utility model, the trigger rod 5 is fixedly mounted with an end 51 that cooperates with the support block 41.

[0042] Specifically, a spring is fixedly installed between the end 51 and the support block 41, and the spring is arranged in a ring on the outer side of the end of the trigger rod 5.

[0043] By extending the slide block 2 beyond its original working stroke and bringing the end 51 into contact with the end of the slide frame 1, the spring is compressed, which pushes the trigger rod 5 to move axially, thereby completing the triggering work of the drive component 6. The position of the slide cylinder 3 can be changed periodically, improving the safety of equipment operation.

[0044] Working principle: The guide slide rod maintains a sliding connection with the slide cylinder 3, effectively reducing direct wear on the slide block 2 and ensuring the service life of the slide block 2. The slide block 2 is periodically driven to slide beyond its stroke position, and the end of the trigger rod 5 is deliberately struck against the end of the slide frame 1, causing the axially moving trigger rod 5 to abut against the contact block 61 and generate displacement. This causes the tension spring on the contact block 61 to deform, and the arc-shaped slide rod to slide in the insertion hole without disengaging. The resulting displacement acts on the push head 62, which then abuts against the slot 63 to drive the slide cylinder 3 to rotate. After the slide cylinder 3 is adjusted, the push block 52 is disengaged from the contact block 61, allowing the push head 62 to reset and re-engage in the next slot 63. This achieves stable locking of the slide cylinder 3 after adjustment, thereby changing the force position of the guide slide rod and the slide cylinder 3 and preventing severe wear caused by the inverted pressure being located in one place on the slide cylinder 3 for a long time.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gear hobbing machine slide for a CNC lathe, comprising a carriage (1) on which the slide (2) is provided, characterized in that, It also includes a slide cylinder (3) that moves in the slide block (2), the slide cylinder (3) having multiple slots (63) and the slide block (2) having a circumferentially arranged driving member (6); The drive member (6) is provided with a pusher (62) that fits into the slot (63), and the slide (2) is also provided with a trigger rod (5) for pushing the drive member (6) to move in a circumferential direction.

2. The gear hobbing machine slide of a CNC lathe according to claim 1, characterized in that, Multiple ball bearings (31) are movably arranged in the slide (3).

3. The gear hobbing machine slide of a CNC lathe according to claim 1, characterized in that, It also includes a card frame (4) set on the slide (2), on which a support block (41) for the trigger rod (5) to move is fixedly installed.

4. The gear hobbing machine slide of a CNC lathe according to claim 3, characterized in that, The drive component (6) is provided with a contact block (61), and the trigger rod (5) is fixedly installed with a push block (52) that abuts against the contact block (61).

5. The gear hobbing machine slide of a CNC lathe according to claim 4, characterized in that, The trigger rod (5) is fixedly installed with an end (51) that cooperates with the support block (41).

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