A spindle brake assist structure

Abstract

The utility model relates to the technical field of main shaft brake, disclose a kind of main shaft brake auxiliary structure, for the brake disc of main shaft mechanism is assisted braking, fixedly installed on the main shaft mechanism installation support, the brake body is installed in the one side of installation support, auxiliary device is set in the one side of brake body, auxiliary device includes: side frame, it is set in the one side of brake body;The utility model, by screwing threaded rod, under the action of rotating seat, the side plate of installation frame both sides is respectively in the sliding groove of the corresponding inner wall of side frame and is slid down in position, so that the inner wall of brake pad of V type structure is rested on the brake disc of main shaft mechanism, realize the auxiliary braking effect of brake disc on main shaft mechanism, prevent the main shaft mechanism from rotating in the case of accidental failure of control hydraulic system and lose the braking ability of main shaft mechanism, the main shaft mechanism appears accidental rotation.

Description

Technical Field

[0001] This utility model relates to the field of spindle brake technology, and in particular to an auxiliary structure for a spindle brake. Background Technology

[0002] Twin-spindle, twin-turret milling and turning machines are high-performance machining equipment that incorporates twin-spindle and twin-turret technology. They typically consist of a main spindle and a sub-spindle, which work together in conjunction with the milling and drilling functions of the twin turrets to complete integrated machining of complex parts (such as turning, milling, boring, tapping, etc.). In twin-spindle, twin-turret milling and turning machines, braking the spindles (including the main spindle and sub-spindle) is a critical operation to ensure machining safety, accuracy, efficiency, and equipment lifespan.

[0003] Existing spindle braking methods generally involve the machine tool's hydraulic system using a brake to decelerate the high-speed rotating spindle brake disc rapidly until it stops rotating. Static friction is used to "lock" the brake disc, preventing the spindle from rotating due to external forces (such as vibration or gravity). However, during prolonged use, hydraulic system leaks can occur due to loose hydraulic line joints or worn seals. If a large amount of hydraulic oil leaks, insufficient oil enters the brake cylinder, failing to generate enough pressure to push the piston. This prevents the brake pads from effectively clamping the spindle brake disc, resulting in a loss of braking capability and potentially causing the spindle to rotate unexpectedly. This can lead to unintended friction or collision between the workpiece and the cutting tool. Therefore, this application provides an auxiliary structure for a spindle brake to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary structure for a spindle brake, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A spindle brake auxiliary structure is provided for auxiliary braking of the brake disc of a spindle mechanism. A mounting bracket is fixedly installed on the spindle mechanism, and a brake body is mounted on one side of the mounting bracket. An auxiliary device is disposed on one side of the brake body, and the auxiliary device includes:

[0007] Side bracket, which is located on one side of the brake body;

[0008] An auxiliary braking assembly, mounted on the side frame, can assist in braking the brake disc to prevent the spindle mechanism from rotating unexpectedly.

[0009] Screw assembly; it is mounted on the side frame and the auxiliary braking assembly can be adjusted by sliding the screw assembly.

[0010] Preferably, the top side of the brake body has a threaded hole, and the brake body has two brake pads, which can perform primary braking on the brake disc of the main shaft mechanism.

[0011] Preferably, the side frame has a round opening, and a bolt is located on the top of the side frame. One end of the bolt passes through the round opening on the side frame and is threaded into a threaded hole on the top side of the brake body.

[0012] Preferably, the inner wall of the side frame has two sliding grooves, and the two sliding grooves in the side frame are symmetrically arranged.

[0013] Preferably, the auxiliary braking assembly includes:

[0014] Two side plates are slidably installed in two grooves of the side frame;

[0015] The mounting frame is fixedly installed on one side of the two side panels that are close to each other, and the mounting frame is arranged in a U-shape.

[0016] The brake pad is fixedly installed on the inner wall of the mounting frame. The brake pad is arranged in a V-shape, and the inner wall of the brake pad abuts against the brake disc of the main shaft mechanism.

[0017] Preferably, the screw assembly includes:

[0018] A rotating seat is fixedly installed on the top side of the mounting frame;

[0019] A threaded rod, one end of which is threaded through the outside of the mounting frame and rotatably mounted on the top side of the rotating seat.

[0020] Preferably, side ears are fixedly installed on both sides of the side frame, and the two side ears are snapped onto the brake body.

[0021] After the brake body applies the main braking force to the brake disc of the spindle mechanism, the operator, by turning the threaded rod, causes the side plates on both sides of the mounting frame to slide downwards in the corresponding grooves on the inner wall of the side frame under the action of the rotating seat. This allows the inner wall of the V-shaped brake pad to press against the brake disc of the spindle mechanism, thus achieving auxiliary braking of the brake disc on the spindle mechanism. This prevents the spindle mechanism from unexpectedly rotating when the hydraulic control system fails and loses its braking ability, and reduces the problem of unexpected friction or collision between the workpiece and the tool clamped on the spindle mechanism. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2This is a structural schematic diagram of the brake body of this utility model from a perspective.

[0024] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A;

[0025] Figure 4 This is a partial cross-sectional view of the structure of this utility model from an exploded perspective;

[0026] Figure 5 This is a schematic diagram of the structure of the brake body of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure in plan view of this utility model.

[0028] In the diagram: 100, main shaft mechanism; 101, brake disc; 102, mounting bracket; 200, brake body; 201, threaded hole; 202, brake pad; 300, side frame; 301, slide groove; 302, round opening; 3021, bolt; 303, side lug; 400, auxiliary braking assembly; 401, side plate; 402, mounting frame; 403, brake pad; 500, screw assembly; 501, rotating seat; 502, threaded rod. Detailed Implementation

[0029] 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.

[0030] To address the problem that in dual-spindle, dual-turret milling and turning systems, the brakes can easily cause unexpected spindle rotation when the machine tool's hydraulic control system malfunctions and loses braking capability, leading to unintended friction or collision between the workpiece and the cutting tool. This embodiment discloses an auxiliary structure for the spindle brake, used to assist in braking the brake disc 101 of the spindle mechanism 100. The auxiliary structure includes: Figure 3 The side frame 300, auxiliary braking assembly 400, and screw assembly 500 are shown.

[0031] like Figure 1 As shown, a mounting bracket 102 is fixedly installed on the spindle mechanism 100, and a brake body 200 is installed on one side of the mounting bracket 102.

[0032] like Figure 4As shown, in order to mount the side bracket 300 onto the brake body 200, the top side of the brake body 200 has a threaded hole 201, while the side bracket 300 has a round opening 302. A bolt 3021 is located on the top of the side bracket 300. One end of the bolt 3021 passes through the round opening 302 on the side bracket 300 and is threaded into the threaded hole 201 on the top side of the brake body 200, thereby fixing the side bracket 300 onto one side of the brake body 200.

[0033] Continue as Figure 4 As shown, in order to install the auxiliary braking assembly 400, the inner wall of the side frame 300 has two sliding grooves 301, which are symmetrically arranged. The auxiliary braking assembly 400 is installed in the two sliding grooves 301 of the side frame 300. The auxiliary braking assembly 400 can assist in braking the brake disc 101 to prevent the main spindle mechanism 100 from rotating accidentally. The auxiliary braking assembly 400 includes: two side plates 401, a mounting frame 402, and a brake pad 403. The two side plates 401 are slidably installed in the two sliding grooves 301 of the side frame 300 respectively. The mounting frame 402 is fixedly installed on the side of the two side plates 401 that are close to each other. The mounting frame 402 is arranged in a U-shape. The brake pad 403 is fixedly installed on the inner wall of the mounting frame 402. The brake pad 403 is arranged in a V-shape, and the inner wall of the brake pad 403 abuts against the brake disc 101 of the main spindle mechanism 100.

[0034] Continue as Figure 4 As shown, in order to adjust the sliding position of the auxiliary braking assembly 400 within the two sliding grooves 301 on the side frame 300, a screw assembly 500 is provided on the side frame 300. The sliding position of the auxiliary braking assembly 400 can be adjusted through the screw assembly 500. The auxiliary braking assembly 400 includes a rotating seat 501 and a threaded rod 502. The rotating seat 501 is fixedly installed on the top side of the mounting frame 402. One end of the threaded rod 502 is threaded through the outside of the mounting frame 402 and rotatably installed on the top side of the rotating seat 501. By screwing the threaded rod 502, under the action of the rotating seat 501, the side plates 401 on both sides of the mounting frame 402 are driven to slide upward or downward within the corresponding sliding grooves 301 on the inner wall of the side frame 300.

[0035] like Figure 5 As shown, the brake body 200 has two brake pads 202. Through the control of the hydraulic system of the dual-spindle dual-turret milling and turning composite machine tool, the two brake pads 202 of the brake body 200 can perform the main braking on the brake disc 101 of the spindle mechanism 100, so that the high-speed rotating main brake disc 101 is rapidly decelerated until it stops rotating, and the brake disc 101 is locked by static friction.

[0036] like Figure 4As shown, side ears 303 are fixedly installed on both sides of the side bracket 300. The two side ears 303 are snapped onto the brake body 200, thereby improving the installation stability of the side bracket 300 on the brake body 200.

[0037] After the brake body 200 applies the main brake to the brake disc 101 of the spindle mechanism 100, the operator can rotate the threaded rod 502. Under the action of the rotating seat 501, the side plates 401 on both sides of the mounting frame 402 will slide downward in the corresponding sliding grooves 301 on the inner wall of the side frame 300. This allows the inner wall of the V-shaped brake pad 403 to abut against the brake disc 101 of the spindle mechanism 100, thus achieving auxiliary braking of the brake disc 101 on the spindle mechanism 100. This prevents the spindle mechanism 100 from rotating unexpectedly when the hydraulic control system fails and loses its braking ability. It also reduces the problem of unexpected friction or collision between the workpiece and the tool clamped on the spindle mechanism 100.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A spindle brake auxiliary structure for auxiliary braking of the brake disc (101) of a spindle mechanism (100), wherein a mounting bracket (102) is fixedly mounted on the spindle mechanism (100), a brake body (200) is mounted on one side of the mounting bracket (102), and an auxiliary device is disposed on one side of the brake body (200), characterized in that, The auxiliary devices include: Side bracket (300), which is located on one side of the brake body (200); An auxiliary braking assembly (400) is mounted on the side frame (300). The auxiliary braking assembly (400) can assist in braking the brake disc (101) to prevent the main shaft mechanism (100) from rotating unexpectedly. Screw assembly (500); which is mounted on the side frame (300), and the auxiliary braking assembly (400) can be slidably adjusted by the screw assembly (500).

2. The auxiliary structure for a spindle brake according to claim 1, characterized in that, The top side of the brake body (200) has a threaded hole (201), and the brake body (200) has two brake pads (202). The two brake pads (202) of the brake body (200) can perform main braking on the brake disc (101) of the main shaft mechanism (100).

3. The auxiliary structure for a spindle brake according to claim 2, characterized in that, The side frame (300) has a round opening (302), and a bolt (3021) is located above the side frame (300). One end of the bolt (3021) passes through the round opening (302) on the side frame (300) and is threaded into the threaded hole (201) on the top side of the brake body (200).

4. The auxiliary structure for a spindle brake according to claim 1, characterized in that, The inner wall of the side frame (300) has two sliding grooves (301), and the two sliding grooves (301) in the side frame (300) are symmetrically arranged.

5. The auxiliary structure for a spindle brake according to claim 4, characterized in that, The auxiliary braking assembly (400) includes: Two side plates (401) are slidably installed in two grooves (301) of the side frame (300); The mounting frame (402) is fixedly installed on one side of the two side plates (401) that are close to each other. The mounting frame (402) is arranged in a U-shape. Brake pad (403) is fixedly installed on the inner wall of the mounting frame (402). The brake pad (403) is arranged in a V-shape and the inner wall of the brake pad (403) abuts against the brake disc (101) of the main shaft mechanism (100).

6. The auxiliary structure for a spindle brake according to claim 5, characterized in that, The screw assembly (500) includes: A rotating seat (501) is fixedly mounted on the top side of the mounting frame (402); A threaded rod (502) has one end threaded through the outside of the mounting frame (402) and rotatably mounted on the top side of the rotating seat (501).

7. The auxiliary structure for a spindle brake according to claim 1, characterized in that, The side frame (300) is fixedly installed with side ears (303) on both sides, and the two side ears (303) are locked on the brake body (200).

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