Headstock assembly
By designing the adjustment and fixing structure in the headstock assembly, the problem of the headstock assembly being unable to be fixed after angle and position adjustment was solved, thus improving the stability and machining accuracy of the headstock assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-27
AI Technical Summary
The existing head assembly cannot be fixed after the angle and position are adjusted, resulting in poor stability.
A head frame assembly is designed, comprising a head frame base, self-aligning bearings, a hollow shaft, a geared motor, a swing angle device, a balance arm device, and a clamping device. The hollow shaft is driven to rotate by the geared motor, and the angle and position of the head frame assembly are adjusted and fixed by the swing angle device and the clamping device.
This improved the stability of the head assembly, ensuring good position and angle fixation during processing.
Smart Images
Figure CN224043113U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a machine head frame assembly and belongs to the field of machine tools. BACKGROUND
[0002] A milling machine mainly refers to a machine tool for machining various surfaces of a workpiece by a milling cutter, and generally takes the rotary motion of the milling cutter as the main motion and the movement of the workpiece and the milling cutter as the feeding motion; a grinding machine is a machine tool for grinding the surface of a workpiece by using a grinding tool, and most grinding machines use a high-speed rotating grinding wheel for grinding.
[0003] The cutter is installed on the machine head assembly, when the cutter is a grinding wheel, the machine tool is a grinding machine, and when the cutter is a milling cutter disc, the machine tool is a milling machine. When the grinding machine and the milling machine are used to machine a workpiece, the angle and position of the machine head assembly need to be adjusted so that the workpiece can be machined by the cutter. In the prior art, the position of the machine head assembly cannot be fixed after the angle and position are adjusted, which leads to poor stability of the machine head assembly during work. SUMMARY
[0004] The utility model aims at overcoming the above insufficient in the prior art, and provides a machine head frame assembly with a reasonable structure design.
[0005] The utility model solves the above problems by the technical scheme that the machine head frame assembly comprises a machine head frame seat, a self-aligning bearing, a hollow shaft and a speed reducer motor, the hollow shaft is installed on the machine head frame seat through the self-aligning bearing, and the speed reducer motor is installed at one end of the hollow shaft, and the structure is characterized in that it further comprises a swing angle device, and the swing angle device is installed on the speed reducer motor.
[0006] Further, the machine head frame assembly further comprises a balance arm device, and the balance arm device is sleeved outside the hollow shaft and connected with the machine head frame seat.
[0007] Further, the machine head frame assembly further comprises a clamp device, and the clamp device is sleeved outside the hollow shaft and installed on the machine head frame seat.
[0008] Further, the balance arm device comprises a balance arm and a tension spring, the balance arm is sleeved and fixed outside the hollow shaft, one end of the tension spring is connected with the balance arm, and the other end of the tension spring is connected with the machine head frame seat.
[0009] Further, the clamp device comprises a tightening screw, a clamp body, a locking buckle and a locking oil cylinder, the tightening screw is installed on the machine head frame seat, the clamp body is sleeved outside the hollow shaft, the lower end of the clamp body is in contact with the tightening screw, and the upper end of the clamp body is locked through the locking buckle and the locking oil cylinder.
[0010] Further, the locking buckle is provided with a U-shaped structure, a round hole and a waist-shaped hole, the upper end of each of the two hoop bodies is provided with a locking pin shaft, the two locking pin shafts are located in the round hole and the waist-shaped hole respectively, the cylinder of the locking oil cylinder is installed in the locking buckle, and the piston rod of the locking oil cylinder is in abutment with the locking pin shaft located in the waist-shaped hole.
[0011] Further, the hoop body is provided with an arc-shaped protruding structure which is in contact with the tightening screw.
[0012] Further, the swing angle device comprises a swing angle seat and a swing angle driving mechanism, the swing angle seat is installed on the speed reducer motor, and the swing angle driving mechanism is matched with the swing angle seat.
[0013] Further, the swing angle seat is provided with a swing angle seat cavity, the swing angle driving mechanism comprises a swing angle driving motor, a swing angle driving pulley, an eccentric shaft and a swing angle driving slider, the swing angle driving pulley and the swing angle driving slider are both installed on the eccentric shaft, the swing angle driving slider is located in the swing angle seat cavity, the swing angle driving pulley is driven by a belt from the swing angle driving motor, and the swing angle driving motor and the eccentric shaft are both installed on the machine head frame seat.
[0014] Further, the swing angle device further comprises a swing angle positioning mechanism, the swing angle positioning mechanism is installed on the swing angle seat and located below the swing angle seat cavity.
[0015] Further, the swing angle positioning mechanism comprises a swing angle positioning bottom plate, a swing angle positioning oil cylinder and a swing angle positioning top plate, the swing angle positioning bottom plate is installed on the swing angle seat and located below the swing angle seat cavity, the cylinder of the swing angle positioning oil cylinder is installed on the swing angle positioning bottom plate, the piston rod of the swing angle positioning oil cylinder is connected with the swing angle positioning top plate, and the swing angle positioning top plate is matched with the swing angle driving slider.
[0016] Compared with the prior art, the machine head frame assembly is used for installing the machine head assembly and can realize angle and position adjustment and fixing of the machine head assembly, the hollow shaft is controlled to rotate through the installed speed reducer motor, the hollow shaft is controlled to swing up and down through the swing angle device, so that the machine head assembly can be adjusted, the balance of the hollow shaft can be maintained through the arranged balance arm, and the position of the hollow shaft can be fixed through the arranged hoop device, so that the stability of the machine head assembly in operation is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a front view structural schematic diagram of the machine head frame assembly of the utility model embodiment.
[0018] Figure 2 is a left view structural schematic diagram of the machine head frame assembly of the utility model embodiment.
[0019] Figure 3 is the left view structure schematic diagram of the balancing arm device of the embodiment of the utility model.
[0020] Figure 4 is the left view structure schematic diagram of the hoop device of the embodiment of the utility model.
[0021] Figure 5 is the left view structure schematic diagram of the locking buckle of the embodiment of the utility model.
[0022] Figure 6 is the top view structure schematic diagram of the locking buckle of the embodiment of the utility model.
[0023] Figure 7 is the left view structure schematic diagram of the swing angle device of the embodiment of the utility model.
[0024] Figure 8 is the top view structure schematic diagram of the swing angle driving mechanism of the embodiment of the utility model.
[0025] Figure 9 is the left view structure schematic diagram of the head frame assembly of the embodiment of the utility model.
[0026] In the drawing: head frame seat 1, aligning bearing 2, hollow shaft 3, balancing arm device 4, hoop device 5, speed reducer motor 6, swing angle device 7,
[0027] balancing arm 41, tension spring 42,
[0028] top screw 51, hoop body 52, locking buckle 53, locking oil cylinder 54, locking pin shaft 55, round hole 56, waist hole 57,
[0029] swing angle seat 71, swing angle driving mechanism 72, swing angle positioning mechanism 73,
[0030] swing angle seat cavity 711,
[0031] swing angle driving motor 721, swing angle driving belt pulley 722, eccentric shaft 723, swing angle driving sliding block 724,
[0032] swing angle positioning bottom plate 731, swing angle positioning oil cylinder 732, swing angle positioning top plate 733. DETAILED DESCRIPTION
[0033] The utility model will be further explained in detail in combination with the drawings and through the embodiment, and the following embodiment is the explanation of the utility model and the utility model is not limited to the following embodiment.
[0034] EMBODIMENT
[0035] Referring to Figures 1 to 9It is to be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are merely used to cooperate with the content disclosed in the present specification for the understanding and reading of those skilled in the art, and are not used to limit the implementation of the present application, and therefore do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size does not affect the effect and purpose of the present application, and should still fall within the scope of the technical content disclosed in the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are merely used for clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship does not substantially change the technical content.
[0036] The headstock assembly in the embodiment comprises a headstock seat 1, a self-aligning bearing 2, a hollow shaft 3, a balance arm device 4, a clamp device 5, a speed reducer motor 6 and a swing angle device 7. The hollow shaft 3 is installed on the headstock seat 1 through the self-aligning bearing 2. The speed reducer motor 6 is installed at one end of the hollow shaft 3. The swing angle device 7 is installed on the speed reducer motor 6. The balance arm device 4 and the clamp device 5 are both sleeved on the outside of the hollow shaft 3. The balance arm device 4 is connected with the headstock seat 1. The clamp device 5 is installed on the headstock seat 1.
[0037] The balance arm device 4 in the embodiment comprises a balance arm 41 and a tension spring 42. The balance arm 41 is sleeved and fixed on the outside of the hollow shaft 3. One end of the tension spring 42 is connected with the balance arm 41. The other end of the tension spring 42 is connected with the headstock seat 1.
[0038] The clamp device 5 in the embodiment comprises a tightening screw 51, a clamp body 52, a locking buckle 53 and a locking oil cylinder 54. The tightening screw 51 is installed on the headstock seat 1. The clamp body 52 is sleeved on the outside of the hollow shaft 3. The lower end of the clamp body 52 is in contact with the tightening screw 51. The upper end of the clamp body 52 is locked through the locking buckle 53 and the locking oil cylinder 54.
[0039] The number of the locking buckles 53 in the embodiment is two. The locking buckles 53 are arranged in a U-shaped structure. The locking buckles 53 are provided with a circular hole 56 and a waist-shaped hole 57. The upper end of each of the two clamp bodies 52 is provided with a locking pin 55. The two locking pins 55 are respectively located in the circular hole 56 and the waist-shaped hole 57. The cylinder barrel of the locking oil cylinder 54 is installed in the locking buckle 53. The piston rod of the locking oil cylinder 54 is in abutment with the locking pin 55 located in the waist-shaped hole 57. The clamp body 52 is provided with an arc-shaped protruding structure. The arc-shaped protruding structure is in contact with the tightening screw 51.
[0040] The swing angle device 7 in the embodiment comprises a swing angle base 71, a swing angle driving mechanism 72 and a swing angle positioning mechanism 73, the swing angle base 71 is installed on the reduction motor 6, the swing angle driving mechanism 72 cooperates with the swing angle base 71, the swing angle positioning mechanism 73 is installed on the swing angle base 71 and is located below the swing angle base cavity 711.
[0041] The swing angle base 71 in the embodiment is provided with a swing angle base cavity 711, the swing angle driving mechanism 72 comprises a swing angle driving motor 721, a swing angle driving pulley 722, an eccentric shaft 723 and a swing angle driving slider 724, the swing angle driving pulley 722 and the swing angle driving slider 724 are both installed on the eccentric shaft 723, the swing angle driving slider 724 is located in the swing angle base cavity 711, the swing angle driving pulley 722 is driven by the swing angle driving motor 721 through a belt, and the swing angle driving motor 721 and the eccentric shaft 723 are both installed on the headstock base 1.
[0042] The swing angle positioning mechanism 73 in the embodiment comprises a swing angle positioning bottom plate 731, a swing angle positioning oil cylinder 732 and a swing angle positioning top plate 733, the swing angle positioning bottom plate 731 is installed on the swing angle base 71 and is located below the swing angle base cavity 711, the cylinder barrel of the swing angle positioning oil cylinder 732 is installed on the swing angle positioning bottom plate 731, the piston rod of the swing angle positioning oil cylinder 732 is connected with the swing angle positioning top plate 733, and the swing angle positioning top plate 733 cooperates with the swing angle driving slider 724.
[0043] Specifically, the headstock assembly can adjust the position and angle of the head assembly when working, the head assembly is installed on the other end of the hollow shaft 3, and the hollow shaft 3 is driven to rotate by the reduction motor 6, so that the angle adjustment of the head assembly rotating along the hollow shaft 3 is realized.
[0044] The swing angle driving motor 721 drives the swing angle driving pulley 722 to rotate, the swing angle driving pulley 722 drives the eccentric shaft 723 to rotate, the eccentric shaft 723 drives the swing angle driving slider 724 to make eccentric motion and slide in the swing angle base cavity 711 at the same time, and then the swing angle base 71 drives the reduction motor 6 and the hollow shaft 3 to swing and adjust on the headstock base 1, after the adjustment is completed, the swing angle driving motor 721 stops rotating, the swing angle positioning oil cylinder 732 tightly abuts against the swing angle positioning top plate 733, and the swing angle positioning top plate 733 abuts against the swing angle driving slider 724, so as to realize the positioning of the swing angle driving slider 724.
[0045] The balance arm device 4 can play a balancing role when adjusting the hollow shaft 3, so as to avoid that the machine head assembly is too heavy to cause the hollow shaft 3 to lose balance. After the adjustment is completed, the position of the hollow shaft 3 is fixed by the clamp device 5, that is, the two clamp bodies 52 are clamped on the outer wall of the hollow shaft 3 by the locking oil cylinder 54 pressing the locking pin shaft 55 in the waist-shaped hole 57. In the initial state, the distance between the two clamp bodies 52 can be adjusted by rotating the two pressing screws 51 according to the outer diameter of the hollow shaft 3.
[0046] In addition, it should be noted that the specific embodiments described in the specification, the shape of the zero, the components, the name taken, etc. can be different, and the above described in the specification is only an example of the structure of the utility model. Any equivalent change or simple change made according to the structure, features and principles described in the utility model patent concept is included in the protection scope of the utility model patent. The skilled in the art of the utility model can make various modifications or supplements or adopt similar ways to replace the described specific embodiments, as long as it does not deviate from the structure of the utility model or exceed the scope defined in the claims, which shall belong to the protection scope of the utility model.
Claims
1. A headstock assembly comprising a headstock base (1), a self-aligning bearing (2), a hollow shaft (3) and a reduction motor (6), the hollow shaft (3) being mounted on the headstock base (1) by means of the self-aligning bearing (2), the reduction motor (6) being mounted on one end of the hollow shaft (3), characterized in that: Further comprising a swing angle device (7) installed on the reduction motor (6).
2. The nosepiece assembly of claim 1, wherein: The headstock assembly further comprises a balance arm device (4) sleeved outside the hollow shaft (3) and connected with the headstock base (1).
3. The nosepiece assembly of claim 1, wherein: The headstock assembly further comprises a clamp device (5) sleeved outside the hollow shaft (3) and installed on the headstock base (1).
4. The nosepiece assembly of claim 2, wherein: The balance arm device (4) comprises a balance arm (41) sleeved and fixed outside the hollow shaft (3) and a tension spring (42) with one end connected with the balance arm (41) and the other end connected with the headstock base (1).
5. The nosepiece assembly of claim 3, wherein: The clamp device (5) comprises a tightening screw (51) installed on the headstock base (1), a clamp body (52) sleeved outside the hollow shaft (3), a lower end of the clamp body (52) in contact with the tightening screw (51), and an upper end of the clamp body (52) locked by a locking buckle (53) and a locking oil cylinder (54).
6. The nosepiece assembly of claim 5, wherein: The locking buckle (53) is in a U-shaped structure, provided with a round hole (56) and a waist-shaped hole (57), and the upper end of each of the two clamp bodies (52) is provided with a locking pin shaft (55), the two locking pin shafts (55) are respectively located in the round hole (56) and the waist-shaped hole (57), the cylinder barrel of the locking oil cylinder (54) is installed in the locking buckle (53), and the piston rod of the locking oil cylinder (54) is in abutment with the locking pin shaft (55) located in the waist-shaped hole (57).
7. The nosepiece assembly of claim 5, wherein: The clamp body (52) is provided with an arc-shaped protruding structure in contact with the tightening screw (51).
8. The nosepiece assembly of claim 1, wherein: The swing angle device (7) comprises a swing angle base (71) and a swing angle driving mechanism (72), the swing angle base (71) is installed on the reduction motor (6), and the swing angle driving mechanism (72) is matched with the swing angle base (71).
9. The nosepiece assembly of claim 8, wherein: The swing angle base (71) is provided with a swing angle base cavity (711), the swing angle driving mechanism (72) comprises a swing angle driving motor (721), a swing angle driving belt pulley (722), an eccentric shaft (723) and a swing angle driving slider (724), the swing angle driving belt pulley (722) and the swing angle driving slider (724) are both installed on the eccentric shaft (723), the swing angle driving slider (724) is located in the swing angle base cavity (711), the swing angle driving belt pulley (722) is driven by the swing angle driving motor (721) through a belt, and the swing angle driving motor (721) and the eccentric shaft (723) are both installed on the headstock base (1).
10. The nosepiece assembly of claim 8, wherein: The swing angle device (7) further comprises a swing angle positioning mechanism (73) which is installed on the swing angle seat (71) and is located below the swing angle seat cavity (711); the swing angle positioning mechanism (73) comprises a swing angle positioning bottom plate (731), a swing angle positioning oil cylinder (732) and a swing angle positioning top plate (733), the swing angle positioning bottom plate (731) is installed on the swing angle seat (71) and is located below the swing angle seat cavity (711), the cylinder barrel of the swing angle positioning oil cylinder (732) is installed on the swing angle positioning bottom plate (731), the piston rod of the swing angle positioning oil cylinder (732) is connected with the swing angle positioning top plate (733), and the swing angle positioning top plate (733) is matched with the swing angle driving sliding block (724).