Parallel linear motor module

Abstract

A parallel linear motor module comprises a machine frame and a bearing plate, the bearing plate is arranged in the machine frame in a front-back sliding mode through a linear guide rail assembly, a first motor magnetic plate is fixedly arranged on the top side of the bearing plate, a second motor magnetic plate is fixedly arranged on the bottom side of the bearing plate, and a first motor coil corresponding to the first motor magnetic plate is fixedly arranged on the inner side of a top plate of the machine frame; a second motor coil corresponding to the second motor magnetic plate is fixedly arranged on the inner side of a bottom plate of the machine frame, a magnetic railing ruler and a photoelectric sensor which are arranged in the sliding direction of the bearing plate are arranged on the bottom side of the bearing plate, a reading head and a blocking piece are arranged on the machine frame, the reading head corresponds to the magnetic railing ruler, and the photoelectric sensor corresponds to the blocking piece. An electric brake is further arranged on the machine frame and corresponds to the linear guide rail assembly. According to the scheme, large continuous thrust is achieved in the mode that the two linear motors are connected in parallel, the two motors connected in parallel are installed on the two faces of the bearing plate respectively, the magnetic attraction force between the motor coil and the motor magnetic plate is counteracted, mechanical deformation is reduced, and motion precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a parallel linear motor module. Background Art

[0002] At present, the continuous thrust of linear motor modules is small and the load-carrying capacity is weak. For applications that require greater thrust, a single linear motor module is difficult to meet the requirements. Linear motor modules are usually composed of a motor coil, a magnetic plate, a linear guide, a magnetic scale or a magnetic scale, a photoelectric sensor, etc. The motor coil and the magnetic plate constitute the power part of the module. The existing materials, winding methods and coil size limit the thrust of the linear motor. Under the existing technical conditions, it is difficult to increase the continuous force of a single linear motor. Therefore, the continuous force of the motor is mostly increased by increasing the number of motor coils. However, this method will increase the size of the linear motor module, which is not conducive to the needs of miniaturization design.

[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a parallel linear motor module to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a parallel linear motor module.

[0005] To achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a parallel linear motor module, including a machine frame and a carrying plate, the carrying plate can be slidably arranged in the machine frame through a linear guide rail assembly, a first motor magnetic plate is fixedly provided on the top side of the carrying plate, a second motor magnetic plate is fixedly provided on the bottom side of the carrying plate, a first motor coil corresponding to the first motor magnetic plate is fixedly provided on the inner side of the top plate of the machine frame, a second motor coil corresponding to the second motor magnetic plate is fixedly provided on the inner side of the bottom plate of the machine frame, a magnetic scale and a photoelectric sensor arranged along the sliding direction of the carrying plate are provided on the bottom side of the carrying plate, a reading head and a baffle are provided on the machine frame, the reading head and the magnetic scale are correspondingly arranged, and the photoelectric sensor and the baffle are correspondingly arranged; the machine frame is also provided with an electric brake, and the electric brake and the linear guide rail assembly are correspondingly arranged.

[0006] The preferred technical solution is: the machine frame is composed of a left plate, a right plate, a top plate and a bottom plate; the linear guide assembly is composed of a first linear guide, a first slider, a second linear guide and a second slider, the first linear guide is fixed on the left side of the supporting plate, the second linear guide is fixed on the right side of the supporting plate, the first slider is fixed on the inner side of the left plate and is slidably connected to the first linear guide, and the second slider is fixed on the inner side of the right plate and is slidably connected to the second linear guide.

[0007] The preferred technical solution is: the electric brake has two groups, and is respectively arranged corresponding to the first linear guide rail and the second linear guide rail.

[0008] The preferred technical solution is: a front end plate is provided at the front end of the carrier plate, a rear end plate is provided at the rear end of the carrier plate, a first buffer pad corresponding to the front end plate is provided at the front end of the frame, and a second buffer pad corresponding to the rear end plate is provided at the rear end of the frame.

[0009] The preferred technical solution is: the first motor coil and the second motor coil are both fixedly mounted on the machine frame through a cooling plate, a cooling pipeline is provided in the cooling plate, and a water inlet and a water outlet connecting the two ends of the cooling pipeline are provided on the cooling plate.

[0010] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0011] 1. This solution uses two linear motors in parallel to achieve greater continuous thrust.

[0012] 2. This solution adopts the method of fixing the motor coil and moving the magnetic plate, which can avoid the movement of the cable and avoid the use of drag chains, further saving installation space and making the entire module more compact. After fixing the motor coil, the motor coil can be cooled by the cooling plate, further improving the continuous thrust of the module.

[0013] 3. The two parallel motors in this solution are installed on the two sides of the bearing plate respectively, so that the magnetic attraction between the motor coil and the motor magnetic plate offsets each other, reducing mechanical deformation and improving movement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the parallel linear motor module involved in the utility model.

[0015] Figure 2 This is a schematic diagram of the interior of the parallel linear motor module involved in the utility model after part of the frame structure is removed. DETAILED DESCRIPTION

[0016] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0017] See also Figure 1-Figure 2. It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Example:

[0020] like Figure 1 to Figure 2As shown, according to an overall technical concept of the utility model, a parallel linear motor module is provided, including a machine frame 1 and a supporting plate 2, the supporting plate 2 can be slidably arranged in the machine frame 1 through a linear guide assembly, a first motor magnetic plate 31 is fixedly provided on the top side of the supporting plate 2, and a second motor magnetic plate (not shown) is fixedly provided on the bottom side of the supporting plate 2, a first motor coil 41 corresponding to the first motor magnetic plate 31 is fixedly provided on the inner side of the top plate of the machine frame 1, and a second motor coil (not shown) corresponding to the second motor magnetic plate is fixedly provided on the inner side of the bottom plate of the machine frame 1, a magnetic scale 51 and a photoelectric sensor 61 arranged along the sliding direction of the supporting plate 2 are provided on the bottom side of the supporting plate 2, a reading head 52 and a baffle 62 are provided on the machine frame 1, and the reading head 52 and the magnetic scale 51 are correspondingly arranged, and the reading head 52 is used to detect the magnetic field changes generated by the magnetic poles on the magnetic scale 51, and convert the magnetic field changes into digital signals to measure the position of the reading head 52 relative to the magnetic scale 51, thereby obtaining the movement displacement of the supporting plate 2. The photoelectric sensor 61 and the baffle 62 are correspondingly arranged; the frame 1 is also provided with an electric brake 7, and the electric brake 7 and the linear guide assembly are correspondingly arranged. The above structure increases the continuous thrust and load-carrying capacity of the linear motor module, and occupies a small installation space, meeting the requirements of miniaturization design.

[0021] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the utility model, the machine frame 1 is enclosed by a left side plate, a right side plate, a top plate and a bottom plate; the linear guide assembly is composed of a first linear guide 811, a first slider 812, a second linear guide 821 and a second slider 822. The first linear guide 811 is fixed on the left side of the carrier plate 2, and the second linear guide 821 is fixed on the right side of the carrier plate 2. The straightness and parallelism of the first linear guide 811 and the second linear guide 821 can be adjusted by using the steps on the carrier plate 2 to make the module run smoothly. The first slider 812 is fixed on the inner side of the left side plate and is slidably connected to the first linear guide 811, and the second slider 822 is fixed on the inner side of the right side plate and is slidably connected to the second linear guide 821.

[0022] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, the electric brake 7 has two groups, and is respectively disposed corresponding to the first linear guide rail 811 and the second linear guide rail 821 .

[0023] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the utility model, a front end plate 91 is provided at the front end of the carrier plate 2, a rear end plate 92 is provided at the rear end of the carrier plate 2, a first buffer pad 101 corresponding to the front end plate 91 is provided at the front end of the frame 1, and a second buffer pad 102 corresponding to the rear end plate 92 is provided at the rear end of the frame 1 to play a buffering role.

[0024] like Figure 1 to Figure 2As shown, in an exemplary embodiment of the present invention, the first motor coil 41 and the second motor coil are fixedly mounted on the machine frame 1 through a cooling plate 11, a cooling pipeline is provided in the cooling plate 11, and a water inlet 111 and a water outlet 112 connecting the two ends of the cooling pipeline are provided on the cooling plate 11.

[0025] Therefore, the utility model has the following advantages:

[0026] 1. This solution uses two linear motors in parallel to achieve greater continuous thrust.

[0027] 2. This solution adopts the method of fixing the motor coil and moving the magnetic plate, which can avoid the movement of the cable and avoid the use of drag chains, further saving installation space and making the entire module more compact. After fixing the motor coil, the motor coil can be cooled by the cooling plate, further improving the continuous thrust of the module.

[0028] 3. The two parallel motors in this solution are installed on the two sides of the bearing plate respectively, so that the magnetic attraction between the motor coil and the motor magnetic plate offsets each other, reducing mechanical deformation and improving movement accuracy.

[0029] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A parallel linear motor module, characterized in that: It includes a machine frame and a carrying plate, the carrying plate can be slidably arranged in the machine frame forward and backward through a linear guide rail assembly, a first motor magnetic plate is fixedly arranged on the top side of the carrying plate, a second motor magnetic plate is fixedly arranged on the bottom side of the carrying plate, a first motor coil corresponding to the first motor magnetic plate is fixedly arranged on the inner side of the top plate of the machine frame, a second motor coil corresponding to the second motor magnetic plate is fixedly arranged on the inner side of the bottom plate of the machine frame, a magnetic scale and a photoelectric sensor arranged along the sliding direction of the carrying plate are arranged on the bottom side of the carrying plate, a reading head and a baffle are arranged on the machine frame, the reading head and the magnetic scale are arranged correspondingly, and the photoelectric sensor and the baffle are arranged correspondingly; the machine frame is also provided with an electric brake, and the electric brake and the linear guide rail assembly are arranged correspondingly.

2. A parallel linear motor module according to claim 1, characterized in that: The machine frame is composed of a left plate, a right plate, a top plate and a bottom plate; the linear guide assembly is composed of a first linear guide, a first slider, a second linear guide and a second slider, the first linear guide is fixed on the left side of the bearing plate, the second linear guide is fixed on the right side of the bearing plate, the first slider is fixed on the inner side of the left plate and is slidably connected to the first linear guide, and the second slider is fixed on the inner side of the right plate and is slidably connected to the second linear guide.

3. A parallel linear motor module according to claim 2, characterized in that: The electric brake has two groups, and is respectively arranged corresponding to the first linear guide rail and the second linear guide rail.

4. The parallel linear motor module according to claim 1, characterized in that: The front end of the carrier plate is provided with a front end plate, the rear end of the carrier plate is provided with a rear end plate, the front end of the frame is provided with a first buffer pad corresponding to the front end plate, and the rear end of the frame is provided with a second buffer pad corresponding to the rear end plate.

5. The parallel linear motor module according to claim 1, characterized in that: The first motor coil and the second motor coil are both fixedly mounted on the machine frame through a cooling plate, a cooling pipeline is arranged in the cooling plate, and a water inlet and a water outlet communicating with two ends of the cooling pipeline are arranged on the cooling plate.

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