Pressing device for cutting silicon rod and silicon rod squaring machine

Abstract

The present application relates to the technical field of pressing device, especially to a kind of silicon rod cutting pressing device and silicon rod squaring machine, including vertical orientation straight line guide rail, support vertically slidingly connected on straight line guide rail, and limiting portion fixed on straight line guide rail, when the direction of the force that makes support slide is not parallel with the extension direction of straight line guide rail, floating pin can radially float, and make elastic coupling deforms to store force, its beneficial effect is since the existence of floating assembly in the present application, when straight line guide rail appears dislocation, since pressure head assembly is pressed on silicon rod, therefore floating pin will radially float, and then compensate the radial floating amount of straight line guide rail, effectively ensure the stability of pressing assembly after pressing silicon rod;Floating pin can radially elastically float, and axial position remains fixed, and then limit the floating track of floating pin well, ensure the stability of pressure head assembly when pressing silicon rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressing devices, in particular to a pressing device for cutting silicon rods and a silicon rod squaring machine. BACKGROUND

[0002] When the silicon rod is subjected to squaring operation, the silicon rod needs to be axially pressed to maintain the stability of the silicon rod during the squaring process.

[0003] In the prior art, the lower end of the silicon rod is supported on the base, and the upper end is pressed by the pressing device integrated on the cutting head. The pressing device relies on the self-weight to press the silicon rod and is connected to the cutting head through vertical sliding of the linear guide. When the cutting head feeds downward, the pressing device can press the silicon rod. Since the downward feeding direction of the cutting head and the sliding direction defined by the linear guide are difficult to be deviated, when the extension direction of the linear guide is not parallel to the feeding direction of the cutting head during cutting, the cutting head will cause the pressing device to slide transversely, that is, radially, and further cause the radial displacement of the pressing assembly, which is easy to press the silicon rod off-center and reduce the cutting accuracy of the silicon rod. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present application provides a pressing device for cutting silicon rods, which solves the technical problem that when the extension direction of the linear guide is not parallel to the feeding direction of the cutting head during cutting, the cutting head will cause the pressing device to slide transversely, and further cause the radial displacement of the pressing assembly, which is easy to press the silicon rod off-center and reduce the cutting accuracy of the silicon rod.

[0006] (II) Technical solutions

[0007] In order to achieve the above-mentioned purposes, the main technical solutions adopted by the present application include:

[0008] In a first aspect, the present application provides a pressing device for cutting silicon rods, comprising a vertical linear guide, a support vertically and slidingly connected to the linear guide, and a limiting part fixed to the linear guide, the limiting part being capable of limiting the upper limit position of the support relative to the linear guide and bearing the weight of the pressing device when the pressing device moves radially; further comprising a floating assembly, a pressing head assembly, and an axial support assembly, the floating assembly comprising an elastic coupling shaft with a vertical axis, a floating pin, and a support sleeve, the support sleeve being fixedly connected to the linear guide, the elastic coupling shaft connecting the support sleeve and the floating pin to support the top end of the floating pin in the inner cavity of the support sleeve, the lower end of the floating pin extending out of the inner cavity of the support sleeve and being connected to the pressing head assembly; the axial support assembly being capable of axially supporting the floating pin in the inner cavity of the support sleeve; when the direction of the sliding force of the support is not parallel to the extension direction of the linear guide, the floating pin can radially float and deform the elastic coupling shaft to store energy.

[0009] In one technical solution of the present application, the bottom of the support sleeve is an open structure and detachably connected with a bottom cover, the floating pin penetrates through the bottom cover and is in gap cooperation with the bottom cover; the axial support assembly comprises a thrust assembly, the thrust assembly comprising a retainer and a plurality of balls, the retainer being formed with ball grooves corresponding to the balls; the retainer is of elastic material and fixed to the floating pin; the balls and the ball grooves are in conformity, when the floating pin radially floats, the balls roll, the sidewalls of the ball grooves rub against the balls, and the retainer is deformed to store energy, thereby providing a restoring force to the floating pin.

[0010] In one technical solution of the present application, the middle part of the floating pin extends radially to form a flange part, the flange part being located above the bottom cover; the thrust assembly is arranged as two groups located on the axial two sides of the flange part; the balls of one group of the thrust assembly abut against the upper wall of the flange part and the inner wall of the support sleeve along the axial two sides of the floating pin, respectively, and the balls of the other group of the thrust assembly abut against the upper wall of the flange part and the top wall of the bottom cover along the axial two sides of the floating pin, respectively.

[0011] In one technical solution of the present application, the pressing device further comprises a joint, the pressing head assembly being connected to the bottom cover through the joint, and the bottom cover and the joint having an axial allowance gap therebetween; the floating assembly further comprises an elastic pin, the elastic pin being vertically oriented and having two ends connected to the joint and the bottom cover, respectively; when the floating pin radially floats, the elastic pin deforms to store energy; the elastic pin is located in the axial allowance gap between the joint and the bottom cover; the elastic pin is circumferentially distributed along the axial direction of the joint.

[0012] In one technical solution of the present application, the pressure head assembly comprises a pressure head and an elastic assembly, the pressure head is connected to the connector through the elastic assembly; the elastic assembly comprises a sliding sleeve, a spring and a connecting flange, the connecting flange is fixedly connected to the connector, the sliding sleeve is vertically slidably connected to the connecting flange, the spring is loaded at two ends to the connector and the sliding sleeve respectively to keep applying elastic force to the sliding sleeve away from the connector, and the pressure head is fixedly connected to the sliding sleeve; the pressure head assembly further comprises a transition plate, the transition plate is fixedly connected to the sliding sleeve and the pressure head; and the connecting flange is fixedly connected to the connector through a front connecting plate.

[0013] In one technical solution of the present application, the upper part of the connecting flange penetrates through the front connecting plate, a first column cavity is formed in the connecting flange, a second column cavity is formed in the sliding sleeve, the sliding sleeve is vertically slidably connected in the first column cavity, and the spring is located in the first column cavity and the second column cavity.

[0014] In one technical solution of the present application, the floating assembly further comprises a sealing ring, the sealing ring is arranged in the radial gap between the floating pin and the bottom cover and abuts against both, and when the floating pin radially floats, the sealing ring deforms to accumulate force.

[0015] In one technical solution of the present application, a counterweight component is fixedly connected to the linear guide rail and leaves the position of the pressing area of the pressure head assembly.

[0016] In one technical solution of the present application, the counterweight component is connected to the top of the linear guide rail, and the center of gravity of the counterweight component coincides with the axis of the linear guide rail.

[0017] In the second aspect, the present application provides a silicon rod squaring machine comprising the above-mentioned silicon rod cutting pressing device, further comprising a cutting head, the cutting head can vertically slide and horizontally slide, and the support is supported on the cutting head.

[0018] (Three) beneficial effects

[0019] The silicon rod cutting pressing device of the present application can press the silicon rod by its own weight, and the pressing device can be connected to the moving seat of the cutting head of the silicon rod through the support, when the cutting head moves horizontally, the linear guide rail slides relative to the support to the lower limit position, so that the support supports the limiting part and carries the weight of the pressing device. When the pressing device moves to the cutting position of the silicon rod with the cutting head, the cutting head feeds downward, and then, when the pressure head assembly contacts and presses the silicon rod, the silicon rod cutting operation can be performed.

[0020] Since the downward feeding direction of the cutting head and the sliding direction of the support defined by the linear guide rail are difficult to deviate, when the extension direction of the linear guide rail is not parallel to the feeding direction of the cutting head during cutting, the cutting head will cause the pressing device to slide horizontally, that is, radially, and then the pressing assembly will be radially dislocated, which is easy to press the silicon rod off-center.

[0021] However, due to the presence of the floating assembly in the application, after the linear guide rail appears to be dislocated, the pressure head assembly is pressed on the silicon rod, the floating pin will float radially, thereby compensating for the radial floating amount of the linear guide rail, effectively ensuring the stability of the pressure head assembly after pressing the silicon rod.

[0022] Since the support sleeve is fixedly connected with the linear guide rail, and the pressure head assembly is supported in the inner cavity of the support sleeve through the floating pin and the elastic coupling, the elastic coupling provides the floating pin with a radial floating amount and a radial reset force, which cooperates with the support of the axial support assembly to ensure the axial stability of the floating pin. In other words, the floating pin can elastically float radially and the axial position remains fixed, thereby well limiting the floating track of the floating pin and ensuring the stability of the pressure head assembly when pressing the silicon rod.

[0023] In summary, the pressure device for cutting silicon rod provides stable and reliable pressure support for the cutting process of the silicon rod, which helps to improve the cutting precision and efficiency of the silicon rod. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic view of the shaft side structure of the pressure device for cutting silicon rod of the application;

[0025] Figure 2 is a schematic view of the front structure of the pressure device for cutting silicon rod of the application;

[0026] Figure 3 is a schematic view of the cross-sectional structure of A-A plane in the application; Figure 2

[0027] Figure 4 is a schematic view of the local enlarged structure of X in the application. Figure 3

Explanation of reference signs

[0028] 1. Linear guide rail;

[0029] 2. Support;

[0030] 3. Limiting part;

[0031] 4. Floating assembly; 41. Elastic coupling; 42. Floating pin; 420. Flange part; 43. Support sleeve; 44. Bottom cover; 45. Elastic pin; 46. Sealing ring;

[0032] 5. Pressure head assembly; 51. Pressure head; 52. Elastic assembly; 521. Sliding sleeve; 522. Spring; 523. Connection flange; 53. Transition plate; 54. Front connecting plate;

[0033] 5. Pressure head assembly; 51. Pressure head; 52. Elastic assembly; 521. Sliding sleeve; 522. Spring; 523. Connection flange; 53. Transition plate; 54. Front connecting plate;

[0034] ​6. Axial support assembly; 61. Thrust assembly; 611. Cage; 612. Ball bearings;

[0035] 7. Connector;

[0036] 8. Counterweight components. Detailed Implementation

[0037] To better explain and facilitate understanding of this invention, the following description is provided in conjunction with the appendix. Figures 1-4 The present invention will be described in detail through specific embodiments. In this document, directional terms such as "upper" and "lower" are used interchangeably with other directional terms. Figure 3 The orientation is used as a reference.

[0038] Example 1:

[0039] Reference Figures 1-4 This invention provides a clamping device for cutting silicon rods. The clamping device clamps the silicon rod by its own weight. The clamping device includes a vertically oriented linear guide rail 1, a support 2 vertically slidably connected to the linear guide rail 1, and a limiting part 3 fixed to the linear guide rail 1. The limiting part 3 can limit the extreme position of the support 2 relative to the linear guide rail 1 and bear the weight of the clamping device when it moves radially. It also includes a floating component 4 and a pressure head assembly 5. The floating component 4 includes a vertically oriented elastic coupling 41, a floating pin 42, and a support sleeve 43, which supports... The sleeve 43 is fixedly connected to the linear guide rail 1. An elastic coupling 41 connects the support sleeve 43 and the floating pin 42, supporting the top end of the floating pin 42 within the inner cavity of the support sleeve 43. The lower end of the floating pin 42 extends out of the inner cavity of the support sleeve 43 and connects to the pressure head assembly 5. The middle portion of the floating pin 42 extends radially to form a flange portion 420. The floating assembly 4 also includes an axial support assembly 6 to axially support the floating pin 42 within the inner cavity of the support sleeve 43. When the direction of the force causing the support 2 to slide is not parallel to the extension direction of the linear guide rail 1, the floating pin 42 can float radially. A clamping area for the silicon rod is formed below the pressure head assembly 5.

[0040] In this embodiment, the clamping device can clamp the silicon rod by its own weight, and the clamping device can be connected to the moving seat of the silicon rod cutting head via the support 2. When the cutting head moves laterally, the linear guide 1 slides to its lower limit position relative to the support 2, so that the support 2 supports the limiting part 3 and thus bears the weight of the clamping device. After the clamping device moves with the cutting head to the cutting position of the silicon rod, the cutting head feeds downward, and then, after the pressure head assembly 5 contacts the silicon rod and clamps the silicon rod, the silicon rod cutting operation can be performed.

[0041] Since the downward feeding direction of the cutting head is difficult to be parallel to the sliding direction of the support 2 defined by the linear guide 1, when the extending direction of the linear guide 1 is not parallel to the feeding direction of the cutting head during the cutting, the cutting head will cause the pressing device to slide laterally, that is, radially, and further cause the pressing assembly to dislocate radially, which is easy to press the silicon rod out of position.

[0042] However, due to the presence of the floating assembly 4 in the embodiment, when the linear guide 1 dislocates, the floating pin 42 will float radially because the pressing head assembly 5 is pressed on the silicon rod, which effectively ensures the stability of the pressing assembly after pressing the silicon rod.

[0043] Specifically, since the support sleeve 43 is fixedly connected with the linear guide 1, and the pressing head assembly 5 is supported in the inner cavity of the support sleeve 43 through the floating pin 42 and the elastic coupling 41, the elastic coupling 41 provides the floating pin 42 with a radial floating amount and a radial reset force, which, in combination with the support of the axial support assembly 6, ensures the axial stability of the floating pin 42. In other words, the floating pin 42 can elastically float radially while keeping the axial position fixed, which effectively limits the floating track of the floating pin 42 and ensures the stability of the pressing head assembly 5 when pressing the silicon rod.

[0044] In summary, the pressing device for cutting silicon rod provides stable and reliable pressing support for the cutting process of the silicon rod, which helps to improve the cutting precision and efficiency of the silicon rod.

[0045] Specifically, the elastic coupling 41 includes an elastic part with a vertical axial orientation, such as a coil spring or an elastic pin, which can provide the floating pin 42 with a radial floating amount and a reset elastic force, and the two ends of the elastic part are connected with connecting heads.

[0046] More specifically, the elastic coupling 41 is located between and connected with the support sleeve 43 and the floating pin 42, forming a vertically extending structure similar to an axial connection, and the top inner cavity of the support sleeve 43 and the top end of the floating pin 42 correspond to two "shafts". When the floating pin 42 floats radially relative to the support sleeve 43, the elastic part of the elastic coupling 41 elastically deforms to provide the floating pin 42 with a reverse reset elastic force. Under the connection of the elastic coupling 41, the floating pin 42 and the support sleeve 43 are elastically connected radially, and the elastic coupling 41 can also suspend the floating pin 42 in the support sleeve 43.

[0047] Taking the elastic coupling 41 of the coil spring as an example, the connecting heads at both ends of the elastic coupling 41 are fixedly connected with the top of the support sleeve 43 and the floating pin 42 through bolts, so that the floating pin 42 is hung in the inner cavity of the support sleeve 43, and the elastic coupling 41 also stably and reliably provides the floating pin 42 with a radial floating amount and a radial reset force under the action of the coil spring.

[0048] Embodiment 2:

[0049] With reference to Figures 1-4 In addition to having all the technical solutions of any of the above embodiments, the embodiments of the present application further have the following technical solutions:

[0050] The bottom of the support sleeve 43 is an open structure and detachably connected with a bottom cover 44, and the floating pin 42 penetrates through the bottom cover 44 and gap-fits with the bottom cover 44.

[0051] The bottom cover 44 is used to close the lower opening of the support sleeve 43, and the design of the bottom cover 44 facilitates the assembly of the floating pin 42, the elastic coupling 41, and the thrust assembly 61 and the like, thereby improving the assembly and maintenance efficiency of the compression device.

[0052] The axial support assembly 6 includes a thrust assembly 61, and the thrust assembly 61 includes a retainer 611 and a plurality of balls 612.

[0053] The retainer 611 is made of elastic material and is fixed on the floating pin 42; when the floating pin 42 radially floats, the retainer 611 deforms to store energy to provide a reset force to the floating pin 42; the balls 612 and the ball grooves are matched, and when the balls 612 roll, the side wall of the ball groove rubs against the balls 612, thereby deforming the retainer 611 to store energy.

[0054] In this embodiment, the retainer 611 is made of elastic material and can deform when subjected to external force and restore to its original state after the external force disappears. This feature allows the retainer 611 to deform and store energy when the floating pin 42 radially floats. The retainer 611 is fixed on the floating pin 42, which ensures that when the floating pin 42 moves, the retainer 611 also moves, thereby moving the balls 612 on the retainer 611.

[0055] When the ball 612 rolls in the ball groove, the side wall of the ball groove will rub against the ball 612. This friction not only helps the ball 612 to roll stably in the ball groove, providing certain damping for the radial floating of the floating pin 42, but also causes the retainer 611 to deform and store energy under the action of the friction. Because the ball groove is part of the retainer 611, the friction between the ball 612 and the side wall of the ball groove actually exerts a force on the retainer 611, causing it to deform.

[0056] Due to the friction between the ball 612 and the side wall of the ball groove, the retainer 611 deforms and stores energy, and the elastic force of the deformed retainer 611 can work together with the elastic force of the elastic coupling 41 to provide a restoring force for the floating pin 42. This combined form of restoring force can change the action curve of the restoring force, improve the linearity and stability of the restoring force, and further improve the stability of the pressure head assembly 5.

[0057] Embodiment 3:

[0058] With reference to Figures 1-4 In addition to having all the technical solutions of the above embodiments, the embodiments of the present application further have the following technical solutions:

[0059] The middle part of the floating pin 42 extends radially to form a flange portion 420, which is located above the bottom cover 44; the thrust assembly 61 is arranged as two groups located on the axial sides of the flange portion 420; the balls 612 of one group of thrust assemblies 61 abut the upper wall of the flange portion 420 and the inner wall of the support sleeve 43 along the axial sides of the floating pin 42, respectively, and the balls 612 of the other group of thrust assemblies 61 abut the upper wall of the flange portion 420 and the top wall of the bottom cover 44 along the axial sides of the floating pin 42, respectively.

[0060] In this embodiment, the floating pin 42 is supported in the inner cavity of the support sleeve 43 by the two groups of thrust assemblies 61, which not only provide axial support but also allow the floating pin 42 to float radially, thereby efficiently adapting to the working conditions of the floating pin 42.

[0061] Embodiment 4:

[0062] With reference to Figures 1-4 In addition to having all the technical solutions of any of the above embodiments, the embodiments of the present application further have the following technical solutions:

[0063] The pressing device further comprises a joint 7, the pressure head assembly 5 is connected to the bottom cover 44 through the joint 7, and there is an axial clearance between the bottom cover 44 and the joint 7; the floating assembly 4 further comprises an elastic pin 45, which is vertically oriented and has two ends connected to the joint 7 and the bottom cover 44, respectively; the elastic pin 45 is located in the axial clearance between the joint 7 and the bottom cover 44, and the elastic pin 45 is circumferentially uniformly distributed along the axial direction of the joint 7.

[0064] In the embodiment, the existence of the axial allowance gap can avoid the collision between the joint 7 and the bottom cover 44 when the floating pin 42 radially floats, and ensure that the floating pin 42 has sufficient radial floating amount.

[0065] The elastic pin 45 can connect the joint 7 and the bottom cover 44 on the one hand, and avoid the rotation of the joint 7 relative to the bottom cover 44, thereby avoiding the rotation of the pressure head assembly 5 relative to the support sleeve 43. On the other hand, when the floating pin 42 radially floats, the elastic pin 45 can also be deformed to store force and provide a moving restoring force, which, in cooperation with other elastic restoring members, can further improve the stability of the pressure head assembly 5.

[0066] Embodiment 5:

[0067] With reference to Figures 1-4 In addition to having all the technical solutions of any of the above embodiments, the embodiments of the present application further have the following technical solutions:

[0068] The floating assembly 4 further comprises a sealing ring 46 arranged in the radial gap between the floating pin 42 and the bottom cover 44 and abutting against the gap. On the one hand, the sealing ring 46 can seal the gap, thereby closing the inner cavity of the support sleeve 43. On the other hand, when the floating pin 42 radially floats, the sealing ring 46 can also store elastic force to provide a certain restoring force, which, in cooperation with other elastic restoring members, can further improve the stability of the pressure head assembly 5.

[0069] When the embodiment further comprises the elastic coupling 41, the elastic material retainer 611, and the elastic pin 45, the pressure head assembly 5 of the pressing device has four elastic restoring forces when it radially floats, thereby optimizing the elastic force curve and further improving the stability of the pressure head assembly 5 after pressing the silicon rod.

[0070] Embodiment 6:

[0071] With reference to Figures 1-4 In addition to having all the technical solutions of any of the above embodiments, the embodiments of the present application further have the following technical solutions:

[0072] The pressing device further comprises a counterweight component 8 fixedly connected to the linear guide rail 1 and leaving the position of the pressing area of the pressure head assembly 5. The counterweight component 8 is connected to the top of the linear guide rail 1, and the center of gravity of the counterweight component 8 coincides with the axis of the linear guide rail 1.

[0073] The setting of the counterweight component 8 can increase the weight of the pressing device, thereby improving the stability and reliability of the pressing device in pressing the silicon rod. The setting of the counterweight component 8 at the top of the linear guide rail 1 can make the layout more reasonable and ensure the stability of the center of gravity of the pressing device, thereby further improving the stability and reliability of the pressing device in pressing the silicon rod.

[0074] Embodiment 7:

[0075] With reference to Figures 1-4 In addition to the above technical solutions of any one of the embodiments, the embodiments of the present application further have the following technical solutions:

[0076] The pressure head assembly 5 includes a pressure head 51 and an elastic assembly 52. The pressure head 51 is connected to the connector 7 through the elastic assembly 52. The elastic assembly 52 includes a sliding sleeve 521, a spring 522, and a connecting flange 523. The connecting flange 523 is fixedly connected to the connector 7. The sliding sleeve 521 is vertically slidably connected to the connecting flange 523. The spring 522 has two ends respectively connected to the connector 7 and the sliding sleeve 521 to keep applying an elastic force to the sliding sleeve 521 away from the connector 7. The pressure head 51 is fixedly connected to the sliding sleeve 521.

[0077] The pressure head assembly 5 further includes a transition plate 53. The transition plate 53 is fixedly connected to the sliding sleeve 521 and the pressure head 51. That is, the pressure head 51 and the sliding sleeve 521 are connected through the transition plate 53.

[0078] The pressure head assembly 5 further includes a front connecting plate 54. The connecting flange 523 is fixedly connected to the connector 7 through the front connecting plate 54.

[0079] In this embodiment, the elastic assembly 52 can ensure that the pressure head 51 always contacts the silicon rod during the cutting process of the silicon rod, thereby improving the pressing reliability and stability of the silicon rod.

[0080] The pressure head 51 is the part of the assembly that directly contacts the silicon rod and is responsible for applying pressure to keep the silicon rod stable during the cutting process. The sliding sleeve 521 is vertically slidably connected to the connecting flange 523, allowing the pressure head 51 to have a certain range of movement in the vertical direction. The spring 522 has two ends respectively connected to the connector 7 and the sliding sleeve 521, providing an elastic force to the sliding sleeve 521 and the pressure head 51 connected thereto away from the connector 7. This design allows the pressure head 51 to automatically adjust according to the height or position changes of the silicon rod, ensuring that it always maintains contact with the silicon rod.

[0081] The connecting flange 523 is the part that fixedly connects the connector 7, through which the entire elastic assembly 52 is connected to the connector 7. The transition plate 53 fixedly connects the sliding sleeve 521 and the pressure head 51, serving as a transition and support to ensure the stable and reliable connection between the pressure head 51 and the sliding sleeve 521.

[0082] The front connecting plate 54 is used to fixedly connect the connecting flange 523 and the connector 7, ensuring the stability of the entire pressure head assembly 5.

[0083] In the cutting process of the silicon rod, the traditional fixed pressure head 51 can not be in contact with the silicon rod at all times. In the embodiment, the pressure head assembly 5 is designed through the elastic assembly 52, and the elastic force of the spring 522 enables the pressure head 51 to automatically adjust according to the height or position change of the silicon rod, thereby ensuring that the pressure head 51 is in contact with the silicon rod at all times.

[0084] Since the pressure head 51 can be in contact with the silicon rod at all times, the pressing reliability of the silicon rod in the cutting process is improved.

[0085] The stable pressing force helps to reduce the vibration of the silicon rod in the cutting process, thereby improving the stability and precision of the cutting.

[0086] In summary, the pressure head assembly 5 in the embodiment effectively improves the pressing reliability and stability of the silicon rod in the cutting process through the unique design of the elastic assembly 52, thereby providing a strong guarantee for high-quality silicon rod cutting.

[0087] The upper part of the connecting flange 523 penetrates the front connecting plate 54, the first column cavity is formed in the connecting flange 523, the second column cavity is formed in the sliding sleeve 521, the sliding sleeve 521 is vertically and slidingly connected in the first column cavity, and the spring 522 is located in the first column cavity and the second column cavity.

[0088] The vertical sliding connection of the sliding sleeve 521 in the first column cavity ensures that the pressure head 51 can automatically adjust according to the height or position change of the silicon rod. By penetrating the connecting flange 523 through the front connecting plate 54, the axial space occupation of the pressure head assembly 5 can be reduced, and the compactness of the structure can be improved.

[0089] The above-mentioned components of the pressure head assembly 5 are coaxially arranged to ensure the pressing stability.

[0090] Embodiment 8:

[0091] Figures 1-4 In addition to providing a silicon rod square root machine including the pressing device for cutting a silicon rod in any of the above embodiments, the embodiment of the present application also includes a cutting head that can vertically and horizontally slide, and the support 2 is supported on the cutting head. Therefore, the silicon rod square root machine includes all the beneficial effects of the pressing device for cutting a silicon rod in any of the above embodiments, and to avoid repetition, it will not be described in detail here.

[0092] It can be understood that the above-mentioned embodiments 1-8 can be freely combined to form other embodiments of the present application, except for the parts that conflict with each other.

[0093] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0094] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0096] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent to the process, article or equipment / device.

[0097] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without departing from the principles of the present application, and the technical scheme after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A pressing device for cutting a silicon rod, characterized by comprising: The vertical linear guide rail (1), the support (2) vertically slidingly connected to the linear guide rail (1), and the limiting part (3) fixed to the linear guide rail (1) are provided, the limiting part (3) can limit the limit position of the support (2) relative to the linear guide rail (1) and bear the weight of the compression device when the compression device moves radially; The floating assembly (4), the pressure head assembly (5) and the axial support assembly (6) are further provided, the floating assembly (4) comprises the elastic shaft coupling (41) with the vertical axis, the floating pin (42) and the support sleeve (43), the support sleeve (43) is fixed to the linear guide rail (1), the elastic shaft coupling (41) connects the support sleeve (43) and the floating pin (42) to support the top end of the floating pin (42) in the inner cavity of the support sleeve (43), the lower end of the floating pin (42) is connected to the pressure head assembly (5), and the pressure head assembly (5) forms the compression area of the silicon rod below; the axial support assembly (6) can axially support the floating pin (42) in the inner cavity of the support sleeve (43). When the direction of the sliding force of the support (2) is not parallel to the extension direction of the linear guide rail (1), the floating pin (42) can radially float and deform the elastic shaft coupling (41) to store energy. The bottom of the support sleeve (43) is an open structure and detachably connected with the bottom cover (44), the floating pin (42) penetrates through the bottom cover (44) and is in clearance fit with the bottom cover (44). The compression device further comprises the joint (7), the pressure head assembly (5) is connected to the bottom cover (44) through the joint (7), and the bottom cover (44) and the joint (7) have an axial allowance gap. The floating assembly (4) further comprises the elastic pin (45), the elastic pin (45) is vertically oriented and connected to the joint (7) and the bottom cover (44) at both ends; when the floating pin (42) radially floats, the elastic pin (45) deforms to store energy. The elastic pin (45) is located in the axial allowance gap between the joint (7) and the bottom cover (44). The elastic pin (45) is circumferentially uniformly distributed along the axial direction of the joint (7).

2. The pressing device for cutting a silicon rod according to claim 1, wherein The axial support assembly (6) comprises the thrust assembly (61), the thrust assembly (61) comprises the retainer (611) and a plurality of rolling balls (612), and the retainer (611) forms the rolling ball groove corresponding to the rolling ball (612) in the retainer (611). The retainer (611) is made of elastic material, the retainer (611) is fixed to the floating pin (42), the rolling ball (612) and the rolling ball groove are matched, when the floating pin (42) radially floats, the rolling ball (612) rolls, the side wall of the rolling ball groove rubs against the rolling ball (612), and then the retainer (611) deforms to store energy to provide a reset force to the floating pin (42).

3. The pressing device for cutting a silicon rod according to claim 2, wherein The middle part of the floating pin (42) extends radially to form a flange part (420), which is located above the bottom cover (44); The thrust assembly (61) is arranged on both sides of the flange part (420) in the axial direction; The rolling balls (612) of one set of the thrust assembly (61) abut against the upper wall of the flange part (420) and the inner wall of the support sleeve (43) on both sides of the floating pin (42) in the axial direction, and the rolling balls (612) of the other set of the thrust assembly (61) abut against the upper wall of the flange part (420) and the top wall of the bottom cover (44) on both sides of the floating pin (42) in the axial direction.

4. The pressing device for cutting a silicon rod according to claim 2, wherein The pressure head assembly (5) comprises a pressure head (51) and an elastic assembly (52), and the pressure head (51) is connected to the joint (7) through the elastic assembly (52); The elastic assembly (52) comprises a sliding sleeve (521), a spring (522) and a connecting flange (523), the connecting flange (523) is fixedly connected to the joint (7), the sliding sleeve (521) is vertically and slidingly connected to the connecting flange (523), and the two ends of the spring (522) are loaded on the joint (7) and the sliding sleeve (521) respectively to keep applying elastic force to the sliding sleeve (521) away from the joint (7), and the pressure head (51) is fixedly connected to the sliding sleeve (521); The pressure head assembly (5) further comprises a transition plate (53), and the pressure head (51) and the sliding sleeve (521) are connected through the transition plate (53); The pressure head assembly (5) further comprises a front connecting plate (54), and the connecting flange (523) is fixedly connected to the joint (7) through the front connecting plate (54).

5. The pressing device for cutting a silicon rod according to claim 4, wherein The upper part of the connecting flange (523) penetrates through the front connecting plate (54), a first column cavity is formed in the connecting flange (523), a second column cavity is formed in the sliding sleeve (521), the sliding sleeve (521) is vertically and slidingly connected in the first column cavity, and the spring (522) is located in the first column cavity and the second column cavity.

6. The pressing device for cutting a silicon rod according to claim 1, wherein The floating assembly (4) further comprises a sealing ring (46), which is arranged in the radial gap between the floating pin (42) and the bottom cover (44) and abuts against both, and when the floating pin (42) radially floats, the sealing ring (46) deforms to store force.

7. The pressing device for cutting a silicon rod according to claim 1, wherein Further comprising a counterweight component (8), which is fixedly connected to the linear guide rail (1) and leaves the position of the pressing area of the pressure head assembly (5).

8. The pressing device for cutting a silicon rod according to claim 7, wherein The counterweight component (8) is connected to the top of the linear guide rail (1), and the center of gravity of the counterweight component (8) coincides with the axis of the linear guide rail (1).

9. A silicon bar squaring machine characterized by, The pressure device comprises the pressure device for cutting silicon rod according to any one of claims 1-8, and further comprises a cutting head, wherein the cutting head can vertically slide and horizontally slide, and the support (2) is supported on the cutting head.

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