A cutting fixture and cutting equipment for cutting rubber sealing strips

Abstract

A cutting fixture and cutting equipment, belonging to the technical field of cutting tools. It includes a limiting device, including a limiting channel adapted to the cross-sectional shape of a rubber sealing strip, and the rubber sealing strip is driven to slide in the limiting channel; a clamping device, located on the extension path of the limiting channel, used to clamp the rubber sealing strip; the clamping device is driven to move along the length direction of the rubber sealing strip. The limiting channel of the present invention has a limiting effect on the entire rubber sealing strip, and the rubber sealing strip moves under the drive of the clamping device. Under the limiting effect of the limiting channel and the stretching effect of the clamping device, the rubber sealing strip remains in a non-relaxed state. Therefore, the present invention can avoid the situation in which the cutting accuracy is affected by shaking during the cutting process; at the same time, the present invention can insert and extend the end of the rubber sealing strip into the limiting channel, so the length of the limiting channel is shorter, and the insertion and removal of the rubber sealing strip after cutting are simpler.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting tools, and in particular to a cutting fixture and a cutting device. Background Art

[0002] Rubber sealing strips are strip-shaped rubber sealing products, which are used in railway locomotives, automobiles, airplanes, high-rise buildings, refrigerators and various industrial parts. They are a kind of rubber sealing element that prevents external dust, air, water, etc. from entering the system. Rubber sealing strips mainly use the elasticity of the lips, cavities, flanges and other parts in the main body structure and the contact pressure generated by the surface of the assembled coupling parts (glass, metal parts, etc.) to play a sealing and decorative role. The structure of existing rubber sealing strips is often not completely compatible with the coupling parts to be assembled, and cannot be directly installed. Before installation, the rubber sealing strips need to be cut to remove the part of the main body that interferes with the coupling parts, so that the rubber sealing strips and the coupling parts are compatible.

[0003] In the prior art, the portion of the rubber sealing strip to be cut is a strip structure with a certain length along the length direction of the rubber sealing strip, and the portion to be cut is located at the edge of the rubber sealing strip, that is, the remaining portion after cutting will form a strip groove. When cutting, a cutting fixture is needed to clamp the rubber sealing strip. The cutting fixture in the prior art is a base with a slot, the shape of which is adapted to the remaining portion of the rubber sealing strip, and the length is consistent with the length of the portion to be cut. When in use, the remaining portion of the rubber sealing strip needs to be completely inserted into the chamber so that the portion to be cut is exposed, and then a tool is used to cut along the surface of the base to separate the portion to be cut from the remaining portion. However, this fixture requires that the rubber sealing strip be partially inserted into a chamber whose length is consistent with the length of the portion to be cut. Due to the long length of the chamber, there is a problem of difficulty in insertion and removal operations. In addition, since part of the structure of the rubber sealing strip is exposed outside the chamber, shaking will occur during the cutting process, thereby affecting the cutting accuracy. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the cutting clamp in the prior art needs to insert the rubber sealing strip into a slot whose length is consistent with the length of the part to be cut, which makes the insertion and removal operations more difficult, and when using the clamp during the cutting process, the part of the rubber sealing strip exposed outside the chamber will shake, thereby affecting the cutting accuracy, thereby providing a cutting clamp and cutting equipment.

[0005] The present invention provides the following technical solutions:

[0006] A cutting fixture, comprising:

[0007] The limiting device comprises a limiting channel adapted to the cross-sectional shape of the rubber sealing strip, wherein the rubber sealing strip is driven to slide in the limiting channel;

[0008] The clamping device is located on the extension path of the limiting channel, and is used to clamp the rubber sealing strip; the clamping device is driven to move along the length direction of the rubber sealing strip.

[0009] Optionally, the limiting device further includes:

[0010] The support portion is located on the extension path of the limiting channel and is used to be inserted into the groove body of the rubber sealing strip in the length direction thereof, and the support portion is located on the side where the portion of the rubber sealing strip to be cut is located.

[0011] Optionally, the support portion includes:

[0012] The roller has a flange matched with the groove shape in the length direction of the rubber sealing strip, and the roller is rotatably arranged in the groove.

[0013] Optionally, it further comprises: a moving device connected to the clamping device and driving the clamping device to move along the length direction of the rubber sealing strip.

[0014] Optionally, it also includes: a detection device for detecting whether the rubber sealing strip extends into the clamping device, the detection device is communicatively connected to the clamping device to control the clamping device to clamp the rubber sealing strip, and the detection device is communicatively connected to the moving device to control the moving device to drive the clamping device to move along the length direction of the rubber sealing strip.

[0015] Optionally, the detection device comprises:

[0016] A position detection sensor, arranged on the moving device, for detecting whether the rubber sealing strip extends into the clamping device;

[0017] A triggering member, movably connected to the moving device, wherein the triggering member is pushed by the rubber sealing strip to move toward the position detection sensor;

[0018] Furthermore, the position detection sensor is located on a side of the trigger component away from the rubber sealing strip.

[0019] Optionally, the detection device further includes:

[0020] An elastic member is arranged on the moving device, and is used for pushing the trigger member to reset when the rubber sealing strip is away from the trigger member.

[0021] Optionally, the clamping device clamps the remaining portion of the rubber sealing strip.

[0022] A cutting device, comprising:

[0023] Any cutting fixture as above.

[0024] Optionally, it also includes:

[0025] A cutter, adapted to cut the rubber sealing strip along the length direction of the rubber sealing strip;

[0026] The punching knife is suitable for cutting the rubber sealing strip along the radial direction of the rubber sealing strip.

[0027] Optionally, the end of the scratching knife is located on a side of the limiting channel facing the clamping device, and the blade of the scratching knife is arranged toward the limiting channel.

[0028] Optionally, the support portion of the limiting device is located at an exit position of the limiting channel; and the scratching knife is located in a vertical direction of the support portion and close to the support portion.

[0029] Optionally, a driving device for driving the punching knife is also included, which includes:

[0030] A pushing portion, arranged perpendicular to the moving direction of the punching knife;

[0031] A mounting seat, used for mounting the punch;

[0032] The pushing portion is provided with a first pushing surface for pushing the mounting seat to move in a direction toward the rubber sealing strip, and a second pushing surface for pushing the mounting seat to move in a direction away from the rubber sealing strip; and the mounting seat has connecting surfaces corresponding to the positions of the first pushing surface and the second pushing surface respectively;

[0033] When the pushing portion is driven to move toward the mounting seat, the first pushing surface pushes the mounting seat to move in a direction toward the rubber sealing strip; when the pushing portion is driven to move away from the mounting seat, the second pushing surface pushes the mounting seat to move in a direction away from the rubber sealing strip.

[0034] The technical solution of the present invention has the following advantages:

[0035] 1. The cutting clamp provided by the present invention includes a limiting device, including a limiting channel adapted to the cross-sectional shape of the rubber sealing strip, and the rubber sealing strip is driven to slide in the limiting channel; a clamping device is located on the extension path of the limiting channel, and the clamping device is used to clamp the rubber sealing strip; the clamping device is driven to move along the length direction of the rubber sealing strip.

[0036] The cutting fixture of the present invention is provided with a limiting device including a limiting channel. When the present invention is used to cut the rubber sealing strip, the rubber sealing strip extending from the limiting channel is cut. Therefore, the limiting channel has a limiting effect on both the to-be-cut part and the remaining part of the rubber sealing strip, thereby avoiding the situation in which the cutting accuracy is affected by the shaking of the rubber sealing strip during the cutting process. At the same time, the present invention is provided with a clamping device to clamp the rubber sealing strip passing through the limiting channel, and drive the rubber sealing strip to move along its length direction, thereby cutting the rubber sealing strip passing through the limiting channel. Since the cutting fixture of the present invention is used by cutting the rubber sealing strip extending from the limiting channel instead of cutting the to-be-cut part exposed outside the slot of the same length as in the prior art, the length of the limiting channel in the present invention is shorter than the length of the base slot of the cutting fixture in the prior art, and does not need to be set to a length consistent with the to-be-cut part. The length of the limiting channel can play a limiting role. Therefore, compared with the prior art in which the rubber sealing strip is inserted into a slot with a longer length, the present invention only requires the end of the rubber sealing strip to be inserted into and extended out of the limiting channel. Since the limiting channel is shorter, the insertion of the rubber sealing strip and the removal after cutting are simpler. In addition, since the rubber sealing strip is moved under the drive of the clamping device, the rubber sealing strip passing through the limiting channel can remain in a non-relaxed state under the limiting effect of the limiting channel and the stretching effect of the clamping device. Therefore, the clamping device also limits the rubber sealing strip, and the stretching effect on the rubber sealing strip during the movement prevents the rubber sealing strip from shaking during cutting. Therefore, compared with the cutting clamp in the prior art, the present invention has the advantages of simple insertion and removal of the rubber sealing strip, and the rubber sealing strip will not affect the cutting accuracy due to shaking during the cutting process.

[0037] 2. In the cutting fixture provided by the present invention, the limiting device also includes a supporting portion, which is located on the extension path of the limiting channel and is used to be inserted into the groove body of the rubber sealing strip in the length direction, and the supporting portion is located on the side of the rubber sealing strip where the part to be cut is located.

[0038] The limiting device of the present invention also includes a supporting portion, which is used to be inserted into the groove body in the length direction of the rubber sealing strip to support the rubber sealing strip extending from the limiting channel, thereby playing a limiting role on the rubber sealing strip, and the supporting portion is located on the side of the rubber sealing strip where the part to be cut is located, so it can play a certain supporting and limiting role on the part to be cut, and during the cutting process, the supporting portion can prevent the rubber sealing strip from deforming and moving into the groove body where it is located, further preventing the rubber sealing strip from shaking and deforming during cutting, thereby ensuring the cutting accuracy.

[0039] 3. In the cutting fixture provided by the present invention, the support portion includes a roller, the roller has a flange that is adapted to the shape of the groove in the length direction of the rubber sealing strip, and the roller is rollingly disposed in the groove.

[0040] The supporting part of the present invention includes a roller, and the roller is provided with a flange for inserting into the groove body. Since the roller and the rubber sealing strip are in rolling contact, during the movement of the rubber sealing strip, the roller can not only play a guiding role, but also no large friction force will be generated between the roller and the rubber sealing strip. Therefore, the rubber sealing strip will not shake or deform due to friction, thereby ensuring cutting accuracy.

[0041] 4. The cutting fixture provided by the present invention also includes a moving device, which is connected to the clamping device and drives the clamping device to move along the length direction of the rubber sealing strip.

[0042] The present invention provides a moving device to drive the clamping device to move along the length direction of the rubber sealing strip, thereby driving the rubber sealing strip to move along its length direction. There is no need to manually push the clamping device to move, and the movement has better stability.

[0043] 5. The cutting clamp provided by the present invention also includes a detection device for detecting whether the rubber sealing strip extends into the clamping device. The detection device is communicatively connected to the clamping device to control the clamping device to clamp the rubber sealing strip, and the detection device is communicatively connected to the moving device to control the moving device to drive the clamping device to move along the length direction of the rubber sealing strip.

[0044] The present invention is provided with a detection device to detect whether the rubber sealing strip extends into the clamping device, and controls the clamping device to clamp the rubber sealing strip through the detection device, and controls the moving device to drive the clamping device to move along the length direction of the rubber sealing strip, so that the present invention does not need to manually judge the position of the rubber sealing strip and manually open the clamping device and the moving device. At the same time, since the detection position of the detection device is fixed, the length of the rubber sealing strip extending into the clamping device, the length of the rubber sealing strip extended out of the limiting channel driven by the moving device, and the length of the to-be-cut portion to be cut can be kept constant, thereby ensuring that the remaining portion of the rubber sealing strip obtained by the present invention will not have a large error.

[0045] 6. In the cutting clamp provided by the present invention, the detection device includes a position detection sensor, which is arranged on the moving device and is used to detect whether the rubber sealing strip extends into the clamping device; a trigger member, which is movably connected to the moving device, and the trigger member is pushed by the rubber sealing strip to move toward the position detection sensor; and the position detection sensor is located on the side of the trigger member away from the rubber sealing strip.

[0046] The structure and position of the clamping device of the present invention, as well as the position setting of the tool used for cutting, result in that the detection device cannot be directly set at the corresponding position after the rubber sealing strip is extended into the clamping device, that is, the detection device cannot be set at a position where the rubber sealing strip can be directly detected. Therefore, the present invention provides a trigger member and a position detection sensor for detecting the trigger member. During the process of the rubber sealing strip extending into the clamping device, the trigger member is pushed to move toward the position detection sensor, and when the rubber sealing strip reaches the specified position, the position detection sensor can just sense the trigger member, thereby detecting that the rubber sealing strip has been extended into the clamping device, thereby realizing the function of the detection device to detect whether the rubber sealing strip has been extended into the clamping device.

[0047] 7. In the cutting fixture provided by the present invention, the detection device further comprises an elastic member disposed on the moving device, and the elastic member is used to push the trigger member to reset when the rubber sealing strip is away from the trigger member.

[0048] The present invention provides an elastic member for pushing the trigger member to reset when the rubber sealing strip is away from the trigger member, so that during the next cutting operation, the detection device can still detect whether the rubber sealing strip extends into the clamping device.

[0049] 8. In the cutting fixture provided by the present invention, the clamping device clamps the remaining portion of the rubber sealing strip.

[0050] The clamping device of the present invention clamps the remaining part of the rubber sealing strip, but does not have a clamping effect on the part to be cut of the rubber sealing strip. Therefore, after the cutting clamp of the present invention is used to cut the rubber sealing strip, the part to be cut of the rubber sealing strip falls off directly and does not remain on the cutting clamp of the present invention. Therefore, in the process of the clamping device returning to its original position, that is, in the process of taking out the rubber sealing strip, the part to be cut will not interfere with the limiting device due to the clamping device clamping the part to be cut, thereby causing the clamping device to fail to return to its position, thereby affecting the accuracy and length error of the next cutting.

[0051] 9. The cutting equipment provided by the present invention comprises any one of the above-mentioned cutting fixtures.

[0052] The cutting device of the present invention is provided with a limiting device including a limiting channel. When the present invention is used to cut the rubber sealing strip, the rubber sealing strip extending from the limiting channel is cut. Therefore, the limiting channel has a limiting effect on both the to-be-cut part and the remaining part of the rubber sealing strip, thereby avoiding the situation in which the cutting accuracy is affected by the shaking of the rubber sealing strip during the cutting process. At the same time, the present invention is provided with a clamping device to clamp the rubber sealing strip passing through the limiting channel, and drive the rubber sealing strip to move along its length direction, thereby cutting the rubber sealing strip passing through the limiting channel. Since the cutting device of the present invention is used to cut the rubber sealing strip extending from the limiting channel, the length of the limiting channel of the present invention is shorter than that of the cutting clamp in the prior art. The length of the base slot is shorter, and it does not need to be set to the same length as the part to be cut. The length of the limiting channel can play a limiting role. Therefore, compared with the prior art in which the rubber sealing strip is inserted into a slot with a longer length, the present invention only needs to insert the end of the rubber sealing strip into and extend it out of the limiting channel. Since the limiting channel is shorter, the insertion and removal of the rubber sealing strip after cutting are simpler. In addition, since the rubber sealing strip moves under the drive of the clamping device, the rubber sealing strip passing through the limiting channel remains in a non-relaxed state under the limiting effect of the limiting channel and the stretching effect of the clamping device. Therefore, the clamping device also plays a limiting role on the rubber sealing strip. By stretching the rubber sealing strip during the movement, the rubber sealing strip is prevented from shaking during cutting. Therefore, compared with the prior art in which the rubber sealing strip is cut, the present invention has the advantages of simple insertion and removal of the rubber sealing strip, and the rubber sealing strip will not affect the cutting accuracy due to shaking during the cutting process.

[0053] 10. The cutting device provided by the present invention further comprises a scratching knife, adapted to cut the rubber sealing strip along the length direction of the rubber sealing strip; and a punching knife, adapted to cut the rubber sealing strip along the radial direction of the rubber sealing strip.

[0054] The cutting device of the present invention includes a scoring knife and a punching knife. The rubber sealing strip contacts the scoring knife while being moved along its length direction by the clamping device, thereby cutting the part to be cut and the remaining part along the length direction. Then, the part to be cut and the remaining part are completely separated by the cutting of the punching knife, thereby realizing the cutting and removal operation of the part to be cut of the rubber sealing strip.

[0055] 11. In the cutting device provided by the present invention, the end of the scratching knife is located on the side of the limiting channel facing the clamping device, and the blade of the scratching knife is arranged toward the limiting channel.

[0056] The scratching knife of the present invention is located on the side of the limiting channel facing the clamping device, and the blade of the scratching knife is arranged toward the limiting channel, so that the rubber sealing strip contacts the scratching knife during the process of being driven by the clamping device to move along its length direction, that is, the rubber sealing strip directly contacts the scratching knife after extending from the limiting channel, thereby completing the operation of cutting the part to be cut and the retained part along the length direction, and due to the limiting effect of the limiting device and the clamping device on the rubber sealing strip, setting the scratching knife at this position can avoid the cutting resistance of the scratching knife causing the rubber sealing strip to shake during the cutting process, thereby affecting the cutting accuracy.

[0057] 12. In the cutting equipment provided by the present invention, the support portion of the limiting device is located at the exit position of the limiting channel; and the scratching knife is located in the vertical direction of the support portion and close to the support portion.

[0058] The present invention sets the support part of the limit device at the exit position of the limit channel, and sets the scratching knife in the vertical direction of the support part and close to the support part, so that the support part and the scratching knife cooperate with each other. Since the limit channel limits the rubber sealing strip to prevent its shape and structure from changing, the rubber sealing strip is in the most stable state at the exit position of the limit channel. Setting the scratching knife at this position can avoid cutting errors caused by shaking and deformation of the rubber sealing strip to the greatest extent. The support part supports the rubber sealing strip, and its positional relationship with the scratching knife can prevent the rubber sealing strip from being deformed toward the groove where the support part is located due to the resistance of the scratching knife, thereby ensuring cutting accuracy.

[0059] 13. The cutting equipment provided by the present invention also includes a driving device for driving the punching knife, which includes a pushing portion, which is arranged along a moving direction perpendicular to the punching knife; a mounting seat, which is used to mount the punching knife; the pushing portion is provided with a first pushing surface for pushing the mounting seat to move in a direction toward the rubber sealing strip, and a second pushing surface for pushing the mounting seat to move in a direction away from the rubber sealing strip; and the mounting seat has connecting surfaces corresponding to the positions of the first pushing surface and the second pushing surface respectively; when the pushing portion is driven to move toward the mounting seat, the first pushing surface pushes the mounting seat to move in a direction toward the rubber sealing strip; when the pushing portion is driven to move away from the mounting seat, the second pushing surface pushes the mounting seat to move in a direction away from the rubber sealing strip.

[0060] The present invention provides a pushing portion to drive the mounting base to move, and further drives the punching knife to cut. Since the pushing portion of the present invention is arranged perpendicular to the moving direction of the punching knife, it reduces the length of the cutting device of the present invention in the moving direction of the punching knife, that is, reduces the length of the cutting device of the present invention in the radial direction of the rubber sealing strip, thereby reducing the occupied space of the cutting device of the present invention, so that the cutting device of the present invention is suitable for more environmental spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0062] Figure 1 It is a structural schematic diagram of embodiment 1 of the present invention;

[0063] Figure 2 for Figure 1 An enlarged schematic diagram of section A is shown;

[0064] Figure 3 is a cross-sectional view of a driving device provided in Embodiment 1 of the present invention;

[0065] Figure 4 is a top view of embodiment 1 of the present invention;

[0066] Figure 5 This is a partial structural schematic diagram of the limiting channel provided in Example 1 of the present invention.

[0067] Description of reference numerals:

[0068] 1. Rubber sealing strip; 2. Limiting channel; 3. Roller; 4. Trigger; 5. Position detection sensor; 6. Fixed clamping part; 7. Mobile clamping part; 8. Clamping device; 9. Sliding part; 10. Mobile platform; 11. Mobile device; 12. Scratching knife; 13. Punching knife; 14. Pushing part; 15. Mounting seat; 16. First pushing surface; 17. Second pushing surface; 18. Connecting surface. DETAILED DESCRIPTION

[0069] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] In the description of the present invention, it should be noted that the terms "first" and "second" are only used for distinction and cannot be understood as indicating or implying relative importance.

[0071] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or 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.

[0072] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0073] Example 1

[0074] This embodiment provides a cutting fixture, such as Figure 1-Figure 5 Shown, including

[0075] The limiting device includes a limiting channel 2 adapted to the cross-sectional shape of the rubber sealing strip 1, the rubber sealing strip 1 is driven to slide in the limiting channel 2, and the limiting channel 2 limits the rubber sealing strip 1 to prevent the rubber sealing strip 1 from rotating and deforming. In this embodiment, the limiting channel 2 is composed of grooves respectively arranged on the end faces of two splicing seats, and the two splicing seats are detachably connected by bolts. The shape of the groove of one splicing seat is adapted to the shape of the side of the rubber sealing strip 1 with the part to be cut, and the shape of the groove of the other splicing seat is adapted to the shape of the side of the rubber sealing strip 1 away from the part to be cut. The part to be cut is the part of the rubber sealing strip 1 that needs to be removed during the cutting process. The part of the rubber sealing strip 1 other than the part to be cut, that is, the part to be obtained through the cutting operation is the retained part. Figure 5 As shown in the figure, the lower splicing seat in the two splicing seats and the retained part of the rubber sealing strip 1 are shown. When in use, an upper splicing seat matching with it is provided at the upper end of the lower splicing seat. The limiting channel 2 is formed with a hook-shaped opening on the end face of the lower splicing seat facing the retained part in the figure. Here, it is a partial channel where the limiting channel 2 is adapted to the shape of the part to be cut. When the rubber sealing strip 1 passes through the limiting channel 2 as a whole, the part to be cut passes through the hook-shaped opening, and the part to be cut is limited by the hook-shaped opening; the limiting device of this embodiment also includes a supporting part, which is located on the extension path of the limiting channel 2 and is used to be inserted into the groove body of the rubber sealing strip 1 in its length direction, and the supporting part is located on the side where the part to be cut of the rubber sealing strip 1 is located. In this embodiment, the supporting part includes a roller 3, as shown in FIG. Figure 2 and Figure 4 As shown, the roller 3 has a flange that is compatible with the groove shape of the rubber sealing strip 1 in the length direction. The flange is inserted into the groove in the length direction of the rubber sealing strip 1, and when the rubber sealing strip 1 moves along its length direction, the rubber sealing strip 1 drives the roller 3 to roll through the flange, thereby reducing the friction between the support part and the rubber sealing strip 1, avoiding deformation of the rubber sealing strip 1 due to friction hindrance, and at the same time, the supporting effect of the support part can avoid deformation of the rubber sealing strip 1 toward the groove in which it is located; the limiting device of this embodiment has a limiting and supporting effect on the rubber sealing strip 1 as a whole, avoiding shaking, rotation and deformation of the rubber sealing strip 1, thereby affecting the cutting accuracy.

[0076] This embodiment does not specifically limit the specific structure of the limiting device. In other embodiments, the limiting device may also only include the limiting channel 2 without providing a supporting portion.

[0077] This embodiment does not specifically limit the specific structure of the support portion. In other embodiments, the support portion can also be a fixed plug-in block, whose end is used to be inserted into the groove body of the rubber sealing strip 1 in the length direction to support the rubber sealing strip 1.

[0078] The clamping device 8 is located on the extension path of the limiting channel 2, and the clamping device 8 is used to clamp the rubber sealing strip 1; the clamping device 8 is driven to move along the length direction of the rubber sealing strip 1; in this embodiment, Figure 1 and Figure 2As shown, the clamping device 8 includes a fixed clamping portion 6 and a movable clamping portion 7, the fixed clamping portion 6 is fixedly arranged on the mobile platform 10 of the mobile device 11, and the movable clamping portion 7 is installed on the mobile platform 10, and is driven to move in a direction toward or away from the fixed clamping portion 6 to clamp the rubber sealing strip 1 in the radial direction of the rubber sealing strip 1, and the fixed clamping portion 6 and the movable clamping portion 7 of this embodiment are both provided with a groove body, and the groove body cooperates to form a clamping space, and the clamping space is adapted to the shape of the side of the remaining portion away from the part to be cut, so as to clamp the remaining portion of the rubber sealing strip 1, and during the clamping process, due to the existence of the clamping space, the remaining portion of the rubber sealing strip 1 has only a small deformation, which will not affect the cutting accuracy. In addition, a plug-in portion is provided on the side of the mobile clamping portion 7 facing the part to be cut, and the plug-in portion is used to be inserted into the groove body of the rubber sealing strip 1 in the length direction to support the rubber sealing strip 1 and prevent the rubber sealing strip 1 from being deformed. When the rubber sealing strip 1 extends into the clamping device 8, the plug-in portion is located in the corresponding groove body. When the mobile clamping portion 7 moves toward the fixed clamping portion 6 to achieve clamping, the plug-in portion moves in the groove body, that is, the mobile clamping portion 7 of this embodiment has a short moving stroke itself, which avoids interference between the plug-in portion and the rubber sealing strip 1, thereby causing the rubber sealing strip 1 to be deformed due to the plug-in portion during the clamping process; the clamping device 8 clamps the rubber sealing strip 1 and drives the rubber sealing strip 1 to move along its length direction.

[0079] This embodiment does not specifically limit the portion of the rubber sealing strip 1 clamped by the clamping device 8. In other embodiments, the fixed clamping portion 6 and the movable clamping portion 7 of the clamping device 8 can clamp the retained portion and the portion to be cut at the same time. At this time, since the clamping device 8 and the limiting channel 2 both have a limiting effect on the portion to be cut, the cutting accuracy can still be guaranteed.

[0080] The present embodiment does not specifically limit the specific structure of the clamping device 8. In other embodiments, the fixed clamping portion 6 and the movable clamping portion 7 may not have a groove body forming a clamping space, and the end surfaces of the fixed clamping portion 6 and the movable clamping portion 7 facing the retained portion are both flat. Of course, the clamping device 8 may not be configured as a structure including the fixed clamping portion 6 and the movable clamping portion 7, and the clamping device 8 may also be a clamping claw that is driven to close or open.

[0081] The moving device 11 is connected to the clamping device 8 and drives the clamping device 8 to move along the length direction of the rubber sealing strip 1. In this embodiment, Figure 1 and Figure 4As shown, the moving device 11 includes two sliding parts 9 and a moving platform 10 that is slidably connected to the two sliding parts 9. The clamping device 8 is arranged on the moving platform 10. Preferably, one sliding part 9 adopts a rodless cylinder and the other sliding part 9 adopts a linear guide rail. The linear guide rail plays an auxiliary support role to prevent the moving platform 10 and the clamping device 8 from shaking, thereby causing cutting errors. The moving device 11 is used to drive the clamping device 8 to move along the length direction of the rubber sealing strip 1, and then drive the rubber sealing strip 1 to move along its length direction, while ensuring the stability of the rubber sealing strip 1 during movement to avoid shaking and affecting the cutting accuracy.

[0082] The present embodiment does not specifically limit the structure of the moving device 11. In other embodiments, the moving device 11 may be provided with only one sliding portion 9. Of course, in other embodiments, the moving device 11 may not be provided, and the clamping device 8 may be manually driven to move along the length direction of the rubber sealing strip 1.

[0083] The detection device is used to detect whether the rubber sealing strip 1 extends into the clamping device 8. The detection device is communicatively connected with the clamping device 8 to control the clamping device 8 to clamp the rubber sealing strip 1, and the detection device is communicatively connected with the moving device 11 to control the moving device 11 to drive the clamping device 8 to move along the length direction of the rubber sealing strip 1. The detection device of this embodiment includes a position detection sensor 5, which is arranged on the moving device 11 and is used to detect whether the rubber sealing strip 1 extends into the clamping device 8; a trigger member 4, which is movably connected to the moving device 11, and includes an abutment member for abutting against the rubber sealing strip 1 and a plug screw moved by the abutment member, and the abutment member and the plug screw are both slidably arranged on a corresponding mounting frame located on the moving platform 10, and the trigger member 4 is pushed by the rubber sealing strip 1 to move toward the position detection sensor 5; and the position detection sensor 5 is located on the side of the trigger member 4 away from the rubber sealing strip 1, and in the process of the rubber sealing strip 1 extending into the clamping device 8, it pushes the trigger member 4 to move toward the position detection sensor 5, and when the rubber sealing strip 1 reaches the specified position, the position detection sensor 5 can just sense the trigger member 4, thereby detecting that the rubber sealing strip 1 has extended into the clamping device 8, thereby realizing The detection device 8 has the function of detecting whether the rubber sealing strip 1 extends into the clamping device 8, and makes the position of the detection device more reasonable to avoid interference between the detection device and other components. At the same time, the detection device also includes an elastic member, which is arranged on the moving device 11. The elastic member is preferably a spring, one end of which abuts against the end surface of the bracket on the moving platform 10, and the other end is connected to the trigger member 4. The elastic member is used to push the trigger member 4 to reset when the rubber sealing strip 1 is away from the trigger member 4. The detection device of this embodiment can detect whether the rubber sealing strip 1 extends into the clamping device 8. Since the detection position of the detection device is fixed, the length of the rubber sealing strip 1 extending into the clamping device 8, the length of the rubber sealing strip 1 extending out of the limiting channel 2 driven by the moving device 11, and the length of the part to be cut can be kept constant, thereby ensuring that the remaining part of the rubber sealing strip will not have a large error.

[0084] This embodiment does not specifically limit the structure of the detection device. In other embodiments, the detection device may only include a position detection sensor 5. Of course, in other embodiments, the detection device may not be provided, and whether the rubber sealing strip 1 extends into the clamping device 8 can be judged by manual vision.

[0085] This embodiment also provides a cutting fixture, such as Figure 1-Figure 5 Shown, including

[0086] Any of the above-mentioned cutting fixtures can be used to clamp the rubber sealing strip 1 and prevent the rubber sealing strip 1 from shaking and deforming.

[0087] The cutting knife 12 is suitable for cutting the rubber sealing strip 1 along the length direction of the rubber sealing strip 1. The end of the cutting knife 12 of this embodiment is located on the side of the limiting channel 2 facing the clamping device 8, and the blade of the cutting knife 12 is arranged toward the limiting channel 2, so that after the rubber sealing strip 1 extends out of the limiting channel 2, it can be cut by the cutting knife 12 on the moving path, and the supporting part of the limiting device is located at the exit position of the limiting channel 2, and the cutting knife 12 is located in the vertical direction of the supporting part and close to the supporting part. Since the limiting channel 2 plays a limiting role in preventing the rubber sealing strip 1 from changing its shape and structure, the rubber sealing strip 1 is in the most stable state at the exit position of the limiting channel 2. Setting the cutting knife 12 at this position can avoid the cutting error caused by the shaking and deformation of the rubber sealing strip 1 to the greatest extent, and the supporting part supports the rubber sealing strip 1, and its positional relationship with the cutting knife 12 can prevent the rubber sealing strip 1 from being deformed toward the groove body where the supporting part is located due to the resistance of the cutting knife 12, thereby ensuring the cutting accuracy.

[0088] The present embodiment does not specifically limit the position of the cutting knife 12 . In other embodiments, the cutting knife 12 is at a certain distance from the exit position of the limiting channel 2 , and the cutting knife 12 is located between the supporting portion and the exit position of the limiting channel 2 .

[0089] The punching knife 13 is suitable for cutting the rubber sealing strip 1 along the radial direction of the rubber sealing strip 1. The punching knife 13 of this embodiment is located between the scratching knife 12 and the exit position of the limiting channel 2 to ensure that the punching knife 13 will not produce a notch left by the scratching knife 12 at the cutting position on the rubber sealing strip 1.

[0090] A driving device is used to drive the punching knife 13 to move, such as Figure 3 As shown, the driving device of this embodiment includes a pushing portion 14, which is arranged along a moving direction perpendicular to the punching knife 13; a mounting seat 15, which is used to mount the punching knife 13; the pushing portion 14 is provided with a first pushing surface 16 for pushing the mounting seat 15 to move in a direction toward the rubber sealing strip 1, and a second pushing surface 17 for pushing the mounting seat 15 to move in a direction away from the rubber sealing strip 1; and the mounting seat 15 has a connecting surface 18 corresponding to the positions of the first pushing surface 16 and the second pushing surface 17 respectively. Preferably, the pushing portion 14 reciprocates under the action of the electric cylinder, and the mounting seat 15 is provided with a hole for the pushing portion 14 to extend into, and the connecting surface 18 is the hole wall of the hole. When the pushing portion 14 is driven to move toward the mounting seat 15, the first pushing surface 16 pushes the mounting seat 15 to move in a direction toward the rubber sealing strip 1; when the pushing portion 14 is driven to move away from the mounting seat 15, the second pushing surface 17 pushes the mounting seat 15 to move in a direction away from the rubber sealing strip 1.

[0091] This embodiment does not specifically limit the structure of the driving device. In other embodiments, the pushing portion 14 may also be located on the side of the mounting seat 15, and the mounting seat 15 is provided with protrusions having corresponding connecting surfaces 18; of course, in other embodiments, the driving device may not be provided, and the punching knife 13 moves driven by the telescopic cylinder.

[0092] This embodiment does not specifically limit the structure of the cutting tool. In other implementations, the scratching knife 12 and the punching knife 13 may not be provided, and the rubber sealing strip 1 between the limiting device and the clamping device 8 may be cut by manually holding a tool.

[0093] The method of using this embodiment is as follows: hold the rubber sealing strip 1, extend the end of the rubber sealing strip 1 into the limiting channel 2 and extend it out from the outlet of the limiting channel 2, at this time, the supporting part is inserted into the corresponding groove body, and in the process of continuing to push the rubber sealing strip 1, the cutting knife 12 cuts the rubber sealing strip 1, and the remaining part after cutting extends into the clamping device 8 under the action of thrust, and abuts against the triggering member 4, thereby pushing the triggering member 4 to move. When the position detection sensor 5 detects the triggering member 4, the position detection sensor 5 sends a signal to the electric cylinder driving the mobile clamping part 7, so that the electric cylinder drives the mobile clamping part 7 to move to clamp the remaining part. At this time, the rubber sealing strip 1 cannot be pushed in any further, and the position detection sensor 5 sends a signal to the moving device 11, so that the moving device 11 starts to drive the clamping device 8 and the rubber sealing strip 1 to move. Of course, the moving device 11 There needs to be a certain time between the start-up and the start-up of the clamping device 8 to ensure that the rubber sealing strip 1 moves only after the clamping is stable. When the moving device 11 moves to the end position, the moving device 11 stops moving and sends a signal to the driving device, and the punching knife 13 performs cutting to completely separate the part to be cut from the retained part. After a certain time has passed since the punching knife 13 completes the cutting, or after receiving the signal sent by the driving device, the moving device 11 returns to its original position, and then the moving clamping part 7 is reset. At this time, the rubber sealing strip 1 is pulled out of the clamping device 8 and the limiting channel 2, and the cutting of the rubber sealing strip 1 is completed. Of course, in the process of the moving device 11 returning to its original position, a pulling force can also be applied to the rubber sealing strip 1 to make it move with the moving device 11, rather than moving under the push of the moving device 11 and the clamping device 8.

[0094] Of course, the mobile device 11 of this embodiment may not move to its end position, but a sensor is set at a certain distance from the original position of the mobile device 11 in the moving direction of the mobile device 11. When the mobile device 11 moves to the detection position of the sensor, the sensor sends a signal to the mobile device 11 to control the mobile device 11 to stop moving, and the sensor sends a signal to the driving device to control the punching knife 13 to cut.

[0095] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A cutting fixture for cutting rubber sealing strips, characterized in that: include: The limiting device comprises a limiting channel (2) adapted to the cross-sectional shape of the rubber sealing strip (1), wherein the rubber sealing strip (1) is driven to slide in the limiting channel (2); A clamping device (8) is located on the extension path of the limiting channel (2), and the clamping device (8) is used to clamp the rubber sealing strip (1); the clamping device (8) is driven to move along the length direction of the rubber sealing strip (1); the clamping device (8) clamps the remaining portion of the rubber sealing strip (1); A moving device (11) connected to the clamping device (8) and driving the clamping device (8) to move along the length direction of the rubber sealing strip (1); a detection device, used for detecting whether the rubber sealing strip (1) extends into the clamping device (8), the detection device being communicatively connected to the clamping device (8) to control the clamping device (8) to clamp the rubber sealing strip (1), and the detection device being communicatively connected to the moving device (11) to control the moving device (11) to drive the clamping device (8) to move along the length direction of the rubber sealing strip (1); The detection device comprises: a position detection sensor (5), which is arranged on the moving device (11) and is used to detect whether the rubber sealing strip (1) extends into the clamping device (8); a trigger member (4), which is movably connected to the moving device (11), and the trigger member (4) is pushed by the rubber sealing strip (1) to move toward the position detection sensor (5); and the position detection sensor (5) is located on a side of the trigger member (4) away from the rubber sealing strip (1); The detection device further comprises: an elastic member, arranged on the moving device (11), the elastic member being used to push the trigger member (4) to reset when the rubber sealing strip (1) is away from the trigger member (4); The limiting device further comprises: a support portion, located on the extension path of the limiting channel (2), used for being inserted into the groove body of the rubber sealing strip (1) in the length direction thereof, and the support portion is located on the side of the rubber sealing strip (1) where the portion to be cut is located.

2. The cutting fixture for cutting rubber sealing strips according to claim 1, characterized in that: The support portion comprises: A roller (3), the roller (3) having a flange that matches the shape of a groove in the length direction of the rubber sealing strip (1), and the roller (3) is rotatably arranged in the groove.

3. A cutting device, characterized in that: include: The cutting fixture for cutting rubber sealing strips as claimed in claim 1 or 2.

4. The cutting device according to claim 3, characterized in that Also includes: A cutting knife (12) adapted to cut the rubber sealing strip (1) along the length direction of the rubber sealing strip (1); The punching knife (13) is suitable for cutting the rubber sealing strip (1) along the radial direction of the rubber sealing strip (1).

5. The cutting device according to claim 4, characterized in that The end of the scratching knife (12) is located on a side of the limiting channel (2) facing the clamping device (8), and the blade of the scratching knife (12) is arranged toward the limiting channel (2).

6. The cutting device according to claim 5, characterized in that The support portion of the limiting device is located at the exit of the limiting channel (2); and the scratching knife (12) is located in the vertical direction of the support portion and close to the support portion.

7. The cutting device according to any one of claims 4 to 6, characterized in that: Also included is a driving device for driving the punching knife (13), which comprises: A pushing portion (14) is arranged perpendicular to the moving direction of the punching knife (13); A mounting seat (15) for mounting the punching knife (13); The pushing portion (14) is provided with a first pushing surface (16) for pushing the mounting seat (15) to move in a direction toward the rubber sealing strip (1), and a second pushing surface (17) for pushing the mounting seat (15) to move in a direction away from the rubber sealing strip (1); and the mounting seat (15) has connecting surfaces (18) corresponding to the positions of the first pushing surface (16) and the second pushing surface (17), respectively; When the pushing portion (14) is driven to move toward the mounting seat (15), the first pushing surface (16) pushes the mounting seat (15) to move in a direction toward the rubber sealing strip (1); when the pushing portion (14) is driven to move away from the mounting seat (15), the second pushing surface (17) pushes the mounting seat (15) to move in a direction away from the rubber sealing strip (1).

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