Production device for hemostatic clips
By designing a hemostatic clamp production device including a circulation table, a placement mechanism and an assembly mechanism, the problems of cumbersome equipment and inconvenient operation in the production process of the hemostatic clamp in the prior art are solved, and efficient spring assembly and production efficiency are achieved.
Patent Information
- Application Number
- CN202411877913.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-03-18
AI Technical Summary
During the production process of existing hemostasis clips, manual or multiple assembly equipment is required to intervene, assembling the spring between the pinch handle of the clip, resulting in cumbersome equipment and inconvenient operation, making it difficult to meet the needs of efficient production.
A production device including a base, a control panel, a circulation table, a placement mechanism and an assembly mechanism are designed. The hemostasis clip is restricted by the placement mechanism. The assembly mechanism uses an electronically controlled telescopic rod and a clamp to efficiently assemble the spring onto the hemostasis clip, and conducts opening and closing tests through the test assembly to improve production efficiency.
It realizes efficient assembly of springs between the clips during the hemostatic clamp production process, improves assembly stability and production efficiency, and tests and processes the test components in the assembly process, improving yield.
Smart Images

Figure CN119635275A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of production equipment, and in particular relates to a production device for a hemostatic clip. Background Art
[0002] A hemostatic clip is a tool used to seal and stop bleeding from a patient's wound during or after surgery. In short, the principle is to clamp the wound with a tool similar to a clip to seal the wound or block the blood vessels to prevent blood from flowing out.
[0003] Currently there is a Figure 1 The hemostatic clip shown is mainly composed of two clips 01 that are rotatably connected to each other with a connecting ring 02. A spring pushes the two clips at the end handle 03, so that the two clips can actively clamp under non-human operation. However, in the current production process of hemostatic clips, the spring needs to be assembled between the handles of the two clips. The current common assembly method mostly requires manual or multiple assembly equipment to intervene, so that the spring is compressed and inserted after the clips are kept in a certain state. This assembly method is cumbersome and inconvenient to operate, and it is difficult to meet the needs of efficient production. Summary of the invention
[0004] The purpose of the present invention is to provide a production device for a hemostatic clip to solve the problems mentioned in the background technology.
[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:
[0006] A production device for a hemostatic clip comprises a base and a control panel, wherein a circulation table is arranged at the upper end of the base, a plurality of placement mechanisms are evenly arranged on the circulation table, and an assembly mechanism is arranged on the rear side of the circulation table relative to the rotation direction based on the feeding side;
[0007] The placement mechanism includes a positioning plate and a limiting clamp, wherein the positioning plate is fixedly arranged at the upper end of the circulation table and a positioning groove is arranged in the middle, the limiting clamp is arranged at the upper end of the positioning plate, and a matching groove matching the positioning plate is arranged at the edge of the circulation table;
[0008] The assembly mechanism is connected to the external supporting component through a bracket. The assembly mechanism includes a loading assembly, a supporting plate and a stabilizing assembly which are arranged in sequence facing the circulation table. The loading assembly includes an electrically controlled telescopic rod and a clamp. The clamp is connected to the output shaft of the electrically controlled telescopic rod and faces the circulation table. The stabilizing assembly is connected to the supporting plate and the supporting plate is located on the upper side. A synchronizer is provided between the stabilizing assembly and the clamp.
[0009] The limit clamp includes two symmetrically arranged guide spring plates and an end plate. The two guide spring plates are distributed in a Y-shaped structure and are connected to the positioning plate through a support rod. The end plate corresponds to the center line of the guide spring plate and is located on a side close to the middle of the circulation table. The lower side of the guide spring plate is made of spring sheets and is vertical to the ground in the initial state.
[0010] The clamp includes a carrier plate, a motor, a screw and an L-shaped clamp. The carrier plate is connected to the output shaft of the electric-controlled telescopic rod and has an installation cavity facing the circulation table. The screw is rotatably arranged in the installation cavity and is a bidirectional threaded rod divided into two sections of threads. The motor is arranged on the side of the carrier plate and is connected to the screw in driving mode. There are two L-shaped clamps, which are respectively connected to the threaded sections on both sides of the screw through sliders.
[0011] The stabilizing assembly includes a clamp, a telescopic rod, a matching block and a spring. There are two stabilizing assemblies and they are symmetrically arranged on both sides of the support plate. The lower end of the support plate is connected to a suspension through a bracket. The telescopic rod is slidably connected to the side of the suspension. The clamp is connected to one end of the telescopic rod near the support plate and the support plate is provided with a sliding groove matching the clamp. The matching block is connected to the other end of the telescopic rod. There are two springs and they are respectively arranged on both sides of the telescopic rod corresponding to the clamp and the matching block with the suspension as the center line. An L-shaped lever is symmetrically arranged on the lower side of the carrier plate, and the L-shaped lever corresponds to the matching matching block.
[0012] The matching block includes a diamond block and an extension block. In the initial state of the L-shaped lever, the corresponding diamond block is away from the bevel of the support plate and the circulation table. The extension block is arranged on the bevel close to the support plate and the circulation table. The extension block is parallel to the corresponding bevel and extends outward.
[0013] A test assembly is also provided between the circulation table and the stabilization assembly. The test assembly includes a driving member and a pressure member. The number of the pressure members is several and corresponds one to one with several placement mechanisms. The driving member is provided at the lower side of the circulation table and is connected and matched with the clamp.
[0014] The pressure piece is two clamping plates, which are symmetrically arranged on the circulation platform with the center line of the limit clamp and located in the coordination groove. The clamping plates are elastically slidably connected to the circulation platform and are far away from the middle of the coordination groove in the initial state.
[0015] The number of the driving parts is two and they are symmetrically arranged with the electric-controlled telescopic rod as the axis, the driving parts include a right-angled trapezoidal table, an elastic telescopic rod, a push piece, a sliding rod and a cable, the right-angled trapezoidal table is located at the lower side of the circulation table and is connected to an external fixed component, a movable groove is opened in the middle of the right-angled trapezoidal table and the right-angle side is close to the symmetry line, the elastic telescopic rod is elastically slidably arranged in the sliding groove and is away from the symmetry line of the two right-angled trapezoidal tables in the initial state, the push piece is connected to the output shaft of the elastic telescopic rod, and the output shaft of the elastic telescopic rod remains in a contracted state in the initial state, the sliding rod is connected to the push piece and abuts against the surface of the right-angled trapezoidal table, one end of the cable is connected to the elastic telescopic rod, and the other end of the cable slides out of the right-angled trapezoidal table and is connected to the clamp through the guide wheel.
[0016] Compared with the prior art, the present invention has at least the following advantages:
[0017] Through the cooperation between the placement mechanism and the assembly mechanism, when assembling the hemostatic clip, the state of the hemostatic clip can be effectively restricted, and the spring can be assembled to the hemostatic clip in a more efficient manner, while improving the stability of the spring when clamping and satisfying the need to stretch the spring when assembling the spring to meet the needs of assembly; the test component can directly use the travel movement of the assembly mechanism during the resetting process to perform an opening and closing test on the assembled hemostatic clip, and then perform testing processing in the assembly link, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.
[0019] Figure 1 It is a structural schematic diagram of the present invention.
[0020] Figure 2 It is a structural schematic diagram of the present invention.
[0021] Figure 3 It is a structural schematic diagram of the present invention.
[0022] Figure 4 It is a structural schematic diagram of the present invention.
[0023] Figure 5 It is a structural schematic diagram of the present invention.
[0024] Figure 6 It is a structural schematic diagram of the present invention.
[0025] Clip 01, connecting ring 02, pinch handle 03, circulation platform 1, positioning plate 11, positioning groove 12, coordination groove 13, guide spring plate 14, end plate 15, support plate 2, electric control telescopic rod 21, carrier plate 22, motor 23, screw 24, L-shaped clamping plate 25, installation cavity 26, clamp 3, connecting rod 31, spring 32, slide groove 33, L-shaped lever 34, diamond block 4, extension block 41, clamping plate 5, clamping groove 51, right-angle trapezoidal platform 6, elastic telescopic rod 61, push piece 62, slide rod 63, cable 64, movable groove 65, guide wheel 66. DETAILED DESCRIPTION
[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0027] Example 1: Figure 1-6 As shown, a production device for hemostatic clips includes a base and a control panel. A circulation table 1 is provided at the upper end of the base. The circulation table 1 is evenly provided with a plurality of placement mechanisms. The circulation table 1 is provided with an assembly mechanism on the rear side relative to the rotation direction based on the upper material side.
[0028] The placement mechanism includes a positioning plate 11 and a limiting clamp. The positioning plate 11 is fixedly arranged on the upper end of the circulation table 1 and a positioning groove 12 is arranged in the middle. The limiting clamp is arranged on the upper end of the positioning plate 11. A matching groove 13 matching with the positioning plate 11 is opened at the edge of the circulation table 1.
[0029] The assembly mechanism is connected to the external supporting components through a bracket. The assembly mechanism includes a loading assembly, a supporting plate 2 and a stabilizing assembly which are arranged in sequence facing the circulation table 1. The loading assembly includes an electric telescopic rod 21 and a clamp. The clamp is connected to the output shaft of the electric telescopic rod 21 and faces the circulation table 1. The stabilizing assembly is connected to the supporting plate 2 and the supporting plate 2 is located on the upper side. A synchronizer is provided between the stabilizing assembly and the clamp.
[0030] like Figure 1 As shown, when producing the hemostatic clamp shown in the figure, a spring needs to be installed between the two clamp arms, so that the clamp arms can maintain a clamping state in a static state under the action of the spring to achieve hemostasis of the wound. Therefore, the spring needs to be installed between the two movable clamp arms during the production process;
[0031] During assembly, the circulation table 1 is intermittently rotated by an external transmission member, and cooperates with an external manual or mechanical arm or other loading mechanism to place the hemostatic clip to be assembled into the placement mechanism of the circulation table 1, wherein the positioning plate 11 is used to limit the position of the hemostatic clip, and the limit clamp is used to close the clamping end of the hemostatic clip to prevent it from being opened by external force when the spring is not installed, while meeting the installation of the subsequent spring, and the positioning groove 12 of the positioning plate 11 can limit and position the round cover of the hemostatic clip;
[0032] When the hemostatic clamp is placed on the circulation table 1 and the position is defined, it will be moved to the assembly mechanism by the circulation table 1 to assemble the spring. During this process, the external feeding mechanism places the spring to be assembled on the supporting plate 2. When the hemostatic clamp is moved to the assembly mechanism, the output shaft of the electric telescopic rod 21 in the feeding assembly extends to drive the clamp to extend close to the spring to prepare for clamping. Before this, the stabilizing assembly will pre-clamp and fix the spring to ensure that the clamp can accurately extend into the gap of the spring. Since the stabilizing assembly has preliminarily clamped the spring, the clamp will not be able to move into the gap of the spring even if there is a certain amount of friction. The spring is then pulled back to engage the hemostatic clip, and the clamping mechanism is reset and the steps are repeated, so that the hemostatic clip can be assembled and produced more efficiently and continuously, thereby improving efficiency and improving the yield rate of hemostatic clip assembly.
[0033] The limit clamp includes two symmetrically arranged guide spring plates 14 and an end plate 15. The two guide spring plates 14 are distributed in a Y-shaped structure and are connected to the positioning plate 11 through a support rod. The end plate 15 corresponds to the center line of the guide spring plates 14 and is located on one side close to the middle of the circulation table 1. The lower side of the guide spring plates 14 is made of spring sheets and is vertical to the ground in the initial state.
[0034] The distribution arrangement of the Y-shaped guide spring plate 14 can gradually converge the clamping end of the hemostatic clamp when the hemostatic clamp is placed on the positioning plate 11, so that the hemostatic clamp maintains a clamping state to facilitate the assembly of the spring. The arrangement of the end plate 15 can further limit the position of the hemostatic clamp.
[0035] The clamp includes a carrier plate 22, a motor 23, a screw 24 and an L-shaped clamp plate 25. The carrier plate 22 is connected to the output shaft of the electric-controlled telescopic rod 21 and has an installation cavity 26 facing the circulation table 1. The screw 24 is rotatably arranged in the installation cavity 26 and is a bidirectional threaded rod divided into two sections of threads. The motor 23 is arranged on the side of the carrier plate 22 and is transmission-connected to the screw 24. There are two L-shaped clamp plates 25, which are respectively connected to the threaded sections on both sides of the screw 24 through sliders.
[0036] The stabilizing component includes a clamp 3, a connecting rod 31, a matching block and a spring 32. There are two stabilizing components and they are symmetrically arranged on both sides of the support plate 2. The lower end of the support plate 2 is connected to the suspension through a bracket. The connecting rod 31 is slidably connected to the side of the suspension. The clamp 3 is connected to the connecting rod 31 near one end of the support plate 2 and the support plate 2 is provided with a slide groove 33 matching the clamp 3. The matching block is connected to the other end of the connecting rod 31. There are two springs 32 and they are respectively arranged on both sides of the connecting rod 31 with the suspension as the center line, corresponding to the clamp 3 and the matching block. An L-shaped lever 34 is symmetrically arranged on the lower side of the carrier plate 22, and the L-shaped lever 34 corresponds to the matching matching block.
[0037] The matching blocks include a diamond block 4 and an extension block 41. In the initial state of the L-shaped lever 34, the corresponding diamond block 4 is located at the oblique side away from the support plate 2 and the circulation table 1. The extension block 41 is arranged at the oblique side close to the support plate 2 and the circulation table 1. The extension block 41 is parallel to the corresponding oblique side and extends outward.
[0038] During assembly, the electrically controlled telescopic rod 21 drives the clamper close to the spring. At this time, the L-shaped lever 34 connected to the carrier plate 22 will abut the diamond block 4 before the L-shaped clamping plate 25 extends into the spring. When the diamond block 4 is abutted, the connecting rod 31 will be synchronized to move it to one side of the middle of the support plate 2 and squeeze the corresponding spring 32. The movement of the connecting rod 31 will drive the clamper 3 close to the spring on the support plate 2. At this time, center positioning and preliminary clamping and fixing are performed. As the output shaft of the electrically controlled telescopic rod 21 continues to extend, the L-shaped clamping plate 25 extends into the interval of the spring on the support plate 2. During this process, the L-shaped lever 34 is kept The abutment of the diamond block 4 keeps the clamp 3 in a clamping state, and finally the motor 23 starts to drive the screw 24 to rotate. The bidirectional threaded section on the screw 24 drives the two L-shaped clamps 25 to approach each other and squeeze the spring on the support plate 2 according to the rotation direction. Finally, the electric-controlled telescopic rod 21 continues to drive the L-shaped clamp 25 to the corresponding position of the hemostatic clamp and release it for installation. In this way, before clamping the spring, the position and state of the spring can be pre-limited to better meet the assembly needs of the spring, thereby improving the yield rate after assembly and reducing the time required for state adjustment during spring loading, thereby improving the overall production efficiency.
[0039] Example 2: Figure 2-6 As shown, based on further improvement on Example 1, a test assembly is further provided between the circulation table 1 and the stabilization assembly, the test assembly includes a driving member and a pressure member, the number of the pressure members is several and corresponds one to one with the several placement mechanisms, the driving member is provided on the lower side of the circulation table 1 and is connected and matched with the clamp 3.
[0040] The pressure piece is two clamping plates 5, which are symmetrically arranged on the circulation platform 1 with the center line of the limit clamp and located in the clamping groove 51. The clamping plates 5 are elastically slidably connected to the circulation platform 1 and are away from the middle of the clamping groove 51 in the initial state.
[0041] There are two driving parts and they are symmetrically arranged with the electric-controlled telescopic rod 21 as the axis. The driving parts include a right-angled trapezoidal table 6, an elastic telescopic rod 61, a push piece 62, a sliding rod 63 and a cable 64. The right-angled trapezoidal table 6 is located on the lower side of the circulation table 1 and is connected to an external fixed component. A movable groove 65 is opened in the middle of the right-angled trapezoidal table 6 and the right-angle side is close to the symmetry line. The elastic telescopic rod 61 is elastically slidably arranged in the sliding groove 33 and is away from the symmetry line of the two right-angled trapezoidal tables 6 in the initial state. The push piece 62 is connected to the output shaft of the elastic telescopic rod 61, and the output shaft of the elastic telescopic rod 61 remains in a retracted state in the initial state. The sliding rod 63 is connected to the push piece 62 and abuts against the surface of the right-angled trapezoidal table 6. One end of the cable 64 is connected to the elastic telescopic rod 61, and the other end of the cable 64 slides out of the right-angled trapezoidal table 6 and is guided by the guide wheel 66 to be connected to the clamp 3.
[0042] Furthermore, in order to improve the overall production efficiency and yield rate, after the spring and the hemostatic clamp are assembled, the hemostatic clamp will be actively clamped at least once through the test assembly during the clamp reset process. When the L-shaped lever 34 moves forward with the extension of the electric control telescopic rod 21, it will gradually pass over the diamond block 4 until it passes over the extension block 41. At this time, the entire matching block loses its obstruction and resets to the center. When the L-shaped lever 34 resets backward, the L-shaped lever 34 will abut against the extension block 41 and cause the entire matching block to move away from the support plate 2, that is, the connecting rod 31 moves. At this time, the movement of the connecting rod 31 will pull the elastic telescopic rod 61 to move through the cable 64, and when the elastic telescopic rod 61 moves, its output shaft will be blocked by the slide bar 63 and the right-angle trapezoidal platform 6. The upward extension lifts up, thereby raising the horizontal height of the push piece 62 until it can overlap with the clamping plate 5. In this way, during the continuous movement of the elastic telescopic rod 61, the push piece 62 can push the clamping plate 5, thereby allowing the clamping plate 5 to clamp the assembled hemostatic clamp to test whether its opening and closing is normal and smooth. The guide spring plate 14 itself is not completely connected to the positioning plate 11, and the lower side of the guide spring plate 14 is elastic. Therefore, during the opening and closing process of the hemostatic clamp, it can meet the opening and closing needs of the hemostatic clamp and automatically reset, and before assembly, it can meet the state limitation of the hemostatic clamp. With the camera set on the upper side of the assembly mechanism, the computer can recognize and collect test images to preliminarily judge whether the opening and closing of the hemostatic clamp meets the factory requirements, thereby improving the production efficiency.
[0043] Furthermore, in order to meet the test needs, the control panel can be preset so that the electric telescopic rod 21 performs multiple reciprocating movements when passing through the matching block during the process of resetting the clamp, so as to perform multiple clamping tests. In the initial state, the height of the push piece 62 is affected by the position of the elastic telescopic rod 61 and the right-angle trapezoidal table 6, and its horizontal height is lower than the clamping plate 5. Therefore, during the rotation of the circulation table 1, the clamping plate 5 and other components will not conflict.
[0044] In this embodiment, the elastic telescopic rod 61, the elastic sliding connection between the elastic telescopic rod 61 and the slide groove 33, and the elastic sliding connection between the clamping plate 5 and the coordination groove 5113 all adopt the currently common spring reset method, that is, the elastic telescopic rod 61 is internally controlled by a spring and a limiting structure to control the extension and retraction of the connecting rod 31, and similarly, the slide groove 33 and the clamping groove 51 are also reset by a spring, so that the elastic connection or extension and retraction requirements of the device can be met. Of course, in other embodiments, a spring clip can also be used for reset.
[0045] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. A hemostatic clip production device, comprising a base and a control panel, wherein a circulation table is provided at the upper end of the base, characterized in that: The circulation table is evenly provided with a plurality of placement mechanisms, and the circulation table is provided with an assembly mechanism on the rear side relative to the rotation direction based on the upper material side; The placement mechanism includes a positioning plate and a limiting clamp, wherein the positioning plate is fixedly arranged at the upper end of the circulation table and a positioning groove is arranged in the middle, the limiting clamp is arranged at the upper end of the positioning plate, and a matching groove matching the positioning plate is arranged at the edge of the circulation table; The assembly mechanism is connected to the external supporting component through a bracket. The assembly mechanism includes a loading assembly, a supporting plate and a stabilizing assembly which are arranged in sequence facing the circulation table. The loading assembly includes an electrically controlled telescopic rod and a clamp. The clamp is connected to the output shaft of the electrically controlled telescopic rod and faces the circulation table. The stabilizing assembly is connected to the supporting plate and the supporting plate is located on the upper side. A synchronizer is provided between the stabilizing assembly and the clamp.
2. The device for producing a hemostatic clip according to claim 1, characterized in that: The limit clamp includes two symmetrically arranged guide spring plates and an end plate. The two guide spring plates are distributed in a Y-shaped structure and are connected to the positioning plate through a support rod. The end plate corresponds to the center line of the guide spring plate and is located on a side close to the middle of the circulation table. The lower side of the guide spring plate is made of spring sheets and is vertical to the ground in the initial state.
3. The device for producing a hemostatic clip according to claim 2, characterized in that: The clamp includes a carrier plate, a motor, a screw and an L-shaped clamp. The carrier plate is connected to the output shaft of the electric-controlled telescopic rod and has an installation cavity facing the circulation table. The screw is rotatably arranged in the installation cavity and is a bidirectional threaded rod divided into two sections of threads. The motor is arranged on the side of the carrier plate and is connected to the screw in driving mode. There are two L-shaped clamps, which are respectively connected to the threaded sections on both sides of the screw through sliders.
4. The device for producing a hemostatic clip according to claim 3, characterized in that: The stabilizing assembly includes a clamp, a telescopic rod, a matching block and a spring. There are two stabilizing assemblies and they are symmetrically arranged on both sides of the support plate. The lower end of the support plate is connected to a suspension through a bracket. The telescopic rod is slidably connected to the side of the suspension. The clamp is connected to one end of the telescopic rod near the support plate and the support plate is provided with a sliding groove matching the clamp. The matching block is connected to the other end of the telescopic rod. There are two springs and they are respectively arranged on both sides of the telescopic rod corresponding to the clamp and the matching block with the suspension as the center line. An L-shaped lever is symmetrically arranged on the lower side of the carrier plate, and the L-shaped lever corresponds to the matching matching block.
5. The device for producing a hemostatic clip according to claim 4, characterized in that: The matching block includes a diamond block and an extension block. In the initial state of the L-shaped lever, the corresponding diamond block is away from the bevel of the support plate and the circulation table. The extension block is arranged on the bevel close to the support plate and the circulation table. The extension block is parallel to the corresponding bevel and extends outward.
6. The device for producing a hemostatic clip according to claim 5, characterized in that: A test assembly is also provided between the circulation table and the stabilization assembly. The test assembly includes a driving member and a pressure member. The number of the pressure members is several and corresponds one to one with several placement mechanisms. The driving member is provided at the lower side of the circulation table and is connected and matched with the clamp.
7. The device for producing a hemostatic clip according to claim 6, characterized in that: The pressure piece is two clamping plates, which are symmetrically arranged on the circulation platform with the center line of the limit clamp and located in the coordination groove. The clamping plates are elastically slidably connected to the circulation platform and are far away from the middle of the coordination groove in the initial state.
8. The device for producing a hemostatic clip according to claim 7, characterized in that: There are two driving parts and they are symmetrically arranged with the electric-controlled telescopic rod as the axis. The driving parts include a right-angled trapezoidal table, an elastic telescopic rod, a push piece, a sliding rod and a cable. The right-angled trapezoidal table is located at the lower side of the circulation table and is connected to an external fixed component. A movable groove is opened in the middle of the right-angled trapezoidal table and the right-angle side is close to the symmetry line. The elastic telescopic rod is elastically slidably arranged in the sliding groove and is away from the symmetry line of the two right-angled trapezoidal tables in the initial state. The push piece is connected to the output shaft of the elastic telescopic rod, and the output shaft of the elastic telescopic rod remains in a contracted state in the initial state. The sliding rod is connected to the push piece and abuts against the surface of the right-angled trapezoidal table. One end of the cable is connected to the elastic telescopic rod, and the other end of the cable slides out of the right-angled trapezoidal table and is guided by the guide wheel to be connected to the clamp.