Clamp

Abstract

The utility model relates to a clamp which comprises a base connected with two clamping mechanisms and two abutting mechanisms. The two abutting mechanisms comprise two abutting columns and two mounting plates, the two mounting plates are separately arranged at the two ends of the base, and the two abutting columns are separately arranged on the two mounting plates and are oppositely arranged; the two clamping mechanisms are arranged between the two abutting mechanisms and are oppositely arranged to form two clamping grooves, and the two clamping grooves and the two abutting columns are coaxially arranged; the clamping mechanism is provided with a plurality of welding positions, and the multiple welding positions are arranged in the circumferential direction of the clamping groove and communicate with the clamping groove. According to the clamp, the clamping stability is improved, the target device is not prone to moving in the welding process, and the welding yield is increased.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mechanical manufacturing, and in particular to a clamp. Background Art

[0002] A fixture is a device used to fix the object to be processed during the mechanical manufacturing process so that it occupies the correct position for construction or inspection.

[0003] The cylindrical component includes a top cover, a cylinder and a bottom cover. During assembly, a clamp is needed to fix the cylinder, and the top cover and the bottom cover are abutted against the cylinder. Then, the top cover and the bottom cover are welded to the two ends of the cylinder respectively through spot welding process.

[0004] Because the cylinder is a cylindrical structure, in order to maintain the stability of the top cover and the bottom cover during spot welding, multiple welding points need to be welded circumferentially along the circular end of the cylinder. Due to the poor clamping stability of the existing fixture, the cylinder is easily forced to slide during the welding process, causing the position of the welding point to shift, affecting the welding yield. Utility Model Content

[0005] The present disclosure provides a clamp to at least solve the above technical problems existing in the prior art.

[0006] According to the first aspect of the present disclosure, there is provided a clamp, comprising: a base, connected with two clamping mechanisms and two abutting mechanisms; the two abutting mechanisms comprise two abutting columns and two mounting plates, the two mounting plates are respectively arranged at the two ends of the base, the two abutting columns are respectively arranged on the two mounting plates and are arranged opposite to each other; the two clamping mechanisms are arranged between the two abutting mechanisms and are arranged opposite to each other, forming two clamping grooves, the two clamping grooves are arranged coaxially with the two abutting columns; the clamping mechanism forms a plurality of welding positions, the plurality of welding positions are arranged along the circumference of the clamping groove and are connected to the clamping groove.

[0007] In one embodiment, the clamp also includes a sliding mechanism; the sliding mechanism includes a guide rail, a slider and a positioning member; the guide rail is fixed to the base; the slider is slidably connected to the guide rail and is connected to the two clamping mechanisms; the positioning member is connected to the slider and is used to fix the slider and the guide rail.

[0008] In one possible implementation manner, the guide rails have two, and the two guide rails are arranged in parallel on the base; the sliders have two groups, and the number of the sliders in each group is at least two, and each group of the sliders is arranged on the two guide rails; the two clamping mechanisms are arranged on the two groups of the sliders.

[0009] In one embodiment, the clamp further includes two linear transmission mechanisms; the two linear transmission mechanisms are respectively arranged on two groups of slide blocks and are respectively connected to the two clamping mechanisms; the clamping mechanism includes a first clamping member and a second clamping member, the first clamping member and the second clamping member are connected to the linear transmission mechanism, and the first clamping member and the second clamping member cooperate to form the clamping groove.

[0010] In one embodiment, the linear transmission mechanism includes a base, a bidirectional screw, a linear slide rail, a first transmission member, a first anti-rotation member, a second transmission member and a second anti-rotation member; the base is fixed on the slider; the linear slide rail is fixed on the base; the bidirectional screw is rotatably connected to the base and is arranged parallel to the linear slide rail; the first transmission member and the second transmission member are threadedly connected to the bidirectional screw, and the screw threads of the first transmission member and the second transmission member are in opposite directions; the first clamping member is connected to the first transmission member, and the second clamping member is connected to the second transmission member; the first anti-rotation member and the second anti-rotation member are slidably connected to the linear slide rail; the first anti-rotation member is connected to the first transmission member, and the second anti-rotation member is connected to the second clamping member.

[0011] In one possible implementation manner, the first clamping member is formed with a first groove body; the second clamping member is formed with a second groove body; the first groove body and the second groove body are connected to form the clamping groove.

[0012] In one possible implementation manner, the clamping mechanism forms a limiting sleeve along the notch of the clamping groove; the limiting sleeve has the same shape as the clamping groove and is provided with a plurality of the welding positions.

[0013] In one embodiment, the first clamping member is formed with a first limiting body, and the first limiting body is arranged around the notch of the first groove body; the second clamping member is formed with a second limiting body, and the second limiting body is arranged around the notch of the second groove body; the first limiting body and the second limiting body are connected to form the limiting sleeve.

[0014] In one embodiment, it also includes two rotating mechanisms, which are respectively arranged on the two bases and opposite to each other; the rotating mechanism includes two supporting members and two rotating members; the two supporting members are connected to the base; the two rotating members are respectively rotatably connected to the two supporting members, are opposite to each other, and are located on both sides of the clamping groove.

[0015] In one possible implementation manner, the base is provided with two sliding grooves, the two sliding grooves are opposite to each other and are located on both sides of the clamping groove; the two supporting members are connected with a sliding block and a fixing member; the sliding block is slidingly connected in the sliding groove; the fixing member is connected to the sliding block and is used to fix the sliding block to the base.

[0016] The present invention provides a clamp, which is provided with two clamping mechanisms. The two clamping mechanisms form two coaxially arranged clamping grooves for clamping the two ends of a cylinder. Two abutting mechanisms are provided for respectively abutting the top cover and the bottom cover against the two ends of the cylinder. The clamping mechanisms form welding positions along the clamping grooves for exposing the welding points and making the welding points clear. The present invention improves the stability of clamping, makes the target device less likely to move during the welding process, and improves the welding yield.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0019] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0020] Figure 1 The overall structure of a clamp according to an embodiment of the present disclosure is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of a clamp according to an embodiment of the present disclosure is shown in FIG. Figure 2 ;

[0022] Figure 3 An exploded view of a clamp according to an embodiment of the present disclosure is shown.

[0023] Explanation of the reference numerals in the figure: 1, base; 2, sliding mechanism; 21, guide rail; 22, slider; 23, positioning member; 24, positioning hole; 3, linear transmission mechanism; 31, base; 311, first substrate; 312, second substrate; 313, sliding groove; 32, bidirectional screw rod; 33, linear slide rail; 34, first transmission member; 35, first anti-rotation member; 36, second transmission member; 37, second anti-rotation member; 38, support seat ; 4. Clamping mechanism; 41. First clamping member; 42. Second clamping member; 43. Clamping groove; 431. First groove body; 432. Second groove body; 44. Limiting sleeve; 441. First limiting body; 442. Second limiting body; 45. Welding position; 5. Rotating mechanism; 51. Support member; 52. Rotating member; 53. Sliding member; 54. Fixed member; 6. Abutting mechanism; 61. Abutting column; 62. Mounting plate; 63. Nut. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0025] like Figure 1 As shown, the present disclosure provides a clamp, including a base 1, two abutment mechanisms 6, two clamping mechanisms 4, a sliding mechanism 2, two linear transmission mechanisms 3 and a rotating mechanism 5, the sliding mechanism 2 is arranged on the base 1, the two abutment mechanisms 6 are respectively arranged at two ends of the base 1, the two linear transmission mechanisms 3 are connected to the sliding mechanism 2, the two clamping mechanisms 4 are respectively arranged on the two linear transmission mechanisms 3, and the two rotating mechanisms 5 are respectively arranged on the two linear transmission mechanisms 3.

[0026] The two clamping mechanisms 4 slide to the appropriate position through the sliding mechanism 2, and then clamp the cylinder through the linear transmission mechanism 3. The two abutting mechanisms 6 respectively abut the top cover and the bottom cover to the two ends of the cylinder, thereby completing the fixation of the cylinder, the top cover and the bottom cover, and then welding is performed. When the welding point needs to be changed, the cylinder is rotated by manpower and the rotating device to rotate the welding point to a position suitable for welding.

[0027] like Figure 2 and 3 As shown, the base 1 may be a table made of a rigid material.

[0028] The sliding mechanism 2 includes a guide rail 21, a slider 22 and a positioning member 23. The guide rail 21 is fixed on the base 1 by bolts or welding.

[0029] The slider 22 is slidably connected to the guide rail 21. The slider 22 is provided with a positioning hole 24. The positioning member 23 is inserted into the positioning hole 24, and the end of the positioning member 23 abuts against the guide rail 21, so that the slider 22 is fixed to the guide rail 21. The positioning hole 24 is a threaded hole, and the positioning member 23 is a bolt that cooperates with the threaded hole.

[0030] At least one slider 22 is connected to a linear transmission mechanism 3. The linear transmission mechanism 3 slides along the guide rail 21 through the slider 22 and drives the clamping mechanism 4 to move, thereby increasing the flexibility of the clamping position of the clamping mechanism 4. By providing a positioning member 23 and a positioning hole 24 that cooperates with the positioning member 23, the clamping mechanism 4 can be conveniently fixed on the guide rail 21.

[0031] There are two guide rails 21, which are arranged in parallel and fixed on the base 1. There are two groups of sliders 22, and the number of sliders 22 in each group is at least two. Each group of sliders 22 is arranged on the two guide rails 21. The two groups of sliders 22 are arranged opposite to each other and connected to the linear transmission mechanism 3. A positioning hole 24 is opened on each slider 22, and the positioning hole 24 is opened on the outer side of the slider 22. The outer side is specifically the side of the slider 22 arranged on one guide rail 21 facing away from the other guide rail 21.

[0032] In a specific embodiment, the number of each group of sliders 22 is two, and the two sliders 22 are respectively disposed on two guide rails 21 and are arranged opposite to each other in a direction perpendicular to the guide rails 21 .

[0033] The arrangement of multiple guide rails 21 and multiple sliders 22 in each group provides multiple supporting points for the clamping mechanism 4 , thereby improving the stability of the connection structure between the linear transmission mechanism 3 and the sliders 22 .

[0034] The linear transmission mechanism 3 includes a base 31 , a bidirectional screw 32 , two screw support seats 38 , a linear guide rail 33 , a first transmission member 34 , a first anti-rotation member 35 , a second transmission member 36 and a second anti-rotation member 37 .

[0035] The base 31 includes a first substrate 311 and a second substrate 312 . The first substrate 311 is parallel to the base 1 and connected to a group of sliders 22 by screws. The second substrate 312 is perpendicular to the first substrate 311 and connected to the first substrate 311 by screws.

[0036] The linear slide rail 33 is fixed to the first base plate 311 by screws, and the first anti-rotation component 35 and the second anti-rotation component 37 are slidably connected to the linear slide rail 33. The first anti-rotation component 35 can be one or more, and the second anti-rotation component 37 can be one or more. The first anti-rotation component 35 is a first anti-rotation block, and the second anti-rotation component 37 is a second anti-rotation block.

[0037] The two screw support seats 38 are fixed by screws on one side of the second base plate 312 close to the linear slide rail 33. The two screw support seats 38 are arranged opposite to each other. The bidirectional screw 32 is rotatably connected to the two screw support seats 38, and the input end of the bidirectional screw 32 is connected to a motor or a handle. The first rotating member 52 and the second rotating member 52 are threadedly connected to the bidirectional screw 32. The first transmission member 34 is a first transmission nut, and the second transmission member 36 is a second transmission nut. The internal threads of the first transmission nut and the second transmission nut have opposite directions.

[0038] The clamping mechanism 4 includes a first clamping member 41 and a second clamping member 42. The first clamping member 41 is a first clamping plate, and the second clamping member 42 is a second clamping plate. The first clamping plate and the second clamping plate are parallel to the second substrate 312. The first clamping plate is connected to the first anti-rotation block by screws, and the side facing the second substrate 312 is connected to the first transmission nut by screws. The second clamping plate is connected to the second anti-rotation block by screws, and the side facing the second substrate 312 is connected to the second transmission nut by screws.

[0039] The first clamping plate is provided with a first groove body 431, and a first limiting body 441 is formed along the first groove body 431. The shape of the first limiting body 441 is the same as that of the first groove body 431. A plurality of welding positions 45 are equidistantly formed on the first limiting body 441. The welding positions 45 are specifically welding ports, which are connected to the first groove body 431.

[0040] The second clamping plate is provided with a second groove body 432, and a second limiting body 442 is formed along the second groove body 432. The shape of the second limiting body 442 is the same as that of the second groove body 432. A plurality of welding positions 45 are equidistantly formed on the second limiting body 442. The welding positions 45 are specifically welding ports, which are connected to the second groove body 432.

[0041] The first clamping plate and the second clamping plate are moved along the direction of the linear guide rail 33 by rotating the bidirectional screw rod 32. The first groove body 431 and the second groove body 432 are connected to form a clamping groove 43. The clamping groove 43 is a cylindrical structure matching the cylinder body. The first clamping groove 43 and the second clamping groove 43 are semi-cylindrical structures. The first limit body 441 and the second limit body 442 are both semi-cylindrical sleeves. The two clamping mechanisms 4 form two clamping grooves 43, and the two clamping grooves 43 are coaxially arranged with the two studs.

[0042] The first limiting body 441 and the second limiting body 442 are connected to form a limiting sleeve 44 . The limiting sleeve 44 has the same shape as the clamping groove 43 . The limiting sleeve 44 has a plurality of welding openings equidistantly formed along the circumferential direction.

[0043] By setting a bidirectional screw 32, a first transmission member 34 and a second transmission member 36, the screw threads of the first transmission member 34 and the second transmission member 36 are in opposite directions, so that the first clamping member 41 and the second clamping member 42 are respectively moved in different directions along the bidirectional screw 32 through the first transmission member 34 and the second transmission member 36, thereby clamping and releasing the cylinder body in time, and setting a clamping groove 43 that matches the cylinder body to achieve a better clamping effect and prevent the cylinder body from loosening easily, and setting a limit sleeve 44, and opening a plurality of welding positions 45 on the limit sleeve 44 along the clamping groove 43 to make the welding points clearer, facilitate welding for operators, and improve welding yield.

[0044] The rotating mechanism 5 is disposed on a side of the second base plate 312 away from the linear guide rail 33 , and includes two supporting members 51 , two rotating members 52 , two sliding members 53 and two fixing members 54 .

[0045] The two second substrates 312 are welded with two first fixed shafts on the side away from the linear guide rail 33. The two first fixed shafts are coaxially arranged. The second substrate 312 is provided with two sliding grooves 313. The two sliding grooves 313 are opposite to each other and are located on both sides of the clamping groove 43. The sliding grooves 313 are long strip-shaped through grooves.

[0046] The two support members 51 are two support arms, one end of the two support arms overlaps and passes through a fixed shaft, and the other end forms a second fixed shaft.

[0047] The two rotating parts 52 are two rollers, and the two second fixed shafts are respectively passed through the two rollers. The two rollers are arranged opposite to each other and are located on both sides of the clamping groove 43 and below the clamping groove 43. The central axes of the two rollers are parallel to the central axis of the clamping groove 43. The two rollers are used to connect the sides of the cylinder.

[0048] The two sliding members 53 are two sliding posts, and the two sliding posts are formed with external threads. The two sliding posts are respectively welded to the sides of the two support arms facing the second substrate 312 and are slidably connected in the sliding grooves 313 .

[0049] The two positioning members 23 are two positioning nuts, which are threadedly connected to the two sliding posts. The positioning nuts abut the sliding posts against the second substrate 312 to fix the sliding posts.

[0050] By arranging the rotating parts 52 on both sides of the clamping groove 43, the cylinder body can be easily rotated axially along the central axis. By opening two sliding grooves 313 on the second base plate 312, the two sliding parts 53 are slidably connected in the two sliding grooves 313, driving the two supporting parts 51 to move along the direction of the sliding grooves 313, so that the two rotating parts 52 can be connected to the cylinder body or leave the cylinder body as needed.

[0051] The two abutting mechanisms 6 include two mounting plates 62 , two abutting columns 61 and two nuts 63 .

[0052] The two mounting plates 62 are respectively arranged at the two ends of the base 1, specifically, at the two ends of the guide rail 21, and are arranged opposite to each other. Two mounting holes are opened on the two mounting plates 62, and the two mounting holes are coaxially arranged. The two nuts 63 are fixed in the two mounting holes by bolts. The two abutting columns 61 are specifically two studs, and the two studs are threadedly connected in the two nuts 63 and are coaxially arranged. One end of the two studs faces the clamping mechanism 4, and the other end is installed with a motor or a handle, and the motor or the handle is used to drive the two studs to rotate.

[0053] When the clamping mechanism 4 clamps the cylinder, the motor or the handle drives the two studs to rotate, respectively bringing the top cover and the bottom cover into contact with the two ends of the cylinder, making the connection structure of the top cover, the bottom cover and the cylinder more stable and less prone to loosening, thus facilitating welding.

[0054] The steps for using the clamp disclosed in the present invention are as follows:

[0055] In the first step, the operator operates the two clamping mechanisms 4 to move to a suitable position along the guide rail 21;

[0056] In the second step, the operator inserts the cylinder into the first slot 431 and the second slot 432, operates the motor or handle of the bidirectional screw 32, drives the bidirectional screw 32 to rotate, and drives the first clamping member 41 and the second clamping member 42 to clamp the cylinder;

[0057] In the third step, the operator operates the motors or handles of the two studs to drive the two studs to respectively abut the top cover and the bottom cover against the cylinder body;

[0058] In the fourth step, the operator welds through the exposed points of the welding port;

[0059] Step 5: operate the motors or handles of the two studs to cancel the abutment of the two studs against the top cover and the bottom cover, and operate the motors of the two bidirectional screw rods 32 to cancel the clamping of the cylinder;

[0060] Step 6: Rotate the cylinder;

[0061] Step 7: operate the motors or handles of the two studs to restore the abutment of the two studs against the top cover and the bottom cover, and operate the motors of the two bidirectional screw rods 32 to restore the clamping of the cylinder;

[0062] The eighth step is to weld the unwelded points through the welding port.

[0063] If more points need to be welded, repeat steps 5 to 8 until the welding strength meets the working requirements.

[0064] The clamp provided by the present invention clamps the cylinder while placing the top cover and the bottom cover against the two ends of the cylinder respectively, so that the top cover, the cylinder and the bottom cover are coaxially arranged. The operator welds the junctions between different components through the welding position 45, and the welding points are clear. The present invention improves the stability of clamping, makes the target device not easy to move during the welding process, and improves the welding yield.

[0065] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of this disclosure can be achieved, and this document is not limited here.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0067] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A clamp, characterized in that: include: A base, connected with two clamping mechanisms and two abutting mechanisms; The two abutment mechanisms include two abutment posts and two mounting plates, the two mounting plates are respectively arranged at two ends of the base, and the two abutment posts are respectively arranged on the two mounting plates and are arranged opposite to each other; The two clamping mechanisms are arranged between the two abutting mechanisms and are arranged opposite to each other, forming two clamping grooves, and the two clamping grooves are coaxially arranged with the two abutting columns; The clamping mechanism is formed with a plurality of welding positions, which are arranged along the circumference of the clamping groove and communicated with the clamping groove.

2. The clamp according to claim 1, characterized in that: The clamp also includes a sliding mechanism; The sliding mechanism comprises a guide rail, a slider and a positioning member; The guide rail is fixed on the base; The slider is slidably connected to the guide rail and connected to the two clamping mechanisms; The positioning member is connected to the slider and is used to fix the slider and the guide rail.

3. The clamp according to claim 2, characterized in that: The guide rails have two, and the two guide rails are arranged in parallel on the base; The sliders are provided in two groups, each group of the sliders has at least two sliders, and each group of the sliders is provided on two guide rails; The two clamping mechanisms are respectively arranged on the two groups of slide blocks.

4. The clamp according to claim 2, characterized in that: The fixture further includes two linear transmission mechanisms; The two linear transmission mechanisms are respectively arranged on the two groups of slide blocks and are respectively connected to the two clamping mechanisms; The clamping mechanism comprises a first clamping member and a second clamping member, wherein the first clamping member and the second clamping member are connected to the linear transmission mechanism, and the first clamping member and the second clamping member cooperate to form the clamping groove.

5. The clamp according to claim 4, characterized in that: The linear transmission mechanism comprises a base, a bidirectional screw rod, a linear slide rail, a first transmission member, a first anti-rotation member, a second transmission member and a second anti-rotation member; The base is fixed on the slider; The linear slide rail is fixed on the base; The bidirectional screw rod is rotatably connected to the base and is arranged parallel to the linear slide rail; The first transmission member and the second transmission member are threadedly connected to the bidirectional screw rod, and the thread directions of the first transmission member and the second transmission member are opposite; The first clamping member is connected to the first transmission member, and the second clamping member is connected to the second transmission member; The first anti-rotation member and the second anti-rotation member are slidably connected to the linear slide rail; The first anti-rotation component is connected to the first transmission component, and the second anti-rotation component is connected to the second clamping component.

6. The clamp according to claim 4, characterized in that: The first clamping member is formed with a first slot; The second clamping member is formed with a second slot; The first slot body and the second slot body are connected to form the clamping slot.

7. The clamp according to claim 6, characterized in that The clamping mechanism forms a limiting sleeve along the notch of the clamping groove; The limiting sleeve has the same shape as the clamping groove and is provided with a plurality of welding positions.

8. The clamp according to claim 7, characterized in that: The first clamping member is formed with a first limiting body, and the first limiting body is arranged around the notch of the first slot body; The second clamping member is formed with a second limiting body, and the second limiting body is arranged around the notch of the second slot body; The first limiting body and the second limiting body are connected to form the limiting sleeve.

9. The clamp according to claim 5, characterized in that: It also includes two rotating mechanisms, which are respectively arranged on the two bases and arranged opposite to each other; The rotating mechanism comprises two supporting members and two rotating members; The two supporting members are connected to the base; The two rotating members are rotatably connected to the two supporting members respectively, are arranged opposite to each other, and are located on both sides of the clamping groove.

10. The clamp according to claim 9, characterized in that The base is provided with two sliding grooves, the two sliding grooves are opposite to each other and are located on both sides of the clamping groove; The two supporting members are connected with a sliding block and a fixing member; The sliding block is slidably connected in the sliding groove; The fixing member is connected to the sliding block and is used to fix the sliding block to the base.

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