A novel clamping device and welding production line

Abstract

This utility model relates to a novel clamping device and welding production line. The novel clamping device includes two support units, several shaft units, several first roller units, several second roller units, several first stop units, and several second stop units. Its advantages are that the first and second stop units can restrict the vertical movement of the first and second roller units, ensuring that they rotate only horizontally, thus improving the stability of the steel's movement. The shaft units have a self-lubricating function, reducing the frictional resistance of the first and second roller units, minimizing wear, preventing eccentric rotation, and ensuring the steel moves in a straight line.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment, and in particular to a novel clamping device and welding production line. Background Technology

[0002] In the field of H-beam welding technology, the accuracy of the steel transfer and positioning device directly affects the welding quality. In existing technologies, common welding transfer and positioning devices typically arrange several rollers on one side of the steel plate. These rollers are mounted on a support via a rotating shaft, and guidance and positioning are achieved through the contact between the rollers and the surface of the steel plate. Specifically, the rollers are mostly steel cylinders with a central hole that directly mates with the rotating shaft. Both ends of the rotating shaft are fixed to the support. When the steel comes into contact with the rollers during transfer, the rollers rotate around the rotating shaft to guide the steel.

[0003] However, this positioning device has the following drawbacks:

[0004] 1) During long-term use, due to the direct contact between the roller and the shaft and the lack of effective lubrication, the contact area will wear down due to continuous friction. After the equipment has been running for a certain period of time, the wear between the inner hole of the roller and the surface of the shaft will cause the roller's horizontal rotation trajectory to gradually change from an initial circle to an ellipse.

[0005] 2) Roller wear can also cause the rollers to move up and down. This unstable movement, transmitted to the steel, can cause vertical fluctuations during transport, leading to changes in the arc length during welding. This can result in defects such as inconsistent weld penetration and porosity, severely impacting the welding quality and finished product yield of H-beams. Furthermore, to address welding quality issues caused by positioning deviations, manual correction processes are often required in production, which not only reduces production efficiency but also increases production costs.

[0006] Currently, no effective solutions have been proposed for the problems existing in related technologies, such as easy wear of rollers, non-circular rotation trajectory of rollers after wear, poor stability of steel movement, and inability of steel to move in a straight line. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by providing a novel clamping device and welding production line, thereby solving problems such as easy wear of rollers, non-circular rotation trajectory of worn rollers, poor stability of steel movement, and inability of steel to move in a straight line.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] In a first aspect, a novel clamping device is provided for use in a welding production line, comprising:

[0010] Two support units are symmetrically arranged.

[0011] A plurality of shaft units are respectively disposed on the corresponding support units and spaced apart along the corresponding support units;

[0012] A plurality of first roller units are movably disposed on the top of the corresponding shaft unit and located on the upper part of the corresponding support unit, and the outer edges of the plurality of first roller units protrude from the support unit.

[0013] A plurality of second roller units are movably disposed at the bottom end of the corresponding shaft unit and located at the lower part of the corresponding support unit, and the outer edges of the plurality of second roller units protrude from the support unit;

[0014] A plurality of first stop units are disposed between the corresponding shaft unit and the corresponding first roller unit, for defining the corresponding first roller unit;

[0015] A plurality of second stop units are disposed between the corresponding shaft unit and the corresponding second roller unit, for defining the corresponding second roller unit.

[0016] In some embodiments, the support unit includes:

[0017] A transverse support element, wherein at least one first roller unit and at least one first stop unit are provided on the upper part of the transverse support element, and at least one second roller unit and at least one second stop unit are provided on the lower part of the transverse support element;

[0018] At least one mounting element is provided, which extends through the transverse support element, for mounting the corresponding shaft unit.

[0019] In some embodiments, the support unit further includes:

[0020] A longitudinal support element is disposed on the side of the transverse support element away from the other support unit and is perpendicular to the transverse support element;

[0021] At least one connecting element is disposed through the longitudinal support element.

[0022] In some embodiments, the support unit further includes:

[0023] At least one openwork element is provided, which extends through the horizontal support element.

[0024] In some embodiments, the shaft unit includes:

[0025] A shaft element is disposed on a corresponding support unit, the top end of the shaft element is movably connected to the corresponding first roller unit, and the bottom end of the shaft element is movably connected to the corresponding second roller unit;

[0026] A first self-lubricating bushing element is disposed between the shaft element and the first roller unit;

[0027] A second self-lubricating bushing element is disposed between the shaft element and the second roller unit.

[0028] In some embodiments, the shaft unit further includes:

[0029] A first limiting element is disposed at the end of the shaft element. The outer diameter of the first limiting element is larger than the outer diameter of the shaft element, and the inner diameter of the first limiting element is equal to the outer diameter of the shaft element. This element is used to prevent the first roller unit or the second roller unit from separating from the shaft element.

[0030] In some embodiments, the shaft unit further includes:

[0031] A second limiting element is disposed at the end of the shaft element. The outer diameter of the second limiting element is equal to the outer diameter of the shaft element, and the inner diameter of the second limiting element is smaller than the outer diameter of the shaft element. This element is used to prevent the first roller unit or the second roller unit from separating from the shaft element.

[0032] In some embodiments, the first roller unit includes:

[0033] A first roller element is movably disposed at the top of the corresponding shaft unit and abuts against the corresponding first stop unit, and is located on the upper part of the corresponding support unit. The outer edge of the first roller element protrudes from the support unit.

[0034] In some embodiments, the first roller unit further includes:

[0035] At least one first protruding element is disposed at the end of the first roller element. The outer diameter of the first protruding element is smaller than the outer diameter of the first roller element, and the inner diameter of the first protruding element is not smaller than the inner diameter of the first roller element, and abuts against the corresponding first stop unit.

[0036] In some embodiments, the second roller unit includes:

[0037] The second roller element is movably disposed at the bottom end of the corresponding shaft unit and abuts against the corresponding second stop unit, and is located at the lower part of the corresponding support unit. The outer edge of the second roller element protrudes from the support unit.

[0038] In some embodiments, the second roller unit further includes:

[0039] At least one second protruding element is disposed at the end of the second roller element. The outer diameter of the second protruding element is smaller than the outer diameter of the second roller element, and the inner diameter of the second protruding element is not smaller than the inner diameter of the second roller element, and abuts against the corresponding second stop unit.

[0040] In some embodiments, the first stop unit includes:

[0041] At least one first stop element is provided, which is sleeved on the corresponding shaft unit and abuts against the end of the corresponding first roller unit to limit the corresponding first roller unit.

[0042] In some embodiments, the second stop unit includes:

[0043] At least one second stop element is provided, which is sleeved on the corresponding shaft unit and abuts against the end of the corresponding second roller unit to limit the corresponding second roller unit.

[0044] In some embodiments, the width of one end of the support unit is smaller than the width of the other end of the support unit.

[0045] Secondly, a welding production line is provided, comprising:

[0046] At least one novel clamping device as described in the first aspect.

[0047] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0048] This utility model discloses a novel clamping device and welding production line. By utilizing a first stop unit and a second stop unit, the vertical movement of the first roller unit and the second roller unit can be restricted, so that the first roller unit and the second roller unit can only rotate in the horizontal direction, thereby improving the movement stability of the steel. The shaft unit is equipped with a self-lubricating function, which reduces the frictional resistance of the first roller unit and the second roller unit, reduces the wear of the first roller unit and the second roller unit, avoids the first roller unit and the second roller unit from rotating in a biased direction, and ensures that the steel moves in a straight line. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of a novel clamping device according to an embodiment of the present utility model;

[0050] Figure 2 This is a cross-sectional view of a novel clamping device according to an embodiment of the present utility model;

[0051] Figure 3 This is a schematic diagram of a support unit according to an embodiment of the present utility model;

[0052] Figure 4 This is a schematic diagram of a shaft unit according to an embodiment of the present utility model;

[0053] Figure 5 This is a cross-sectional view of a shaft unit according to an embodiment of the present utility model;

[0054] Figure 6 This is a schematic diagram of the first roller unit according to an embodiment of the present utility model;

[0055] Figure 7 This is a cross-sectional view of the first roller unit according to an embodiment of the present utility model;

[0056] Figure 8 This is a schematic diagram of the second roller unit according to an embodiment of the present utility model;

[0057] Figure 9 This is a cross-sectional view of the second roller unit according to an embodiment of the present invention.

[0058] Figure 10 This is a schematic diagram of the first stop unit according to an embodiment of the present utility model;

[0059] Figure 11 This is a schematic diagram of the second stop unit according to an embodiment of the present utility model;

[0060] Figure 12 This is a schematic diagram of the usage state of the novel clamping device according to an embodiment of the present utility model;

[0061] Figure 13 This is a partial schematic diagram of a welding production line according to an embodiment of the present utility model.

[0062] The reference numerals in the attached drawings are as follows: 100, support unit; 101, horizontal support element; 102, mounting element; 103, vertical support element; 104, connecting element; 105, hollow element;

[0063] 200. Shaft unit; 201. Shaft element; 202. First self-lubricating bushing element; 203. Second self-lubricating bushing element; 204. First limiting element; 205. Second limiting element;

[0064] 300. First roller unit; 301. First roller element; 302. First protruding element;

[0065] 400. Second roller unit; 401. Second roller element; 402. Second protruding element;

[0066] 500, First stop unit; 501, First stop element;

[0067] 600. Second stop unit; 601. Second stop element;

[0068] A. New type of clamping device; B. Steel. Detailed Implementation

[0069] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0070] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0071] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0072] Example 1

[0073] This embodiment relates to a novel clamping device of the present invention.

[0074] An illustrative embodiment of this utility model, such as Figures 1-2As shown, a novel clamping device for a welding production line includes two support units 100, several shaft units 200, several first roller units 300, several second roller units 400, several first stop units 500, and several second stop units 600. The system comprises two symmetrically arranged support units 100; a plurality of shaft units 200 are respectively disposed on the corresponding support units 100 and spaced apart along the corresponding support units 100; a plurality of first roller units 300 are respectively movably disposed at the top of the corresponding shaft units 200 and located at the upper part of the corresponding support unit 100, with the outer edges of the plurality of first roller units 300 protruding from the support unit 100; a plurality of second roller units 400 are respectively movably disposed at the bottom of the corresponding shaft units 200 and located at the lower part of the corresponding support unit 100, with the outer edges of the plurality of second roller units 400 protruding from the support unit 100; a plurality of first stop units 500 are disposed between the corresponding shaft units 200 and the corresponding first roller units 300 to limit the corresponding first roller units 300; and a plurality of second stop units 600 are disposed between the corresponding shaft units 200 and the corresponding second roller units 400 to limit the corresponding second roller units 400.

[0075] In some of these embodiments, the width of one end of the support unit 100 is smaller than the width of the other end of the support unit 100.

[0076] In some of these embodiments, the width of the support unit 100 remains constant from one end to the middle and decreases from the middle to the other end.

[0077] In some of these embodiments, the cross-section of the support unit 100 is trapezoidal.

[0078] The number of shaft units 200 matches the number of support units 100. Generally, the number of shaft units 200 is an integer multiple of the number of support units 100. That is, each support unit 100 is provided with at least one shaft unit 200. When each support unit 100 is provided with a plurality of shaft units 200, the plurality of shaft units 200 are spaced apart along the length direction of the support unit 100.

[0079] Generally, the number of shaft units 200 located in a support unit 100 is equal to the number of shaft units 200 located in a support unit 100, and the shaft units 200 of two support units 100 correspond one-to-one.

[0080] The number of first roller units 300 matches the number of shaft units 200. Generally, the number of first roller units 300 is equal to the number of shaft units 200.

[0081] The number of second roller units 400 matches the number of shaft units 200. Generally, the number of second roller units 400 is equal to the number of shaft units 200.

[0082] The number of first stop units 500 matches the number of shaft units 200 (first roller units 300). Generally, the number of first stop units 500 is equal to the number of shaft units 200 (first roller units 300).

[0083] The number of second stop units 600 matches the number of shaft units 200 (second roller units 400). Generally, the number of second stop units 600 is equal to the number of shaft units 200 (second roller units 400).

[0084] like Figure 3 As shown, the support unit 100 includes a transverse support element 101 and at least one mounting element 102. The upper part of the transverse support element 101 is provided with at least one first roller unit 300 and at least one first stop unit 500, and the lower part of the transverse support element 101 is provided with at least one second roller unit 400 and at least one second stop unit 600. The mounting element 102 passes through the transverse support element 101 and is used to mount the corresponding shaft unit 200.

[0085] In some of these embodiments, the width of one end of the lateral support element 101 is smaller than the width of the other end of the lateral support element 101.

[0086] In some of these embodiments, the width of the transverse support element 101 remains constant from one end to the middle and decreases from the middle to the other end.

[0087] In some of these embodiments, the cross-section of the transverse support element 101 is a right trapezoid.

[0088] In some embodiments, the longitudinal section of the transverse support element 101 is convex. Specifically, the thickness of the short side of the transverse support element 101 is greater than the thickness of the long side of the transverse support element 101.

[0089] In some embodiments, the long side of the transverse support element 101 corresponds to the long side of the transverse support element 101 of another support unit 100. That is, viewed from a top view, the two transverse support elements 101 form a shape composed of rectangles and isosceles trapezoids or isosceles triangles, similar to a house shape, i.e., a structure that is narrow at the top and wide at the bottom.

[0090] In some embodiments, the lateral support element 101 includes a lateral support member, a first recessed member, and a second recessed member. The lateral support member is provided with a mounting element 102; the first recessed member is located at the top end of the lateral support member; and the second recessed member is located at the bottom end of the lateral support member.

[0091] The dimensions of the first grooved member match the dimensions of the transverse support member. Generally, the length of the first grooved member is equal to the length of the transverse support member, the width of the first grooved member is at most less than the maximum width of the transverse support member, and the depth of the first grooved member is less than the thickness of the transverse support member.

[0092] The dimensions of the second groove are matched with those of the first groove. Generally, the length of the second groove is equal to the length of the first groove, the width of the second groove is equal to the width of the first groove, and the depth of the second groove is equal to the depth of the first groove.

[0093] Generally, the sum of the depth of the second groove and the depth of the first groove is less than the thickness of the transverse support.

[0094] In some of these embodiments, the lateral support element 101 is made of a high-strength, corrosion-resistant material, including but not limited to stainless steel.

[0095] In some of these embodiments, the lateral support element 101 includes, but is not limited to, a lateral support.

[0096] Generally, the cross-section of the mounting element 102 is circular.

[0097] Mounting element 102 is disposed through the upper and lower surfaces of the transverse support element 101.

[0098] In some embodiments, there are multiple mounting elements 102. The multiple mounting elements 102 are spaced apart along the length of the transverse support element 101.

[0099] The number of mounting elements 102 matches the number of shaft units 200. Generally, the number of mounting elements 102 × the number of support units 100 is at least equal to the number of shaft units 200. That is, the number of mounting elements 102 × 2 ≥ the number of shaft units 200.

[0100] That is, several mounting elements 102 can be set on the horizontal support element 101, and the shaft unit 200 can be installed on the specific mounting element 102 according to the actual use needs.

[0101] In some of these embodiments, the mounting element 102 includes, but is not limited to, mounting holes.

[0102] Furthermore, the support unit 100 also includes a longitudinal support element 103 and at least one connecting element 104. The longitudinal support element 103 is disposed on the side of the transverse support element 101 away from the other support unit 100 and is disposed perpendicular to the transverse support element 101; the connecting element 104 is disposed through the longitudinal support element 103.

[0103] The top end of the longitudinal support element 103 protrudes beyond the top end of the transverse support element 101, and the bottom end of the longitudinal support element 103 protrudes beyond the bottom end of the transverse support element 101. That is, the longitudinal support element 103 and the transverse support element 101 form a convex structure.

[0104] The longitudinal support element 103 is fixedly connected to the transverse support element 101, including but not limited to welding, integral molding, etc.

[0105] The dimensions of the longitudinal support element 103 are matched with the dimensions of the transverse support element 101. Generally, the height of the longitudinal support element 103 is greater than the height of the transverse support element 101, and the length of the longitudinal support element 103 is not greater than the length of the shorter side of the transverse support element 101.

[0106] In some of these embodiments, the longitudinal support element 103 includes, but is not limited to, a longitudinal support, a longitudinal mounting plate, etc.

[0107] The connecting element 104 is disposed through the left and right surfaces of the longitudinal support element 103. (The left and right direction is the width direction of the transverse support element 101).

[0108] In some embodiments, there are multiple connecting elements 104. The multiple connecting elements 104 are spaced apart along the length and / or height direction of the longitudinal support element 103.

[0109] Preferably, a plurality of connecting elements 104 are arranged in an array. Specifically, at least one connecting element 104 is located on the upper part of the horizontal support element 101, and at least one connecting element 104 is located on the lower part of the horizontal support element 101.

[0110] In some of these embodiments, the connecting element 104 includes, but is not limited to, threaded holes, connecting holes, connecting grooves, etc.

[0111] Furthermore, the support unit 100 also includes at least one hollow element 105. The hollow element 105 is disposed through the horizontal support element 101.

[0112] The hollow element 105 is set through the upper and lower surfaces of the horizontal support element 101.

[0113] In some embodiments, there are multiple hollow elements 105. The multiple hollow elements 105 are spaced apart along the length direction of the transverse support element 101.

[0114] In some of these embodiments, the cutout element 105 is disposed near the central axis of the transverse support element 101.

[0115] In some of the embodiments, the cutout element 105 includes, but is not limited to, cutout holes and cutout grooves.

[0116] like Figures 4-5 As shown, the shaft unit 200 includes a shaft element 201, a first self-lubricating bushing element 202, and a second self-lubricating bushing element 203. The shaft element 201 is disposed on the corresponding support unit 100, with its top end movably connected to the corresponding first roller unit 300 and its bottom end movably connected to the corresponding second roller unit 400. The first self-lubricating bushing element 202 is disposed between the shaft element 201 and the first roller unit 300; the second self-lubricating bushing element 203 is disposed between the shaft element 201 and the second roller unit 400.

[0117] Specifically, the shaft element 201 is disposed on the corresponding mounting element 102; the first self-lubricating bushing element 202 is located on the upper part of the transverse support element 101; and the second self-lubricating bushing element 203 is located on the lower part of the transverse support element 101.

[0118] The shaft element 201 is detachably connected to the mounting element 102, including but not limited to plug-in connection.

[0119] Furthermore, the shaft element 201 and the mounting element 102 can be rotatably connected. That is, when the shaft element 201 is mounted on the mounting element 102, the shaft element 201 and the mounting element 102 can remain relatively stationary or rotate relative to each other (i.e., the shaft element 201 rotates).

[0120] The dimensions of the shaft element 201 are matched with the dimensions of the mounting element 102. Generally, the outer diameter of the shaft element 201 is equal to the diameter of the mounting element 102, and the height of the shaft element 201 is greater than the depth of the mounting element 102.

[0121] In some of these embodiments, shaft element 201 includes, but is not limited to, pins.

[0122] The first self-lubricating bushing element 202 is detachably connected to the shaft element 201, including but not limited to nested connection.

[0123] Furthermore, the first self-lubricating bushing element 202 can be rotatably connected to the shaft element 201. That is, when the first self-lubricating bushing element 202 is installed on the shaft element 201, the first self-lubricating bushing element 202 and the shaft element 201 can remain relatively stationary, or they can rotate relative to each other (i.e., the first self-lubricating bushing element 202 rotates relative to the shaft element 201). Generally, the first self-lubricating bushing element 202 rotates relative to the shaft element 201.

[0124] The dimensions of the first self-lubricating bushing element 202 are matched with the dimensions of the shaft element 201. Generally, the inner diameter of the first self-lubricating bushing element 202 is equal to the outer diameter of the shaft element 201, and the height of the first self-lubricating bushing element 202 is less than the height of the shaft element 201.

[0125] In some of these embodiments, the first self-lubricating bushing element 202 includes, but is not limited to, a self-lubricating bushing.

[0126] The second self-lubricating bushing element 203 is detachably connected to the shaft element 201, including but not limited to nested connection.

[0127] Furthermore, the second self-lubricating bushing element 203 can be rotatably connected to the shaft element 201. That is, when the second self-lubricating bushing element 203 is installed on the shaft element 201, the second self-lubricating bushing element 203 and the shaft element 201 can remain relatively stationary, or they can rotate relative to each other (i.e., the second self-lubricating bushing element 203 rotates). Generally, the second self-lubricating bushing element 203 rotates relative to the shaft element 201.

[0128] The dimensions of the second self-lubricating bushing element 203 are matched with the dimensions of the shaft element 201. Generally, the inner diameter of the second self-lubricating bushing element 203 is equal to the outer diameter of the shaft element 201, and the height of the second self-lubricating bushing element 203 is less than the height of the shaft element 201.

[0129] The dimensions of the second self-lubricating bushing element 203 are matched with the dimensions of the first self-lubricating bushing element 202. Generally, the outer diameter of the second self-lubricating bushing element 203 is equal to the outer diameter of the first self-lubricating bushing element 202, and the height of the second self-lubricating bushing element 203 is equal to the height of the first self-lubricating bushing element 202.

[0130] In some of these embodiments, the second self-lubricating bushing element 203 includes, but is not limited to, a self-lubricating bushing.

[0131] Furthermore, the shaft unit 200 also includes a first limiting element 204. The first limiting element 204 is disposed at the end of the shaft element 201. The outer diameter of the first limiting element 204 is larger than the outer diameter of the shaft element 201, and the inner diameter of the first limiting element 204 is equal to the outer diameter of the shaft element 201, in order to prevent the first roller unit 300 or the second roller unit 400 from separating from the shaft element 201.

[0132] In some of these embodiments, the first limiting element 204 abuts against the first stop unit 500 or the second stop unit 600.

[0133] The first limiting element 204 is fixedly connected to the shaft element 201, including but not limited to being integrally formed.

[0134] The height of the first limiting element 204 is less than the height of the shaft element 201.

[0135] The dimensions of the first limiting element 204 are matched with the dimensions of the first self-lubricating bushing element 202 (the second self-lubricating bushing element 203). Generally, the outer diameter of the first limiting element 204 is larger than the outer diameter of the first self-lubricating bushing element 202 (the second self-lubricating bushing element 203).

[0136] In some of these embodiments, the first limiting element 204 includes, but is not limited to, a limiting plate.

[0137] Furthermore, the shaft unit 200 also includes a second limiting element 205. The second limiting element 205 is disposed at the end of the shaft element 201, the outer diameter of the second limiting element 205 is equal to the outer diameter of the shaft element 201, and the inner diameter of the second limiting element 205 is smaller than the outer diameter of the shaft element 201, for preventing the first roller unit 300 or the second roller unit 400 from separating from the shaft element 201.

[0138] The second limiting element 205 is located at the end of the shaft element 201.

[0139] The height of the second limiting element 205 is less than the height of the shaft element 201.

[0140] In some of these embodiments, the second limiting element 205 includes, but is not limited to, a limiting groove.

[0141] In one embodiment of this utility model, a first limiting element 204 is disposed at the top end of the shaft element 201 and abuts against the first stop unit 500; a second limiting element 205 is disposed at the bottom end of the shaft element 201 and is used for detachable connection (such as threaded connection, snap-fit, etc.) with other structures (such as nuts) so that other structures abut against the second stop unit 600. The purpose of this arrangement is to facilitate the separation of the shaft element 201 from the mounting element 102, thereby facilitating the replacement of the first self-lubricating bushing element 202, the second self-lubricating bushing element 203, the first roller unit 300, and the second roller unit 400.

[0142] like Figures 6-7 As shown, the first roller unit 300 includes a first roller element 301. The first roller element 301 is movably disposed on the top of the corresponding shaft unit 200 and abuts against the corresponding first stop unit 500, and is located on the upper part of the corresponding support unit 100. The outer edge of the first roller element 301 protrudes from the support unit 100.

[0143] Specifically, the first roller element 301 is movably disposed at the top of the corresponding shaft element 201.

[0144] The first roller element 301 is detachably connected to the first self-lubricating bushing element 202, including but not limited to nested connection.

[0145] In addition, the first roller element 301 and the first self-lubricating bushing element 202 can be rotationally connected. That is, when the first roller element 301 is installed on the first self-lubricating bushing element 202, the first roller element 301 and the first self-lubricating bushing element 202 can remain relatively stationary or can rotate relative to each other (i.e., the first roller element 301 rotates). When the first roller element 301 and the first self-lubricating bushing element 202 remain relatively stationary, the first roller element 301 and the first self-lubricating bushing element 202 rotate relative to the shaft element 201 together.

[0146] That is, at least the first roller element 301 rotates, and whether the first self-lubricating bushing element 202 rotates can be adjusted according to the actual usage situation.

[0147] The size of the first roller element 301 matches the size of the first self-lubricating bushing element 202. Generally, the inner diameter of the first roller element 301 is equal to the outer diameter of the first self-lubricating bushing element 202, and the height of the first roller element 301 is not greater than the height of the first self-lubricating bushing element 202.

[0148] In some of the embodiments, the first roller element 301 includes, but is not limited to, rollers, such as rubber rollers.

[0149] Furthermore, the first roller unit 300 further includes at least one first protrusion element 302. Among them, the first protrusion element 302 is disposed at the end of the first roller element 301. The outer diameter of the first protrusion element 302 is smaller than the outer diameter of the first roller element 301, and the inner diameter of the first protrusion element 302 is not less than the inner diameter of the first roller element 301 and abuts against the corresponding first stop unit 500.

[0150] The first protrusion element 302 and the first roller element 301 are coaxially arranged.

[0151] The first protrusion element 302 and the first roller element 301 are fixedly connected, including but not limited to being integrally formed.

[0152] In some of the embodiments, there are two first protrusion elements 302. One first protrusion element 302 is disposed at the top of the first roller element 301, and one first protrusion element 302 is disposed at the bottom of the first roller element 301. That is, the cross-section of the first roller unit 300 is in the shape of a Chinese character 'zhong'.

[0153] In some of the embodiments, the first protrusion element 302 includes, but is not limited to, abutting protrusions, abutting convex rings, etc.

[0154] Such as Figures 8-9As shown, the second roller unit 400 includes a second roller element 401. The second roller element 401 is movably disposed at the bottom end of the corresponding shaft unit 200 and abuts against the corresponding second stop unit 600, and is located at the lower part of the corresponding support unit 100. The outer edge of the second roller element 401 protrudes from the support unit 100.

[0155] Specifically, the second roller element 401 is movably disposed at the bottom end of the corresponding shaft element 201.

[0156] The second roller element 401 is detachably connected to the second self-lubricating bushing element 203, including but not limited to nested connection.

[0157] Furthermore, the second roller element 401 and the second self-lubricating bushing element 203 can be rotatably connected. That is, when the second roller element 401 is installed on the second self-lubricating bushing element 203, the second roller element 401 and the second self-lubricating bushing element 203 can remain relatively stationary or rotate relative to each other (i.e., the second roller element 401 rotates). When the second roller element 401 and the second self-lubricating bushing element 203 remain relatively stationary, the second roller element 401 and the second self-lubricating bushing element 203 rotate together relative to the shaft element 201.

[0158] That is, at least the second roller element 401 rotates, and whether the second self-lubricating bushing element 203 rotates can be adjusted according to the actual use.

[0159] The dimensions of the second roller element 401 are matched with the dimensions of the second self-lubricating bushing element 203. Generally, the inner diameter of the second roller element 401 is equal to the outer diameter of the second self-lubricating bushing element 203, and the height of the second roller element 401 is not greater than the height of the second self-lubricating bushing element 203.

[0160] The dimensions of the second roller element 401 are matched with those of the first roller element 301. Generally, the outer diameter of the second roller element 401 is equal to the outer diameter of the first roller element 301.

[0161] In some of these embodiments, the second roller element 401 includes, but is not limited to, a roller, such as a rubber roller.

[0162] Furthermore, the second roller unit 400 also includes at least one second protruding element 402. The second protruding element 402 is disposed at the end of the second roller element 401, the outer diameter of the second protruding element 402 is smaller than the outer diameter of the second roller element 401, the inner diameter of the second protruding element 402 is not smaller than the inner diameter of the second roller element 401, and abuts against the corresponding second stop unit 600.

[0163] The second protruding element 402 is coaxially arranged with the second roller element 401.

[0164] The second protruding element 402 is fixedly connected to the second roller element 401, including but not limited to integrally formed.

[0165] In some embodiments, there are two second protruding elements 402. One second protruding element 402 is arranged at the top of the second roller element 401, and one second protruding element 402 is arranged at the bottom of the second roller element 401. That is, the cross-section of the first roller unit 300 is in the shape of a Chinese character 'zhong'.

[0166] The size of the second protruding element 402 matches the size of the first protruding element 302. Generally, the outer diameter of the second protruding element 402 is equal to the outer diameter of the first protruding element 302, and the height of the second protruding element 402 is equal to the height of the first protruding element 302.

[0167] In some embodiments, the second protruding element 402 includes but not limited to abutting protrusions, abutting convex rings, etc.

[0168] As Figure 10 shown, the first stop unit 500 includes at least one first stop element 501. Among them, the first stop element 501 is sleeved on the corresponding shaft unit 200 and abuts against the end of the corresponding first roller unit 300 for limiting the corresponding first roller unit 300.

[0169] Specifically, the first stop element 501 is sleeved on the corresponding shaft element 201 and abuts against the end of the corresponding first roller element 301.

[0170] More specifically, the first stop element 501 abuts against the corresponding first self-lubricating bushing element 202, the corresponding first limiting element 204, and the corresponding first protruding element 302 respectively, and / or the first stop element 501 abuts against the corresponding lateral support element 101, the corresponding first self-lubricating bushing element 202, and the corresponding first protruding element 302 respectively.

[0171] The size of the first stop element 501 matches the size of the shaft element 201. Generally, the inner diameter of the first stop element 501 is equal to the outer diameter of the shaft element 201, and the height of the first stop element 501 is less than the height of the shaft element 201.

[0172] The size of the first stop element 501 matches the size of the first limiting element 204. Generally, the outer diameter of the first stop element 501 is greater than the outer diameter of the first limiting element 204.

[0173] The dimensions of the first stop element 501 are matched with the dimensions of the first protrusion element 302. Generally, the outer diameter of the first stop element 501 is equal to the outer diameter of the first protrusion element 302.

[0174] In some embodiments, there are two first stop elements 501. One first stop element 501 is disposed between the first limiting element 204 and the top end (first protrusion element 302) of the first roller element 301, and the other first stop element 501 is disposed between the transverse support element 101 and the bottom end (first protrusion element 302) of the first roller element 301.

[0175] In some of these embodiments, the first stop element 501 includes, but is not limited to, a thrust washer.

[0176] like Figure 11 As shown, the second stop unit 600 includes at least one second stop element 601. The second stop element 601 is sleeved on the corresponding shaft unit 200 and abuts against the end of the corresponding second roller unit 400 to limit the corresponding second roller unit 400.

[0177] Specifically, the second stop element 601 is sleeved on the corresponding shaft element 201 and abuts against the end of the corresponding second roller element 401.

[0178] More specifically, the second stop element 601 abuts against the corresponding second self-lubricating bushing element 203 and the corresponding second protruding element 402, and / or the second stop element 601 abuts against the corresponding transverse support element 101, the corresponding second self-lubricating bushing element 203 and the corresponding second protruding element 402, respectively.

[0179] The dimensions of the second stop element 601 are matched with the dimensions of the shaft element 201. Generally, the inner diameter of the second stop element 601 is equal to the outer diameter of the shaft element 201, and the height of the second stop element 601 is less than the height of the shaft element 201.

[0180] The dimensions of the second stop element 601 are matched with the dimensions of the second protrusion element 402. Generally, the outer diameter of the second stop element 601 is equal to the outer diameter of the second protrusion element 402.

[0181] The dimensions of the second stop element 601 are matched with the dimensions of the first stop element 501. Generally, the outer diameter of the second stop element 601 is equal to the outer diameter of the first stop element 501, and the height of the second stop element 601 is equal to the height of the first stop element 501.

[0182] In some embodiments, there are two second stop elements 601. One second stop element 601 is disposed between the first limiting element 204 and the top end (second protrusion element 402) of the second roller element 401, and the other second stop element 601 is disposed between the bottom end (second protrusion element 402) of the second roller element 401 and other structures (such as nuts) mounted on the shaft element 201.

[0183] In some of these embodiments, the second stop element 601 includes, but is not limited to, a thrust washer.

[0184] like Figure 12 As shown, the method of using this utility model is as follows:

[0185] The production of H-beams requires two welding processes. The first welding process involves welding the bottom end of a vertical steel plate to the top end of a horizontal steel plate to form a convex structure. The second welding process involves welding the bottom end of another horizontal steel plate to the top end of a vertical steel plate to form an H-shaped structure.

[0186] After the first welding process is completed, the steel material B with the convex structure needs to be transferred. During the transfer process, the vertical steel plate will be guided and clamped by a number of first roller elements 301 and a number of second roller elements 401 of the new clamping device A, thereby adjusting the position of the steel material B to facilitate the subsequent second welding process.

[0187] Due to the presence of the first self-lubricating bushing element 202 and the second self-lubricating bushing element 203, the direct contact between the first roller element 301, the second roller element 401 and the shaft element 201 is reduced, the wear of the inner edge surfaces of the first roller element 301 and the second roller element 401 is reduced, thereby preventing the first roller element 301 and the second roller element 401 from rotating in a biased direction, and ensuring that the steel B moves in a straight line.

[0188] Due to the presence of the first stop element 501 and the second stop element 601, the vertical movement of the first roller element 301 and the second roller element 401 is reduced, so that the first roller element 301 and the second roller element 401 only rotate in the horizontal direction, thereby improving the positional stability of steel B.

[0189] The technical effects of this utility model are as follows:

[0190] 1) The first stop unit and the second stop unit can be used to restrict the up and down movement of the first roller unit and the second roller unit, so that the first roller unit and the second roller unit can only rotate in the horizontal direction, thereby improving the positional stability of the steel.

[0191] 2) The shaft unit is equipped with a self-lubricating function, which reduces the frictional resistance of the first roller unit and the second roller unit, reduces the wear of the first roller unit and the second roller unit, avoids the first roller unit and the second roller unit from rotating in a biased manner, and ensures that the steel moves in a straight line.

[0192] Example 2

[0193] This embodiment relates to the welding production line of this utility model.

[0194] like Figure 13 As shown, a welding production line includes at least one novel clamping device A as described in Example 1.

[0195] When there are several novel clamping devices A, the novel clamping devices A are arranged at intervals along the process direction of the welding production line.

[0196] The usage method of this embodiment is basically the same as that of Embodiment 1, and will not be repeated here.

[0197] The technical effects of this embodiment are basically the same as those of Embodiment 1, and will not be repeated here.

[0198] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel clamping device for use in a welding production line, characterized in that, include: Two support units are symmetrically arranged. A plurality of shaft units are respectively disposed on the corresponding support units and spaced apart along the corresponding support units; A plurality of first roller units are movably disposed on the top of the corresponding shaft unit and located on the upper part of the corresponding support unit, and the outer edges of the plurality of first roller units protrude from the support unit. A plurality of second roller units are movably disposed at the bottom end of the corresponding shaft unit and located at the lower part of the corresponding support unit, and the outer edges of the plurality of second roller units protrude from the support unit; A plurality of first stop units are disposed between the corresponding shaft unit and the corresponding first roller unit, for defining the corresponding first roller unit; A plurality of second stop units are disposed between the corresponding shaft unit and the corresponding second roller unit, for defining the corresponding second roller unit.

2. The novel clamping device according to claim 1, characterized in that, The support unit includes: A transverse support element, wherein at least one first roller unit and at least one first stop unit are provided on the upper part of the transverse support element, and at least one second roller unit and at least one second stop unit are provided on the lower part of the transverse support element; At least one mounting element is provided, which extends through the transverse support element, for mounting the corresponding shaft unit.

3. The novel clamping device according to claim 2, characterized in that, The support unit also includes: A longitudinal support element is disposed on the side of the transverse support element away from the other support unit and is perpendicular to the transverse support element; At least one connecting element, the connecting element being disposed through the longitudinal support element; and / or At least one openwork element is provided, which extends through the horizontal support element.

4. The novel clamping device according to claim 1, characterized in that, The shaft unit includes: A shaft element is disposed on a corresponding support unit, the top end of the shaft element is movably connected to the corresponding first roller unit, and the bottom end of the shaft element is movably connected to the corresponding second roller unit; a first self-lubricating bushing element is disposed between the shaft element and the first roller unit; A second self-lubricating bushing element is disposed between the shaft element and the second roller unit.

5. The novel clamping device according to claim 4, characterized in that, The shaft unit also includes: A first limiting element, disposed at the end of the shaft element, has an outer diameter larger than the outer diameter of the shaft element and an inner diameter equal to the outer diameter of the shaft element, for preventing the first roller unit or the second roller unit from separating from the shaft element; and / or A second limiting element is disposed at the end of the shaft element. The outer diameter of the second limiting element is equal to the outer diameter of the shaft element, and the inner diameter of the second limiting element is smaller than the outer diameter of the shaft element. This element is used to prevent the first roller unit or the second roller unit from separating from the shaft element.

6. The novel clamping device according to claim 1, characterized in that, The first roller unit includes: A first roller element is movably disposed at the top end of the corresponding shaft unit and abuts against the corresponding first stop unit, and is located on the upper part of the corresponding support unit. The outer edge of the first roller element protrudes from the support unit; and / or The second roller unit includes: The second roller element is movably disposed at the bottom end of the corresponding shaft unit and abuts against the corresponding second stop unit, and is located at the lower part of the corresponding support unit. The outer edge of the second roller element protrudes from the support unit.

7. The novel clamping device according to claim 6, characterized in that, The first roller unit further includes: At least one first protruding element is disposed at the end of the first roller element. The outer diameter of the first protruding element is smaller than the outer diameter of the first roller element, and the inner diameter of the first protruding element is not smaller than the inner diameter of the first roller element, and abuts against the corresponding first stop unit; and / or The second roller unit also includes: At least one second protruding element is disposed at the end of the second roller element. The outer diameter of the second protruding element is smaller than the outer diameter of the second roller element, and the inner diameter of the second protruding element is not smaller than the inner diameter of the second roller element, and abuts against the corresponding second stop unit.

8. The novel clamping device according to claim 1, characterized in that, The first stop unit includes: At least one first stop element, which is sleeved on the corresponding shaft unit and abuts against the end of the corresponding first roller unit, for defining the corresponding first roller unit; and / or The second stop unit includes: At least one second stop element is provided, which is sleeved on the corresponding shaft unit and abuts against the end of the corresponding second roller unit to limit the corresponding second roller unit.

9. The novel clamping device according to any one of claims 1 to 8, characterized in that, The width of one end of the support unit is smaller than the width of the other end of the support unit.

10. A welding production line, characterized in that, include: At least one novel clamping device as described in any one of claims 1 to 9.

Images