Auxiliary tool for welding bicycle frame

Abstract

The invention discloses a bicycle frame welding auxiliary tool, and relates to the technical field of bicycles, the bicycle frame welding auxiliary tool comprises a loading plate, a fixing frame is fixedly mounted at the top of the loading plate, a rotating rod rotatably penetrates through the inner wall and the outer wall of the fixing frame, and a cylinder is fixedly mounted on the surface of the rotating rod; a first volute spiral spring is arranged between the rotating rod and the fixing frame, a sliding groove is formed in the top of the loading plate, a rectangular groove is formed in the circumferential face of the cylinder, and a clamping device is further included. Wherein the clamping device comprises a mounting frame, an electric push rod, a cylindrical rod, a push disc, a first spring, a contact rod, an abutting plate, a connecting pipe, a supporting rod, a limiting plate and a second spring, the limiting plate is accurately matched with the push disc, it is effectively guaranteed that the frame is stably clamped in the machining process, and the situation that the frame is damaged due to excessive movement or unstable clamping force is prevented; and therefore, the clamping efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bicycles, in particular to a bicycle frame welding auxiliary tool. Background Art

[0002] Bicycle frame welding auxiliary tooling is a special equipment used to improve the accuracy, efficiency and stability of bicycle frame welding. By providing support, positioning and clamping functions, it ensures that the various frame components can maintain the correct position and angle during the welding process, avoids welding deformation or errors, and thus ensures the quality of frame welding.

[0003] The patent with patent announcement number CN217167188U relates to a bicycle frame welding tool, including a workbench, and two clamping plates are arranged on the top surface of the workbench. The two clamping plates are symmetrically arranged on the top surface of the workbench, and multiple sliding rods are fixedly installed on one side of the two clamping plates. A buffer plate is arranged on one side of the two clamping plates, and the two buffer plates are respectively slidably connected with the multiple sliding rods. The outer side walls of the multiple sliding rods are provided with springs, and one end of the multiple springs is respectively fixedly connected with one side of the two clamping plates. The bicycle frame is placed on the top surface of the workbench and the handle is turned. At this time, the handle will drive the screw rod to rotate. When the screw rod rotates, the two threaded sleeves will drive the two clamping plates to move, which is convenient for adjusting the distance between the two clamping plates and convenient for clamping the bicycle frame. When the bicycle frame is clamped, the cooperation of the spring, the buffer plate and the sliding rod can play a buffering role to avoid damage to the bicycle frame caused by excessive clamping.

[0004] The above patent has the function of preventing the bicycle frame from being damaged due to over-tightening. When clamping the bicycle frame, the spring, buffer plate and slide rod can play a buffering role, thereby preventing the bicycle frame from being damaged due to excessive clamping force. However, during the clamping process, the operator needs to actively judge the moving distance of the clamping plate according to the actual situation and make multiple adjustments. This process not only increases the complexity of the operation, but also leads to prolonged downtime, thereby affecting the overall efficiency of the welding operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a bicycle frame welding auxiliary tooling, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bicycle frame welding auxiliary tooling, including a loading plate, a fixing frame is fixedly installed on the top of the loading plate, a rotating rod is rotatably penetrated through the inner and outer walls of the fixing frame, a cylinder is fixedly installed on the surface of the rotating rod, a No. 1 volute spring is arranged between the rotating rod and the fixing frame, the rotating rod is held and rotated upward, the rotating rod stretches the No. 1 volute spring during rotation, and the No. 1 volute spring is deformed by the stretching, a sliding groove is provided on the top of the loading plate, a rectangular groove is provided on the circumferential surface of the cylinder, and a clamping device is also included; wherein, the clamping device includes a mounting frame, an electric push rod, a cylindrical rod, a push plate, a No. 1 spring, a contact rod, a stop plate, a connecting tube, a support The invention relates to a method of manufacturing a plurality of cylinders, wherein the cylinders are fixedly mounted on the top of the loading plate, the electric push rod is arranged on the surface of the mounting frame, the cylindrical rod is fixedly mounted on the output end of the electric push rod, the push plate slides through the inner and outer walls of the cylindrical rod, the No. 1 spring is arranged between the push plate and the cylindrical rod, the contact rod is fixedly mounted on the side of the cylindrical rod away from the electric push rod, the abutment plate is fixedly mounted on the side of the push plate close to the mounting frame, the connecting tube is fixedly mounted on the circumferential surface of the cylindrical rod, the support rod is fixedly mounted on the bottom of the connecting tube, the limit plate slides through the bottom of the connecting tube, the No. 2 spring is arranged between the limit plate and the connecting tube, the limit plate stretches the No. 2 spring during movement, and the No. 2 spring is deformed due to the stretching.

[0007] According to the above technical solution, the circumferential surface of the support rod contacts the inner wall of the slide groove. When the support rod moves, the loading plate provides support for the support rod through the slide groove. The side of the support plate close to the limiting plate is provided with an inclined surface 1, and the side of the limiting plate close to the support plate is provided with an arc surface 1. The arc surface 1 of the limiting plate contacts the inclined surface 1 of the support plate during movement, and the inclined surface 1 applies resistance to the moving arc surface 1.

[0008] According to the above technical solution, a limiting groove is provided on the top of the loading plate, and a second inclined surface is provided on the bottom of the limiting plate. The second inclined surface is adapted to the size of the limiting groove. The second inclined surface of the limiting plate contacts the inner wall of the limiting groove during movement, and the limiting plate is blocked and stops moving, causing the cylindrical rod to stop moving.

[0009] According to the above technical scheme, it also includes a stabilizing device and a locking device; the stabilizing device includes a long rod, a telescopic rod, a No. 3 spring, a rectangular block, a telescopic plate, a rubber sheet, a connecting rod, a knocking sheet and a plurality of blocking blocks, the contact rod moves and contacts the telescopic rod, so that the contact rod moves and drives the telescopic rod to move in the direction of the cylinder, the long rod is fixedly penetrated through the inner and outer walls of the cylinder, the telescopic rod slides through the side of the long rod away from the cylinder, the No. 3 spring is arranged between the telescopic rod and the long rod, the rectangular block is fixedly installed on the circumferential surface of the telescopic rod, the telescopic plate slides through the circumferential surface of the long rod, the rubber sheet is fixedly installed on the side of the telescopic plate away from the telescopic rod, the connecting rod is slidably installed inside the long rod, the knocking sheet is fixedly installed on the circumferential surface of the connecting rod, and a plurality of blocking blocks are fixedly installed on the inner wall of the long rod, the side of the connecting rod away from the cylinder is fixedly connected to the telescopic rod, the knocking sheet itself has elasticity, and the knocking sheet continues to move and deform under the influence of the blocking block, and the knocking sheet stores energy during the deformation process.

[0010] According to the above technical solution, a third inclined surface is provided on one side of the rectangular block close to the connecting rod, and a second curved surface is provided on one side of the telescopic plate close to the telescopic rod. The third inclined surface of the rectangular block contacts the second curved surface of the telescopic plate during movement, and the third inclined surface moves to squeeze the second curved surface. The rubber sheet is arranged in an arc shape, and the inner concave surface of the rubber sheet contacts the circumferential surface of the long rod.

[0011] According to the above technical solution, the knocking piece is arranged in an arc shape, and the movement of the telescopic rod drives the knocking piece to move in the direction of the cylinder. The inner concave surface of the knocking piece contacts the blocking block during the movement. A circular hole is provided on the circumferential surface of the long rod, a card groove is provided on the circumferential surface of the connecting rod, and a slope four is provided on the side of the connecting rod away from the telescopic rod.

[0012] According to the above technical scheme, the locking device includes a carrying plate, a lifting rod, a No. 4 spring, a limiting rod, a handle, a block and a limiting plate. The lifting rod stretches the No. 4 spring during movement, and the No. 4 spring is deformed by the stretching. At the same time, the lifting rod moves to drive the handle to move upward. The carrying plate is fixedly installed in the rectangular groove, the lifting rod is slidably installed to pass through the inner and outer walls of the carrying plate, the No. 4 spring is arranged between the lifting rod and the carrying plate, the limiting rod is fixedly installed at the bottom of the lifting rod, the handle is rotatably installed at the top of the lifting rod, the block is fixedly installed on the circumferential surface of the handle, and the limiting plate is fixedly installed on the top of the carrying plate. A hole groove is provided at the bottom of the carrying plate, the circumferential surface of the limiting rod contacts the inner wall of the hole groove, the circumferential surface of the limiting rod contacts the inner wall of the circular hole, and a spherical surface 1 is provided at the bottom of the limiting rod. The inclined surface 4 of the connecting rod contacts the spherical surface 1 of the limiting rod during movement, the inclined surface 4 moves to squeeze the spherical surface 1, and the limiting rod is squeezed and moves upward.

[0013] According to the above technical solution, a No. 2 scroll spring is arranged between the handle and the lifting rod. The handle stretches the No. 2 scroll spring during rotation, and the No. 2 scroll spring is deformed due to the stretching. A limiting groove is opened on one side of the limiting plate close to the blocking block, and the bottom of the blocking block is in contact with the limiting groove.

[0014] The present invention provides a bicycle frame welding auxiliary tooling, which has the following beneficial effects: (1) In the bicycle frame welding auxiliary tooling, when the support rod moves, the loading plate provides support for the support rod with a slide groove. When the push plate clamps the frame, the support rod transmits the supporting force provided by the loading plate to the cylindrical rod, so that the cylindrical rod can move smoothly, thereby realizing that the push plate can stably perform the clamping work, effectively improving the clamping stability. At the same time, the limit plate contacts the inner wall of the limit groove during movement, and the limit plate stops moving due to obstruction. The limit plate and the push plate are precisely matched, which effectively ensures that the frame is stably clamped during processing, preventing the frame from being damaged due to excessive movement or unstable clamping force, thereby improving the clamping efficiency.

[0015] (2) In the bicycle frame welding auxiliary tooling, the rubber sheet is in close contact with the inner wall of the frame, so that the rubber sheet can support the inner wall of the frame under the action of its own elasticity. The rubber sheet provides support from the inner wall of the frame to prevent the frame from deflecting and moving when clamped, thereby ensuring that the welding point will not shift, which helps to improve the accuracy of welding. At the same time, the knocking sheet intermittently collides with multiple blocking blocks to generate vibration, and the vibration generated by the collision is transmitted to the rubber sheet through the blocking blocks, thereby improving the smoothness of the overall movement and ensuring that the rubber sheet is in close contact with the frame, thereby improving the use effect of the rubber sheet.

[0016] (3) In the bicycle frame welding auxiliary tooling, the limit rod moves and contacts the inner wall of the card slot, so that the limit rod applies a limit to the connecting rod. The limit rod automatically applies a limit to the connecting rod, so that the support applied by the rubber sheet to the frame is gradually reduced after standardized operation, which helps to improve the stability of operation. At the same time, the moving block contacts the top of the limiting plate, so that the handle is restricted and cannot move downward. The position of the block is changed through standardized operation, which makes it convenient for the operator to decide whether to use the limit rod according to usage requirements, which helps to improve the applicability of the limit rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall half-section structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the abutment plate and the limit plate of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 This is a schematic diagram of the position structure of the first spring of the present invention; Figure 6 This is a schematic diagram of the internal structure of the stabilizing device of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 For the present invention Figure 6 The enlarged structural diagram at C in the middle; Fig. 9 It is a schematic diagram of the internal structure of the locking device of the present invention.

[0018] In the figure: 1. loading plate; 2. fixing frame; 3. rotating rod; 4. cylinder; 5. mounting frame; 6. electric push rod; 7. cylindrical rod; 8. push plate; 9. spring No. 1; 10. contact rod; 11. abutment plate; 12. connecting tube; 13. support rod; 14. limit plate; 15. spring No. 2; 161. long rod; 162. telescopic rod; 163. spring No. 3; 164. rectangular block; 165. telescopic plate; 166. rubber sheet; 167. connecting rod; 168. knocking piece; 169. blocking block; 171. carrying plate; 172. lifting rod; 173. spring No. 4; 174. limit rod; 175. handle; 176. block; 177. limiting plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9, one embodiment of the present invention is: a bicycle frame welding auxiliary tooling, including a loading plate 1, a fixing frame 2 is fixedly installed on the top of the loading plate 1, a rotating rod 3 is rotatably penetrated through the inner and outer walls of the fixing frame 2, a cylinder 4 is fixedly installed on the surface of the rotating rod 3, a No. 1 volute spring is arranged between the rotating rod 3 and the fixing frame 2, a slide groove is provided on the top of the loading plate 1, a rectangular groove is provided on the circumferential surface of the cylinder 4, and a clamping device is also included; wherein the clamping device includes a mounting frame 5, an electric push rod 6, a cylindrical rod 7, a push plate 8, a No. 1 spring 9, a contact rod 10, a butt plate 11, a connecting tube 12, a support rod 13, a limit plate 14 and a No. 2 spring 15, the mounting frame 5 is fixedly installed on the top of the loading plate 1, and the electric push rod 6 is arranged on On the surface of the mounting frame 5, the cylindrical rod 7 is fixedly mounted on the output end of the electric push rod 6, the push plate 8 slides through the inner and outer walls of the cylindrical rod 7, the No. 1 spring 9 is arranged between the push plate 8 and the cylindrical rod 7, the contact rod 10 is fixedly mounted on the side of the cylindrical rod 7 away from the electric push rod 6, the stop plate 11 is fixedly mounted on the side of the push plate 8 close to the mounting frame 5, the connecting tube 12 is fixedly mounted on the circumferential surface of the cylindrical rod 7, the support rod 13 is fixedly mounted on the bottom of the connecting tube 12, the limit plate 14 slides through the bottom of the connecting tube 12, and the No. 2 spring 15 is arranged between the limit plate 14 and the connecting tube 12. By setting the No. 1 spring 9, the thrust applied by the push plate 8 to the frame is gradually increased to prevent the frame from being damaged by applying too large a clamping force at once.

[0021] The circumferential surface of the support rod 13 contacts the inner wall of the slide groove, and a slope 1 is provided on one side of the stop plate 11 close to the limit plate 14, and an arc surface 1 is provided on one side of the limit plate 14 close to the stop plate 11. By setting the support rod 13, the support rod 13 can transmit the supporting force provided by the loading plate 1 to the cylindrical rod 7, so that the push plate 8 can stably perform the clamping work.

[0022] A limiting groove is provided on the top of the loading plate 1, and a second inclined surface is provided on the bottom of the limiting plate 14. The second inclined surface is adapted to the size of the limiting groove. The limiting plate 14 is precisely matched with the push plate 8, which effectively ensures that the frame is stably clamped during processing, preventing damage to the frame due to excessive movement or unstable clamping force, thereby improving the clamping effect.

[0023] When the present embodiment is working, the rotating rod 3 is held and rotated upward. The rotating rod 3 stretches the No. 1 volute spring during the rotation. The No. 1 volute spring is deformed by the stretching. At the same time, the rotating rod 3 rotates to drive the cylinder 4 to rotate upward. After the cylinder 4 rotates to the specified position, one end of the cylindrical hollow frame contacts the cylinder 4, and the rotating rod 3 is controlled to rotate to the initial position, so that the deformed No. 1 volute spring gradually recovers. At the same time, the rotating rod 3 rotates to drive the cylinder 4 to rotate downward. The rotation of the cylinder 4 drives the end of the frame away from the rotating rod 3 to move toward the push plate 8. After the frame moves to the predetermined position, the electric push rod 6 is started, and the output end of the electric push rod 6 drives the cylindrical rod 7 to The fixed frame 2 moves, the cylindrical rod 7 moves to drive the contact rod 10 to move in the direction of the fixed frame 2, the contact rod 10 enters the interior of the frame during the movement, the cylindrical rod 7 moves to drive the connecting tube 12 to move in the direction of the fixed frame 2, the connecting tube 12 moves to drive the support rod 13 to move in the direction of the fixed frame 2, when the support rod 13 moves, the loading plate 1 provides support for the support rod 13 through the slide groove, and at the same time, the cylindrical rod 7 moves to drive the push plate 8 to move in the direction of the fixed frame 2, the push plate 8 moves to drive the stop plate 11 to move in the direction of the fixed frame 2, the push plate 8 contacts the end of the frame away from the rotating rod 3 during the movement, the push plate 8 is blocked by the frame and stops moving, the cylindrical rod 7 Continue to move and squeeze spring No. 1 9, spring No. 1 9 is squeezed and deformed, and the deformed spring No. 1 9 applies a reaction force to the push plate 8, and the push plate 8 is affected by the reaction force and applies a thrust to one end of the frame. As the thrust gradually increases, the frame is clamped between the push plate 8 and the cylinder 4. When the push plate 8 clamps the frame, the support rod 13 transmits the supporting force provided by the loading plate 1 to the cylindrical rod 7, so that the push plate 8 can stably perform the clamping work, thereby improving the clamping stability. After the push plate 8 stops moving, the abutment plate 11 stops moving together, and the connection tube 12 moves while driving the limit plate 14 to move toward the fixed frame 2. The limit plate 14 The arc surface 1 contacts the inclined surface 1 of the abutment plate 11 during movement, and the inclined surface 1 applies resistance to the moving arc surface 1, so that the moving limit plate 14 is affected by the inclined surface 1 and moves downward. The limit plate 14 stretches the No. 2 spring 15 during movement, and the No. 2 spring 15 is deformed due to the stretching. At the same time, the inclined surface 2 of the limit plate 14 contacts the inner wall of the limit groove during movement, and the limit plate 14 is blocked and stops moving, so that the cylindrical rod 7 stops moving. The precise cooperation between the limit plate 14 and the push plate 8 can effectively ensure that the frame is stably clamped during processing, and damage to the frame due to excessive movement or unstable clamping force can be prevented, thereby improving the clamping effect.

[0024] See also Figure 1-Figure 8On the basis of the above embodiment, another embodiment of the present invention further includes a stabilizing device and a locking device; the stabilizing device includes a long rod 161, a telescopic rod 162, a No. 3 spring 163, a rectangular block 164, a telescopic plate 165, a rubber sheet 166, a connecting rod 167, a knocking sheet 168 and a plurality of blocking blocks 169, the long rod 161 is fixedly penetrated through the inner and outer walls of the cylinder 4, the telescopic rod 162 slides through the side of the long rod 161 away from the cylinder 4, the No. 3 spring 163 is arranged between the telescopic rod 162 and the long rod 161, the rectangular block 164 is fixedly installed on the circumferential surface of the telescopic rod 162, and the telescopic plate 165 slides The rubber sheet 166 runs through the circumferential surface of the long rod 161, and is fixedly mounted on the side of the telescopic plate 165 away from the telescopic rod 162. The connecting rod 167 is slidably mounted inside the long rod 161. The knocking sheet 168 is fixedly mounted on the circumferential surface of the connecting rod 167. A plurality of blocking blocks 169 are fixedly mounted on the inner wall of the long rod 161. The side of the connecting rod 167 away from the cylinder 4 is fixedly connected to the telescopic rod 162. The knocking sheet 168 itself is elastic, and is supported from the inner wall of the frame by the rubber sheet 166 to prevent the frame from deflecting and moving when clamped, thereby ensuring that the welding point will not be offset, which helps to improve the accuracy of welding.

[0025] A third inclined surface is provided on one side of the rectangular block 164 close to the connecting rod 167, a second arc surface is provided on one side of the telescopic plate 165 close to the telescopic rod 162, the rubber sheet 166 is arranged in an arc shape, and the inner concave surface of the rubber sheet 166 contacts the circumferential surface of the long rod 161. By providing the third inclined surface and the second arc surface, it is ensured that when the rectangular block 164 contacts the telescopic plate 165, the telescopic plate 165 can be smoothly driven to move, thereby improving the working stability.

[0026] The knocking piece 168 is arranged in an arc shape, a circular hole is provided on the circumferential surface of the long rod 161, a card groove is provided on the circumferential surface of the connecting rod 167, and a slope 4 is provided on the side of the connecting rod 167 away from the telescopic rod 162. Continuous vibration is generated through intermittent collision between the knocking piece 168 and the blocking block 169, which improves the smoothness of the overall movement and ensures that the rubber sheet 166 is in close contact with the frame, thereby improving the use effect of the rubber sheet 166.

[0027] The locking device includes a carrying plate 171, a lifting rod 172, a No. 4 spring 173, a limiting rod 174, a handle 175, a block 176 and a limiting plate 177. The carrying plate 171 is fixedly installed in the rectangular groove, the lifting rod 172 is slidably installed to penetrate the inner and outer walls of the carrying plate 171, the No. 4 spring 173 is arranged between the lifting rod 172 and the carrying plate 171, the limiting rod 174 is fixedly installed at the bottom of the lifting rod 172, the handle 175 is rotatably installed at the top of the lifting rod 172, and the block 176 is fixedly installed at the bottom of the lifting rod 172. The circumferential surface of the handle 175, the limiting plate 177 is fixedly installed on the top of the mounting plate 171, and a hole groove is opened at the bottom of the mounting plate 171. The circumferential surface of the limiting rod 174 contacts the inner wall of the hole groove, and the circumferential surface of the limiting rod 174 contacts the inner wall of the circular hole. A spherical surface is opened at the bottom of the limiting rod 174. The connecting rod 167 is automatically limited by the limiting rod 174, which reduces the operating burden while gradually reducing the support applied by the rubber sheet 166 to the frame after standardized operation, which helps to improve the stability of the operation.

[0028] A No. 2 scroll spring is arranged between the handle 175 and the lifting rod 172. A limiting groove is provided on one side of the limiting plate 177 close to the block 176. The bottom of the block 176 contacts the limiting groove. The position of the block 176 can be changed by standardized operation, which facilitates the operator to decide whether to use the limit rod 174 according to usage requirements, thereby helping to improve the applicability of the limit rod 174.

[0029] When the present embodiment is working, before the frame contacts the cylinder 4, it is necessary to guide the frame through the long rod 161. The frame contacts the curved surface of the rubber sheet 166 during movement. During the clamping process, the contact rod 10 moves and contacts the telescopic rod 162, so that the contact rod 10 moves and drives the telescopic rod 162 to move toward the cylinder 4. The telescopic rod 162 squeezes the No. 3 spring 163 during movement. The No. 3 spring 163 is squeezed and deformed. At the same time, the telescopic rod 162 moves and drives the rectangular block 164 to move toward the cylinder 4. The inclined surface 3 of the rectangular block 164 contacts the curved surface 2 of the telescopic plate 165 during movement. The third moving extrusion arc surface 2, the telescopic plate 165 is squeezed and moves in the direction away from the telescopic rod 162, and the rubber sheet 166 is blocked by the frame and cannot move, so that the telescopic plate 165 moves to squeeze the rubber sheet 166, and the rubber sheet 166 is squeezed and deformed. During the deformation process, the rubber sheet 166 is in close contact with the inner wall of the frame, so that the rubber sheet 166 applies support to the inner wall of the frame under the action of its own elasticity. The rubber sheet 166 applies support from the inner wall of the frame to prevent the frame from deflecting and moving when clamping, thereby ensuring that the welding point will not be offset, which helps to improve the welding quality. Accuracy, the telescopic rod 162 moves while driving the connecting rod 167 to move in the direction of the cylinder 4, and the telescopic rod 162 moves and drives the striking piece 168 to move in the direction of the cylinder 4, and the concave surface of the striking piece 168 contacts the blocking block 169 during the movement, and the blocking block 169 hinders the moving striking piece 168, and the striking piece 168 continues to move and deforms under the influence of the blocking block 169, and the striking piece 168 stores energy during the deformation process, and when the striking piece 168 is separated from the contact surface of the blocking block 169, the deformed striking piece 168 quickly recovers under the action of its own elasticity, and the striking piece During the recovery process, the striking piece 168 contacts and collides with the second blocking block 169, so that the striking piece 168 collides with the blocking block 169 to generate vibration. When the striking piece 168 continues to move, the above movement is repeated to collide with multiple blocking blocks 169, and the blocking block 169 transmits the vibration to the rubber piece 166. The rubber piece 166 is more closely attached to the frame due to the vibration. The continuous vibration is generated by the intermittent collision between the striking piece 168 and the blocking block 169, which improves the smoothness of the overall movement and ensures that the rubber piece 166 is in close contact with the frame, thereby improving the use effect of the rubber piece 166. The inclined surface 4 of the connecting rod 167 contacts the spherical surface 1 of the limiting rod 174 during movement, and the inclined surface 4 moves to squeeze the spherical surface 1, and the limiting rod 174 is squeezed and moves upward, and the movement of the limiting rod 174 drives the lifting rod 172 to move upward, and the lifting rod 172 stretches the No. 4 spring 173 during movement, and the No. 4 spring 173 is stretched and deformed, and at the same time, the lifting rod 172 moves to drive the handle 175 to move upward, and the movement of the handle 175 drives the block 176 to move upward, and the bottom of the block 176 is separated from the limiting groove during movement. When the connecting rod 167 moves to the specified position, the surface of the connecting rod 167 in contact with the spherical surface 1 is separated, so that the deformation The fourth spring 173 is restored to drive the lifting rod 172 to move downward, and the lifting rod 172 moves to drive the limiting rod 174 to move downward. The circumferential surface of the limiting rod 174 contacts the inner wall of the card slot during the movement, so that the limiting rod 174 applies a limit to the connecting rod 167. When the contact rod 10 is separated from the telescopic rod 162, the rubber sheet 166 still maintains the support for the frame. When it needs to be released, hold the handle 175 and move it upward. The movement of the handle 175 drives the lifting rod 172 to move upward, and the movement of the lifting rod 172 drives the limiting rod 174 to move upward. The limiting rod 174 is separated from the card slot during the movement, and the limiting rod 174 automatically engages the connecting rod 167. The connecting rod 167 applies a limit, which reduces the operating burden and gradually reduces the support applied by the rubber sheet 166 to the frame after standardized operation, which helps to improve the stability of the operation. When the operator does not need to limit the connecting rod 167, he pulls the handle 175 to move upward, and the movement of the handle 175 drives the block 176 to move upward. When the top of the block 176 contacts the limiting groove, the handle 175 is rotated. The handle 175 stretches the second scroll spring during rotation. The second scroll spring is deformed by the stretching. At the same time, the rotation of the handle 175 drives the block 176 to rotate. The block 176 is separated from the surface in contact with the limiting groove during rotation, and then Continue to pull the handle 175 to move. When the handle 175 moves to the specified position, control the handle 175 to rotate toward the initial angle. The deformed No. 2 spiral spring gradually recovers during the rotation. At the same time, the rotation of the handle 175 drives the block 176 to rotate. The bottom of the block 176 contacts the top of the limiting plate 177 during the rotation, so that the handle 175 is restricted and cannot move downward. At the same time, the connecting rod 167 will not be limited by the limit rod 174 when moving. The position of the block 176 can be changed by standard operation, which is convenient for the operator to decide whether to use the limit rod 174 according to the usage requirements, which helps to improve the applicability of the limit rod 174.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bicycle frame welding auxiliary tool, comprising a loading plate (1), characterized in that: A fixing frame (2) is fixedly mounted on the top of the loading plate (1), a rotating rod (3) is rotatably penetrated through the inner and outer walls of the fixing frame (2), a cylinder (4) is fixedly mounted on the surface of the rotating rod (3), a No. 1 spiral spring is arranged between the rotating rod (3) and the fixing frame (2), a sliding groove is provided on the top of the loading plate (1), a rectangular groove is provided on the circumferential surface of the cylinder (4), and a clamping device, a stabilizing device and a locking device are also included; The clamping device comprises a mounting frame (5), an electric push rod (6), a cylindrical rod (7), a push plate (8), a No. 1 spring (9), a contact rod (10), a stop plate (11), a connecting tube (12), a support rod (13), a limit plate (14) and a No. 2 spring (15); the mounting frame (5) is fixedly mounted on the top of the loading plate (1); the electric push rod (6) is arranged on the surface of the mounting frame (5); the cylindrical rod (7) is fixedly mounted on the output end of the electric push rod (6); the push plate (8) slides through the inner and outer walls of the cylindrical rod (7); the No. 1 The spring (9) is arranged between the push plate (8) and the cylindrical rod (7), the contact rod (10) is fixedly mounted on a side of the cylindrical rod (7) away from the electric push rod (6), the stop plate (11) is fixedly mounted on a side of the push plate (8) close to the mounting frame (5), the connecting tube (12) is fixedly mounted on the circumferential surface of the cylindrical rod (7), the support rod (13) is fixedly mounted on the bottom of the connecting tube (12), the limit plate (14) slides through the bottom of the connecting tube (12), and the second spring (15) is arranged between the limit plate (14) and the connecting tube (12).

2. The bicycle frame welding auxiliary tooling according to claim 1, characterized in that: The circumferential surface of the support rod (13) contacts the inner wall of the slide groove, a side of the stop plate (11) close to the limit plate (14) is provided with an inclined surface one, and a side of the limit plate (14) close to the stop plate (11) is provided with an arc surface one.

3. The bicycle frame welding auxiliary tooling according to claim 2, characterized in that: The top of the loading plate (1) is provided with a limiting groove, and the bottom of the limiting plate (14) is provided with a second inclined surface, the second inclined surface being adapted to the size of the limiting groove.

4. The bicycle frame welding auxiliary tooling according to claim 3, characterized in that: The stabilizing device comprises a long rod (161), a telescopic rod (162), a third spring (163), a rectangular block (164), a telescopic plate (165), a rubber sheet (166), a connecting rod (167), a knocking sheet (168) and a plurality of blocking blocks (169); the long rod (161) is fixedly penetrated through the inner and outer walls of the cylinder (4); the telescopic rod (162) is slidably penetrated through a side of the long rod (161) away from the cylinder (4); the third spring (163) is arranged between the telescopic rod (162) and the long rod (161); the rectangular block (164) is fixedly mounted on the telescopic rod (162) ), the telescopic plate (165) slides through the circumferential surface of the long rod (161), the rubber sheet (166) is fixedly mounted on a side of the telescopic plate (165) away from the telescopic rod (162), the connecting rod (167) is slidably mounted inside the long rod (161), the knocking sheet (168) is fixedly mounted on the circumferential surface of the connecting rod (167), a plurality of blocking blocks (169) are fixedly mounted on the inner wall of the long rod (161), a side of the connecting rod (167) away from the cylinder (4) is fixedly connected to the telescopic rod (162), and the knocking sheet (168) itself is elastic.

5. The bicycle frame welding auxiliary tooling according to claim 4, characterized in that: A third inclined surface is provided on one side of the rectangular block (164) close to the connecting rod (167), a second arc surface is provided on one side of the telescopic plate (165) close to the telescopic rod (162), the rubber sheet (166) is arranged in an arc shape, and the inner concave surface of the rubber sheet (166) contacts the circumferential surface of the long rod (161).

6. The bicycle frame welding auxiliary tool according to claim 5, characterized in that: The striking piece (168) is arranged in an arc shape, a circular hole is provided on the circumferential surface of the long rod (161), a slot is provided on the circumferential surface of the connecting rod (167), and a sloped surface 4 is provided on a surface of the connecting rod (167) away from the telescopic rod (162).

7. The bicycle frame welding auxiliary tool according to claim 6, characterized in that: The locking device comprises a carrying plate (171), a lifting rod (172), a No. 4 spring (173), a limiting rod (174), a handle (175), a block (176) and a limiting plate (177); the carrying plate (171) is fixedly installed in the rectangular groove; the lifting rod (172) is slidably installed to penetrate the inner and outer walls of the carrying plate (171); the No. 4 spring (173) is arranged between the lifting rod (172) and the carrying plate (171); the limiting rod (174) is fixedly installed on the lifting rod The bottom of the lifting rod (172), the handle (175) is rotatably mounted on the top of the lifting rod (172), the block (176) is fixedly mounted on the circumferential surface of the handle (175), the limiting plate (177) is fixedly mounted on the top of the mounting plate (171), the bottom of the mounting plate (171) is provided with a hole groove, the circumferential surface of the limiting rod (174) contacts the inner wall of the hole groove, the circumferential surface of the limiting rod (174) contacts the inner wall of the circular hole, and the bottom of the limiting rod (174) is provided with a spherical surface.

8. The bicycle frame welding auxiliary tool according to claim 7, characterized in that: A second scroll spring is provided between the handle (175) and the lifting rod (172); a limiting groove is provided on a surface of the limiting plate (177) close to the clamping block (176); and a bottom of the clamping block (176) contacts the limiting groove.

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