Bicycle frame gluing jig

Abstract

The utility model relates to the technical field of bicycle frame assembly, in particular to a bicycle frame gluing jig which comprises a base, a head tube positioning assembly, an upper tube positioning assembly, a lower tube positioning assembly, a seat tube positioning assembly, a five-way positioning assembly, an upper fork positioning assembly, a lower fork positioning assembly and a hook claw positioning assembly. The device further comprises a head tube jacking assembly and a seat tube jacking assembly, the head tube jacking assembly is arranged on one side of the head tube positioning assembly, and the head tube is installed on the head tube positioning assembly and jacked through cooperation of the head tube jacking assembly and the head tube positioning assembly. The seat tube jacking assembly is arranged on one side of the seat tube connecting piece of the bicycle frame, the seat tube connecting piece is installed on the seat tube jacking assembly, and the seat tube connecting piece is jacked against the seat tube through the seat tube jacking assembly. According to the utility model, the head tube and the seat tube can be installed in place, the lap joint accuracy at the gluing joint is ensured, and the gluing precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle frame assembly, in particular to a bicycle frame gluing jig. Background Art

[0002] Bicycles, also known as bicycles or pedal bikes, are a traditional industry with a history of more than 100 years. They are easy to use and simple to maintain, and are deeply loved by people all over the world. They are an indispensable means of transportation in people's daily lives. In recent years, bicycles have once again become a favorite means of transportation and fitness for residents all over the world, and have changed from traditional means of transportation to sports, mountain and leisure and entertainment. The demand for bicycles is increasing, which has led to the long-term prosperity of the bicycle manufacturing industry.

[0003] As user demands become higher and higher, various lightweight frames are constantly being developed, especially for lightweight frame structures, composite materials such as aluminum alloy or carbon fiber are widely used. In the existing production process, it is still impossible to make a whole bicycle frame at one time. Instead, the bicycle frame is split into several different pipe parts and each pipe is positioned by a positioning fixture so that each pipe is in a gluing position, and then glue is used to bond the glue sections until the pipe parts are connected into a complete frame structure. The existing patent CN108381419A discloses a universal bonding fixture, including a base plate, and a head tube fixing assembly, a seat tube fixing assembly, a hook fixing assembly, a five-way fixing assembly, an upper tube support block, a lower tube support block, a rear upper fork support assembly, a rear lower fork support assembly, and a seat tube support assembly that are detachably mounted on the base plate. Although the jig assembles the frame by gluing and assembling the frame by arranging a head tube fixing component, a seat tube fixing component, a dropout fixing component, a five-way fixing component, an upper tube support block, a down tube support block, a rear seat fork support component and a seat tube support component on the base, it is found in the actual gluing process that during the gluing process of the head tube and the seat tube, it is necessary to manually apply a certain pressure to press the head tube and the seat tube, but the manual pressing often has insufficient force and the applied pressing force is uneven, there is a certain deviation in the gluing accuracy of the head tube and the seat tube, and the manual pressure will also increase the labor intensity of the manual labor. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a bicycle frame gluing jig to achieve the technical effect of accurately positioning the head tube and the seat tube.

[0005] To achieve this technical purpose, the utility model adopts the following scheme:

[0006] A bicycle frame gluing jig comprises a base, a head tube positioning assembly, an upper tube positioning assembly, a lower tube positioning assembly, a seat tube positioning assembly, a five-way positioning assembly, an upper fork positioning assembly, a lower fork positioning assembly and a dropout positioning assembly, and also comprises a head tube pressing assembly and a seat tube pressing assembly. The head tube pressing assembly is arranged at one side of the head tube positioning assembly, the head tube is mounted on the head tube positioning assembly and is pressed against the head tube through the cooperation between the head tube pressing assembly and the head tube positioning assembly; the seat tube pressing assembly is arranged at one side of a seat tube connector of the bicycle frame, the seat tube connector is mounted on the seat tube pressing assembly, and the seat tube connector is pressed against the seat tube through the seat tube pressing assembly.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] The utility model provides a head tube tightening assembly and a seat tube tightening assembly, so that the frame can tighten the head tube and the seat tube respectively during gluing, thereby ensuring that the head tube and the seat tube are installed in place, ensuring the accuracy of the overlap area of ​​the seat tube and the head tube at the gluing joint, and improving the gluing strength and accuracy.

[0009] Further, the preferred embodiment of the present invention is:

[0010] The head pipe positioning assembly includes two head pipe fixing blocks, which are placed in parallel on the base, each head pipe fixing block is provided with a head pipe clamping block, an adjustment groove is formed between the head pipe clamping block and the head pipe fixing block where it is located, a head pipe positioning shaft for installing the head pipe is provided between the two adjustment grooves, two head pipe locking blocks are provided on the head pipe positioning shaft, and the head pipe is placed between the two head pipe locking blocks;

[0011] The head tube tightening assembly includes a tightening cross bar, a clamping joint and a tightening screw. A curved surface that matches the surface of the head tube locating shaft is provided on one side of the clamping joint close to the head tube locating shaft, a locating hole is provided on the other end face of the clamping joint, and a threaded hole is provided at the position of the tightening cross bar corresponding to the locating hole of the clamping joint. The tightening cross bar is placed in two adjustment grooves and the clamping joint is tightened to the head tube locating shaft by means of a screw placed in the threaded hole.

[0012] The seat tube tightening assembly comprises a seat tube tightening support block, a seat tube tightening clamp block, a seat tube positioning mandrel and a seat tube tightening block, wherein the seat tube tightening support block is placed on the base, and the seat tube positioning mandrel is placed between the seat tube tightening support block and the seat tube tightening clamp block;

[0013] The seat tube positioning mandrel penetrates the seat tube pressing block and is slidably connected to the seat tube pressing block. A pressing threaded hole is axially opened at one end of the seat tube positioning mandrel. A seat tube pressing screw is threadedly connected to the pressing threaded hole. A long hole is axially opened on the surface of the seat tube positioning mandrel. The long hole penetrates the pressing threaded hole along the radial direction of the seat tube positioning mandrel.

[0014] A tightening pin is arranged inside the seat tube tightening block along the radial direction of the seat tube positioning core shaft, the tightening pin passes through the long hole and is slidably connected with the long hole; the side of the tightening pin away from the seat tube tightening screw is connected with the tightening threaded hole through a spring.

[0015] The side surface of the seat tube tightening block that contacts the seat tube connecting piece is fitted with the surface of the seat tube connecting piece.

[0016] The seat tube anti-deflection assembly also includes an anti-deflection support block, the anti-deflection support block is provided with a limited long hole corresponding to the screw hole reserved on the seat tube, and the limit screw passes through the limited long hole and is threadedly connected with the screw hole. The limit screw is connected with the screw hole reserved on the seat tube to prevent the seat tube from rotating during the gluing process, thereby improving the accuracy of the seat tube gluing.

[0017] It also includes a lower tube reserved hole positioning assembly, which includes a lower tube top clamp and a lower tube top clamp. Positioning grooves are respectively provided at both ends of one side of the lower tube top clamp, and positioning holes are respectively provided in each positioning groove corresponding to the position of the lower tube reserved hole, and a clamping sleeve is respectively provided in each positioning groove, and a positioning pin shaft passes through the clamping sleeve and the positioning hole and is threadedly connected with the lower tube reserved hole; a U-shaped groove is provided between the two positioning grooves on the other side of the lower tube top clamp; a clamping groove is provided inside the U-shaped groove, and one side of the lower tube top clamp is clamped with the clamping groove and then the two are connected by bolts, and the other side of the lower tube top clamp is tightly attached to the lower tube. The lower tube reserved hole positioning assembly is used to ensure the accuracy of the positions of the two reserved holes on the lower tube and the spacing between the two holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a bicycle rack;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model for positioning a bicycle rack;

[0020] Figure 3 for Figure 2 A top view of

[0021] Figure 4 It is a schematic diagram of the structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the mounting slots of various components on the base;

[0023] Figure 6 It is a schematic diagram of the structure of the components of the head pipe positioning assembly and the head pipe tightening assembly;

[0024] Figure 7 It is a structural schematic diagram of the seat tube tightening assembly;

[0025] Figure 8 for Figure 7 A cross-sectional view of

[0026] Fig. 9 It is a structural schematic diagram of the seat tube anti-deflection assembly;

[0027] Fig.10 It is a structural schematic diagram of the five-way positioning assembly;

[0028] Fig.11 for Fig.10 A cross-sectional view of

[0029] Fig.12 Schematic diagram of the assembly for reserving holes for the lower tube;

[0030] Fig.13 It is a structural schematic diagram of the hook positioning assembly;

[0031] Fig.14 A cross-sectional view of a hook positioning assembly;

[0032] The markings in the figure are: 1. bicycle frame; 101. head tube; 102. upper tube; 103. lower tube; 104. seat tube connector; 105. seat tube; 106. bottom bracket; 107. upper fork; 108. lower fork; 109. hook; 2. base; 201. upper tube fixing block mounting slot; 202. lower tube fixing block mounting slot; 203. lower tube top clamping block mounting slot; 204. seat tube fixing block mounting slot; 205. seat tube top clamping support block mounting slot; 206. anti-deflection support block mounting slot; 207. bottom bracket fixing column mounting slot; 208. upper fork support block mounting slot; 209. lower fork support block mounting slot; 210. hook support block mounting slot 1. Mounting groove; 2. Head tube positioning assembly; 301. Head tube fixing block; 302. Head tube clamping block; 303. Adjusting groove; 304. Head tube positioning shaft; 305. Slide groove; 306. Head tube locking block; 4. Head tube jacking assembly; 401. Clamp joint; 402. Jacking cross bar; 403. Jacking screw; 5. Upper tube positioning assembly; 501. Upper tube fixing block; 502. Upper tube clamping block; 6. Lower tube positioning assembly; 601. Lower tube fixing block; 602. Lower tube clamping block; 7. Lower tube reserved hole positioning assembly; 701. Lower tube jacking clamping block; 702. Lower tube jacking clamping block; 703. Positioning groove; 704. Pressing sleeve; 705. Positioning pin Axle; 706, U-shaped groove; 707, clamping groove; 8, seat tube positioning assembly; 801, seat tube positioning assembly; 802, seat tube clamping block; 9, seat tube jacking assembly; 901, seat tube jacking support block; 902, seat tube jacking clamping block; 903, seat tube positioning mandrel; 904, seat tube jacking block; 905, jacking threaded hole; 906, jacking screw; 907, long hole; 908, jacking pin; 909; spring; 10, five-way positioning assembly; 1001, five-way fixing column; 1002, five-way clamping block; 1003, lower clamping joint; 1004, upper clamping joint; 1005, five-way jacking screw; 11, seat tube anti-deflection assembly; 1101, anti-deflection support block; 1102, limiting long hole; 1103, limiting screw; 12, upper fork positioning assembly; 1201, upper fork support block; 1202, upper fork clamping block; 13, lower fork positioning assembly; 1301, lower fork support block; 1302; lower fork clamping block; 14, hook positioning assembly; 1401, hook support block; 14011, hook fixing block mounting groove; 1402, hook fixing block; 1403, hook fixing column; 1404, hook clamping block; 1405, annular groove; 1406, hook clamping rod; 1407, first pressure block; 1408, second pressure block; 1409, limiting pin. DETAILED DESCRIPTION

[0033] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0034] like Figure 1 As shown, a conventional bicycle frame 1 is composed of a head tube 101, an upper tube 102, a down tube 103, a seat tube 105, an upper fork 107, a lower fork 108 and a hook 109 (the names of the various parts of the bicycle frame 1 in this embodiment are defined according to the positions or uses of the various parts when the bicycle frame 1 is in use, and have nothing to do with the subsequent description of the orientation of the drawings in this embodiment).

[0035] A bicycle gluing jig comprises a base 2, a gluing surface is arranged on the base 2, and a head tube positioning assembly 3, an upper tube positioning assembly 5, a lower tube positioning assembly 6, a seat tube positioning assembly 8, a five-way positioning assembly 10, an upper fork positioning assembly 12, a lower fork positioning assembly 13, a dropout positioning assembly 14, a head tube tightening assembly 4, a seat tube tightening assembly 9, a seat tube anti-deflection assembly 11 and a lower tube reserved hole positioning assembly 7 are arranged on the gluing surface, which correspond to the parts of a bicycle frame 1.

[0036] When the gluing jig in this embodiment is used, the head tube positioning assembly 3 passes through the head tube 101 and clamps the two ends of the head tube 101, and then tightens it through the head tube tightening assembly 4; the seat tube positioning assembly 8 tightens the seat tube connector 104 from the rear side of the seat tube connector 104, the upper tube positioning assembly 5 and the lower tube positioning assembly 6 are respectively placed between the head tube positioning assembly 3 and the seat tube positioning assembly 8, the upper tube positioning assembly 5 is used to position and support the upper tube 102, and the lower tube positioning assembly 6 is used to position and support the lower tube 103; the bottom bracket positioning assembly 10 passes through the bottom bracket 106, The upper and lower ends of the five-way bracket 106 are clamped; the dropout positioning assembly 14 is clamped with the dropout 109; the upper fork positioning assembly 12 and the lower fork positioning assembly 13 are placed between the dropout positioning assembly 14 and the seat tube positioning assembly 8, the upper fork positioning assembly 12 is used for positioning and supporting the upper fork 107, and the lower fork positioning assembly 13 is used for positioning and supporting the lower fork 108; the seat tube anti-deflection assembly 11 is placed on the side of the seat tube 105, for limiting the reserved hole on the seat tube 105; the lower tube reserved hole positioning assembly 7 is placed on the side of the lower tube 103, for positioning the reserved hole on the lower tube 103.

[0037] The head pipe positioning assembly 3 consists of two head pipe fixing blocks 301, which are placed parallel to the base 2, and the bottoms of the head pipe fixing blocks 301 are detachably connected to the base 2 by bolts; a head pipe clamping block 302 is arranged above each head pipe fixing block 301, and the head pipe clamping block 302 is detachably connected to the head pipe fixing block 301 by bolts.

[0038] The head tube clamping block 302 is an inverted U-shaped structure. The gap between the head tube clamping block 302 and the head tube fixing block 301 forms an adjustment groove 303. A head tube positioning shaft 304 is slidably connected between the two adjustment grooves 303. A slide groove 305 is provided on the surface of the head tube positioning shaft 304 along its axial direction. Two annular head tube locking blocks 306 are sleeved on the head tube positioning shaft 304, and the two head tube locking blocks 306 are slidably connected to the head tube positioning shaft 304 respectively; a threaded through hole is radially provided on the surface of the head tube locking block 306. The head tube locking block 306 is tightened with the slide groove 305 by a top screw placed in the through hole, thereby realizing the positioning of the two ends of the head tube 101.

[0039] The head tube tightening assembly 4 is composed of a clamping joint 401, a tightening cross bar 402 and a head tube tightening screw 403. The end face of the clamping joint 401 on one side close to the head tube positioning axis 304 is set as a curved surface adapted to the head tube positioning axis 304. A positioning hole is opened along the axial direction of the other side end face of the clamping joint 401. A threaded hole is opened on the tightening cross bar 402 corresponding to the position of the positioning hole on the clamping joint 401. The tightening screw 403 passes through the threaded hole and is plugged into the positioning hole. The tightening screw 403 pressurizes the clamping joint 401 by being threadedly connected with the threaded hole, thereby achieving the effect of tightening the head tube positioning axis 304, thereby avoiding the gluing accuracy of the head tube 101 affected by the sliding of the head tube positioning axis 304 during the gluing process.

[0040] The upper tube positioning assembly 5 is composed of a plurality of upper tube fixing blocks 501 arranged at intervals, each of which corresponds to an upper tube clamping block 502, and the upper tube fixing block 501 is detachably connected to the upper tube clamping block 502 by bolts. The upper tube 102 is placed between the upper tube fixing block 501 and the upper tube clamping block 502 and clamped by the two. An upper tube fixing block installation groove 201 is respectively opened on the bonding surface of the base 2 corresponding to each upper tube fixing block 501, and the bottom of the upper tube fixing block 501 is placed in the upper tube fixing block installation groove 201 and the two are detachably connected by bolts.

[0041] The lower tube positioning assembly 6 is composed of a plurality of lower tube fixing blocks 601 arranged at intervals, each lower tube fixing block 601 corresponds to a lower tube clamping block 602, the lower tube fixing block 601 is detachably connected to the lower tube clamping block 602 by bolts, and the lower tube 103 is placed between the lower tube fixing block 601 and the lower tube clamping block 602 and clamped by the two; a lower tube fixing block mounting groove 202 is respectively opened on the gluing surface of the base 2 corresponding to each lower tube fixing block 601, the bottom of the lower tube fixing block 601 is placed in the lower tube fixing block mounting groove 202, and the two are detachably connected by bolts.

[0042] A lower tube reserved hole positioning assembly 7 is also provided at a position of the base 2 corresponding to a reserved hole of the lower tube 103 (generally, two threaded holes are reserved on the lower tube 103 of the bicycle frame 1 for installing a cup holder). The lower tube reserved hole positioning assembly 7 is composed of a lower tube top tightening clamp 701 and a lower tube top tightening block 702. A lower tube top tightening block mounting groove 203 is provided on the glued surface of the base 2 corresponding to the mounting position of the lower tube top tightening block 702. The bottom of the lower tube top tightening block 702 is placed in the lower tube top tightening block mounting groove 203 and the two are detachably connected by bolts.

[0043] The two ends of the lower tube clamping block 701 away from the lower tube 103 are respectively provided with positioning grooves 703, and positioning holes are respectively provided in each positioning groove 703 at positions corresponding to the reserved holes of the lower tube 103, and a clamping sleeve 704 is respectively provided at positions corresponding to the positioning holes on the outer side of each positioning groove 703, and the positioning pin shaft 705 sequentially penetrates the clamping sleeve 704 and the positioning hole and is threadedly connected with the reserved hole of the lower tube 103. The reserved holes on the lower tube 103 are positioned by two positioning pin shafts 705 to ensure the spacing between the two holes.

[0044] The lower tube top clamping block 701 is provided with a U-shaped groove 706 on the side close to the lower tube 103, and the U-shaped groove 706 is placed between the two positioning grooves 703. A clamping groove 707 is provided inside the U-shaped groove 706, and a fixing threaded hole 1 is provided inside the clamping groove 707. The lower tube top clamping block 702 is placed in the clamping groove 707 and clamped with the lower tube top clamping block 701, and a fixing threaded hole 2 is provided on the side of the lower tube top clamping block 702 close to the clamping groove 707 corresponding to the fixing threaded hole 1, and a bolt passes through the fixing threaded hole 1 and the fixing threaded hole 2 and is threadedly connected with the two respectively. The lower tube top clamping block 702 is fixed to the lower tube top clamping block 701 by bolts to ensure the horizontality of the lower tube top clamping block 701 and ensure that the two positioning pins 705 are at the same height; the side of the lower tube top clamping block 702 away from the lower tube 103 is prevented from being tightly attached to the lower tube 103.

[0045] The five-way positioning assembly 10 is composed of a five-way fixing column 1001 and a five-way clamping block 1002. A five-way fixing column mounting groove 207 is provided on the bonding surface of the base 2 corresponding to the mounting position of the five-way fixing column 1001. The five-way fixing column 1001 is vertically installed in the five-way fixing column mounting groove 207 and the two are detachably installed by bolts. A lower clamping joint 1003 that is engaged with the lower ring of the five-way 106 is provided on the five-way fixing column 1001, and a lower clamping joint 1004 that is engaged with the upper ring of the five-way 106 is provided at the bottom of the five-way clamping block 1002. The lower clamping joint 1004 has a hollow structure inside. A through hole that is connected to the hollow structure inside the lower clamping joint 1004 is provided at the center of the five-way clamping block 1002. A threaded hole is axially provided at the center position of the upper end of the five-way fixing column 1001; the five-way top tightening screw 1 005 passes through the through hole through the five-way clamping block 1002 and extends into the threaded hole to be threadedly connected with the five-way fixing column 1001; the upper ring of the five-way 106 is clamped with the lower clamping joint 1004, and the lower ring of the five-way 106 is clamped with the lower clamping joint 1003. The five-way clamping block 1002 is clamped to the upper end of the five-way fixing column 1001 through the lower clamping joint 1004, and the screw is rotated to make the five-way clamping block 1002 press down the upper ring of the five-way 106, and then the five-way 106 is installed on the base 2.

[0046] The seat tube positioning assembly 8 is used to support and position the seat tube 105. The seat tube positioning assembly 8 is composed of a plurality of seat tube fixing blocks 801 arranged at intervals. Each seat tube fixing block 801 corresponds to a seat tube clamping block 802. The seat tube fixing block 801 is detachably connected to the seat tube clamping block 802 by bolts; the seat tube 105 is installed on the base 2 by clamping the seat tube fixing block 801 and the seat tube clamping block 802.

[0047] A seat tube fixing block installation groove 204 is respectively opened on the bonding surface of the base 2 corresponding to each seat tube fixing block 801, and the bottom of the seat tube fixing block 801 is placed in the seat tube fixing block installation groove 204 and the two are detachably connected by bolts.

[0048] The seat tube tightening assembly 9 is composed of a seat tube tightening support block 901, a seat tube tightening clamp block 902, a seat tube positioning spindle 903 and a seat tube tightening block 904. A seat tube tightening support block mounting groove 205 is provided on the glued surface of the base 2 at a position corresponding to the seat tube tightening support block 901. The bottom of the seat tube tightening support block 901 is placed in the seat tube tightening support block mounting groove 205 and the two are detachably connected by bolts.

[0049] The seat tube support block 901 is detachably connected to the seat tube support clamp block 902 by bolts, and one end of the seat tube positioning mandrel 903 is placed between the seat tube support block 901 and the seat tube support clamp block 902 and clamped by the two. A clearance hole is opened in the center of the seat tube support block 904 along the placement direction of the seat tube 105, and the other end of the seat tube positioning mandrel 903 passes through the seat tube support block 904 through the clearance hole and then passes through the seat tube connector 104 to be inserted into the seat tube 105, and the seat tube positioning mandrel 903 is slidably connected to the seat tube support block 904 through the clearance hole.

[0050] A tightening threaded hole 905 is provided along the axial direction at one end of the seat tube positioning spindle 903 away from the seat tube 105, and a seat tube tightening screw 906 is connected to the inner thread of the tightening threaded hole 905; a long hole 907 is provided along the axial direction on the surface of the seat tube positioning spindle 903, and the long hole 907 penetrates the tightening threaded hole 905 along the radial direction of the seat tube positioning spindle 903.

[0051] A tightening pin 908 is arranged inside the seat tube tightening block 904 along the radial direction of the seat tube positioning core shaft 903, and the tightening pin 908 passes through the long hole 907 and is slidably connected with the long hole 907; the tightening pin 908 is connected to the tightening threaded hole 905 through a spring 909 on the side away from the seat tube tightening screw 906. The seat tube tightening screw 906 is rotated to make the seat tube tightening screw 906 press the tightening pin 908 along the axial direction of the seat tube positioning core shaft 903, thereby driving the seat tube tightening block 904 to press the seat tube connecting piece 104.

[0052] In this embodiment, the surface of the seat tube tightening block 904 that contacts the seat tube connector 104 needs to be completely in contact with the seat tube connector 104 .

[0053] The seat tube anti-deflection assembly 11 includes an anti-deflection support block 1101, and an anti-deflection support block installation groove 206 is provided on the glued surface of the base 2 corresponding to the installation position of the anti-deflection support block 1101. The bottom of the anti-deflection support block 1101 is placed in the anti-deflection support block installation groove 206 and is detachably connected to the two through a screw rod; a limited long hole 1102 is provided on the upper part of the anti-deflection support block 1101 corresponding to the screw hole reserved on the seat tube 105 (the screw hole reserved on the seat tube 105 of the bicycle frame 1 is used for the installation of the cup holder, and the screw hole faces the direction of the head tube 101) (the length direction of the limited long hole 1102 is set along the length direction of the seat tube 105), and a limiting screw 1103 passes through the limited long hole 1102 and is threadedly connected to the screw hole. The cooperation between the limit screw 1103 and the screw hole can better position the seat tube 105 to prevent the seat tube 105 from rotating, and the limit long hole 1102 has a certain adaptability and can be adjusted according to the deviation of the position of the limit screw 1103 on different seat tubes 105.

[0054] The upper fork positioning assembly 12 is composed of an upper fork support block 1201 and an upper fork clamping block 1202. An upper fork support block mounting groove 208 is provided on the glued surface of the base 2 corresponding to the mounting position of the upper fork support block 1201. The bottom of the upper fork support block 1201 is placed in the upper fork support block mounting groove 208 and is detachably connected by bolts; the upper fork support block 1201 and the upper fork clamping block 1202 are detachably connected by bolts. When the upper fork positioning assembly 12 is in use, the upper fork 107 is placed between the upper fork support block 1201 and the upper fork clamping block 1202.

[0055] The lower fork positioning assembly 13 is composed of a lower fork support block 1301 and a lower fork clamping block 1302. A lower fork support block installation groove 209 is provided on the glued surface of the base 2 corresponding to the installation position of the lower fork support block 1301. The bottom of the lower fork support block 1301 is placed in the lower fork support block installation groove 209 and is detachably connected by bolts; the lower fork support block 1301 and the lower fork clamping block 1302 are detachably connected by bolts. When the lower fork positioning assembly 13 is in use, the lower fork 108 is placed between the lower fork support block 1301 and the lower fork clamping block 1302.

[0056] The hook positioning assembly 14 is composed of a hook support block 1401, a hook fixing block 1402, a hook fixing column 1403 and a hook clamping block 1404. A hook support block installation groove 210 is provided on the gluing surface of the base 2 corresponding to the installation position of the hook support block 1401. The bottom of the hook support block 1401 is placed in the hook support block installation groove 210 and is detachably connected by bolts.

[0057] A hook fixing block installation groove 14011 is provided on the rear side wall of the hook support block 1401, and the rear side of the hook fixing block 1402 is detachably installed in the hook fixing block installation groove 14011 by bolts; the front side of the hook fixing block 1402 is detachably connected to the hook clamping block 1404 by bolts.

[0058] An annular groove 1405 is provided in the middle of the hook fixing column 1403 , and the hook fixing column 1403 is clamped between the hook fixing block 1402 and the hook clamping block 1404 through the annular groove 1405 .

[0059] A through hole is axially opened in the center of the hook claw fixing column 1403, and a hook claw clamping rod 1406 is slidably connected in the through hole, and the lower part of the hook claw clamping rod 1406 extends to the outside of the hook claw fixing column 1403, and the bottom of the hook claw clamping rod 1406 is threadedly connected to the first pressure block 1407 disposed under the hook claw fixing column 1403 through the threaded structure thereon; a second pressure block 1408 is sleeved on the top of the hook claw clamping rod 1406, and the second pressure block 1408 is connected into a whole through a limiting pin shaft 1409 radially penetrating the second pressure block 1408 and the hook claw clamping rod 1406, and rotating the limiting pin shaft 1409 can drive the hook claw clamping rod 1406 and the second pressure block 1408 to rotate simultaneously.

[0060] The two hooks 109 are respectively placed between the first pressing block 1407 and the hook fixing column 1403 and between the second pressing block 1408 and the hook fixing column 1403, and the outer diameter of the hook pressing rod 1406 is the same as the inner diameter of the hole for fixing the wheel axle of the hook 109. When in use, the two hooks 109 are respectively clamped on the hook pressing rod 1406, and the distance between the first pressing block 1407 and the hook fixing column 1403 and the distance between the second pressing block 1408 and the hook fixing column 1403 are adjusted by rotating the hook pressing rod 1406, so as to position and press the hook 109.

[0061] The base 2 in this embodiment is still provided with a plurality of weight-reducing holes to reduce the weight of the base 2 for easy carrying.

[0062] In this embodiment, different types of frames can share a base, and multiple groups of mounting grooves corresponding to the mounting positions of various structural parts are provided on the base according to different types of frames to ensure the versatility of the gluing fixture.

[0063] The jig can also be configured according to different models of bicycle frames, with multiple groups of mounting grooves corresponding to the mounting positions of the various structural parts on the gluing surface of the base according to the mounting positions of the upper tube, seat tube connector and upper fork of each frame model, so as to ensure the versatility of the gluing jig.

[0064] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A bicycle frame gluing jig, comprising a base, a head tube positioning assembly, an upper tube positioning assembly, a down tube positioning assembly, a seat tube positioning assembly, a five-way positioning assembly, an upper fork positioning assembly, a lower fork positioning assembly and a dropout positioning assembly, characterized in that: It also includes a head tube tightening assembly and a seat tube tightening assembly. The head tube tightening assembly is placed on one side of the head tube positioning assembly. The head tube is installed on the head tube positioning assembly and is tightened to the head tube through the cooperation between the head tube tightening assembly and the head tube positioning assembly. The seat tube tightening assembly is placed on one side of the seat tube connector of the bicycle frame. The seat tube connector is installed on the seat tube tightening assembly. The seat tube connector is tightened to the seat tube through the seat tube tightening assembly.

2. The bicycle frame gluing jig according to claim 1, characterized in that: The head pipe positioning assembly includes two head pipe fixing blocks, which are placed in parallel on the base, each head pipe fixing block is provided with a head pipe clamping block, an adjustment groove is formed between the head pipe clamping block and the head pipe fixing block where it is located, a head pipe positioning shaft for installing the head pipe is provided between the two adjustment grooves, two head pipe locking blocks are provided on the head pipe positioning shaft, and the head pipe is placed between the two head pipe locking blocks; The head tube tightening assembly includes a tightening cross bar, a clamping joint and a tightening screw. A curved surface that matches the surface of the head tube locating shaft is provided on one side of the clamping joint close to the head tube locating shaft, a locating hole is provided on the other end face of the clamping joint, and a threaded hole is provided at the position of the tightening cross bar corresponding to the locating hole of the clamping joint. The tightening cross bar is placed in two adjustment grooves and the clamping joint is tightened to the head tube locating shaft by means of a screw placed in the threaded hole.

3. The bicycle frame gluing jig according to claim 1, characterized in that: The seat tube tightening assembly comprises a seat tube tightening support block, a seat tube tightening clamp block, a seat tube positioning mandrel and a seat tube tightening block, wherein the seat tube tightening support block is placed on the base, and the seat tube positioning mandrel is placed between the seat tube tightening support block and the seat tube tightening clamp block; The seat tube positioning mandrel penetrates the seat tube pressing block and is slidably connected to the seat tube pressing block. A pressing threaded hole is axially opened at one end of the seat tube positioning mandrel. A seat tube pressing screw is threadedly connected to the pressing threaded hole. A long hole is axially opened on the surface of the seat tube positioning mandrel. The long hole penetrates the pressing threaded hole along the radial direction of the seat tube positioning mandrel. A tightening pin is arranged inside the seat tube tightening block along the radial direction of the seat tube positioning core shaft, the tightening pin passes through the long hole and is slidably connected with the long hole; the side of the tightening pin away from the seat tube tightening screw is connected with the tightening threaded hole through a spring.

4. The bicycle frame gluing jig according to claim 3, characterized in that: The side surface of the seat tube tightening block that contacts the seat tube connecting piece is fitted with the surface of the seat tube connecting piece.

5. The bicycle frame gluing jig according to claim 1, characterized in that: It also includes a seat tube anti-deflection component, which includes an anti-deflection support block. The anti-deflection support block has a limited long hole corresponding to the screw hole reserved on the seat tube, and the limiting screw passes through the limited long hole and is threadedly connected to the screw hole.

6. The bicycle frame gluing jig according to claim 1, characterized in that: The lower tube pre-set hole positioning assembly also includes the lower tube pre-set hole positioning assembly including a lower tube top clamping block and a lower tube top clamping block. Positioning grooves are respectively provided at both ends of one side of the lower tube top clamping block. Positioning holes are respectively provided in each positioning groove corresponding to the position of the lower tube pre-set hole. A clamping sleeve is respectively provided in each positioning groove. The positioning pin passes through the clamping sleeve and the positioning hole and is threadedly connected with the lower tube pre-set hole. A U-shaped groove is provided between the two positioning grooves on the other side of the lower tube top clamping block. A clamping groove is provided inside the U-shaped groove. After one side of the lower tube top clamping block is engaged with the clamping groove, the two are connected by bolts, and the other side of the lower tube top clamping block is tightly attached to the lower tube.

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