A launching tube bonding positioning tool

Abstract

The utility model relates to a launching tube bonding positioning tool belongs to launching tube bonding technical field. The tool includes installation platform, variable diameter structure, positioning core and drive structure, installation platform is used for installing variable diameter structure, positioning core and drive structure, variable diameter structure includes the wedge block and four radial movement sliders with the four -week side surface on wedge block's sliding fit, drive structure includes the screw rod of driving wedge block reciprocating motion in vertical direction, and the screw rod drives rotation through hand wheel and bevel gear system, the screw rod rotates and drives the up and down movement of wedge block to drive four radial movement sliders radial motion, realizes the tension and positioning of launching cylinder body, because can change the motion stroke and direction of radial movement slider through changing hand wheel rotation circle number and rotation direction, can be big or small and can be freely extended and retracted. The utility model can improve the bonding quality, the qualified rate and the efficiency, the positioning is accurate, the commonality is good, is applicable to the launching cylinder of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of launch tube bonding technology, and in particular to a launch tube bonding and positioning fixture. Background Technology

[0002] The launch tube mainly consists of the launch tube body and the stop ring, which need to be connected together by gluing during production. The tube body and the stop ring cannot be directly positioned; they often need to be roughly positioned with the help of some auxiliary tools before being glued and cured to bond the tube body and the stop ring into a whole.

[0003] Traditional auxiliary tools are typically simple positioning core fixtures with side bosses. When using them, adhesive is applied to the bonding surfaces of the launch tube, and the positioning core is inserted sequentially by hand, aligning the notch with the side bosses of the positioning core, while the tube is held upright. Then, it is placed in an oven for baking and bonding. Because most of the adhesive is scraped away by the edge of the positioning ring during insertion, and there is no radial bonding force, the adhesive layer is prone to being poorly bonded, resulting in poor bonding quality, low pass rate in drop tests, and slow bonding speed and low efficiency. Utility Model Content

[0004] Based on the problems existing in the above-mentioned background technology, this utility model proposes a launching tube bonding and positioning fixture, which solves the problem of insufficient adhesive layer when using traditional positioning core fixtures with side bosses to bond launching tubes.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: This utility model provides a launching tube bonding and positioning fixture, which includes a mounting platform, a variable diameter structure, a positioning core and a driving structure; The mounting platform includes a fixed plate, and a mounting recess is provided on the upper end surface of the fixed plate. The positioning core is fixedly disposed within the mounting recess. The variable diameter structure includes a wedge block disposed inside the positioning core. Multiple radially moving sliders are slidably disposed on the four sides of the wedge block. A gap is provided between the outer side of each radially moving slider and the inner wall of the positioning core. A connecting plate is horizontally disposed at the bottom of each radially moving slider. Multiple sliding grooves are radially disposed on the lower end surface of the positioning core. Each connecting plate is slidably disposed within one of the sliding grooves. The drive structure is located below the fixed plate. The drive structure includes a rotating lead screw that is threadedly connected to the center position of the wedge block. The lead screw drives the wedge block to reciprocate in the vertical direction.

[0006] Furthermore, as a specific embodiment of the wedge block, the small-diameter end of the wedge block is vertically downward.

[0007] Furthermore, the wedge block has a square cross-section, and there are four radial moving sliders and sliding grooves. A radial moving slider is slidably disposed on each inclined side of the wedge block. A T-shaped boss is disposed on each of the four inclined sides of the wedge block along its inclined direction. A T-shaped groove is disposed on each radial moving slider that slides with the T-shaped boss.

[0008] Furthermore, as a specific embodiment of the mounting platform, the mounting platform also includes a base plate and four uprights; the bottoms of the four uprights are fixedly connected to the four corners of the upper surface of the base plate, and the tops of the four uprights are fixedly connected to the four corners of the lower surface of the base plate. This configuration provides the mounting platform with mounting space for the drive structure.

[0009] Furthermore, the positioning core is provided with a side boss that mates with the notch in the launch tube. The side boss mates with the notch in the stop ring to achieve precise positioning of the stop ring and ensure the accurate position of the launch tube and the stop ring.

[0010] Furthermore, as a specific embodiment of the drive structure, the drive structure also includes a first bearing seat and a second bearing seat fixedly connected to the lower end face of the fixed plate; the lead screw is vertically arranged and rotatably connected to the first bearing seat through a bearing, the bottom of the lead screw is located below the first bearing seat and a first bevel gear is arranged on it; the second bearing seat is located on one side of the first bearing seat, and a horizontal transmission shaft is rotatably connected to the second bearing seat through a bearing, both ends of the transmission shaft are located outside the second bearing seat, and a handwheel and a second bevel gear are respectively arranged at both ends of the transmission shaft, the second bevel gear meshing with the first bevel gear.

[0011] The working principle of the launch tube bonding and positioning fixture in this utility model is as follows: During use, the launch tube body and the stop ring are placed on the positioning core, aligning the notch with the side boss. Rotating the handwheel drives the lead screw through the bevel gear system, causing the wedge block to move downwards, pushing the four radially moving sliders to expand radially, tensioning the launch tube body, and ensuring a tight fit between the bonding surfaces. After bonding is complete, rotating the handwheel in the opposite direction retracts the four radially moving sliders, allowing the workpiece to be removed.

[0012] Compared with traditional positioning core fixtures with side bosses, the advantages of this utility model are: This utility model provides a launching tube bonding and positioning fixture. By rotating a handwheel clockwise, a second bevel gear on a transmission shaft mounted to the handwheel drives a first bevel gear to rotate clockwise. The first bevel gear drives a lead screw mounted to rotate in place, causing a wedge block to move downwards. This forces four radially moving sliders to move outwards and expand their action on the inner surface of the launching tube, resulting in a tighter fit between the launching tube's bonding surface and the corresponding bonding surface of the stop ring. This leads to stronger bonding, better results, higher efficiency, and guaranteed concentricity and positional accuracy, resulting in a high finished product qualification rate. Since the stroke and direction of the radially moving sliders can be changed by altering the number of rotations and the direction of rotation of the handwheel, it can be adjusted to various sizes, thus meeting the tensioning, positioning, and bonding needs of launching tubes with different inner diameters within a certain range, demonstrating good versatility. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of this utility model will become clearer through the drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale to actual dimensions; the focus is on illustrating the main idea of ​​this utility model.

[0014] Figure 1 A schematic diagram of the structure of the bonding and positioning fixture for the launch tube.

[0015] Figure 2 This is a schematic diagram of the structure of the radially moving slider and the wedge block.

[0016] Figure 3 A cross-sectional view of the positioning fixture for bonding the launch tube.

[0017] Figure 4 An exploded structural diagram of the positioning fixture for bonding the launch tube.

[0018] Figure 5 This is a schematic diagram of the structure of the launch tube mounted on the adhesive positioning fixture.

[0019] The components include: 1. Mounting platform; 101. Fixing plate; 102. Mounting platform; 103. Base plate; 104. Column; 2. Variable diameter structure; 201. Wedge block; 202. Radial moving slider; 203. Connecting plate; 204. T-shaped boss; 205. T-shaped groove; 3. Positioning core; 301. Side boss; 4. Drive structure; 401. Lead screw; 402. First bearing seat; 403. Second bearing seat; 404. First bevel gear; 405. Drive shaft; 406. Handwheel; 407. Second bevel gear; 5. Sliding groove; 6. Launch tube. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] Please refer to Figure 1 and Figure 3As shown, this utility model provides a launching tube bonding and positioning fixture, which includes a mounting platform 1, a variable diameter structure 2, a positioning core 3, and a driving structure 4. The mounting platform 1 includes a fixing plate 101, and a mounting recess 102 is provided on the upper end surface of the fixing plate 101. The positioning core 3 is fixedly disposed in the mounting recess 102. The variable diameter structure 2 includes a wedge block 201 disposed inside the positioning core 3. A plurality of radially moving sliders 202 are slidably disposed on the four sides of the wedge block 201. Each radially moving slider... A gap is provided between the outer side of block 202 and the inner wall of positioning core 3. A connecting plate 203 is horizontally provided at the bottom of each radially moving slider 202. Multiple sliding grooves 5 are radially provided on the lower end face of positioning core 3. Each connecting plate 203 is slidably disposed in one of the sliding grooves 5. The driving structure 4 is disposed below the fixed plate 101. The driving structure 4 includes a rotating lead screw 401 that is threadedly connected to the center position of wedge block 201. The lead screw 401 drives wedge block 201 to reciprocate in the vertical direction.

[0024] Furthermore, such as Figure 2 As shown, in one specific embodiment of the wedge block 201, the small-diameter end of the wedge block 201 is vertically downward. The cross-section of the wedge block 201 is square, and the number of radial moving sliders 202 and sliding grooves 5 is four. A radial moving slider 202 is slidably disposed on each inclined side of the wedge block 201. A T-shaped boss 204 is disposed on each of the four inclined sides of the wedge block 201 along its inclined direction. Each radial moving slider 202 is provided with a T-shaped groove 205 that slides with the T-shaped boss 204.

[0025] Furthermore, as a specific embodiment of the mounting platform 1, the mounting platform 1 also includes a base plate 103 and four uprights 104; the bottoms of the four uprights 104 are fixedly connected to the four corners of the upper surface of the base plate 103, and the tops of the four uprights 104 are fixedly connected to the four corners of the lower surface of the fixing plate 101. This arrangement provides the mounting platform 1 with mounting space for the driving structure 4.

[0026] Furthermore, the positioning core 3 is provided with a side boss 301 that mates with the notch in the launch tube 6. The side boss 301 mates with the notch in the stop ring to achieve precise positioning of the stop ring and ensure the precise position of the launch tube 6 and the stop ring.

[0027] Furthermore, such as Figure 4As shown, in one specific embodiment of the drive structure 4, the drive structure 4 further includes a first bearing seat 402 and a second bearing seat 403 fixedly connected to the lower end face of the fixed plate 101; the lead screw 401 is vertically arranged and rotatably connected to the first bearing seat 402 through a bearing, the bottom of the lead screw 401 is located below the first bearing seat 402 and a first bevel gear 404 is arranged on it; the second bearing seat 403 is located on one side of the first bearing seat 402, and a horizontal transmission shaft 405 is rotatably connected to the second bearing seat 403 through a bearing, both ends of the transmission shaft 405 are located outside the second bearing seat 403, and a handwheel 406 and a second bevel gear 407 are respectively arranged at both ends of the transmission shaft 405, the second bevel gear 407 meshing with the first bevel gear 404.

[0028] like Figure 5 As shown, when using the launcher tube bonding and positioning fixture, place the launcher tube 6 body and the stop ring on the positioning core 3, aligning the notch with the side boss 301. Rotate the handwheel 406, which drives the lead screw 401 to rotate via the bevel gear system, causing the wedge block 201 to move downwards. This pushes the four radially moving sliders 202 to expand radially, tensioning the launcher tube 6 body and ensuring a tight bond between the bonding surfaces. After bonding is complete, rotate the handwheel 406 in the opposite direction to retract the four radially moving sliders 202 and remove the workpiece.

[0029] In summary, compared with the traditional tooling with a side boss 301 positioning core 3, the launching tube bonding and positioning tooling provided by this utility model, through clockwise rotation of the handwheel 406, causes the second bevel gear 407 on the transmission shaft 405 mounted with the handwheel 406 to drive the first bevel gear 404 to rotate clockwise. The first bevel gear 404 drives the lead screw 401 mounted with it to rotate in place, thereby driving the wedge block 201 to move downward, forcing the four radially moving sliders 202 to move outward radially and act on the inner circular surface of the launching tube 6 to expand outward, making the bonding surface of the launching tube 6 and the bonding surface corresponding to the stop ring fit more tightly. The bonding is stronger, the effect is better, the efficiency is higher, the concentricity and position can be guaranteed, and the finished product qualification rate is high. Since the movement stroke and direction of the radially moving sliders 202 can be changed by changing the number of rotations and the rotation direction of the handwheel 406, it can be adjusted freely, thus meeting the tensioning, positioning and bonding requirements of launching tubes 6 with different inner diameters within a certain range, and has good versatility.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A launcher bonding positioning tool, characterized in that, This includes the mounting platform, variable diameter structure, positioning core, and drive structure; The mounting platform includes a fixed plate, and a mounting recess is provided on the upper end surface of the fixed plate. The positioning core is fixedly disposed within the mounting recess. The variable diameter structure includes a wedge block disposed inside the positioning core. Multiple radially moving sliders are slidably disposed on the four sides of the wedge block. A gap is provided between the outer side of each radially moving slider and the inner wall of the positioning core. A connecting plate is horizontally disposed at the bottom of each radially moving slider. Multiple sliding grooves are radially disposed on the lower end surface of the positioning core. Each connecting plate is slidably disposed within one of the sliding grooves. The drive structure is located below the fixed plate. The drive structure includes a rotating lead screw that is threadedly connected to the center position of the wedge block. The lead screw drives the wedge block to reciprocate in the vertical direction.

2. The barrel bonding positioning fixture of claim 1, wherein, The smaller diameter end of the wedge block is set vertically downwards.

3. The barrel bonding fixture of claim 2, wherein, The wedge block has a square cross-section and four radial moving sliders and sliding grooves. A radial moving slider is slidably disposed on each inclined side of the wedge block. A T-shaped boss is disposed on each of the four inclined sides of the wedge block along its inclined direction. A T-shaped groove is disposed on each radial moving slider to slide with the T-shaped boss.

4. The barrel bonding fixture of claim 1, wherein, The mounting platform also includes a base plate and four columns; the bottoms of the four columns are fixedly connected to the four corners of the upper surface of the base plate, and the tops of the four columns are fixedly connected to the four corners of the lower surface of the mounting plate.

5. The barrel bonding fixture of claim 1, wherein, The positioning core is provided with a side protrusion that matches the notch of the launch tube.

6. The barrel bonding fixture of claim 1, wherein, The drive structure further includes a first bearing seat and a second bearing seat fixedly connected to the lower end face of the fixed plate; the lead screw is vertically arranged and rotatably connected to the first bearing seat through a bearing, the bottom of the lead screw is located below the first bearing seat and a first bevel gear is arranged on it; the second bearing seat is located on one side of the first bearing seat, and a horizontal transmission shaft is rotatably connected to the second bearing seat through a bearing, both ends of the transmission shaft are located outside the second bearing seat, and a handwheel and a second bevel gear are respectively arranged at both ends of the transmission shaft, the second bevel gear meshing with the first bevel gear.

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