CN219075564U - Utensil for precision parts with shock-absorbing protective structure - Google Patents

Abstract

The utility model relates to the technical field of precision parts, in particular to an appliance for a precision part with a shock absorption protection structure. It includes the handle mechanism of tup and tup bottom, and handle mechanism includes at least: the telescopic rod comprises a fixed rod, the top of the fixed rod is provided with a movable rod in a sliding manner, the movable rod is in threaded connection with the bottom of the hammer head, the outer wall of the fixed rod, which is close to the end part, is provided with a limit groove, a clamping block is arranged in the limit groove in a sliding manner, and a limit spring is fixedly connected between the inner surface of the clamping block and the inner wall of the limit groove; the anti-vibration protection sleeve is characterized in that a clamping groove is formed in the outer wall of the anti-vibration protection sleeve, the inside of the clamping groove is matched with a clamping block, an air bag cushion is arranged on the outer wall of the anti-vibration protection sleeve and is arc-shaped, the air bag cushion is made of elastic rubber, an inflatable tube is communicated with the bottom of the air bag cushion, and a sealing cover is sleeved at the end part of the inflatable tube.

Description

Utensil for precision parts with shock-absorbing protective structure

Technical Field

The utility model relates to the technical field of precision parts, in particular to an appliance for a precision part with a shock absorption protection structure.

Background

The precision part is a part widely applied to industries such as automobiles, communication, medical treatment, clocks, mobile phones and computers, is more precise than the common part, is more suitable for industries with high requirements on precision, and is required to be knocked and installed by means of a hammer device when in use, but the current hammer is large in shock impact when in use, so that a worker can grasp the shock when knocking the handle to shake the hand to tingle, the current hammer is uncomfortable to use, the current hammer cannot stably grasp the handle to knock, the hand cannot be easily slipped to cause dangerous accidents, the current vertical direction cannot accurately knock the precision part when knocking the precision part, so that the precision part is easy to knock and topple, and the installation accuracy is not facilitated.

Disclosure of Invention

The utility model aims to provide an appliance for precision parts with a shock absorption protection structure, which solves the problems in the background technology.

In order to achieve the above object, the present utility model provides an apparatus for precision parts with a shock-absorbing protection structure, comprising a hammer head and a handle mechanism at the bottom of the hammer head, the handle mechanism at least comprising:

the telescopic rod comprises a fixed rod, a movable rod is slidably arranged at the top of the fixed rod, the movable rod is in threaded connection with the bottom of the hammer head, a limit groove is formed in the outer wall, close to the end, of the fixed rod, a clamping block is slidably arranged in the limit groove, and a limit spring is fixedly connected between the inner surface of the clamping block and the inner wall of the limit groove;

the cushioning protection sleeve, the draw-in groove has been seted up to cushioning protection sleeve outer wall, the draw-in groove inside with fixture block looks adaptation, cushioning protection sleeve outer wall is provided with the gasbag pad, the gasbag pad is "arc" form, the gasbag pad adopts elastic rubber material, gasbag pad bottom intercommunication has the gas tube, gas tube tip cover is equipped with sealed lid.

When the handle mechanism is specifically used, the cushioning protection sleeve is clamped and sleeved on the outer wall of the fixed rod, then the bottom thread of the hammer head is rotationally connected to the end part of the movable rod, a worker holds the outer wall of the cushioning protection sleeve by hand, the air bag pad is positioned at the palm, then the sealing cover is pulled out, the end part of the air charging pipe is inflated into the air bag pad, the air bag pad is inflated to be attached to the palm, therefore, workers with different sizes can stably hold the outer wall of the cushioning protection sleeve, the worker drives the telescopic rod to enable the hammer head to knock the precise part, and the elastic force of the air bag pad can buffer the impact of the rigid shock of vibration on the palm in the knocking process.

As a further improvement of the technical scheme, a connecting sleeve is arranged at the bottom of the hammer head, and the inside of the connecting sleeve is in threaded fit connection with the end part of the movable rod.

As a further improvement of the technical scheme, a plurality of screw holes are formed in the outer wall of the movable rod at equal intervals, an extrusion screw is connected with the outer wall of the fixed rod close to the end portion in a threaded manner, and the outer wall of the extrusion screw is connected with the inner threads of the screw holes in a matched manner.

As a further improvement of the technical scheme, two symmetrical connecting plates are arranged on the outer wall of the cushioning protection sleeve, a fixing pad is arranged between the two connecting plates in a sliding mode, and a rubber pad is arranged on the inner surface of the fixing pad.

As a further improvement of the technical scheme, the two ends of the fixing pad are respectively provided with an adjusting plate, the two adjusting plates respectively slide inside the two connecting plates, one of the connecting plates is internally provided with a conveying screw rod in a rotating mode, and the outer wall of the conveying screw rod is in threaded connection with the surface of one of the adjusting plates.

As a further improvement of the technical scheme, the end part of the conveying screw rod is rotatably extended out of the connecting plate, a rotating disc is fixedly connected with the inside of the connecting plate, and a rotating hand is fixedly connected with the edge of the outer surface of the rotating disc.

As a further improvement of the technical scheme, the two side walls of the hammer head are provided with the protruding blocks, the inside of each protruding block is provided with the hollow cavity, the inside of each hollow cavity is provided with the sliding disc in a sliding mode, the end portion of each sliding disc is fixedly connected with the sliding rod, and the end portion of each sliding rod extends out in a sliding mode and is fixedly connected with the adjusting frame inside each hollow cavity.

As a further improvement of the technical scheme, the outer wall of the adjusting frame is provided with a supporting block in a sliding mode, the outer surface of the end part of the supporting block is communicated with a communicating cylinder, the end part of the communicating cylinder is communicated with a sucker, and the sucker is conical.

As a further improvement of the technical scheme, a linkage gear is rotatably arranged in the adjusting frame, a linkage rod is fixedly connected to the end part of the linkage gear, and the end part of the linkage rod is rotatably extended out of the adjusting frame and is fixedly connected with a turntable.

As a further improvement of the technical scheme, the outer wall of the supporting block is provided with a sliding groove, a piston disc is arranged in the communicating cylinder in a sliding manner, the end part of the piston disc is fixedly connected with a connecting rod, an adjusting spring is fixedly connected between the end part of the connecting rod and the inner wall of the supporting block, the outer wall of the end part of the connecting rod is fixedly connected with a moving plate, and the end part of the moving plate slides in the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this precision parts uses utensil with shock attenuation protective structure, through to the inside inflation of gasbag pad, make the gasbag pad inflate the inflation, increase the elasticity of gasbag pad, make the staff when using, can the palm hold the gasbag pad, drive the telescopic link and make the tup strike precision parts, in the striking process, the elasticity of gasbag pad can cushion the rigid impact of concussion to the collision of palm, makes the staff strike more comfortablely.

2. In this precision parts uses utensil with shock attenuation protective structure, when holding the shock attenuation lag outer wall through staff's palm, make gasbag pad inflation laminating palm to the staff that makes the hand not unidimensional all can be stable holds the shock attenuation lag outer wall, holds firmly and drops when avoiding beating.

3. In this precision parts uses utensil with shock attenuation protective structure, establish at the dead lever outer wall through shock attenuation lag joint cover, when dismantling, only need press the fixture block once more, conveniently take off the shock attenuation lag, be convenient for follow-up washing change shock attenuation lag, the practicality is stronger.

4. In this precision parts uses utensil with shock attenuation protective structure, through holding the shock attenuation lag, pass the finger from the fixed bolster is inside, and the fixed bolster slides between two connecting plates, makes fixed bolster internal surface laminating finger, with the spacing fixed at the shock attenuation lag outer wall of finger, avoids when beating, skidding and drops and causes dangerous accident.

5. In this precision parts uses utensil with shock attenuation protective structure, slide at the alignment jig outer wall through the supporting shoe, the slide bar drives the sliding tray simultaneously and slides to the cavity tip, makes the sucking disc can extrude and adsorb the precision parts outside that fixes in needs to strike, then when the tup strikes precision parts, makes the tup can only follow the sliding tray at cavity inside gliding direction rectilinear movement to make the tup strike precision parts perpendicularly, avoid striking the slope, influence precision parts's installation effect.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1;

FIG. 2 is a schematic view of the handle mechanism of embodiment 1;

FIG. 3 is an exploded view of the telescopic rod of embodiment 1;

FIG. 4 is a schematic view of the structure of a fixing rod in embodiment 1;

FIG. 5 is a schematic view of the shock absorbing jacket structure of embodiment 1;

FIG. 6 is a schematic view of the fixing pad of embodiment 1;

FIG. 7 is an exploded view of the structure of the connecting plate of embodiment 1;

fig. 8 is a schematic diagram of the hammer head structure of embodiment 1;

FIG. 9 is an exploded view of the bump structure of example 1;

fig. 10 is an exploded plan view of the supporting block structure of embodiment 1.

The meaning of each reference sign in the figure is:

100. a hammer head; 110. connecting sleeves; 120. a bump; 121. a cavity; 122. a slide bar; 1220. a sliding plate; 123. an adjusting frame; 1231. a linkage gear; 1232. a linkage rod; 1233. a turntable; 124. a support block; 1240. a rack; 1241. a chute; 125. a communicating tube; 1250. a suction cup; 1251. a piston disc; 1252. a connecting rod; 1253. an adjusting spring; 1254. a moving plate;

200. a handle mechanism;

210. a telescopic rod; 211. a fixed rod; 2110. a limit groove; 2111. a clamping block; 2112. a limit spring; 212. a movable rod; 2120. a screw hole; 213. extruding a screw;

220. damping protective sleeve; 221. a clamping groove; 222. an airbag cushion; 2221. an inflation tube; 2222. sealing cover; 223. a connecting plate; 2231. a conveying screw rod; 2232. a rotating disc; 2233. turning hands; 224. a fixing pad; 2240. an adjusting plate; 2241. and a rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 10, the present embodiment provides an apparatus for precision parts with a shock absorbing protection structure, which includes a hammer head 100 and a handle mechanism 200 at the bottom of the hammer head 100, wherein the handle mechanism 200 at least includes:

the telescopic rod 210 comprises a fixed rod 211, a movable rod 212 is slidably arranged at the top of the fixed rod 211, and the movable rod 212 is in threaded connection with the bottom of the hammer head 100, so that the hammer head 100 and the handle mechanism 200 are conveniently connected and fixed, a limit groove 2110 is formed in the outer wall of the fixed rod 211 close to the end part, a clamping block 2111 is slidably arranged in the limit groove 2110, a limit spring 2112 is fixedly connected between the inner surface of the clamping block 2111 and the inner wall of the limit groove 2110, and the clamping block 2111 can be pushed and pulled to slide in the limit groove 2110;

the buffer protection sleeve 220, the clamping groove 221 is arranged on the outer wall of the buffer protection sleeve 220, the inside of the clamping groove 221 is matched with the clamping block 2111, the clamping block 2111 is pressed, the clamping block 2111 slides into the limiting groove 2110, the limiting spring 2112 is compressed, the buffer protection sleeve 220 is sleeved on the outer wall of the fixing rod 211, under the elastic force of the restoring state of the limiting spring 2112, the clamping block 2111 is driven to slide out of the limiting groove 2110 and is inserted into the clamping groove 221, the buffer protection sleeve 220 is clamped and sleeved on the outer wall of the fixing rod 211, when the buffer protection sleeve 220 is detached, the clamping block 2111 is only pressed again, the buffer protection sleeve 220 is conveniently taken down, the buffer protection sleeve 220 is convenient to clean and replace, the practicability is stronger, the outer wall of the buffer protection sleeve 220 is provided with the air bag cushion 222, the air bag cushion 222 is arc-shaped, the air bag cushion 222 adopts elastic rubber material, the air bag cushion 222 can be inflated, the air bag cushion 222 is inflated and expanded, the elastic force of the air bag cushion 222 is increased, when in use, a worker can hold the airbag cushion 222 by palm, drive the telescopic rod 210 to knock the hammer 100 on a precise part, in the knocking process, the elastic force of the airbag cushion 222 can buffer the impact of the shocking rigid impact on palm, so that the worker knocks more comfortably, the bottom of the airbag cushion 222 is communicated with the inflation tube 2221, the end part of the inflation tube 2221 is sleeved with the sealing cover 2222, the sealing cover 2222 is pulled out, the airbag cushion 222 can be inflated from the end part of the inflation tube 2221, when the outer wall of the cushioning protection sleeve 220 is held by the palm of a worker, the airbag cushion 222 is inflated to be attached to the palm of the hand, so that workers with different hands can stably hold the outer wall of the cushioning protection sleeve 220, the worker can firmly hold the outer wall of the cushioning protection sleeve to avoid falling off when knocking, after inflation is finished, the sealing cover 2222 can be sleeved at the end part of the inflation tube 2221, gas in the airbag cushion 222 is prevented from escaping, and the practicability is stronger.

When the handle mechanism 200 in the utility model is specifically used, the cushioning protection sleeve 220 is clamped and sleeved on the outer wall of the fixed rod 211, then the bottom thread of the hammer head 100 is rotationally connected to the end part of the movable rod 212, a worker holds the outer wall of the cushioning protection sleeve 220 by hand, the air bag pad 222 is positioned at the palm, then the sealing cover 2222 is pulled out, the end part of the air charging pipe 2221 can be inflated into the air bag pad 222, the air bag pad 222 is inflated to be attached to the palm, thus workers with different sizes can stably hold the outer wall of the cushioning protection sleeve 220, the worker drives the telescopic rod 210 to enable the hammer head 100 to knock the precise parts, and the elastic force of the air bag pad 222 can buffer the impact of the rigid shock to the palm in the knocking process.

In this embodiment, in order to facilitate the disassembly of the hammer head 100, the bottom of the hammer head 100 is provided with the connecting sleeve 110, the inside of the connecting sleeve 110 is in threaded fit connection with the end of the movable rod 212, so that the connecting sleeve 110 can be aligned to the end of the movable rod 212 to rotate, and the connecting sleeve 110 is fixedly connected with the end of the movable rod 212 through threads, so that the hammer head 100 and the movable rod 212 are fixedly connected, and when the hammer head 100 is disassembled, only the connecting sleeve 110 needs to be unscrewed, thereby facilitating the subsequent maintenance and replacement of the hammer head 100.

Wherein, in order to change the length of telescopic link 210, adjust the striking position of precision parts, a plurality of screw 2120 have been seted up to equidistant on movable rod 212 outer wall, the outer wall threaded connection that fixed lever 211 is close to the tip has extrusion screw 213, extrusion screw 213 outer wall and the inside threaded fit connection of screw 2120, can push-and-pull movable rod 212 upper end, make movable rod 212 lower extreme slide in fixed lever 211, thereby change the length of telescopic link 210, conveniently adjust the striking position of precision parts, the practicality is stronger, after confirming the length of telescopic link 210, can penetrate the fixed lever 211 with extrusion screw 213 tip screw thread, make extrusion screw 213 screw thread change into one of them screw 2120 inside, make movable lever 212 spacing fix in fixed lever 211 inside, the length of fixed telescopic link 210, guarantee structural integrity.

Further, in order to fix the finger spacing at the shock-absorbing protective cover 220 outer wall, the shock-absorbing protective cover 220 outer wall is provided with two symmetrical connecting plates 223, slide between two connecting plates 223 is provided with fixed pad 224, fixed pad 224 internal surface is provided with rubber pad 2241, rubber pad 2241 adopts elastic rubber material, wear resistance is good, elasticity is sufficient, can more comfortable when contacting patient's hand skin, can be when holding the shock-absorbing protective cover 220, pass the finger from fixed pad 224 inside, fixed pad 224 slides between two connecting plates 223, make fixed pad 224 internal surface laminating finger, fix the finger spacing at the shock-absorbing protective cover 220 outer wall, avoid skidding and drop when beating and cause dangerous accident.

Wherein, in order to both ends of the fixed pad 224 are provided with adjusting plates 2240, two adjusting plates 2240 slide inside two connecting plates 223 respectively, one of them connecting plate 223 is inside to rotate and is provided with the conveying lead screw 2231, conveying lead screw 2231 outer wall and one of them adjusting plate 2240 surface threaded connection, when conveying lead screw 2231 rotates, can make adjusting plate 2240 surface slide along the screw thread of conveying lead screw 2231 outer wall to drive fixed pad 224 side-to-side slip, it is more stable accurate to spacing fixed finger, the practicality is stronger.

Specifically, in order to make the rotation of the transmission screw rod 2231 easier and more convenient, the end portion of the transmission screw rod 2231 rotates and extends out of the connecting plate 223 to be fixedly connected with a rotating disc 2232, the edge of the outer surface of the rotating disc 2232 is fixedly connected with a rotating hand 2233, the rotating hand 2233 is held to rotate, and the rotating disc 2232 can be driven to rotate, so that the transmission screw rod 2231 is easy and more convenient to rotate in the connecting plate 223, and the operation is convenient.

Furthermore, in order to make the two sidewalls of the hammer head 100 have the protrusions 120, the cavities 121 are formed in the protrusions 120, the sliding discs 1220 are slidably disposed in the cavities 121, the end portions of the sliding discs 1220 are fixedly connected with the sliding rods 122, the end portions of the sliding rods 122 are pushed and pulled, the sliding discs 1220 can slide left and right in the cavities 121, and the end portions of the sliding rods 122 slidably extend out of the cavities 121 to be fixedly connected with the adjusting frames 123.

In addition, in order to make the tup 100 strike precision parts perpendicularly, the outer wall of the regulating frame 123 slides and has the supporting shoe 124, the surface intercommunication of supporting shoe 124 tip has a intercommunication section of thick bamboo 125, intercommunication section of thick bamboo 125 tip intercommunication has sucking disc 1250, sucking disc 1250 is "circular cone" form, slide supporting shoe 124 at the regulating frame 123 outer wall, slide bar 122 drives sliding tray 1220 and slides to cavity 121 tip simultaneously, make sucking disc 1250 can extrude the absorption and fix in the precision parts outside that needs to strike, then when the tup 100 strikes precision parts, make tup 100 only can be along sliding tray 1220 inside gliding direction rectilinear movement, thereby make tup 100 strike precision parts perpendicularly, avoid striking the slope, influence precision parts's installation effect.

It is worth noting that, in order to make the sucking disc 1250 extrude the laminating precision part outside, it is provided with linkage gear 1231 to rotate inside the alignment jig 123, linkage gear 1231 tip fixedly connected with gangbar 1232, linkage bar 1232 tip rotates and stretches out the inside fixedly connected with carousel 1233 of alignment jig 123, hold carousel 1233 and rotate, make linkage bar 1232 drive linkage gear 1231 and rotate, linkage gear 1231 outer wall meshing is connected with rack 1240, rack 1240 outer wall fixed connection supporting shoe 124 outer wall, linkage gear 1231 rotates, can make rack 1240 along linkage gear 1231 outer wall meshing slip, thereby drive supporting shoe 124 side-to-side slip, can make sucking disc 1250 extrude the laminating precision part outside, improve fixed stability.

Specifically, in order to firmly adsorb the sucking disc 1250 on two sides of a precision part and improve stability, the outer wall of the supporting block 124 is provided with the sliding groove 1241, the inside of the communicating cylinder 125 is slidably provided with the piston disc 1251, the end part of the piston disc 1251 is fixedly connected with the connecting rod 1252, an adjusting spring 1253 is fixedly connected between the end part of the connecting rod 1252 and the inner wall of the supporting block 124, the outer wall of the end part of the connecting rod 1252 is fixedly connected with the moving plate 1254, the end part of the moving plate 1254 slides in the sliding groove 1241, the piston disc 1251 is positioned at the end part of the communicating cylinder 125 and slides in the sliding groove 1241 by pushing and pulling the moving plate 1254, the connecting rod 1252 drives the piston disc 1251 to slide, then the sucking disc 1253 is extruded outside the precision part, the piston disc 1251 is driven to slide inwards the supporting block 124 under the elastic action of the original state of the adjusting spring 1253, the air in the sucking disc 1250 is sucked into the communicating cylinder 125, and the suction of the air in the inside the sucking disc 1250 can be firmly adsorbed on two sides of the precision part, and unstable fixation of the hammer 100 is avoided when the hammer 100 is lifted.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides an utensil for precision parts with shock attenuation protective structure, includes tup (100) and handle mechanism (200) of tup (100) bottom, its characterized in that: the handle mechanism (200) comprises at least:

the telescopic rod (210), telescopic rod (210) includes dead lever (211), dead lever (211) top slip is provided with movable rod (212), movable rod (212) with tup (100) bottom threaded connection, spacing groove (2110) have been seted up to the outer wall that dead lever (211) is close to the tip, the inside slip of spacing groove (2110) is provided with fixture block (2111), fixture block (2111) internal surface with fixedly connected with spacing spring (2112) between spacing groove (2110) inner wall;

the utility model provides a shock-absorbing protective cover (220), draw-in groove (221) have been seted up to shock-absorbing protective cover (220) outer wall, draw-in groove (221) inside with fixture block (2111) looks adaptation, shock-absorbing protective cover (220) outer wall is provided with gasbag pad (222), gasbag pad (222) are "arc" form, gasbag pad (222) adopt elastic rubber material, gasbag pad (222) bottom intercommunication has gas tube (2221), gas tube (2221) tip cover is equipped with sealed lid (2222).

2. The instrument for precision parts having a shock-absorbing protective structure according to claim 1, wherein: the bottom of the hammer head (100) is provided with a connecting sleeve (110), and the inside of the connecting sleeve (110) is in threaded fit connection with the end part of the movable rod (212).

3. The instrument for precision parts having a shock-absorbing protective structure according to claim 1, wherein: a plurality of screw holes (2120) are formed in the outer wall of the movable rod (212) at equal intervals, an extrusion screw (213) is connected to the outer wall of the fixed rod (211) close to the end portion in a threaded mode, and the outer wall of the extrusion screw (213) is connected with the inner portion of the screw hole (2120) in a threaded mode.

4. The instrument for precision parts having a shock-absorbing protective structure according to claim 1, wherein: the anti-vibration protection sleeve is characterized in that two symmetrical connecting plates (223) are arranged on the outer wall of the anti-vibration protection sleeve (220), a fixing pad (224) is arranged between the two connecting plates (223) in a sliding mode, and a rubber pad (2241) is arranged on the inner surface of the fixing pad (224).

5. The instrument for precision parts having a shock-absorbing protective structure according to claim 4, wherein: the fixed pad (224) both ends all are provided with regulating plate (2240), two regulating plate (2240) are respectively slided inside two connecting plate (223), one of them connecting plate (223) inside rotates and is provided with conveying lead screw (2231), conveying lead screw (2231) outer wall with one of them regulating plate (2240) surface threaded connection.

6. The instrument for precision parts having a shock-absorbing protective structure according to claim 5, wherein: the end part of the conveying screw rod (2231) is rotatably extended out of the connecting plate (223), a rotating disc (2232) is fixedly connected with the inside of the connecting plate, and a rotating hand (2233) is fixedly connected with the edge of the outer surface of the rotating disc (2232).

7. The instrument for precision parts having a shock-absorbing protective structure according to claim 1, wherein: the hammer is characterized in that protruding blocks (120) are arranged on two side walls of the hammer head (100), a cavity (121) is formed in the protruding blocks (120), a sliding disc (1220) is arranged in the cavity (121) in a sliding mode, a sliding rod (122) is fixedly connected to the end portion of the sliding disc (1220), and an adjusting frame (123) is fixedly connected to the end portion of the sliding rod (122) in a sliding mode and extends out of the cavity (121).

8. The instrument for precision parts having a shock-absorbing protective structure according to claim 7, wherein: the outer wall of the adjusting frame (123) is provided with a supporting block (124) in a sliding mode, the outer surface of the end portion of the supporting block (124) is communicated with a communicating cylinder (125), the end portion of the communicating cylinder (125) is communicated with a sucking disc (1250), and the sucking disc (1250) is in a conical shape.

9. The instrument for precision parts having a shock-absorbing protective structure according to claim 8, wherein: the inside rotation of alignment jig (123) is provided with linkage gear (1231), linkage gear (1231) tip fixedly connected with gangbar (1232), gangbar (1232) tip rotation stretches out inside fixedly connected with carousel (1233) of alignment jig (123).

10. The instrument for precision parts having a shock-absorbing protective structure according to claim 9, wherein: spout (1241) has been seted up to supporting shoe (124) outer wall, inside slip of feed through section of thick bamboo (125) is provided with piston disc (1251), piston disc (1251) tip fixedly connected with connecting rod (1252), connecting rod (1252) tip with fixedly connected with adjusting spring (1253) between supporting shoe (124) inner wall, connecting rod (1252) tip outer wall fixedly connected with movable plate (1254), movable plate (1254) tip slides inside spout (1241).

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