A loading fixture capable of preventing product deformation and scratching

Abstract

The utility model discloses a loading jig that can prevent product deformation and scratching, including a device plate and a jig assembly, the jig assembly including a carrier, a pressure plate, a first sealing ring, a second sealing ring and a bottle-shaped tensioning shaft, the first sealing ring and the second sealing ring are rubber sealing rings, the device plate is concavely provided with a first through hole, the lower end of the first through hole is provided with a circular ring limiter, the lower end of the carrier is convexly provided with a first convex block, the first convex block is adapted to the first through hole, the first convex block is embedded in the first through hole, the center of the carrier is provided with a first groove in a radial direction, the bottom of the first groove is concavely provided with a second through hole, the second through hole is connected to the first through hole, and the bottle-shaped tensioning shaft is movably embedded in the second through hole. The technical solution of the utility model can limit and fix from the inside of the workpiece, avoid scratches and deformation of the appearance of the workpiece, improve the yield of the workpiece, realize processing of multiple stations, and improve work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a loading jig which can prevent products from being deformed or scratched. Background Art

[0002] A fixture is a large category of tools for carpentry, ironwork, fitter, machinery, electronic control and some other handicrafts. It is mainly used as a tool to assist in controlling position or movement. A loading fixture is mainly used as a tool or device to fix, position, measure and protect workpieces in production, testing, assembly and other processes. By using a fixture, the position deviation of the workpiece caused by vibration, gravity and other factors can be avoided, thereby ensuring accuracy and consistency in the production process.

[0003] However, the loading fixtures currently on the market generally adopt a simple limit method of clamping the workpiece from the outside to prevent the workpiece from shifting during production, testing or assembly, which makes the workpiece easily scratched and deformed, affecting the yield of the workpiece. Utility Model Content

[0004] The main purpose of the utility model is to provide a loading fixture that can prevent product deformation and scratching, aiming to solve the technical problem that the existing loading fixture clamps the workpiece from the outside to limit the position, which easily causes the appearance of the workpiece to be scratched and deformed.

[0005] To achieve the above-mentioned purpose, the utility model provides a loading fixture that can prevent product deformation and scratching, including a device plate and a fixture assembly, the fixture assembly including a carrier, a pressure plate, a first sealing ring, a second sealing ring and a bottle-shaped tensioning shaft, the device plate is concavely provided with a first through hole, the first through hole is in a stepped shape, the lower end of the first through hole is provided with a circular ring limiter, the lower end of the carrier is convexly provided with a first protrusion, the first protrusion is adapted to the first through hole, the first protrusion is embedded in the first through hole, the bottom of the first protrusion is abutted against the upper surface of the circular ring limiter, the center of the carrier is provided with a first groove in a radial direction, the bottom of the first groove is concavely provided with a second through hole, the second through hole is connected to the first through hole, the second through hole is adapted to the bottle-shaped tensioning shaft, the bottle The bottle-shaped tensioning shaft is movably embedded in the second through hole, and the bottom of the bottle-shaped tensioning shaft is movably abutted against the upper surface of the circular ring limiter. The outer wall of the carrier platform is recessed with a first outer circular ring, and the first outer circular ring is recessed with a third through hole along the circumferential direction. The third through hole passes through the carrier platform and is connected with the second through hole. The spacing between adjacent third through holes is equal, and the pressure plate is provided with a plurality of ball head pins, which are respectively adapted to the third through holes. The ball head pins are movably embedded in the third through hole and can be movably abutted against the outer wall of the bottle-shaped tensioning shaft. The outer wall of the pressure plate is recessed with a second outer circular ring and a third outer circular ring. The first sealing ring can be elastically and telescopically sleeved on the second outer circular ring, and the second sealing ring can be elastically and telescopically sleeved on the third outer circular ring.

[0006] Optionally, the pressing plate includes four pressing plate assemblies, and cross sections of two adjacent pressing plate assemblies are abutted against each other.

[0007] Optionally, the bottom of the carrier platform is provided with a plurality of first screw holes and first screws, the device plate is provided with a plurality of second screw holes, the second screw holes are adapted to the first screw holes and the first screws, and the first screws are respectively inserted into the second screw holes and tightened to the first screw holes.

[0008] Optionally, a fourth through hole is symmetrically provided at the bottom of the first groove, and the fourth through hole is connected to the upper end of the second through hole and communicated with the second through hole.

[0009] Optionally, a fifth through hole is provided at the center of the circular ring stopper, the fifth through hole is connected to the first through hole, and the diameter of the lower end portion of the bottle-shaped tensioning shaft is not less than the diameter of the fifth through hole.

[0010] Optionally, the diameter of the upper end of the carrier platform is not greater than the diameter of the lower end of the carrier platform.

[0011] Optionally, the first sealing ring and the second sealing ring are rubber sealing rings, and the diameter of the first sealing ring in a natural state is not greater than the diameter of the second sealing ring in a natural state.

[0012] Optionally, a plurality of fixture assemblies may be provided on the device plate.

[0013] The technical solution of the utility model has the following beneficial effects: in the technical solution of the utility model, by providing a pressure plate, a first sealing ring, a second sealing ring and a bottle-shaped tensioning shaft, the workpiece can be limited and fixed from the inside of the workpiece, thereby avoiding scratches and deformation of the workpiece appearance and improving the yield of the workpiece; by providing multiple jig assemblies, multiple workpieces can be processed to improve work efficiency; by providing multiple pressure plate assemblies, the production and assembly are convenient and fast, and the adjustment is convenient, thereby improving applicability; by providing a first through hole in a stepped shape, the jig assembly can be limited and fixed simply and quickly; by providing a bottle-shaped tensioning shaft and a second through hole, the bottle-shaped tensioning shaft can be tightened within a limited range, and the product can be effectively limited and fixed, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 The overall structure of a loading fixture that can prevent product deformation and scratching is shown in FIG. Figure 1 ;

[0016] Figure 2 The overall structure of a loading fixture that can prevent product deformation and scratching is shown in FIG. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a loading fixture capable of preventing product deformation and scratching according to an embodiment of the utility model;

[0018] Figure 4 This is another exploded structural schematic diagram of a loading fixture capable of preventing product deformation and scratching according to an embodiment of the utility model.

[0019] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] The utility model provides a loading fixture which can prevent products from being deformed and scratched.

[0024] like Figures 1 to 4As shown, in one embodiment of the utility model, the loading fixture that can prevent product deformation and scratching includes a device plate 100 and a fixture assembly. The device plate 100 can be provided with multiple fixture assemblies to realize simultaneous processing of multiple workpieces and improve work efficiency. The fixture assembly includes a carrier 210, a pressure plate 220, a first sealing ring 230, a second sealing ring 240 and a bottle-shaped tensioning shaft 250. The device plate 100 is recessed with a first through hole 110. The first through hole 110 is in a stepped shape, which can simply and quickly realize the limiting and fixing of the fixture assembly. The lower end of the first through hole 110 is provided with a circular ring limiter 111, and the lower end of the carrier 210 is convexly provided with a first protrusion 214, which is adapted to the first through hole 110. The first protrusion 214 is adapted to the first through hole 110. 214 is embedded in the first through hole 110, the bottom of the first protrusion 214 abuts against the upper surface of the circular ring limiter 111, the center of the carrier 210 is provided with a first groove 212 in the radial direction, the bottom of the first groove 212 is recessed with a second through hole 2121, the second through hole 2121 is connected to the first through hole 110, the second through hole 2121 is adapted to the bottle-shaped tensioning shaft 250, the bottle-shaped tensioning shaft 250 is movably embedded in the second through hole 2121, the bottom of the bottle-shaped tensioning shaft 250 is movably abutted against the upper surface of the circular ring limiter 111, the bottle-shaped tensioning shaft is tightened within a limited range, the product can be effectively limited and fixed, the operation is simple, the outer wall of the carrier 210 is recessed with a first outer circular ring 211, the first outer circular ring 211 A third through hole 2111 is recessed in the circumferential direction, the third through hole 2111 passes through the carrier 210 and is connected to the second through hole 2121, and the spacing between adjacent third through holes 2111 is equal. The pressure plate 220 includes four pressure plate assemblies, and the cross sections of two adjacent pressure plate assemblies are abutted. The production and assembly of the pressure plate assemblies are convenient and fast, and they are easy to adjust to improve applicability. The pressure plate 220 is provided with a plurality of ball head pins 222, and the ball head pins 222 are respectively adapted to the third through holes 2111. The ball head pins 222 can be movably embedded in the third through holes 2111 and can be movably abutted against the outer wall of the bottle-shaped tensioning shaft 250. The outer wall of the pressure plate 220 is recessed with a second outer ring 223 and a third outer ring 224, and the first sealing ring 230 can be elastically The first sealing ring 230 and the second sealing ring 240 are elastically and telescopically sleeved on the second outer ring 223, and the second sealing ring 240 is elastically and telescopically sleeved on the third outer ring 224. The first sealing ring 230 and the second sealing ring 240 are rubber sealing rings. The diameter of the first sealing ring 230 in the natural state is not greater than the diameter of the second sealing ring 240 in the natural state, which can effectively fix the bottle-shaped tensioning shaft 250. The bottom of the carrier 210 is provided with a plurality of first screw holes 213 and a first screw, and the device plate 100 is provided with a plurality of second screw holes 120. The second screw holes 120 are adapted to the first screw holes 213 and the first screws. The first screws are respectively inserted into the second screw holes 120 and tightened in the first screw holes 213, so as to further fix the carrier 210 and effectively improve the stability.A fourth through hole 2122 is symmetrically provided at the bottom of the first groove 212. The fourth through hole 2122 is connected to the upper end of the second through hole 2121 and communicates with the second through hole 2121, so as to facilitate the adjustment of the bottle-shaped tensioning shaft.

[0025] Specifically, a fifth through hole 1111 is provided at the center of the circular ring limiter 111, and the fifth through hole 1111 is connected to the first through hole 110. The diameter of the lower end of the bottle-shaped tensioning shaft 250 is not less than the diameter of the fifth through hole 1111, which further limits the activity area of ​​the bottle-shaped tensioning shaft, accurately adjusts the size of the first outer circular ring, limits the workpiece, and the diameter of the upper end of the carrier 210 is not greater than the diameter of the lower end of the carrier 210. The overall shape is small at the top and large at the bottom, corresponding to the internal structure of the workpiece, to achieve effective adaptation.

[0026] Specifically, the working principle and process of the utility model are as follows: by adjusting the position of the bottle-shaped tensioning shaft, the tightness of the ball pin is adjusted, which reacts to the pressure plate. The first sealing ring and the second sealing ring are elastically deformed under the force, thereby adjusting the size of the pressure plate, thereby achieving tightening and limiting from the inside of the workpiece, and performing processing operations, avoiding scratches and deformation of the workpiece appearance caused by clamping from the outside.

[0027] The utility model has the following advantages:

[0028] 1. By setting a pressing plate, a first sealing ring, a second sealing ring and a bottle-shaped tensioning shaft, the workpiece can be limited and fixed from the inside of the workpiece, avoiding scratches and deformation of the workpiece appearance and improving the yield of the workpiece;

[0029] 2. By setting up multiple fixture components, multiple workpieces can be processed at the same time to improve work efficiency;

[0030] 3. By setting up multiple pressing plate components, the production and assembly are convenient and quick, and the adjustment is convenient, which improves the applicability;

[0031] 4. By providing a first through hole in a stepped shape, the fixture assembly can be simply and quickly limited and fixed;

[0032] 5. By providing the bottle-shaped tensioning shaft and the second through hole, the bottle-shaped tensioning shaft can be tightened within a limited range, which can effectively limit and fix the product, and the operation is simple.

[0033] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A loading fixture that can prevent product deformation and scratching, characterized in that: The tool assembly comprises a device plate and a fixture assembly, wherein the fixture assembly comprises a carrier, a pressure plate, a first sealing ring, a second sealing ring and a bottle-shaped tensioning shaft, the device plate is concavely provided with a first through hole, the first through hole is in a stepped shape, a circular ring limiter is provided at the lower end of the first through hole, a first convex block is convexly provided at the lower end of the carrier, the first convex block is adapted to the first through hole, the first convex block is embedded in the first through hole, the bottom of the first convex block abuts against the upper surface of the circular ring limiter, a first groove is opened in the center of the carrier in a radial direction, a second through hole is concavely provided at the bottom of the first groove, the second through hole is connected to the first through hole, the second through hole is adapted to the bottle-shaped tensioning shaft, and the bottle-shaped tensioning shaft can be movably embedded in the second Through hole, the bottom of the bottle-shaped tensioning shaft is movably abutted against the upper surface of the circular ring limiter, the outer wall of the carrier platform is recessed with a first outer ring, and the first outer ring is recessed with a third through hole along the circumferential direction, the third through hole passes through the carrier platform and is connected with the second through hole, and the spacing between adjacent third through holes is equal, the pressure plate is provided with a plurality of ball head pins, the ball head pins are respectively adapted to the third through holes, the ball head pins can be movably embedded in the third through holes, and can be movably abutted against the outer wall of the bottle-shaped tensioning shaft, the outer wall of the pressure plate is recessed with a second outer ring and a third outer ring, the first sealing ring can be elastically and telescopically sleeved on the second outer ring, and the second sealing ring can be elastically and telescopically sleeved on the third outer ring.

2. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: The pressing plate includes four pressing plate assemblies, and cross sections of two adjacent pressing plate assemblies are in contact with each other.

3. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: The bottom of the carrier platform is provided with a plurality of first screw holes and first screws, and the device plate is provided with a plurality of second screw holes, the second screw holes are adapted to the first screw holes and the first screws, and the first screws are respectively inserted into the second screw holes and tightened to the first screw holes.

4. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: A fourth through hole is symmetrically provided at the bottom of the first groove, and the fourth through hole is connected to the upper end of the second through hole and communicated with the second through hole.

5. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: A fifth through hole is provided at the center of the circular stopper, the fifth through hole is connected to the first through hole, and the diameter of the lower end of the bottle-shaped tensioning shaft is not less than the diameter of the fifth through hole.

6. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: The diameter of the upper end of the carrier platform is not greater than the diameter of the lower end of the carrier platform.

7. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: The first sealing ring and the second sealing ring are rubber sealing rings, and the diameter of the first sealing ring in a natural state is not greater than the diameter of the second sealing ring in a natural state.

8. The loading jig capable of preventing product deformation and scratching according to claim 1, characterized in that: A plurality of fixture components may be provided on the device plate.

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