Universal clamp for test bench

Abstract

The utility model relates to the technical field of clamps, and provides a universal clamp for a test bed, which comprises a base, an adjusting port is arranged at the edge of the top surface of the base, a movable support is clamped on one side of the top surface of the base, an adjusting screw is in threaded connection with the lower end of the movable support, and a first clamp is fixedly arranged at the top of the side wall of the movable support. The first clamp comprises an adjusting frame, a fixed clamping plate and a movable clamping plate, a fixed support is fixedly arranged on the other side of the top face of the base, a second clamp is fixedly arranged on the top of the side wall of the fixed support, and the second clamp and the first clamp are the same in structure. According to the clamp, the distance between the first clamp and the second clamp can be adjusted, so that the clamping width can be conveniently adjusted when oil injectors of different models are clamped; the distance between the movable clamping plate and the fixed clamping plate can be adjusted by sliding the movable clamping plate on the inner side of the adjusting frame, and the clamping length can be adjusted when different types of oil sprayers are clamped; the whole operation is flexible and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a universal clamp for a test bench. Background Art

[0002] A fixture is a mechanical device used to fix and position workpieces in industrial production. It usually consists of a clamping device and a supporting device. The clamping device can fix the workpiece tightly on the workbench, and the supporting device can provide the necessary support force to ensure that the workpiece does not move or loosen during processing. When testing the injector, it is necessary to clamp the injector with the help of a fixture. The injector is a precision device with very high processing accuracy, which requires a large dynamic flow range, strong anti-clogging and anti-pollution capabilities, and good atomization performance. The injector receives the injection pulse signal sent by the ECU to accurately control the amount of fuel injection.

[0003] The current clamps used for clamping injectors are often difficult to adjust. Since many different types of injectors are tested during testing, conventional clamps that can only adjust the clamping width are not flexible enough and are inconvenient to clamp injectors of different lengths and heights.

[0004] Therefore, a universal fixture for a test bench with flexible adjustment and good clamping effect is needed. Summary of the invention

[0005] In order to solve the above problems, the utility model proposes a universal clamp for a test bench, which has the characteristics of flexible and convenient adjustment and good clamping effect.

[0006] In order to achieve the above purpose, the utility model proposes the following specific solutions:

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said adjusting base is an industrial tool and said adjusting base is a steel tool provided with a steel bar on the top of said adjusting base.

[0008] As an optimal technical solution for a universal clamp of a test bench of the utility model, a chuck assembly is fixedly provided on one side wall of the movable clamp plate, and the chuck assembly includes an L-shaped connecting tube, a guide rod, a support spring, a sleeve tube and a rubber chuck, one end of the L-shaped connecting tube is fixed on the side wall of the movable clamp plate, a guide rod is fixedly provided on the inner side of the L-shaped connecting tube, a support spring is sleeved on the outer side of the guide rod, one end of the support spring is fixed on the inner wall of the L-shaped connecting tube, the other end of the support spring is fixedly provided with a sleeve tube, one end of the guide rod is inserted into the inner side of the sleeve tube, one end of the sleeve tube is movably inserted into the inner side of the L-shaped connecting tube, and a rubber chuck is fixedly provided on one side wall of the sleeve tube.

[0009] As an optimal technical solution for a universal clamp of a test bench of the utility model, an adjustment groove is opened in the middle of one end of the base, sliding grooves are symmetrically opened on the inner wall of the adjustment groove, through holes are opened at both ends of the adjustment groove, a rotating groove is opened on one side of the through hole, and the lower end of the movable bracket is clamped on the inner side of the adjustment groove.

[0010] As an optimal technical solution of a universal fixture of a test bench of the utility model, a threaded hole is opened at the lower end of the movable bracket, and a slide plate is symmetrically fixed on the outer wall of the lower end of the movable bracket, and the slide plate is engaged with the inner side of the slide groove.

[0011] As an optimal technical solution for a universal clamp of a test bench of the utility model, the adjusting screw is located on the inner side of the adjusting groove, the adjusting screw is threadedly connected to the inner side of the threaded hole, both ends of the adjusting screw pass through through holes, one end of the adjusting screw is fixedly provided with a rotating plate, the rotating plate is located on the outer side of the adjusting groove, the other end of the adjusting screw is fixedly provided with a clamping plate, and the clamping plate is movably engaged with the inner side of the rotating groove.

[0012] As an optimal technical solution of the universal clamp of a test bench of the utility model, legs are fixedly provided at the bottom of the base.

[0013] As an optimal technical solution of a universal clamp for a test bench of the utility model, the first clamp and the second clamp are symmetrically arranged.

[0014] As a preferred technical solution of the universal clamp of a test bench of the utility model, one side wall of the movable clamp is aligned with one side wall of the fixed clamp.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] The utility model provides a base, a movable bracket, a first clamp, a fixed bracket and a second clamp, and the movable bracket is movably connected to the base. The bottom of the movable bracket is threadedly connected to an adjusting screw. When an operator performs a test on the injector, the position of the movable bracket can be adjusted by rotating the adjusting screw, so that the position of the first clamp on the movable bracket can be adjusted, thereby adjusting the spacing between the first clamp and the second clamp, and adjusting the clamping width when clamping injectors of different models.

[0017] By arranging a fixed clamp and a movable clamp on the first clamp, the movable clamp is clamped on the inner side of the adjustment frame, and a squeeze screw is threadedly connected on one side of the movable clamp. When the clamp is used, the movable clamp can be slid on the inner side of the adjustment frame to adjust the distance between the movable clamp and the fixed clamp. After adjustment, the squeeze screw is tightened so that the squeeze plate clamps the movable clamp on the inner side of the adjustment frame. At the same time, the second clamp with the same structure as the first clamp is adjusted, so as to adjust the clamping length when clamping different types of injectors.

[0018] By opening an adjustment port on the edge of the top surface of the base, the first clamp and the second clamp are located on both sides of the adjustment port. When the fuel injector is tested, the clamp can always be clamped in the middle of both sides of the fuel injector when the fuel injector is clamped by the clamp. A fuel injector with a larger volume can be appropriately moved down inside the adjustment port, thereby improving the practicality of the overall clamp and making the overall operation flexible and convenient.

[0019] In addition, by arranging a chuck assembly on the side of the movable clamping plate, the sleeve tube on the chuck assembly is plugged into the L-shaped connecting tube, a supporting spring is arranged at one end of the sleeve tube, and a rubber chuck is arranged on the other side of the sleeve tube. When clamping and fixing the injector, the rubber chuck can be clamped on the outer side of the end of the injector by moving the movable clamping plate, and the symmetrical rubber chuck can improve the stability of the injector during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0022] Figure 2 It is a partial cross-sectional view of the utility model;

[0023] Figure 3 This is a schematic diagram of the connection between the mobile bracket and the first clamp of the utility model;

[0024] Figure 4 For the utility model Figure 3 The enlarged schematic diagram of point A in the middle;

[0025] Figure 5 For the utility model Figure 3 A magnified schematic diagram of point B in the middle.

[0026] In the figure: 1. base; 11. support leg; 12. adjustment port; 13. adjustment slot; 131. slide slot; 132. through hole; 133. rotation slot; 2. movable bracket; 21. threaded hole; 22. slide plate; 3. first clamp; 31. adjustment frame; 311. clamping slot; 312. limit plate; 32. fixed clamp; 33. movable clamp; 331. limit slot; 332. threaded slot; 333. extrusion screw; 334. extrusion plate; 34. chuck assembly; 341. L-shaped connecting tube; 342. guide rod; 343. support spring; 344. sleeve tube; 345. rubber chuck; 4. adjustment screw; 41. rotating plate; 42. clamping plate; 5. fixed bracket; 6. second clamp. DETAILED DESCRIPTION

[0027] 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. Example

[0028] See also Figure 1-5 As shown, the utility model provides the following technical solutions: a universal fixture of a test bench, comprising a base 1, an adjusting port 12 is opened on the edge of the top surface of the base 1, the size of the adjusting port 12 is larger than that of a conventional fuel injector, a movable bracket 2 is clamped on one side of the top surface of the base 1, an adjusting screw 4 is threadedly connected to the lower end of the movable bracket 2, and a first fixture 3 is fixedly provided on the top of the side wall of the movable bracket 2; a supporting leg 11 is fixedly provided on the bottom of the base 1; a fixed bracket 5 is fixedly provided on the other side of the top surface of the base 1, and a second fixture 6 is fixedly provided on the top of the side wall of the fixed bracket 5, and the second fixture 6 has the same structure as the first fixture 3, and the fuel injector during the test is clamped by the two fixtures, and the middle part of the side edge of the fuel injector can be clamped by moving the fuel injector up and down through the arranged adjusting port 12, so that it is suitable for use with fuel injectors of different models.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, specifically, the first clamp 3 includes an adjusting frame 31, a fixed clamping plate 32 and a movable clamping plate 33. A slot 311 is provided on the inner side of the adjusting frame 31. A limit plate 312 is symmetrically fixed to the inner wall of the slot 311. A fixed clamping plate 32 is fixed to one end of the side wall of the adjusting frame 31. A movable clamping plate 33 is movably connected to the inner side of the adjusting frame 31. A limit groove 331 is symmetrically provided on the side wall of the movable clamping plate 33. The limit plate 312 is engaged with the limit groove 331. The movable clamping plate 33 can slide on the inner side of the adjusting frame 31. A threaded groove 332 is provided on the edge of one side wall of the movable clamping plate 33. The inner side of the threaded groove 332 is threadedly connected to an extrusion screw 333. One end of the extrusion screw 333 is fixedly provided with a fixed clamping plate 32. A squeezing plate 334 is fixed at the end, and the size of the squeezing plate 334 is larger than the height size of the limiting groove 331. By tightening the squeezing screw 333 through the squeezing plate 334, the squeezing plate 334 can be squeezed on the side wall of the adjustment frame 31 to fix the movable clamping plate 33; one side wall of the movable clamping plate 33 is aligned with one side wall of the fixed clamping plate 32; when clamping the injector, the fixed clamping plate 32 and the movable clamping plate 33 of the first clamp 3 and the second clamp 6 are used to clamp the injector. When clamping injectors of different lengths, the movable clamping plate 33 can be moved to adjust the distance between it and the fixed clamping plate 32, so as to facilitate the adjustment of the clamping length according to the injector model, and the adjustment is flexible and convenient.

[0030] Reference Figure 2 , Figure 3 and Figure 5 As shown, specifically, a chuck assembly 34 is fixedly provided on one side wall of the movable clamping plate 33, and the chuck assembly 34 includes an L-shaped connecting tube 341, a guide rod 342, a support spring 343, a sleeve tube 344 and a rubber clamp 345. One end of the L-shaped connecting tube 341 is fixed to the side wall of the movable clamping plate 33, a guide rod 342 is fixedly provided on the inner side of the L-shaped connecting tube 341, a support spring 343 is sleeved on the outer side of the guide rod 342, one end of the support spring 343 is fixed to the inner wall of the L-shaped connecting tube 341, and the other end of the support spring 343 is fixedly provided with a sleeve tube 344. One end of the guide rod 342 is inserted into The inner side of the sleeve 344 can move inside the L-shaped connecting tube 341, and can be supported by the support spring 343. One end of the sleeve 344 is movably plugged into the inner side of the L-shaped connecting tube 341. A rubber clamp 345 is fixedly provided on one side wall of the sleeve 344. The rubber clamp 345 is made of flexible material and can stably fit the end of the injector. The first clamp 3 and the second clamp 6 are symmetrically arranged. When the injector is clamped by the two clamps, the rubber clamp 345 can be stably pressed against both sides of the injector end to fix it again, thereby improving the stability of the injector during testing.

[0031] Reference Figure 1 and Figure 2As shown, specifically, an adjusting groove 13 is provided in the middle of one end of the base 1, and a slide groove 131 is symmetrically provided on the inner wall of the adjusting groove 13, through holes 132 are provided at both ends of the adjusting groove 13, and a rotation groove 133 is provided on one side of the through hole 132. The lower end of the movable bracket 2 is clamped on the inner side of the adjusting groove 13, and the movable bracket 2 can slide on the inner side of the adjusting groove 13; a threaded hole 21 is provided at the lower end of the movable bracket 2, and a slide plate 22 is symmetrically fixed on the outer wall of the lower end of the movable bracket 2, and the slide plate 22 is clamped on the inner side of the slide groove 131; the adjusting screw 4 is located in the adjusting groove 13, the adjusting screw 4 is threadedly connected to the inner side of the threaded hole 21, and the two ends of the adjusting screw 4 pass through the through hole 132. The rotating of the adjusting screw 4 can make the movable bracket 2 move. One end of the adjusting screw 4 is fixedly provided with a rotating plate 41, and the rotating plate 41 is located on the outer side of the adjusting groove 13. The other end of the adjusting screw 4 is fixedly provided with a clamping plate 42, and the clamping plate 42 is movably engaged with the inner side of the rotating groove 133. The present invention provides an adjustable movable bracket 2, so that when clamping different types of injectors, the clamping width can be adjusted, and the adjustment is flexible and convenient.

[0032] The working principle and use process of the utility model are as follows: when conducting a fuel injector test, the fuel injector is placed above the adjustment port 12, and according to the size of the fuel injector, the adjustment screw 4 is rotated to make the movable bracket 2 move toward the fixed bracket 5, so that the first clamp 3 and the second clamp 6 can clamp the fuel injector. If the length of the fuel injector is relatively long, the movable clamp 33 can be slid inside the adjustment frame 31, and the movable clamp 33 is moved to one side of the end of the fuel injector. At this time, the fixed clamp 32 clamps the rear end of the fuel injector, and the movable clamp 33 clamps the front end of the fuel injector, so that the front and rear ends of the fuel injector are clamped together, and at the same time, the rubber clamp 345 on one side of the movable clamp 33 can be pressed against the end of the fuel injector under the action of the support spring 343, so as to achieve stable clamping of the fuel injector, and the clamping range can be flexibly adjusted according to the model of the fuel injector, and the utility model is highly practical.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A universal fixture for a test bench, comprising a base (1), characterized in that: An adjustment opening (12) is provided at an edge of the top surface of the base (1); a movable bracket (2) is clamped on one side of the top surface of the base (1); an adjustment screw (4) is threadedly connected to the lower end of the movable bracket (2); a first clamp (3) is fixedly provided on the top of the side wall of the movable bracket (2); the first clamp (3) comprises an adjustment frame (31), a fixed clamp (32) and a movable clamp (33); a clamping groove (311) is provided on the inner side of the adjustment frame (31); a limit plate (312) is symmetrically fixedly provided on the inner wall of the clamping groove (311); a fixed clamp (32) is fixedly provided on one end of the side wall of the adjustment frame (31); and the movable clamp (33) is movably clamped on the inner side of the adjustment frame (31). 3), the side wall of the movable clamp (33) is symmetrically provided with a limit groove (331), the limit plate (312) is engaged with the limit groove (331), a thread groove (332) is provided on the edge of one side wall of the movable clamp (33), the inner side of the thread groove (332) is threadedly connected with an extrusion screw (333), one end of the extrusion screw (333) is fixedly provided with an extrusion plate (334), the size of the extrusion plate (334) is larger than the height size of the limit groove (331), a fixed bracket (5) is fixedly provided on the other side of the top surface of the base (1), and a second clamp (6) is fixedly provided on the top of the side wall of the fixed bracket (5), and the second clamp (6) has the same structure as the first clamp (3).

2. A universal fixture for a test bench according to claim 1, characterized in that: A chuck assembly (34) is fixedly provided on one side wall of the movable clamping plate (33), and the chuck assembly (34) comprises an L-shaped connecting tube (341), a guide rod (342), a support spring (343), a sleeve tube (344) and a rubber chuck (345), one end of the L-shaped connecting tube (341) is fixed on the side wall of the movable clamping plate (33), the guide rod (342) is fixedly provided on the inner side of the L-shaped connecting tube (341), and the outer side of the guide rod (342) is fixedly provided with a guide rod (342). A support spring (343) is sleeved thereon, one end of the support spring (343) is fixed to the inner wall of the L-shaped connecting tube (341), the other end of the support spring (343) is fixedly provided with a sleeve tube (344), one end of the guide rod (342) is plugged into the inner side of the sleeve tube (344), one end of the sleeve tube (344) is movably plugged into the inner side of the L-shaped connecting tube (341), and a rubber clamp (345) is fixedly provided on one side wall of the sleeve tube (344).

3. A universal fixture for a test bench according to claim 2, characterized in that: An adjusting groove (13) is provided in the middle of one end of the base (1), sliding grooves (131) are symmetrically provided on the inner wall of the adjusting groove (13), through holes (132) are provided at both ends of the adjusting groove (13), a rotation groove (133) is provided on one side of the through hole (132), and the lower end of the movable bracket (2) is clamped on the inner side of the adjusting groove (13).

4. A universal fixture for a test bench according to claim 3, characterized in that: A threaded hole (21) is provided at the lower end of the movable bracket (2), and a slide plate (22) is symmetrically fixedly provided on the outer wall of the lower end of the movable bracket (2), wherein the slide plate (22) is engaged with the inner side of the slide groove (131).

5. The universal fixture for a test bench according to claim 4, characterized in that: The adjusting screw (4) is located on the inner side of the adjusting groove (13), the adjusting screw (4) is threadedly connected to the inner side of the threaded hole (21), both ends of the adjusting screw (4) pass through the through holes (132), a rotating plate (41) is fixedly provided on one end of the adjusting screw (4), the rotating plate (41) is located on the outer side of the adjusting groove (13), and a clamping plate (42) is fixedly provided on the other end of the adjusting screw (4), the clamping plate (42) is movably clamped on the inner side of the rotating groove (133).

6. A universal fixture for a test bench according to claim 5, characterized in that: A supporting leg (11) is fixedly provided at the bottom of the base (1).

7. The universal fixture for a test bench according to claim 6, characterized in that: The first clamp (3) and the second clamp (6) are symmetrically arranged.

8. The universal fixture for a test bench according to claim 7, characterized in that: A side wall of the movable clamping plate (33) is aligned with a side wall of the fixed clamping plate (32).

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