Pedal type 90-degree indexing machine control valve control mechanism

Abstract

The utility model discloses a pedal type 90-degree indexing machine control valve control mechanism which comprises a support, a control assembly arranged on the top of the support and a workpiece carrier arranged on the top of the control assembly, the control assembly comprises a fixing plate fixedly arranged on the top of the support, and the top of the fixing plate is rotationally connected with an indexing disc. Indexing grooves are evenly formed in the inner side of the indexing disc, an air cylinder is movably connected to one side of the upper end of the fixing plate, and a first connecting rod corresponding to the air cylinder is movably connected to the side, away from the air cylinder, of the upper end of the fixing plate. According to the pedal type 90-degree indexing mechanical control valve control mechanism, the arranged control assembly mainly comprises a pedal type mechanical control valve, a mechanical control valve, an air cylinder, a first connecting rod, a cam follower, a second connecting rod, a bearing and a spring, efficient indexing of the indexing disc can be achieved, precision is high, the structure is simple and compact, pedal type control is achieved, and use is convenient; and the method is suitable for 90-degree and 90-degree multiple effective indexing.

Description

Technical Field

[0001] The utility model relates to the field of a machine-controlled valve control mechanism, in particular to a pedal-type 90-degree indexing machine-controlled valve control mechanism. Background Art

[0002] At present, the primary purpose of tooling plate indexing is to achieve accurate positioning and rotation of the workpiece. Through the indexing plate, the workpiece can be clamped on the chuck and rotated, indexed and positioned according to a predetermined angle to meet the precision requirements of processing or measurement. During the machining process, tooling plate indexing can ensure that the rotation angle during the machining process is accurate, thereby improving the accuracy and consistency of the machined parts. This is especially important for parts that require high-precision machining.

[0003] The existing indexing disk is often indexed by the cooperation of a machine-controlled valve and a cylinder when in use. However, the existing machine-controlled valve control mechanism has a complex structure and poor accuracy, and is generally operated by hand, which is not convenient and has poor practicality, especially for the indexing disk that needs to be rotated 90° or multiples of 90°.

[0004] Therefore, it is necessary to propose a foot-operated 90° indexing machine-controlled valve control mechanism to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a foot-operated 90° indexing machine-controlled valve control mechanism, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A foot-operated 90° indexing machine-controlled valve control mechanism, comprising a bracket, a control component arranged on the top of the bracket, and a workpiece carrier arranged on the top of the control component, wherein the control component comprises a fixed plate fixedly arranged on the top of the bracket, the top of the fixed plate is rotatably connected with a dividing plate, the inner side of the dividing plate is evenly provided with dividing grooves, one side of the upper end of the fixed plate is movably connected with a cylinder, the side of the upper end of the fixed plate away from the cylinder is movably connected with a first connecting rod corresponding to the cylinder, and one end of the first connecting rod away from the fixed plate is movably connected with the output end of the cylinder, the upper end of the first connecting rod is provided with a cam follower engaged with the dividing groove, and one side of the bracket is provided with a foot-operated machine-controlled valve for controlling the extension and retraction of the cylinder;

[0008] A machine-controlled valve for controlling the extension and retraction of the cylinder is provided on one side of the upper end of the fixed plate, and a second connecting rod corresponding to the machine-controlled valve is movably connected to one side of the upper end of the fixed plate, and a convex plate corresponding to the end of the second connecting rod away from the machine-controlled valve is fixedly provided on one side of the upper end of the fixed plate, and a spring is provided between the convex plate and the second connecting rod, and a bearing corresponding to the dividing groove is provided on the upper end of the second connecting rod.

[0009] Preferably, the workpiece carrier is fixedly arranged on the top of the dividing plate, so as to be driven to rotate by the dividing plate.

[0010] Preferably, the number of the indexing grooves is four, and the indexing grooves are arc-shaped;

[0011] The cam follower is a circle that matches the indexing groove;

[0012] The diameter of the bearing is larger than the inner diameter of the indexing groove.

[0013] Preferably, a third pin shaft is provided at both ends of the cylinder, and the two ends of the cylinder are rotatably connected to the first connecting rod and the fixed plate respectively through the third pin shaft.

[0014] Preferably, the end of the first connecting rod away from the cylinder is rotatably connected to the fixing plate through a second pin shaft;

[0015] One end of the second connecting rod close to the machine-controlled valve is rotatably connected to the fixed plate through a fourth pin shaft.

[0016] Preferably, a first pin is provided on the second connecting rod, and the bearing is provided on the first pin.

[0017] Compared with the prior art, the utility model provides a foot-operated 90° indexing machine-controlled valve control mechanism, which has the following beneficial effects:

[0018] The foot-operated 90° indexing machine-controlled valve control mechanism, through the control components mainly including a foot-operated machine-controlled valve, a machine-controlled valve, a cylinder, a first connecting rod, a cam follower, a second connecting rod, a bearing, and a spring, can achieve efficient indexing of the indexing plate, has high precision, a simple and compact structure, a certain degree of linkage, foot-operated control, and is easy to use, and is suitable for effective indexing of 90° and multiples of 90°. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the support, workpiece carrier, and control assembly of the utility model in a disassembled state;

[0021] Figure 3 It is a schematic diagram of the overall structure of the indexing plate and the fixed plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the utility model in which the indexing plate and the fixed plate are disassembled;

[0023] Figure 5 It is a structural schematic diagram of the fixing plate of the utility model.

[0024] In the figure: 1. bracket; 2. workpiece carrier; 3. foot-operated machine-controlled valve; 4. indexing plate; 5. fixed plate; 6. cylinder; 7. cam follower; 8. second connecting rod; 9. first pin; 10. bearing; 11. spring; 12. convex plate; 13. machine-controlled valve; 14. indexing groove; 15. first connecting rod; 16. second pin; 17. third pin; 18. fourth pin. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-5 As shown, a pedal-type 90° indexing machine-controlled valve control mechanism comprises a bracket 1, a control component arranged on the top of the bracket 1 and a workpiece carrier 2 arranged on the top of the control component, the control component comprises a fixed plate 5 fixedly arranged on the top of the bracket 1, the top of the fixed plate 5 is rotatably connected with a dividing plate 4, the workpiece carrier 2 is fixedly arranged on the top of the dividing plate 4, and is driven to rotate by the dividing plate 4, the inner side of the dividing plate 4 is evenly provided with dividing grooves 14, the number of dividing grooves 14 is four, and the dividing grooves 14 are arc-shaped, one side of the upper end of the fixed plate 5 is movably connected with a cylinder 6, the side of the upper end of the fixed plate 5 away from the cylinder 6 is movably connected with a first connecting rod 15 corresponding to the cylinder 6, and the end of the first connecting rod 15 away from the fixed plate 5 is movably connected to the output end of the cylinder 6, specifically, both ends of the cylinder 6 are provided with a third pin shaft 17, the two ends of the cylinder 6 are rotatably connected to the first connecting rod 15 and the fixed plate 5 respectively through the third pin shaft 17, and the end of the first connecting rod 15 away from the cylinder 6 is The second pin shaft 16 is rotatably connected to the fixed plate 5, and the upper end of the first connecting rod 15 is provided with a cam follower 7 that is engaged with the indexing groove 14. The cam follower 7 is in the shape of a circular bracket 1 that is adapted to the indexing groove 14. One side of the bracket 1 is provided with a foot-operated machine-controlled valve 3 for controlling the extension and retraction of the cylinder 6, and one side of the upper end of the fixed plate 5 is provided with a machine-controlled valve 13 for controlling the extension and retraction of the cylinder 6. One side of the upper end of the fixed plate 5 is movably connected with a second connecting rod 8 corresponding to the machine-controlled valve 13, and the second connecting rod 8 is close to the One end near the machine-controlled valve 13 is rotatably connected to the fixed plate 5 through a fourth pin shaft 18, and a convex plate 12 corresponding to the end of the second connecting rod 8 away from the machine-controlled valve 13 is fixedly provided on one side of the upper end of the fixed plate 5, and a spring 11 is provided between the convex plate 12 and the second connecting rod 8, and a bearing 10 corresponding to the dividing groove 14 is provided at the upper end of the second connecting rod 8, and a first pin shaft 9 is provided on the second connecting rod 8, and the bearing 10 is provided on the first pin shaft 9, and the diameter of the bearing 10 is larger than the inner diameter of the dividing groove 14.

[0027] It should be noted that the utility model is a foot-operated 90° indexing machine-controlled valve control mechanism. When in use:

[0028] In the initial state, the machine-controlled valve 13 supplies air, and the cylinder 6 extends to drive the first connecting rod 15, so that the cam follower 7 is stuck in the dividing groove 14. At the same time, when the machine-controlled valve 13 supplies air, the spring 11 is in a reset state, so that the spring 11 drives the second connecting rod 8 to rotate, so that the bearing 10 is stuck in the dividing groove 14, and the dividing plate 4 cannot rotate.

[0029] When the foot-operated mechanical control valve 3 is stepped on, the cylinder 6 supplies air in the reverse direction, and the cylinder 6 contracts to drive the first connecting rod 15, so that the cam follower 7 withdraws from the indexing groove 14. At this time, the indexing plate 4 can rotate. Since the diameter of the bearing 10 is larger than the inner diameter of the indexing groove 14, the limit driven by the spring 11 can be broken, so that the second connecting rod 8 rotates, and one end of the second connecting rod 8 squeezes one end of the mechanical control valve 13, so that the mechanical control valve 13 is shifted and pressure is released; when it rotates a certain angle and does not exceed 90 degrees, there are two situations:

[0030] Case 1: If the foot-operated machine-controlled valve 3 is released at this time, the cylinder 6 cannot be fully extended because the cam follower 7 cannot enter the indexing groove 14. The machine-controlled valve 13 keeps the pressure relief, and the indexing plate 4 can rotate until it reaches 90 degrees. The bearing 10 can enter and the spring 11 is reset. At this time, the machine-controlled valve 13 returns to supply air, the cylinder 6 can be fully extended, and the indexing plate 4 is stuck. At this time, it is 90 degrees.

[0031] Case 2: At this time, continue to step on the foot-operated mechanical control valve 3: When it rotates to 90 degrees, the spring 11 resets and drives the second connecting rod 8, so that the bearing 10 is stuck in the indexing groove 14. The mechanical control valve 13 returns to supply air. Since the cylinder 6 has pressure relief at the retracted position but no pressure relief at the extended position, the cylinder 6 will remain retracted. At this time, the indexing plate 4 can be rotated, and the limit driven by the spring 11 can be opened.

[0032] Finally, continue to rotate the indexing plate 4, and two results will be produced depending on whether the foot-operated machine-controlled valve 3 is stepped on:

[0033] (1) No step: Indexing plate 4 is stuck

[0034] (2) Press down: the indexing plate 4 rotates, and the subsequent situation is the same as that listed in situation 2.

[0035] The above process can be repeated to divide into 180 degrees, 270 degrees and 360 degrees.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pedal-operated 90° indexing machine-controlled valve control mechanism, comprising a bracket (1), a control assembly arranged on the top of the bracket (1), and a workpiece carrier (2) arranged on the top of the control assembly, characterized in that: The control assembly comprises a fixed plate (5) fixedly arranged on the top of the bracket (1), the top of the fixed plate (5) is rotatably connected to a dividing plate (4), the inner side of the dividing plate (4) is evenly provided with dividing grooves (14), one side of the upper end of the fixed plate (5) is movably connected to a cylinder (6), the side of the upper end of the fixed plate (5) away from the cylinder (6) is movably connected to a first connecting rod (15) corresponding to the cylinder (6), and the end of the first connecting rod (15) away from the fixed plate (5) is movably connected to the output end of the cylinder (6), and the upper end of the first connecting rod (15) is provided with a cam follower (7) engaged with the dividing groove (14), and one side of the bracket (1) is provided with a foot-operated machine-controlled valve (3) for controlling the extension and retraction of the cylinder (6); A machine-controlled valve (13) for controlling the extension and retraction of the cylinder (6) is arranged on one side of the upper end of the fixed plate (5); a second connecting rod (8) corresponding to the machine-controlled valve (13) is movably connected to one side of the upper end of the fixed plate (5); a convex plate (12) corresponding to an end of the second connecting rod (8) away from the machine-controlled valve (13) is fixedly arranged on one side of the upper end of the fixed plate (5); a spring (11) is arranged between the convex plate (12) and the second connecting rod (8); and a bearing (10) corresponding to the dividing groove (14) is arranged on the upper end of the second connecting rod (8).

2. The foot-operated 90° indexing machine-controlled valve control mechanism according to claim 1, characterized in that: The workpiece carrier (2) is fixedly arranged on the top of the dividing plate (4), and is driven to rotate by the dividing plate (4).

3. The foot-operated 90° indexing machine-controlled valve control mechanism according to claim 1, characterized in that: The number of the indexing grooves (14) is four, and the indexing grooves (14) are arc-shaped; The cam follower (7) is circular and matches the indexing groove (14); The diameter of the bearing (10) is greater than the inner diameter of the indexing groove (14).

4. The foot-operated 90° indexing machine-controlled valve control mechanism according to claim 1, characterized in that: Both ends of the cylinder (6) are provided with a third pin shaft (17), and the two ends of the cylinder (6) are rotatably connected to the first connecting rod (15) and the fixing plate (5) respectively through the third pin shaft (17).

5. The foot-operated 90° indexing machine-controlled valve control mechanism according to claim 1, characterized in that: One end of the first connecting rod (15) away from the cylinder (6) is rotatably connected to the fixing plate (5) via a second pin shaft (16); One end of the second connecting rod (8) close to the machine-controlled valve (13) is rotatably connected to the fixed plate (5) via a fourth pin shaft (18).

6. The foot-operated 90° indexing machine-controlled valve control mechanism according to claim 1, characterized in that: The second connecting rod (8) is provided with a first pin shaft (9), and the bearing (10) is provided on the first pin shaft (9).

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