Shifting fork comprehensive testing fixture

Abstract

The utility model provides a shifting fork comprehensive testing fixture, and belongs to the technical field of machinery. The problem that an existing shifting fork comprehensive testing fixture is inaccurate in stepping point and inaccurate in detection is solved. The shifting fork comprehensive detection tool comprises a bottom plate and a side plate fixedly connected to the bottom plate, a horizontally-arranged mandrel is vertically and fixedly connected to the side plate, a reference hole is formed in the side wall of the mandrel in a penetrating mode, a positioning pin is inserted into the reference hole, a connecting base is fixedly connected to the side plate, a detection block is arranged on the connecting base in a penetrating mode, and the outer end of the detection block is a detection part used for detecting a shifting fork. A horizontally-arranged positioning mandrel is perpendicularly and fixedly connected to the side plate and located on the lower side of the mandrel, a rotary table capable of rotating is axially and fixedly connected to the upper end of the positioning mandrel, reference grooves allowing fork feet of the shifting fork to be embedded are formed in the two sides of the rotary table, the two side walls of each reference groove are reference surfaces, and a handle capable of driving the rotary table to rotate is fixedly connected to the outer end face of the rotary table. The shifting fork comprehensive testing fixture has the advantages of being convenient and reliable in detection, high in detection efficiency and simple in structure.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a comprehensive inspection tool, particularly a shift fork comprehensive inspection tool. Background Technology

[0002] Shift fork parts are complex, irregularly shaped components with intricate spatial structures. After the blank is formed, only the usable area is machined, resulting in a large proportion of the blank surface and a small machined area. This leads to difficulties in finished product inspection and positioning, and poor inspection stability.

[0003] The existing technical solution uses an auxiliary mandrel and a coordinate measuring machine (CMM). The part is first fixed on the auxiliary mandrel before CMM measurement. However, the large space required fork leads to a long measurement cycle and low efficiency. Furthermore, when constructing the coordinate system, the CMM is prone to inaccurate repeated point placement and coordinate system deviations, resulting in amplified errors and ultimately inaccurate and inefficient measurements. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a convenient, reliable, efficient, and simple integrated inspection tool for shift forks.

[0005] The objective of this utility model can be achieved through the following technical solution: A comprehensive inspection tool for shift forks includes a base plate and a side plate fixed to the base plate. A horizontally arranged spindle is vertically fixed to the side plate. A reference hole is provided through the side wall of the spindle for inserting a positioning pin. The tool is characterized in that a connecting seat is fixed to the side plate, and a detection block is provided through the connecting seat. The outer end of the detection block is a detection part for detecting shift forks. A horizontally arranged positioning spindle is vertically fixed to the side plate. The positioning spindle is located below the spindle. A rotatable turntable is axially fixed to the upper end of the positioning spindle. The turntable has reference grooves on both sides for the fork feet of the shift forks to be inserted. The two side walls of the reference grooves are reference surfaces. A handle that can drive the turntable to rotate is fixed to the outer end face of the turntable.

[0006] The shift fork includes a shift fork head and a shift fork foot. The shift fork head has a through connecting hole and a small shift fork hole, which communicates with the connecting hole. The side of the shift fork head also has a protrusion. During inspection, the head of the shift fork to be inspected is fitted onto the mandrel, so that the shift fork foot is embedded in the reference groove. Then, the positioning pin is inserted into the small shift fork hole and the reference hole of the mandrel. By rotating the turntable, it is checked whether the shift fork foot can rotate smoothly in the reference groove, which is used to check whether the spatial distance and perpendicularity of the shift fork foot meet the requirements. Then, the detection block is inserted into the connecting seat and the detection part of the detection block abuts against the protrusion of the shift fork head to check whether the protrusion of the shift fork head meets the requirements. Using this integrated inspection tool, there are advantages such as convenient and reliable inspection, high inspection efficiency, and simple structure.

[0007] In the aforementioned integrated inspection fixture for shift forks, the front end of the turntable has a notch that communicates with the reference groove, allowing the shift fork feet to pass through. The notch at the front end of the turntable facilitates operation and improves inspection efficiency.

[0008] In the aforementioned integrated fork inspection fixture, the connecting seat has a square-shaped insertion hole in the middle. The detection block matches the insertion hole and passes through it. The square insertion hole on the connecting seat provides good positioning and accurate positioning of the detection block, thus improving inspection accuracy.

[0009] In the aforementioned integrated fork inspection fixture, the turntable includes a turntable body, the outer end of which has a shoulder, and a cover is fixedly connected to the outer end of the turntable body. The cover and the turntable body form the reference groove. The turntable formed by the cover and the turntable body has the advantages of simple structure and convenient manufacturing.

[0010] In the aforementioned integrated fork fixture, one end of the locating pin is a reference portion inserted into the reference hole, and the other end of the locating pin is a handle portion. This configuration offers the advantages of convenient operation and simple structure.

[0011] In the aforementioned integrated fork fixture, the inner end of the positioning mandrel is fixedly connected to the side plate by screws, the outer end of the positioning mandrel has a shoulder, the inner end face of the turntable abuts against the shoulder, and a washer is fixedly connected to the outer end of the positioning mandrel, the inner end face of the washer abutting against the outer end face of the turntable. This configuration provides the advantages of good positioning effect and simple structure for the turntable.

[0012] In the aforementioned integrated fork inspection fixture, a bearing is provided between the turntable and the positioning spindle. By providing the bearing, the turntable can rotate relative to the positioning spindle, thus improving operational reliability.

[0013] Compared with existing technologies, this integrated inspection tool for shift forks has the following advantages:

[0014] 1. Insert the positioning pin into the small hole of the shift fork and the reference hole of the spindle. By rotating the turntable, check whether the shift fork foot can rotate smoothly in the reference groove. This is used to check whether the spatial distance and perpendicularity of the shift fork foot meet the requirements. Then, insert the detection block into the connecting seat and make the detection part of the detection block abut against the protrusion of the shift fork head to check whether the protrusion of the shift fork head meets the requirements. Using this comprehensive inspection tool has the advantages of convenient and reliable detection, high detection efficiency and simple structure.

[0015] 2. The front end of the turntable is provided with a notch for the fork feet to pass through, which makes operation simple and convenient and improves detection efficiency;

[0016] 3. The connector is equipped with a square insertion hole, which has a good positioning effect and accurately positions the detection block, thus improving the detection accuracy;

[0017] 4. The turntable includes a turntable body, the outer end of which has a shoulder, and a cover is fixedly connected to the outer end of the turntable body. The cover and the turntable body form a reference groove, which has the advantages of simple structure and convenient manufacturing. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a type of integrated inspection tool fork.

[0019] Figure 2 This is a front view schematic diagram of a type of shift fork integrated inspection tool.

[0020] Figure 3 yes Figure 2 A schematic diagram of the AA section.

[0021] Figure 4 yes Figure 2 BB cross-sectional diagram.

[0022] Figure 5 This is a schematic diagram of the operation of a type of shift fork integrated inspection tool.

[0023] Figure 6 This is a 3D schematic diagram of the shift fork.

[0024] Figure 7 This is a partial sectional view of another type of this inspection tool.

[0025] In the diagram, 1 is the base plate; 2 is the side plate; 3 is the spindle; 3a is the reference hole; 4 is the positioning pin; 4a is the reference part; 4b is the handle part; 5 is the connecting seat; 5a is the insertion hole; 6 is the detection block; 6a is the detection part; 7 is the positioning spindle; 7a is the shoulder; 8 is the turntable; 8a is the reference groove; 8b is the reference surface; 8c is the turntable body; 8d is the shoulder; 8e is the cover; 8f is the notch; 9 is the handle; 10 is the gasket; 11 is the bearing; 12 is the shift fork; 12a is the shift fork head; 12b is the shift fork foot; 12c is the connecting hole; 12d is the shift fork small hole; and 12e is the protrusion. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figures 1 to 6 As shown, a comprehensive inspection tool for shift forks includes a base plate 1 and a side plate 2 vertically fixed to the base plate 1. A horizontally arranged spindle 3 is vertically fixed to the side plate 2. A reference hole 3a is provided through the side wall of the spindle 3 for inserting a positioning pin 4. A connecting seat 5 is fixed to the side plate 2. A detection block 6 is provided through the connecting seat 5. The outer end of the detection block 6 is a detection part 6a for detecting shift forks 12. A horizontally arranged positioning spindle 7 is vertically fixed to the side plate 2. The positioning spindle 7 is located below the spindle 3. A rotatable turntable 8 is axially fixed to the upper end of the positioning spindle 7. The turntable 8 has reference grooves 8a on both sides for the fork feet of shift forks 12 to be inserted. The two side walls of the reference grooves 8a are reference surfaces 8b. A handle 9 that can drive the turntable 8 to rotate is fixed to the outer end face of the turntable 8.

[0028] The turntable 8 includes a turntable body 8c, the outer end of which has a shoulder 8d. A cover 8e is fixedly connected to the outer end of the turntable body 8c, and the cover 8e and the turntable body 8c form a reference groove 8a. This design has the advantages of simple structure and easy manufacturing. The front end of the turntable 8 has a notch 8f, which is connected to the reference groove 8a. The notch 8f allows the fork 12 to pass through, making operation simple and convenient and improving detection efficiency.

[0029] The middle part of the connector 5 has a square-shaped insertion hole 5a. The detection block 6 matches the insertion hole 5a and passes through the insertion hole 5a, which has a good positioning effect and accurately positions the detection block 6, thus improving the detection accuracy.

[0030] One end of the positioning pin 4 is the reference part 4a that is inserted into the reference hole 3a, and the other end of the positioning pin 4 is the handle part 4b, which has the advantages of convenient operation and simple structure.

[0031] The inner end of the positioning spindle 7 is fixed to the side plate 2 by screws. The outer end of the positioning spindle 7 is provided with a shoulder 7a. The inner end face of the turntable 8 abuts against the shoulder 7a. The outer end of the positioning spindle 7 is fixed with a washer 10. The inner end face of the washer 10 abuts against the outer end face of the turntable 8. It has the advantages of good positioning effect and simple structure for the turntable 8.

[0032] The shift fork 12 includes a shift fork head 12a and a shift fork foot 12b. The shift fork head 12a is provided with a through connecting hole 12c and a shift fork small hole 12d. The shift fork small hole 12d is connected to the connecting hole 12c. The side of the shift fork head 12a is also provided with a protrusion 12e. During inspection, the head of the shift fork 12 to be inspected is fitted onto the spindle 3, so that the shift fork foot 12b directly passes through the notch 8f and is embedded into the reference groove 8a. Then, the positioning pin 4 is inserted into the shift fork hole 12d and the reference hole 3a of the spindle 3. By rotating the turntable 8, it is checked whether the shift fork foot 12b can rotate smoothly in the reference groove 8a, which is used to check whether the spatial distance and perpendicularity of the shift fork foot 12b meet the requirements. Then, the detection block 6 is inserted into the connecting seat 5 and the detection part 6a of the detection block 6 abuts against the protrusion 12e of the shift fork head 12a to check whether the protrusion 12e of the shift fork head 12a meets the requirements. Using this comprehensive inspection tool, there are advantages of convenient and reliable inspection, high inspection efficiency and simple structure.

[0033] As another way, such as Figure 7 As shown, a bearing 11 is provided between the turntable 8 and the positioning spindle 7, which facilitates the rotation of the turntable 8 relative to the positioning spindle 7 and improves the reliability of the operation.

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0035] Although this document frequently uses terms such as base plate 1, side plate 2, spindle 3, reference hole 3a, positioning pin 4, reference part 4a, handle part 4b, connecting seat 5, insertion hole 5a, detection block 6, detection part 6a, positioning spindle 7, shoulder 7a, turntable 8, reference groove 8a, reference surface 8b, turntable body 8c, shoulder 8d, cover 8e, notch 8f, handle 9, gasket 10, bearing 11, shift fork 12, shift fork head 12a, shift fork foot 12b, connecting hole 12c, shift fork small hole 12d, and protrusion 12e, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A comprehensive inspection tool for a shift fork, comprising a base plate (1) and a side plate (2) vertically fixed to the base plate (1), wherein a horizontally arranged mandrel (3) is vertically fixed to the side plate (2), and a reference hole (3a) is provided through the side wall of the mandrel (3), the reference hole (3a) being used to insert a positioning pin (4), characterized in that, A connecting seat (5) is fixedly connected to the side plate (2), and a detection block (6) is inserted through the connecting seat (5). The outer end of the detection block (6) is a detection part (6a) for detecting the shift fork. A horizontally arranged positioning spindle (7) is vertically fixedly connected to the side plate (2). The positioning spindle (7) is located below the spindle (3). A rotatable turntable (8) is axially fixedly connected to the upper end of the positioning spindle (7). The turntable (8) has reference grooves (8a) on both sides for the shift fork feet to be inserted. The two side walls of the reference grooves (8a) are reference surfaces. A handle (9) that can drive the turntable (8) to rotate is fixedly connected to the outer end face of the turntable (8).

2. The integrated inspection fixture for shift forks according to claim 1, characterized in that, The turntable (8) has a notch (8f) at its front end and the notch (8f) is connected to the reference groove (8a). The notch (8f) allows the fork foot of the shift fork to pass through.

3. The integrated inspection fixture for shift forks according to claim 1, characterized in that, The connector (5) has a square-shaped insertion hole (5a) in the middle, and the detection block (6) matches the insertion hole (5a) and passes through the insertion hole (5a).

4. A comprehensive inspection fixture for shift forks according to claim 1, 2, or 3, characterized in that, The turntable (8) includes a turntable body (8c), the outer end of which has a shoulder (8d), and a cover (8e) is fixedly connected to the outer end of the turntable body (8c). The cover (8e) and the turntable body (8c) form the reference groove (8a).

5. A comprehensive inspection fixture for shift forks according to claim 1, 2, or 3, characterized in that, One end of the positioning pin (4) is a reference part (4a) that is inserted into the reference hole (3a), and the other end of the positioning pin (4) is a handle part (4b).

6. A comprehensive inspection fixture for shift forks according to claim 1, 2, or 3, characterized in that, The inner end of the positioning mandrel (7) is fixedly connected to the side plate (2) by screws. The outer end of the positioning mandrel (7) is provided with a shoulder (7a). The inner end face of the turntable (8) abuts against the shoulder (7a). The outer end of the positioning mandrel (7) is fixedly connected with a washer (10). The inner end face of the washer (10) abuts against the outer end face of the turntable (8).

7. A comprehensive inspection fixture for shift forks according to claim 1, 2, or 3, characterized in that, A bearing (11) is provided between the turntable (8) and the positioning spindle (7).

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