Cam transmission resistance measuring device

Abstract

The utility model provides a cam transmission resistance measuring device which comprises a bottom plate and a vertical plate detachably connected with the bottom plate, the vertical plate is perpendicular to the bottom plate, the bottom plate and the vertical plate are provided with grooves, the grooves are detachably connected with a guide rail and a sliding block which are matched with the grooves, the upper end of the bottom plate is provided with an inclined block and a bearing installation block which are detachably connected with the sliding block, and the bearing installation block is connected with the inclined block. A bearing is arranged on the vertical end face of the inclined block, a rotating shaft is arranged on the bearing mounting block and sleeved with a cam, a second synchronous wheel and a second connecting plate, the second synchronous wheel is in transmission connection with a first synchronous wheel through a synchronous belt, the lower end of the first synchronous wheel is connected with a driving motor, and the cam is tangent to the bearing on the inclined block. The upper end of the sliding block connecting plate is connected with the probe fixing plate through the adapter plate, the lower end of the sliding block connecting plate is further provided with double bearings, the double bearings are tangent to the upper end and the inclined face of the inclined block, and compared with a common air cylinder jacking mechanism, the precision is higher, the stability is good, the influence of the air pressure is avoided, the probe is convenient to replace, and adjustment, installation and replacement are convenient and fast.

Description

Technical Field

[0001] The present application relates to the field of resistance measuring devices, and in particular to a cam transmission resistance measuring device. Background Art

[0002] The side push mechanism is one of the mechanisms widely used in the automation industry. Some automation equipment needs to measure and correct the resistance value of specific products. Ordinary structures generally use other mechanisms such as slide cylinders or modules to complete the action. Some products use multiple products connected to the material strip for multi-channel measurement. For example: shunt chip resistor material strip, etc. When measuring the resistance of these specific products or materials, it is necessary to consider the problem of continuous stability during measurement. For the measurement devices of this part of products, it is worth proposing improved technical solutions. Utility Model Content

[0003] In order to solve the above-mentioned technical shortcomings existing in the prior art, the utility model provides an improved technical solution, a cam transmission resistance measuring device, comprising a base plate and a vertical plate detachably connected to the base plate, the vertical plate being perpendicular to the base plate, the base plate and the vertical plate being provided with grooves, the grooves being detachably connected with guide rails and sliders adapted thereto, the upper end of the base plate being provided with an inclined block and a bearing mounting block detachably connected to the slider, a bearing being provided on the vertical end face of the inclined block, a rotating shaft being provided on the bearing mounting block, the rotating shaft being sleeved with a cam, a second synchronous wheel, and a second connecting plate, the second synchronous wheel being connected to a first synchronous wheel through a synchronous belt, a lower end of the synchronous wheel being connected to a driving motor, the cam being tangent to the bearing on the inclined block, the vertical plate being provided with a slider connecting plate, the upper end of the slider connecting plate being connected to a probe fixing plate through an adapter plate, the lower end of the slider connecting plate being further provided with a double bearing, the double bearing being tangent to the upper end and the inclined surface of the inclined block.

[0004] Furthermore, the cam is provided with at least two dead points, which are used for the cam and the bearings on the inclined block to stop when they are tangent to the dead points.

[0005] Furthermore, an adjustment base plate is provided on one end surface of the bearing mounting block, and a micrometer knob is installed on the adjustment base plate to adjust the position of the cam.

[0006] Furthermore, the upper end of the synchronous wheel 1 is detachably connected to the motor mounting plate and the coaxial fixing block, the coaxial fixing block is connected to the connecting plate 1 through an extension shaft, and the connecting plate 1 and the connecting plate 2 are fixedly connected by screws. This structure enables the synchronous belt to run in parallel with tension, protects the motor shaft and the rotating shaft on the cam, and reduces lateral force.

[0007] Furthermore, the slider connecting plate and the slider Z-axis move up and down, and the upper and lower edges of the slider connecting plate are provided with limit screws to prevent the slider from sliding out.

[0008] Furthermore, the probes are detachably mounted on the probe cover plate, so that the probe cover is pressed to remain upright and will not pop out, and a conductive wire is welded at the lower end of each probe to connect with the resistance meter.

[0009] Furthermore, a tension spring is provided on each side between the reinforcing plate and the slider connecting plate screws, one end of the tension spring is connected to the lower end screw of the reinforcing plate, and the other end is connected to the slider connecting plate screw, which is used to assist the slider connecting plate in resetting.

[0010] Furthermore, the slope angle of the inclined block is 35 degrees, and the eccentric distance of the cam is 60 mm.

[0011] Compared with the prior art, the advantages of this application are:

[0012] The cam transmission resistance measuring device of the utility model arranges guide rails and sliders on the bottom plate and the vertical plate, and arranges a bearing mounting block above one end of the bottom plate to connect the rotating shaft and the cam. The cam is driven by a driving motor to be tangent to the outer circle of the bearing mounted on the inclined block, pushing the inclined block to slide toward the vertical plate, and at the same time a slider connecting plate is arranged on the vertical plate to drive the probe sleeve plate to move up and down to measure the resistance of the product. The device has higher accuracy, better stability, is not affected by the air pressure, and is convenient to replace the probe. It can effectively solve the problem of space limitation of the measuring mechanism due to the small space under the turntable, is convenient and quick to adjust, install and replace, has market prospects, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of this application;

[0014] Figure 2 It is a side structural schematic diagram of this application;

[0015] Figure 3 This is a schematic diagram of the Z-axis jacking state structure of the present application;

[0016] Figure 4 This is a schematic diagram of the structure in the Z-axis retracted state of the present application.

[0017] Description of the numbers in the figure:

[0018] Base plate 1, bearing mounting block 2, adjusting base plate 21, micrometer knob 22, rotating shaft 23, cam 24, synchronous wheel 25, synchronous belt 26, motor mounting plate 3, drive motor 31, coaxial fixing block 32, extension shaft 33, synchronous wheel 1 34, connecting plate 1 35, connecting plate 2 36, slider 4, inclined block 41, bearing 42, vertical plate 5, slider connecting plate 51, slider connecting plate screw 52, ​​adapter plate 53, probe fixing plate 54, probe sleeve plate 55, probe 56, double bearing 57, limit screw 58, reinforcement plate 6, tension spring 61. DETAILED DESCRIPTION

[0019] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0020] Embodiment 1:

[0021] The utility model provides a cam transmission resistance measurement device, please refer to Figure 1-2 , including a bottom plate 1 connected to the machine and a vertical plate 5 connected to the bottom plate 1 with screws, the vertical plate 5 is perpendicular to one end of the bottom plate 1, and reinforcing plates 6 are arranged on both sides between the bottom plate 1 and the vertical plate 5 to ensure the stability of the device structure.

[0022] A groove is provided on one side of the upper end of the base plate 1, and a guide rail and a slider 4 adapted thereto are provided on the groove. An inclined block 41 is detachably connected to the upper end of the slider 4, and a bearing 42 is provided on the vertical end face of the inclined block 41. The angle of the inclined block 41 is 35 degrees. During operation, the bearing 42 on the inclined block 41 is tangent to the cam 24; a bearing mounting block 2 is provided on the other side, and the bearing mounting block 2 is fixedly connected to the base plate 1 with screws. A rotating shaft 23 is provided on the bearing mounting block 2, and a cam 24, a synchronous wheel 26, and a connecting plate 26 are detachably sleeved on the rotating shaft 23 in sequence. The eccentricity of the cam 24 is set to 60 mm, and at least two dead points are provided on the cam 24, which can be used to stop when the cam 24 and the bearing 42 on the inclined block 41 are tangent to the dead point. The position pressure angle of the dead point is 90°, that is, the transmission angle is 0°, and the tangential force is 0, which is the limit position of the mechanism. At this time, the probe 56 is located in the measurement position for multi-channel data measurement. After completion, the cam 24 rotates to the next dead point, and the probe 56 descends and resets. The material processing of the cam 24 and the inclined block 41 workpieces requires a heat treatment process to make the workpieces wear-resistant; an adjustment base plate 21 is provided on one end surface of the bearing mounting block 2, and a micrometer knob 22 is installed on the adjustment base plate 21. The knob screw hole is a long hole, and the position of the cam 24 can be adjusted; a synchronous wheel 25 is provided above the cam 24, and the synchronous wheel 25 is connected to the synchronous wheel 1 34 through a synchronous belt 26. The lower end of the synchronous wheel 1 34 is connected to the drive motor 31, and the upper end is detachably connected to the motor mounting plate 3 and the coaxial fixing block 32. The coaxial fixing block 32 is connected to the connecting plate 1 35 through an extension shaft 33. The connecting plate 1 35 and the connecting plate 2 36 are fixedly connected by screws. This structure enables the synchronous belt 26 to run in parallel with tension, protects the motor shaft and the rotating shaft 23 on the cam 24, and reduces lateral force.

[0023] A groove is provided in the middle of the vertical plate 5, and a guide rail and a slider adapted thereto that can move up and down in the Z axis are sleeved on the groove. A slider connecting plate 51 is provided on the slider, and limit screws 58 are provided at the diagonals of the upper and lower edges of the slider connecting plate 51 to prevent the slider from sliding out of the vertical plate 5. The slider has a vertical stroke of 30 mm. A probe fixing plate 54 is installed on the upper end of the slider connecting plate 51 through an adapter plate 53, and a probe cover plate 55 is installed on the probe fixing plate 54. The probe 56 is detachably installed on the probe cover plate 55, so that the probe 56 is pressed to keep it upright. and will not pop out. A conductive wire is welded at the lower end of each probe 56 to connect with the resistor meter. A tension spring 61 is provided on each side between the reinforcing plate 6 and the slider connecting plate screw 52. One end of the tension spring 61 is connected to the lower end screw of the reinforcing plate 6, and the other end is connected to the slider connecting plate screw 52, ​​which is used to assist the slider connecting plate 51 to return to the starting position. A double bearing 57 is also provided at the lower end of the slider connecting plate 51. The double bearing 57 is fixedly connected to the slider connecting plate 51 through a pin shaft, and the double bearing 57 is tangent to the upper end and the inclined surface of the inclined block 41 on the bottom plate 1.

[0024] like Figure 3-4 As shown, when used in conjunction with the divider turntable, the drive motor 31 drives the synchronous wheel 1 34 and the synchronous wheel 25 connected to the synchronous wheel 1 34 by the synchronous belt 26, driving the cam 24 that is sleeved with the synchronous wheel 25 through the rotating shaft 23 to rotate. At this time, the bearing 42 on the inclined block 41 tangent to the cam 24 drives the slider on the inclined block 41 to slide toward the vertical plate 5, and the double bearing 57 drives the slider connecting plate 51 to slide upward along the Z axis along the inclined surface on the inclined block 41. When tangent to the first dead point of the cam 41, the double bearing 57 on the slider connecting plate 51 reaches the top of the inclined block, and the probe 56 reaches the detection position to measure the product workpiece. After the measurement is completed, the cam 24 continues to rotate and reaches the next dead point. At this time, the inclined block 41 returns to the starting position, and the slider connecting plate 51 also slides down to the starting position along the Z axis.

[0025] The cam transmission resistance measuring device of the utility model is provided with guide rails and sliders on the bottom plate 1 and the vertical plate 5, and a bearing mounting block 2 is provided above one end of the bottom plate 1 to connect the rotating shaft 23 and the cam 24. The cam 24 is driven by a driving motor 31 to be tangent to the outer circle of the bearing 42 installed on the inclined block 41 above the slider, and pushes the inclined block 41 to slide toward the vertical plate 5. At the same time, a slider connecting plate 51 is provided on the vertical plate 5 to drive the multi-channel probe mechanism to move up and down to achieve the resistance measurement of the product. Compared with the ordinary cylinder top mechanism, the utility model has higher accuracy, better stability, is not affected by the air pressure, and is convenient to replace the probe. It can effectively solve the problem of the space limitation of the measuring mechanism caused by the small space under the turntable. It is convenient and quick to adjust, install and replace. It has market prospects and is suitable for promotion and application.

[0026] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A cam transmission resistance measuring device, comprising a base plate (1) and a vertical plate (5) detachably connected to the base plate (1), the vertical plate (5) being perpendicular to the base plate (1), characterized in that: The bottom plate (1) and the vertical plate (5) are provided with grooves, and the grooves are detachably connected with guide rails and sliders adapted thereto. The upper end of the bottom plate (1) is provided with an inclined block (41) and a bearing mounting block (2) detachably connected to the slider (4). A bearing (42) is provided on the vertical end surface of the inclined block (41). A rotating shaft (23) is provided on the bearing mounting block (2). The rotating shaft is sleeved with a cam (24), a second synchronous wheel (25), and a second connecting plate (36). The second synchronous wheel (25) is connected to the synchronous belt (2 6) is connected to the synchronous wheel 1 (34) in driving connection, the lower end of the synchronous wheel 1 (34) is connected to the driving motor (31), the cam (24) is tangent to the bearing (42) on the inclined block (41), the vertical plate (5) is provided with a slider connecting plate (51), the upper end of the slider connecting plate (51) is connected to the probe fixing plate (54) through an adapter plate (53), and the lower end of the slider connecting plate (51) is also provided with a double bearing (57), and the double bearing (57) is tangent to the upper end and the inclined surface of the inclined block (41).

2. The cam transmission resistance measuring device according to claim 1, characterized in that: The cam (24) is provided with a dead point, which is used for the cam (24) and the bearing (42) on the inclined block (41) to stop when they are tangent to the dead point.

3. The cam transmission resistance measuring device according to claim 1, characterized in that: An adjustment base plate (21) is provided on one end surface of the bearing mounting block (2), and a micrometer knob (22) is installed on the adjustment base plate (21) to adjust the position of the cam (24).

4. The cam transmission resistance measuring device according to claim 1, characterized in that: The upper end of the synchronous wheel 1 (34) is detachably connected to the motor mounting plate (3) and the coaxial fixing block (32); the coaxial fixing block (32) is connected to the connecting plate 1 (35) through an extension shaft (33); the connecting plate 1 (35) and the connecting plate 2 (36) are fixedly connected by screws. This structure enables the synchronous belt (26) to run in parallel and tighten, protects the motor shaft and the rotating shaft (23) on the cam (24), and reduces lateral force.

5. The cam transmission resistance measuring device according to claim 1, characterized in that: The slider connecting plate (51) and the slider move up and down in the Z-axis direction. The upper and lower edges of the slider connecting plate (51) are provided with limit screws (58) to prevent the slider from sliding out.

6. The cam transmission resistance measuring device according to claim 1, characterized in that: The probe (56) is detachably mounted on the probe sleeve plate (55) so that the probe (56) is sleeved and kept upright and will not pop out. A conductive wire is welded at the lower end of each probe (56) to connect with the resistor.

7. The cam transmission resistance measuring device according to claim 1, characterized in that: A tension spring (61) is provided on each side between the reinforcing plate (6) and the slider connecting plate screw (52), one end of the tension spring (61) is connected to the lower end screw of the reinforcing plate (6), and the other end is connected to the slider connecting plate screw (52), and is used to assist the slider connecting plate (51) in resetting.

8. The cam transmission resistance measuring device according to claim 2, characterized in that: The inclined surface angle of the inclined block (41) is 35 degrees, and the eccentric distance of the cam (24) is 60 mm.

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