Camshaft self-centering clamp

Abstract

The utility model discloses a camshaft self-centering clamp, which comprises a bottom plate, a first supporting plate, a second supporting plate, a pressing block and a clamping jaw assembly, the first supporting plate, the second supporting plate and the clamping jaw assembly are all arranged on the bottom plate, the first supporting plate and the second supporting plate are arranged in a straight line, and the clamping jaw assembly is arranged on one side of the second supporting plate. The pressing block is arranged on the first supporting plate; the cam shaft machining device can adapt to machining of various different types of cam shafts.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures, in particular to a camshaft self-centering fixture. Background Art

[0002] The camshaft is a widely used mechanical component with a threaded hole at its center. Currently, it is usually positioned using a V-block, compressed with a cylinder, and then drilled using a drilling machine.

[0003] General fixtures are only used to clamp camshafts of corresponding models. When the camshaft model changes, the fixture cannot be used universally, which limits the use of the fixture and affects factory production efficiency. Utility Model Content

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a camshaft self-centering fixture.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a camshaft self-centering fixture, including a base plate, a first support plate, a second support plate, a pressure block and a clamping jaw assembly, the first support plate, the second support plate and the clamping jaw assembly are all arranged on the base plate, the first support plate and the second support plate are arranged in a straight line, the clamping jaw assembly is arranged on one side of the second support plate, and the pressure block is arranged on the first support plate.

[0007] Furthermore, a first sliding block is provided on the first supporting plate, and a first sliding groove for the first sliding block to move is provided on the bottom plate.

[0008] Furthermore, the clamping jaw assembly includes a mounting base, a first movable block, a second movable block, a first clamping jaw and a second clamping jaw. The mounting base is provided with a first track and a second track. The first movable block is located in the first track, and the second movable block is located in the second track. The first clamping jaw is provided on the first movable block, and the second clamping jaw is provided on the second movable block.

[0009] Furthermore, a first movable groove is provided on the side wall of the first track, a second movable groove is provided on the side wall of the second track, a first transmission plate is provided on the first movable block, and a second transmission plate is provided on the second movable block. The first transmission plate is in the first movable groove, and the second transmission plate is in the second movable groove. A transmission wheel is provided on the mounting seat for transmission cooperation with the first transmission plate and the second transmission plate.

[0010] Furthermore, the mounting seat is provided with a transmission cavity communicating with the first movable groove and the second movable groove, the transmission wheel is arranged in the transmission cavity, the side wall of the transmission cavity is provided with a first through cavity, the transmission wheel is provided with a transmission shaft, and the transmission shaft extends from the first through cavity.

[0011] Furthermore, a third movable groove is provided on the transmission shaft, a movable rod is passed through the third movable groove, a first connecting rod is provided on the movable rod, a fourth movable groove for movement of the first connecting rod is provided on the side wall of the third movable groove, a movable ring is provided on the first connecting rod, a movable cavity for movement of the movable ring is provided on the side wall of the first through cavity, a plurality of first ribs are provided on the inner wall of the movable cavity, a first return spring is provided on the movable ring, one end of the first return spring rests on the inner wall of the movable cavity, and the length of the first rib is smaller than the length of the movable cavity.

[0012] Furthermore, a second connecting rod is provided on the pressing block, a connecting groove corresponding to the second connecting rod is provided on the first support plate, an opening is provided on the side wall of the connecting groove, a third movable block is provided in the opening, a plurality of second ribs are provided on the third movable block, a third rib is provided on the second connecting rod, and a first inclined surface is provided at the bottom of the third rib.

[0013] Furthermore, a protrusion is provided on the third movable block, a groove corresponding to the protrusion is provided on the side wall of the connecting groove, a second slider is provided on the protrusion, a second slide groove corresponding to the second slider is provided on the side wall of the groove, and a second reset spring is provided on the second slider.

[0014] Furthermore, a second through cavity is provided on the side wall of the groove, a third connecting rod is provided on the protrusion, a fourth rib is provided on the third connecting rod, a movable plate is provided on the first support plate, and a fixing groove corresponding to the fourth rib is provided on the movable plate.

[0015] Furthermore, a fifth movable groove is provided on the first support plate, the movable plate is located in the fifth movable groove, a push plate is provided on the movable plate, and a support spring is provided at the bottom of the push plate.

[0016] The utility model is beneficial in that it provides a camshaft self-centering fixture suitable for machining camshafts of various models. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0019] In the attached figure:

[0020] Figure 1 This is a schematic structural diagram of a camshaft self-centering fixture in one embodiment of the present utility model.

[0021] Figure 2 for Figure 1 A in the enlarged view.

[0022] Figure 3 for Figure 1 A cross-sectional view of the transmission wheel of the camshaft self-centering fixture in the illustrated embodiment.

[0023] Figure 4 for Figure 1 A cross-sectional view of the drive shaft of the camshaft self-centering fixture in the illustrated embodiment.

[0024] Figure 5 for Figure 4 Enlarged view of point B in .

[0025] Figure 6 for Figure 4 Enlarged view of point C in the figure.

[0026] Figure 7 for Figure 1 A cross-sectional view of the third connecting rod of the camshaft self-centering fixture in the illustrated embodiment.

[0027] Figure 8 for Figure 7 Enlarged view of point D in .

[0028] The meanings of the reference numerals in the figures are as follows:

[0029] 101. Base plate; 102. First support plate; 103. Second support plate; 104. Pressing block; 1041. Second connecting rod; 105. Mounting seat; 106. First clamping jaw; 107. Second clamping jaw; 108. Third movable block; 109. Protrusion; 110. Second slider; 111. First transmission plate; 112. Second transmission plate; 113. Transmission wheel; 1131. Transmission shaft; 114. Movable rod; 115. Movable ring; 116. First return spring; 117. Push plate; 118. Support spring; 119. Second return spring; 120. Third connecting rod; 1201. Fourth rib; 121. Movable plate; 200. Camshaft. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the relevant utility model are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0034] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0035] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] like Figure 1-8 As shown, a camshaft self-centering fixture includes a base plate 101, a first support plate 102, a second support plate 103, a pressure block 104 and a clamping jaw assembly. The first support plate 102, the second support plate 103 and the clamping jaw assembly are all arranged on the base plate 101. The first support plate 102 and the second support plate 103 are arranged in a straight line. The clamping jaw assembly is arranged on one side of the second support plate 103, and the pressure block 104 is arranged on the first support plate 102; the first support plate 102 and the second support plate 103 are respectively provided with The V-shaped groove is used to fix the camshaft 200; the camshaft 200 is placed on the first support plate 102 and the second support plate 103, and the front end is clamped and fixed by a clamping jaw assembly, and the rear end is fixed to the first support plate 102 by a pressing block 104, so as to clamp the camshaft 200 for processing; the setting of the clamping jaw assembly and the pressing block 104 can clamp camshafts 200 of various sizes, so that camshafts 200 of various sizes can be processed, thereby improving the applicability of the fixture.

[0037] The first support plate 102 is provided with a first slider, the bottom plate 101 is provided with a first slide groove for the first slider to move, and the second support plate 103 is also provided with a first slider, the first slider is a T-shaped structure, and the first slide groove is a T-shaped groove, so that the first support plate 102 and the second support plate 103 can move on the bottom plate 101 but cannot escape from the bottom plate 101; the first support plate 102 and the second support plate 103 can be moved according to the length of the camshaft 200 to adjust the position of the first support plate 102 and the second support plate 103, so as to support and fix camshafts 200 of various sizes.

[0038] The clamping jaw assembly includes a mounting base 105, a first movable block, a second movable block, a first clamping jaw 106 and a second clamping jaw 107. The mounting base 105 is provided with a first track and a second track. The first movable block is located in the first track, and the second movable block is located in the second track. The first clamping jaw 106 is provided on the first movable block, and the second clamping jaw 107 is provided on the second movable block.

[0039] A first movable groove is provided on the side wall of the first track, a second movable groove is provided on the side wall of the second track, a first transmission plate 111 is provided on the first movable block, and a second transmission plate 112 is provided on the second movable block. The first transmission plate 111 is located in the first movable groove, and the second transmission plate 112 is located in the second movable groove. A transmission wheel 113 is provided on the mounting seat 105 for transmission cooperation with the first transmission plate 111 and the second transmission plate 112.

[0040] Specifically, the mounting seat 105 is provided with a transmission cavity communicated with the first movable groove and the second movable groove, the transmission wheel 113 is arranged in the transmission cavity, the side wall of the transmission cavity is provided with a first through cavity, the transmission wheel 113 is provided with a transmission shaft 1131, and the transmission shaft 1131 extends from the first through cavity.

[0041] A third movable groove is provided on the transmission shaft 1131, a movable rod 114 is passed through the third movable groove, a first connecting rod is provided on the movable rod 114, a fourth movable groove for the first connecting rod to move is provided on the side wall of the third movable groove, both ends of the first connecting rod extend from the fourth movable groove, a movable ring 115 is provided on the first connecting rod, a movable cavity for the movable ring 115 to move is provided on the side wall of the first through cavity, a plurality of first ribs are provided on the inner wall of the movable cavity, a first return spring 116 is provided on the movable ring 115, one end of the first return spring 116 rests on the inner wall of the movable cavity, and the length of the first rib is less than the length of the movable cavity.

[0042] After the camshaft 200 is placed on the first support plate 102 and the second support plate 103, the position of the camshaft 200 is adjusted so that one end of the camshaft 200 is at the clamping jaw assembly. At this time, the first clamping jaw 106 and the second clamping jaw 107 are in a separated state. The movable rod 114 is pulled outward, and the movable rod 114 drives the movable ring 115 to move. The movable ring 115 squeezes the first return spring 116 and moves to one end of the movable cavity to be staggered with the first rib. The movable rod 114 is rotated, and the movable rod 114 drives the transmission shaft 1131 to rotate, and the transmission wheel 1 13 drives the first transmission plate 111 and the second transmission plate 112 to move, and the first movable block and the second movable block approach each other so that the first clamping jaw 106 and the second clamping jaw 107 clamp the camshaft 200 to fix the camshaft 200, and release the movable rod 114. The first return spring 116 pushes the movable ring 115 to move to one end of the movable cavity, and the movable ring 115 moves to the first rib and uses the first rib to fix the movable ring 115, thereby fixing the first movable block and the second movable block, ensuring the fixing effect of the clamping jaw assembly on the camshaft 200.

[0043] Furthermore, a second connecting rod 1041 is provided on the pressing block 104, a connecting groove corresponding to the second connecting rod 1041 is provided on the first support plate 102, an opening is provided on the side wall of the connecting groove, a third movable block 108 is provided in the opening, a plurality of second ribs are provided on the third movable block 108, a third rib is provided on the second connecting rod 1041, and a first inclined surface is provided at the bottom of the third rib.

[0044] A protrusion 109 is provided on the third movable block 108, a groove corresponding to the protrusion 109 is provided on the side wall of the connecting groove, a second slider 110 is provided on the protrusion 109, a second sliding groove corresponding to the second slider 110 is provided on the side wall of the groove, and a second return spring 119 is provided on the second slider 110.

[0045] A second through cavity is provided on the side wall of the groove, a third connecting rod 120 is provided on the protrusion 109, a fourth rib 1201 is provided on the third connecting rod 120, a movable plate 121 is provided on the first support plate 102, a fixing groove corresponding to the fourth rib 1201 is provided on the movable plate 121, and a second inclined surface is provided on the fourth rib 1201; the third rib 1201 and the fourth rib 1201 are both made of plastic and have a certain deformation ability.

[0046] A fifth movable groove is provided on the first support plate 102 , in which the movable plate 121 is located. A push plate 117 is provided on the movable plate 121 , and a support spring 118 is provided at the bottom of the push plate 117 . The lower end of the support spring 118 rests against the bottom of the fifth movable groove.

[0047] After the camshaft 200 is placed on the first support plate 102 and the second support plate 103, the second connecting rod 1041 is directly inserted into the connecting groove. The first inclined surface on the third rib is used to make the second connecting rod 1041 only move to the bottom of the connecting groove and cannot move upward. The pressing block 104 fixes the camshaft 200 on the first support plate 102. After the camshaft 200 is processed, the push plate 117 is pushed downward. The push plate 117 drives the movable plate 121 to move so that the fourth rib 1201 disengages from the fixed groove. The second return spring 119 drives the second slider 110 to move, and the third movable block 108 drives the second rib to move so that the second rib and the third rib are disengaged. The pressing block 104 can be directly removed from the first support plate 102, and the camshaft 200 can be quickly collected.

[0048] The above descriptions are merely some preferred embodiments of the present disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed herein is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also encompass other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A camshaft self-centering fixture, characterized by: It includes a base plate, a first support plate, a second support plate, a pressure block and a clamping jaw assembly. The first support plate, the second support plate and the clamping jaw assembly are all arranged on the base plate. The first support plate and the second support plate are arranged in a straight line. The clamping jaw assembly is arranged on one side of the second support plate, and the pressure block is arranged on the first support plate.

2. The camshaft self-centering fixture according to claim 1, characterized in that: A first sliding block is provided on the first supporting plate, and a first sliding groove for the first sliding block to move is provided on the bottom plate.

3. The camshaft self-centering fixture according to claim 1, characterized in that: The clamping jaw assembly includes a mounting base, a first movable block, a second movable block, a first clamping jaw and a second clamping jaw. The mounting base is provided with a first track and a second track. The first movable block is located in the first track, and the second movable block is located in the second track. The first clamping jaw is provided on the first movable block, and the second clamping jaw is provided on the second movable block.

4. The camshaft self-centering fixture according to claim 3, characterized in that: A first movable groove is provided on the side wall of the first track, a second movable groove is provided on the side wall of the second track, a first transmission plate is provided on the first movable block, a second transmission plate is provided on the second movable block, the first transmission plate is located in the first movable groove, the second transmission plate is located in the second movable groove, and a transmission wheel is provided on the mounting seat for transmission cooperation with the first transmission plate and the second transmission plate.

5. The camshaft self-centering fixture according to claim 4, characterized in that: The mounting seat is provided with a transmission cavity communicated with the first movable groove and the second movable groove, the transmission wheel is arranged in the transmission cavity, a first through cavity is provided on the side wall of the transmission cavity, the transmission wheel is provided with a transmission shaft, and the transmission shaft extends from the first through cavity.

6. The camshaft self-centering fixture according to claim 5, characterized in that: A third movable groove is provided on the transmission shaft, a movable rod is passed through the third movable groove, a first connecting rod is provided on the movable rod, a fourth movable groove for movement of the first connecting rod is provided on the side wall of the third movable groove, a movable ring is provided on the first connecting rod, a movable cavity for movement of the movable ring is provided on the side wall of the first through cavity, a plurality of first ribs are provided on the inner wall of the movable cavity, a first return spring is provided on the movable ring, one end of the first return spring rests on the inner wall of the movable cavity, and the length of the first rib is smaller than the length of the movable cavity.

7. The camshaft self-centering fixture according to claim 1, characterized in that: A second connecting rod is provided on the pressing block, a connecting groove corresponding to the second connecting rod is provided on the first supporting plate, an opening is provided on the side wall of the connecting groove, a third movable block is provided in the opening, a plurality of second ribs are provided on the third movable block, a third rib is provided on the second connecting rod, and a first inclined surface is provided at the bottom of the third rib.

8. The camshaft self-centering fixture according to claim 7, characterized in that: The third movable block is provided with a protrusion, the side wall of the connecting groove is provided with a groove corresponding to the protrusion, the protrusion is provided with a second slider, the side wall of the groove is provided with a second sliding groove corresponding to the second slider, and the second slider is provided with a second reset spring.

9. The camshaft self-centering fixture according to claim 8, characterized in that: A second through cavity is provided on the side wall of the groove, a third connecting rod is provided on the protrusion, a fourth rib is provided on the third connecting rod, a movable plate is provided on the first support plate, and a fixing groove corresponding to the fourth rib is provided on the movable plate.

10. The camshaft self-centering fixture according to claim 9, characterized in that: A fifth movable groove is provided on the first supporting plate, the movable plate is located in the fifth movable groove, a push plate is provided on the movable plate, and a support spring is provided at the bottom of the push plate.

Images