Chisel seat clamping mechanism assembly
By designing the chisel seat clamping mechanism assembly and using a combination of pins and clamping pins, the problems of inaccurate positioning and inconvenient operation of the chisel seat are solved, efficient and durable workpiece clamping is achieved, and the production efficiency and product quality of the milling drum are improved.
Patent Information
- Application Number
- CN202421617987.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing chisel seats are not positioned accurately on the road milling machine and are inconvenient to operate, resulting in low production efficiency, high cost, and difficult to meet the needs of the fine milling process.
A chisel seat clamping mechanism assembly is designed, including a support seat, clamping mechanism, swing connection assembly and elastic telescopic connection assembly. Through the cooperation of the pin and the clamping pin, the workpiece can be accurately positioned and securely clamped.
It realizes accurate positioning and efficient clamping of workpieces, improves production efficiency, and ensures the consistency and durability of milling drum products.
Smart Images
Figure CN223088246U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of manufacturing of mechanical working tools for pavement engineering, and particularly relates to a chisel seat clamping mechanism assembly. Background Art
[0002] Chisels are used on the milling rotor of a pavement milling machine to mill damaged asphalt or cement pavements. The cutter spacing of an ordinary milling drum is 15 mm, while that of a fine milling drum is generally ≤ 8 mm, and the cutter spacing of "ultra-fine milling" can reach 4 - 6 mm. The depth of fine milling is generally 0 - 100 mm, which is less than the depth of conventional milling of 0 - 300 mm. Regarding the current situation and development of the pavement fine milling process, the number of cutters equipped on a milling drum of the same length is much larger than that of a standard milling drum. The number of cutters on an ordinary 2-meter milling drum is about 170, while the fine milling drum can have up to 1004 cutters at most. Therefore, the milling cost is also much higher than that of ordinary milling and scarifying.
[0003] On the surface of the milling drum, a chisel seat is fixedly or detachably arranged, and the chisel is installed in the chisel seat. It can be imagined that for each chisel, there is a corresponding chisel seat. To fix a large number of chisel seats on the surface of the milling drum regularly and accurately, the corresponding fixture must have characteristics such as precise positioning, easy operation, high production efficiency, and durability. Therefore, there is an urgent need to propose a chisel seat clamping mechanism assembly with precise positioning, easy operation, high production efficiency, and durability. Summary of the Utility Model
[0004] To solve the defects existing in the prior art, the utility model provides a chisel seat clamping mechanism assembly.
[0005] To solve the above technical problems, the utility model provides the following technical solutions:
[0006] The utility model provides a chisel seat clamping mechanism assembly for clamping a workpiece to be welded, including:
[0007] A support seat for supporting the clamping mechanism;
[0008] A clamping mechanism, including a first clamping part for inserting into the positioning hole of the workpiece, a second clamping part for inserting into the positioning groove of the workpiece, a swing connection component, and an elastic telescopic connection component. The first clamping part is arranged on the swing connection component, the swing connection component is arranged on the support seat, and the swing connection component is used to drive the first clamping part to move back and forth in the axial direction of the drum so as to send the workpiece to be welded to different processing stations; the second clamping part is arranged on the elastic telescopic connection component, and the elastic telescopic connection component is arranged on the swing connection component and is used to drive the second clamping part to insert into the positioning groove of the workpiece and to limit the workpiece between the second clamping part and the first clamping part.
[0009] Preferably, the support base includes a first bottom plate, a second bottom plate, a third bottom plate and an adjustment pin. The first bottom plate is located at the lowest end of the clamping mechanism assembly and is used to support the entire clamping mechanism assembly. The second bottom plate is fixed on the first bottom plate. The rear end of the third bottom plate is connected to the second bottom plate by a pin-type movable joint, so that the third bottom plate can rotate around the movable joint by 0 to 90°. The adjustment pin is vertically penetrated through the first bottom plate and is located at the front end of the first bottom plate. The adjustment pin is used to adjust the elevation angle between the third bottom plate and the first bottom plate up and down and can be fixed at the required angle.
[0010] Preferably, the swing connection assembly includes a swing plate, a swing base, a rotating pin and a swing pin. The swing plate is rotatably arranged on the third bottom plate through the rotating pin. An arc-shaped slot hole 0 is arranged at the rear end of the third bottom plate. The swing pin is arranged on the third bottom plate and is located at both ends of the arc-shaped slot hole. The swing pin is used to limit the rotation angle of the swing plate. The swing base is arranged at the rear end of the swing plate.
[0011] Preferably, after the central plane of the swing plate rotates, a left deviation angle and a right deviation angle are respectively formed with the central plane of the third bottom plate. The axis center of the rotating pin is located on the central plane of the third bottom plate.
[0012] Preferably, the first clamping part includes a pin socket, a pin, a handle and a limit pin. The pin socket is arranged at the front end of the swing plate. The pin is arranged in the central through hole of the pin socket. The handle is connected to the rear end of the pin. The limit pin is arranged on the swing plate. The limit pin is located at the rear side of the pin socket and there is a card slot between the limit pin and the pin socket. The handle is used to insert the pin into the workpiece positioning hole, and then the handle can be clamped into the card slot between the limit pin and the pin socket, so that the pin cannot withdraw backward.
[0013] Preferably, the elastic telescopic connection assembly includes a connecting plate, a first locking nail, a second locking nail, a track, a slider and a tension spring. The connecting plate is rotatably arranged on the rear end face of the swing base through the first locking nail. The connecting plate is also locked on the rear end face of the swing base through the second locking nail. The track is arranged on the connecting plate and is located above the swing plate. The slider is slidably arranged in the track and its rear end is connected to the connecting plate through the tension spring.
[0014] Preferably, the second clamping part includes a pin socket and a pin. The pin socket is arranged at the front end of the slider. The pin is arranged on the pin socket. The pin is used to insert into the workpiece positioning groove.
[0015] Preferably, the track is rectangular and the track adopts a semi-closed groove structure. A T-shaped handle is installed on the slider, and the slider is moved through the T-shaped handle.
[0016] The utility model has the following beneficial effects compared with the prior art:
[0017] By holding the handle of the utility model, the telescopic bolt can be inserted into and withdrawn from the workpiece positioning hole, and by pushing the T-shaped handle, the clamping pin can be sleeved into the workpiece positioning groove. The two can fit and match, so that all degrees of freedom of the rotation and movement of the workpiece can be restricted to achieve the purpose of the clamping mechanism. The utility model can achieve the characteristics of accurate positioning, easy operation, high production efficiency, and durability. Therefore, the quality consistency of the milling drum products produced is good and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a three-dimensional view of the clamping mechanism of the chisel seat of the utility model;
[0019] Figure 2 is a front view of the clamping mechanism of the chisel seat of the utility model;
[0020] Figure 3 is Figure 2 a full sectional view taken along A-A in
[0021] Figure 4 is a left limit view of the clamping mechanism of the chisel seat of the utility model;
[0022] Figure 5 is a right limit view of the clamping mechanism of the chisel seat of the utility model;
[0023] Figure 6 is a front view of the clamping mechanism of the chisel seat of the utility model for clamping the chisel on the drum;
[0024] Figure 7 is a side view of the clamping mechanism of the chisel seat of the utility model for clamping the chisel on the drum. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The following is a description of the preferred embodiments of the utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the utility model, and are not intended to limit the utility model.
[0026] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left" and "right" is based on the orientation or positional relationship shown in the drawings of the specification Figure 1 merely for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.
[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "attachment" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] As Figures 1 to 3 shown, this embodiment provides a chisel seat clamping mechanism assembly for clamping a workpiece to be welded, including:
[0029] A support base for supporting the clamping mechanism 1;
[0030] The clamping mechanism 1 includes a first clamping portion for inserting into the workpiece positioning hole, a second clamping portion for inserting into the workpiece positioning groove, a swing connection assembly, and an elastic telescopic connection assembly. The first clamping portion is disposed on the swing connection assembly, the swing connection assembly is disposed on the support base, and the swing connection assembly is used to drive the first clamping portion to move back and forth in the axial direction of the roller so as to send the workpiece to be welded to different processing stations; the second clamping portion is disposed on the elastic telescopic connection assembly, and the elastic telescopic connection assembly is disposed on the swing connection assembly and is used to drive the second clamping portion to insert into the workpiece positioning groove and to limit the workpiece between the second clamping portion and the first clamping portion.
[0031] As Figure 3 shown, the support base includes a first base plate 2, a second base plate 3, a third base plate 4, and an adjustment pin 16. The first base plate 2 is located at the lowest end of the clamping mechanism assembly and is used to support the entire clamping mechanism assembly; the second base plate 3 is fixed on the first base plate 2, and the rear end of the third base plate 4 is connected to the second base plate 3 by a pin-type movable joint, so that the third base plate 4 can rotate around the movable joint by 0 to 90°. The adjustment pin 16 is vertically inserted through the first base plate 2 and is located at the front end of the first base plate 2. The adjustment pin 16 is used to adjust the elevation angle between the third base plate 4 and the first base plate 2 up and down and can be fixed at the required angle. Among them, the length direction of the third base plate is set from the rear end to the front end direction.
[0032] As Figure 3As shown, the swing connection assembly includes a swing plate 5, a swing base 6, a rotating pin 18, and a swing pin 17. The swing plate 5 is rotatably arranged on the third bottom plate 4 through the rotating pin 18. An arc-shaped slot hole 40 is provided at the rear end of the third bottom plate 4. The swing pin 17 is arranged on the third bottom plate 4 and located at both ends of the arc-shaped slot hole 40. The swing pin 17 is used to limit the rotation angle of the swing plate 5, and the left and right rotation angles are between 0 and 10°. The swing base 6 is arranged at the rear end of the swing plate 5. The length direction of the arc-shaped slot hole is the circumferential direction centered on the axis of the rotating pin and with the distance from the axis of the rotating pin to the arc-shaped slot hole as the radius. By arranging the swing pin in this circumferential direction, the left and right rotation angles of the swing plate can be limited.
[0033] As Figures 4 to 5 shown, after the middle dividing plane L1 of the swing plate 5 rotates, it forms a left deviation angle α and a right deviation angle α1 with the middle dividing plane L of the third bottom plate 4 respectively. The axis of the rotating pin 18 is located on the middle dividing plane of the third bottom plate 4.
[0034] As Figure 3 shown, the first clamping part includes a pin socket 13, a pin 14, a handle 15, and a limit pin 150. The pin socket 13 is arranged at the front end of the swing plate 5. The pin 14 is arranged in the central through hole of the pin socket 13. The handle 15 is connected to the rear end of the pin 14. The limit pin 150 is arranged on the swing plate 5. The limit pin 150 is located behind the pin socket 13 and there is a card slot between it and the pin socket 13. The handle 15 is used to insert the pin 14 into the workpiece positioning hole, and then the handle 15 can be clamped into the card slot between the limit pin 150 and the pin socket 13, so that the pin 14 cannot be withdrawn backward.
[0035] As Figure 3 shown, the elastic telescopic connection assembly includes a connecting plate 19, a first locking pin 60, a second locking pin 61, a track 7, a slider 9, and a tension spring 8. The connecting plate 19 is rotatably arranged on the rear end face of the swing base 6 through the first locking pin 60. The connecting plate 19 is also locked on the rear end face of the swing base 6 through the second locking pin 61. The track 7 is arranged on the connecting plate 19 and above the swing plate 5. The slider 9 is slidably arranged in the track 7 and its rear end is connected to the connecting plate 19 through the tension spring 8.
[0036] As Figure 3 shown, the second clamping part includes a pin socket 11 and a pin 10. The pin socket 11 is arranged at the front end of the slider 9. The pin 10 is arranged on the pin socket 11. The pin 10 is used to insert into the workpiece positioning groove. Among them, the track 7 is rectangular and the track 7 adopts a semi-closed groove structure. A T-shaped handle 12 is installed on the slider 9, and the slider 9 is moved through the T-shaped handle 12.
[0037] The working principle of this embodiment will be further described below:
[0038] As shown in Figure 3 , Figure 6 and Figure 7 , a number of workpieces 101 need to be welded and fixed on the drum 100. The workpieces 101 are provided with positioning holes 103 and positioning grooves 102. The workpieces 101 are arranged uniformly according to the lateral distance X1 (the axial direction of the drum 100) and the circumferential angle γ. The clamping mechanism 1 moves back and forth in the X direction, and the drum 100 rotates along the direction R. According to such a rule, the workpieces 101 are positioned and welded on the drum 100 one by one. A pin socket 13 is provided at the front end of the swing plate 5, and there is a through hole in the center for accommodating the pin 14. The rear part of the pin 14 is connected to the handle 15. Holding the handle 15 can stretch the pin 14 in and out of the workpiece positioning hole 103. Pushing the T-shaped handle 12 along the direction F, the locking pin 10 is sleeved into the workpiece positioning groove 102, and the two can fit and match. Due to the pulling force of the tension spring in the elastic telescopic connection assembly, the workpiece is pulled towards the pin direction by the locking pin. Since the handle is clamped in the card slot between the limit pin and the pin socket, the pin cannot withdraw backward, which makes the workpiece clamped between the pin and the locking pin, so that all degrees of freedom of rotation and movement of the workpiece 101 can be restricted to achieve the purpose of this clamping mechanism.
[0039] As can be seen from the above, a clamping mechanism assembly of a chisel seat in this case can achieve the characteristics of accurate positioning, easy operation, high production efficiency, and durability. The milling drum products produced thereby have good quality consistency and high production efficiency.
[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A chisel holder clamping mechanism assembly for clamping a workpiece to be welded, characterized in that, Comprising: A support base for supporting the clamping mechanism (1); The clamping mechanism (1) includes a first clamping portion for inserting into the workpiece positioning hole, a second clamping portion for inserting into the workpiece positioning groove, a swing connection assembly, and an elastic telescopic connection assembly. The first clamping portion is disposed on the swing connection assembly, the swing connection assembly is disposed on the support base, and the swing connection assembly is configured to drive the first clamping portion to move back and forth in the axial direction of the roller so as to send the workpiece to be welded to different processing stations; the second clamping portion is disposed on the elastic telescopic connection assembly, and the elastic telescopic connection assembly is disposed on the swing connection assembly and is configured to drive the second clamping portion to insert into the workpiece positioning groove and to limit the workpiece between the second clamping portion and the first clamping portion.
2. The assembly of the chisel holder clamping mechanism according to claim 1, characterized in that, The support base includes a first bottom plate (2), a second bottom plate (3), a third bottom plate (4), and an adjustment pin (16). The first bottom plate (2) is located at the lowest end of the clamping mechanism assembly and is used to support the entire clamping mechanism assembly; the second bottom plate (3) is fixed on the first bottom plate (2), the rear end of the third bottom plate (4) is connected to the second bottom plate (3) by a pin-type movable joint, such that the third bottom plate (4) can rotate around the movable joint by 0 to 90°, the adjustment pin (16) is vertically penetrated through the first bottom plate (2) and is located at the front end of the first bottom plate (2), and the adjustment pin (16) is used to adjust the elevation angle between the third bottom plate (4) and the first bottom plate (2) up and down and can be fixed at the required angle.
3. The assembly of a chisel holder clamping mechanism according to claim 2, characterized in that, The swing connection assembly includes a swing plate (5), a swing base (6), a rotating pin (18), and a swing pin (17). The swing plate (5) is rotatably disposed on the third bottom plate (4) through the rotating pin (18). An arc-shaped slot hole (40) is provided at the rear end of the third bottom plate (4). The swing pin (17) is disposed on the third bottom plate (4) and is located at both ends of the arc-shaped slot hole (40). The swing pin (17) is used to limit the rotation angle of the swing plate (5). The swing base (6) is disposed at the rear end of the swing plate (5).
4. The assembly of a chisel holder clamping mechanism according to claim 3, characterized in that, After the middle plane of the swing plate (5) rotates, a left deviation angle and a right deviation angle are respectively formed with the middle plane of the third bottom plate (4). The axis center of the rotating pin (18) is located on the middle plane of the third bottom plate (4).
5. The assembled clamping mechanism for the chisel seat according to claim 4, characterized in that, The first clamping portion includes a pin seat (13), a pin (14), a handle (15), and a limit pin (150). The pin seat (13) is disposed at the front end of the swing plate (5). The pin (14) is disposed in the central through hole of the pin seat (13). The handle (15) is connected to the rear end of the pin (14). The limit pin (150) is disposed on the swing plate (5). The limit pin (150) is located behind the pin seat (13) and there is a card slot between the limit pin (150) and the pin seat (13). The handle (15) is used to insert the pin (14) into the workpiece positioning hole, and then the handle (15) can be clamped into the card slot between the limit pin (150) and the pin seat (13), such that the pin (14) cannot be withdrawn backward.
6. The assembly of the clamping mechanism for the chisel seat according to claim 5, characterized in that, The elastic telescopic connection assembly includes a connecting plate (19), a first locking pin (60), a second locking pin (61), a track (7), a slider (9) and a tension spring (8). The connecting plate (19) is rotatably arranged on the rear end face of the swing base (6) through the first locking pin (60), and the connecting plate (19) is also locked on the rear end face of the swing base (6) through the second locking pin (61). The track (7) is arranged on the connecting plate (19) and above the swing plate (5), and the slider (9) is slidably arranged in the track (7), and its rear end is connected to the connecting plate (19) through the tension spring (8).
7. The assembly of a chisel holder clamping mechanism according to claim 6, characterized in that, The second clamping part includes a pin seat (11) and a pin (10). The pin seat (11) is arranged at the front end of the slider (9), the pin (10) is arranged on the pin seat (11), and the pin (10) is used to insert into the workpiece positioning groove.
8. The assembly of a chisel holder clamping mechanism according to claim 7, characterized in that, The track (7) is rectangular, and the track (7) adopts a semi-closed groove structure. A T-shaped handle (12) is installed on the slider (9), and the slider (9) is moved through the T-shaped handle (12).