Jig capable of conveniently and accurately cutting skylight part of automobile ceiling
By designing a fixture including a horizontal support strip and a vertical cylinder, the problem of easy flip of the car roof sunroof is solved, and the precise cutting of the cutting knife is achieved.
Patent Information
- Application Number
- CN202421205580.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the prior art, the vehicle roof sunroof is easily flipped due to downward pressure when cut by a cutting knife, resulting in inaccurate cutting.
A fixture is designed, which includes a fixture body, a cavity, a first support block, a positioning bump, a transverse support strip and a vertical cylinder. The horizontal support strip supports the side inner wall of the car roof sunroof part, and the vertical cylinder drives the horizontal support strip to move downward for storage, and moves the cutting knife horizontally around the cavity ring through the lifting mechanism and the horizontal moving mechanism to cut uneven parts.
Through the support of the cross-lift strip, the side inner wall of the car roof sunroof is maintained horizontally during the cutting process, avoiding flips, and achieving accurate cutting of the cutting knife.
Smart Images
Figure CN222608180U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile roofs, in particular to a jig for accurately cutting a skylight portion of an automobile roof. Background Art
[0002] like Figure 1 As shown, the existing jig for cutting the sunroof of a car roof includes a jig body 1, and first brackets 4 are respectively installed on the front and rear outer walls of the jig body 1, and a positioning protrusion 2 is installed on the top wall of the first bracket 4. The middle part of the top wall of the jig body 1 is concave to form a cavity 11, as shown in FIG. Figure 2 As shown, a reserved hole is provided on the front and rear of the car roof 5, the car roof 5 is placed on the fixture body 1, the corresponding positioning protrusion 2 is inserted into the reserved hole of the car roof 5, the skylight part of the car roof 5 is aligned with the cavity 11 of the fixture body 1, and the position of the side inner wall 6 of the skylight part of the car roof 5 is inward over the side cavity wall 3 of the cavity 11. A cutting knife (not shown in the figure) is provided above the cavity 11, and the cutting knife cuts the uneven part on the side inner wall 6 of the skylight part of the car roof 5. The defect of the prior art is that the side inner wall 6 of the skylight part of the car roof 5 is easily pressed down by the cutting knife to turn downward toward the cavity 11 during the cutting process, resulting in the cutting knife being unable to accurately cut the uneven part on the side inner wall 6. Utility Model Content
[0003] The utility model aims to provide a jig which is convenient for accurately cutting the sunroof part of the automobile roof, and can prevent the inner wall of the sunroof part of the automobile roof from being easily turned downward toward the cavity of the jig body due to being pressed down by a cutting knife.
[0004] A jig for accurately cutting a sunroof part of a car roof comprises a jig body, wherein the middle of the top wall of the jig body is concave to form a cavity, and the front and rear outer side walls of the jig body are respectively provided with a first support block, and the top wall of the first support block partially protrudes upward to form a positioning convex block, and the positioning convex block passes upward over the top wall of the jig body; the top wall of the jig body is for placing a car roof, and the positioning convex block is for inserting a reserved hole of the car roof; a cutting knife is provided above the cavity, and the cutting knife can be moved downward to extend into the cavity, and move horizontally around the cavity to cut the uneven part of the inner wall of the side of the car roof sunroof part that passes over the side wall of the cavity; a horizontal support bar parallel to the side wall of the cavity is provided on the inner side of the top of the side wall of the cavity, and the horizontal support bar is installed on the cavity wall, and the top wall of the horizontal support bar is flush with the top wall of the jig body, and the top wall of the horizontal support bar supports the part of the sunroof part of the car roof that passes over the side wall of the cavity.
[0005] Furthermore, a vertical cylinder is installed on the bottom wall of the cavity, and the horizontal supporting bar is installed on the top of the vertical cylinder.
[0006] Furthermore, the horizontal supporting bar can be moved downward into the cavity for storage by being driven by the vertical cylinder.
[0007] Furthermore, a second support block is provided in front of the first support block, the rear of the top wall of the second support block is flush with the top wall of the horizontal support bar, and the rear of the top wall of the second support block supports the front end of the car roof; the front of the top wall of the second support block is raised by 20 mm.
[0008] Furthermore, a transverse marking line is provided on the rear side wall of the raised portion, and the height position of the transverse marking line is 4 mm higher than the rear portion of the top wall of the second support block.
[0009] Furthermore, it comprises a lifting mechanism, on which the cutting knife is mounted, and driven by the lifting mechanism to move downward and extend into the cavity as described above.
[0010] Furthermore, it comprises a transverse movement mechanism, the lifting mechanism is installed on the transverse movement mechanism, the transverse movement mechanism drives the lifting mechanism to make a circumferential transverse movement around the cavity, thereby driving the cutting knife to make a circumferential transverse movement around the cavity to complete the cutting.
[0011] The beneficial effect is that the part of the car roof sunroof that passes over the side cavity wall is supported by the top wall of the cross support bar, so it can remain horizontal during the cutting process by the cutting knife, and is not easily pressed down to the cavity of the fixture body and flipped downward, so that the cutting knife can accurately cut the uneven part on the side inner wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a stereoscopic diagram of an existing jig for cutting a sunroof portion of a car roof;
[0013] Figure 2 yes Figure 1 A three-dimensional image of a jig with a car roof (5) placed on the jig;
[0014] Figure 3 It is a three-dimensional diagram of a jig for cutting a sunroof portion of a car roof according to the utility model, on which a car roof (5) has been placed;
[0015] In the figure: 1, fixture body; 2, positioning protrusion; 3, side cavity wall; 4, first support block; 5, car roof; 6, side inner wall of skylight; 7, second support block; 8, raised part; 9, horizontal support bar; 10, vertical cylinder; 11, cavity. DETAILED DESCRIPTION
[0016] The invention of the utility model is further described in detail below in conjunction with specific implementation methods.
[0017] like Figure 3As shown, the jig for cutting the sunroof of the car roof 5 includes a jig body 1, and the first bracket 4 is respectively installed on the front and rear outer walls of the jig body 1, and the top wall of the first bracket 4 is equipped with a positioning protrusion 2. A second bracket 7 is arranged in front of the first bracket 4 in front, and the rear part of the top wall of the second bracket 7 is flush with the top wall of the jig body 1; the front part of the top wall of the second bracket 7 is raised by 20mm; a horizontal marking line (not shown in the figure) is arranged on the rear side wall of the raised part 8, and the height position of the horizontal marking line is 4mm higher than the rear part of the top wall of the second bracket 7. A similar second bracket 7 is arranged behind the first bracket 4 in the back, and it will not be repeated. The car roof 5 is 4mm thick, and a reserved hole is respectively arranged on the front and rear parts thereof. The operator places the car roof 5 on the fixture body 1, and the corresponding positioning protrusion 2 is inserted into the reserved hole of the car roof 5 to be laterally limited; the front end of the car roof 5 is placed on the rear part of the top wall of the second supporting block 7, and then the operator checks whether the front end top wall of the car roof 5 is flush with the horizontal marking line. If it is flush, it means that the car roof 5 is in a flat state. If it is not flush, it proves that the end of the car roof 5 is warped and needs to be straightened.
[0018] The middle part of the top wall of the fixture body 1 is concave to form a cavity 11 (see Figure 1 The existing jig shown in the figure, the jig of the utility model also has a cavity 11, four vertical cylinders 10 are installed on the inner bottom wall of the cavity 11, and the top wall of each vertical cylinder 10 is equipped with a horizontal support bar 9, and the four horizontal support bars 9 are flush with the top walls of the jig body 1 and are respectively arranged side by side with the tops of the four side walls 3 of the cavity 11. The car roof 5 mentioned above is already in a flat state, and the skylight part of the car roof 5 is aligned with the cavity 11 of the jig body 1; a part of the skylight part of the car roof 5 passes over the side wall 3 of the cavity 11 and is supported by the horizontal support bar 9, so the position of the side inner wall 6 of the skylight part of the car roof 5 passes inwardly over the side wall 3 of the cavity 11. If the skylight part of the car roof 5 of a certain model does not pass over the side wall 3 of the cavity 11, there is no need to use the horizontal support bar 9, and the horizontal support bar 9 is driven by the vertical cylinder 10 to move down to the cavity 11 for storage. The cutting process is described in detail below.
[0019] A cutting knife, a lifting mechanism (not shown) and a transverse movement mechanism are arranged above the cavity 11. The cutting knife is mounted on the lifting mechanism, and the lifting mechanism is mounted on the transverse movement mechanism. The cutting knife is driven by the lifting mechanism to move downward and extend into the cavity 11, and then the transverse movement mechanism drives the lifting mechanism and the cutting knife to make a circumferential transverse movement around the cavity 11. The cutting knife cuts the uneven part of the inner wall 6 of the sunroof part of the car roof 5 that passes over the side cavity wall 3 of the cavity 11. Since the part of the sunroof part of the car roof 5 that passes over the side cavity wall 3 of the cavity 11 inward is supported by the top wall of the horizontal support bar 9, it can maintain a horizontal state when being cut by the cutting knife, and it is not easy to be pressed down by the cutting knife to the cavity 11 of the fixture body 1 and flipped downward, so it is easy to accurately cut only the uneven part of the inner wall 6 of the sunroof part of the car roof 5. After cutting, the finished car roof 5 is obtained.
[0020] The above is only an implementation method of the utility model, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the utility model, which still fall within the scope of patent protection.
Claims
1. A jig for accurately cutting the sunroof of a car roof, comprising a jig body, the middle of the top wall of the jig body is concave to form a cavity, the front and rear outer walls of the jig body are each equipped with a first support block, the top wall of the first support block partially protrudes upward to form a positioning convex block, and the positioning convex block passes over the top wall of the jig body upward; the top wall of the jig body is for placing the car roof, and the positioning convex block is for inserting the reserved hole of the car roof; a cutting knife is provided above the cavity, the cutting knife can move downward to extend into the cavity, and move around the cavity to cut the uneven part of the inner wall of the side of the car roof sunroof that passes over the side wall of the cavity, characterized in that: A horizontal support bar is arranged on the inner side of the top of the cavity side wall and is arranged on the cavity wall. The top walls of the horizontal support bar and the fixture body are flush. The top wall of the horizontal support bar supports the part of the car roof sunroof that passes over the cavity side wall.
2. The jig for accurately cutting the sunroof of a car roof as claimed in claim 1, characterized in that: A vertical cylinder is arranged on the bottom wall of the cavity, and the horizontal supporting bar is arranged on the top of the vertical cylinder.
3. The jig for accurately cutting the sunroof of a car roof as claimed in claim 2, characterized in that: The horizontal supporting bar is driven by the vertical cylinder to move downward into the cavity for storage.
4. The jig for accurately cutting the sunroof of a car roof as claimed in claim 1, characterized in that: A second support block is arranged in front of the first support block, the rear part of the top wall of the second support block is flush with the top wall of the horizontal support bar, and the rear part of the top wall of the second support block supports the front end of the automobile roof; the front part of the top wall of the second support block is convex by 20mm.
5. The jig for accurately cutting the sunroof of a car roof as claimed in claim 4, characterized in that: A transverse marking line is arranged on the rear side wall of the raised portion, and the height position of the transverse marking line is 4 mm higher than the rear portion of the top wall of the second support block.