Knurling device for automobile heat shield

Abstract

The utility model discloses an automobile heat shield knurling device which comprises a machining table, a knurling mechanism and a punching mechanism, the knurling mechanism and the punching mechanism are arranged on the machining table front and back, the knurling mechanism comprises a lifting table, a knurling assembly arranged above one end of the lifting table and a push-out assembly arranged on the front side of the lifting table, and a concave cavity is formed in the front side of the machining table. A supporting block is arranged in the concave cavity, the lifting table is arranged in the concave cavity in a lifting mode, and a guide hole in sliding fit with the supporting block is formed in the lifting table; the punching mechanism comprises an edge pressing assembly and a punching assembly, a positioning groove communicated with the concave cavity is formed in the upper surface of the rear side of the machining table, a positioning assembly is arranged at one end of the positioning groove, and the workpiece is punched through cooperation of the edge pressing assembly and the punching assembly after being positioned by the positioning assembly. The automatic knurling and punching device can replace a traditional manual knurling technology, automatic knurling and punching operation of heat shield machining is achieved, the production efficiency of the heat shield is greatly improved, and the purpose of effectively absorbing noise generated by the heat shield in the automobile running process can be achieved through a machined micropore structure.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a knurling processing device for an automobile heat shield. Background Art

[0002] A heat shield is a functional structural part used for heat insulation of an automobile. Its traditional processing methods include manual knurling, stretching, trimming, shaping, punching and side punching, etc. The process is complex. Manual knurling leads to low production efficiency, and the heat shield produced in this way has a large noise during use, cannot meet the requirements of automobile use, and the user experience is poor. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a knurling processing device for an automobile heat shield, aiming to solve the technical problems existing in the prior art that the traditional manual knurling process affects the production efficiency, and the heat shield processed has a large noise during use and cannot meet the requirements of automobile use.

[0004] The technical solution of the utility model is: a knurling processing device for an automobile heat shield, including a processing table, a knurling mechanism and a punching mechanism arranged front and back on the processing table. The knurling mechanism includes a lifting table, a knurling component arranged above one end of the lifting table, and a pushing component arranged on the front side of the lifting table. An inner cavity is arranged inside the front side of the processing table, and a plurality of support blocks are arranged in the inner cavity. The lifting table is arranged to be lifted and lowered in the inner cavity. A plurality of guide holes are opened on the lifting table and are in sliding fit with the respective support blocks one by one. After the lifting table rises to cooperate with the knurling component to perform knurling printing on the surface of the workpiece, it descends and is received in the inner cavity and supports the workpiece through the support blocks. The pushing component is used to push the workpiece to the punching mechanism; the punching mechanism includes a blanking component and a punching component. A positioning groove communicated with the inner cavity is arranged on the upper surface of the rear side of the processing table, and a positioning component is arranged at one end of the positioning groove. The workpiece can be pushed into the positioning groove and positioned by the positioning component. The blanking component and the punching component are used to cooperate to punch the workpiece.

[0005] Further, in the utility model, the length of the inner cavity extends along the left and right sides of the processing table, and a plurality of the support blocks are arranged at equal intervals in the inner cavity. The height of the support blocks is the same as the height of the upper surface of the processing table.

[0006] Further, in the utility model, the lifting table is driven to lift and lower by a first lifting cylinder. There are two first lifting cylinders, which are respectively installed on the left and right sides of the bottom of the processing table through mounting plates. The output shaft of the first lifting cylinder passes through the bottom of the processing table and is connected to the lifting table. Vertical guide plates for guiding the workpiece are respectively arranged on both sides of the lifting table.

[0007] Further, in the utility model, the knurling assembly includes a knurling roller installed on a support frame and driven by a motor. Each of the vertical guide plates on each side of the lifting table is divided into left and right sections, and the knurling roller is arranged above the left and right sections of the vertical guide plates on both sides.

[0008] Further, in the utility model, the pushing-out assembly includes a lifting plate installed on a lifting frame and driven by a second lifting cylinder to lift and lower, a telescopic plate installed on the lifting plate and driven by a telescopic cylinder to stretch and retract, and a connecting frame connected to the telescopic plate. A plurality of pushing plates are connected to the connecting frame, and the pushing plates are arranged staggeredly with the support blocks.

[0009] Further, in the utility model, the positioning assembly includes a positioning plate driven by a pushing-out cylinder, and the positioning plate is slidably arranged at one end of the positioning groove.

[0010] Further, in the utility model, the edge pressing assembly includes a U-shaped pressing frame installed on an edge pressing support frame and driven by a downward pressing cylinder to lift and lower. The punching assemblies are respectively arranged on both sides inside the U-shaped pressing frame.

[0011] Further, in the utility model, the punching assembly includes a punching plate installed inside the U-shaped pressing frame and driven by a punching cylinder to lift and lower, and a plurality of punching heads connected to the punching plate. The bottom of the positioning groove is provided with punch holes corresponding to and cooperating with the plurality of punching heads one by one.

[0012] Compared with the prior art, the utility model has the following advantages: When processing the heat shield, the input workpiece first passes through the knurling mechanism. With the cooperation of the lifting table, the knurling roller, and the support blocks, the workpiece moves while knurling is printed on the surface. The workpiece after knurling printing is then pushed by the pushing-out assembly to the punching mechanism. After the edge pressing assembly presses the two side edges of the workpiece tightly, the two punching assemblies simultaneously press down to punch micro holes at the two side edges of the workpiece. This micro hole structure can effectively absorb the noise generated by the heat shield during the driving of the vehicle. The processing device of the utility model can replace the traditional manual knurling process, realize the automatic knurling and punching operations of the heat shield processing, and greatly improve the production efficiency of the heat shield. Description of the Drawings

[0013] Figure 1 is the top view of the utility model;

[0014] Figure 2 is the front view of the utility model;

[0015] Figure 3 is Figure 1 the A-A cross-sectional view of

[0016] Figure 4 is the working state schematic diagram when the utility model performs knurling printing on the surface of the workpiece;

[0017] Figure 5 This is a schematic diagram of the working state when the present utility model performs knurling printing on a workpiece;

[0018] Figure 6 is Figure 1 the B - B sectional view of

[0019] Figure 7 This is a schematic diagram of the working state when the present utility model punches a workpiece;

[0020] Figure 8 is Figure 7 the partial enlarged schematic view of part C in

[0021] Wherein:

[0022] 1. Processing table; 101. Concave cavity; 102. Support block; 103. Positioning groove; 104. Punching hole;

[0023] 2. Knurling mechanism; 201. Lifting table; 201a. Guide hole; 202. Knurling assembly; 202a. Support frame; 202b. Motor; 202c. Knurling roller; 203. Pushing - out assembly; 203a. Lifting frame; 203b. Second lifting cylinder; 203c. Lifting plate; 203d. Telescopic cylinder; 203e. Telescopic plate; 203f. Connecting frame; 203g. Pushing plate;

[0024] 3. Punching mechanism; 301. Edge - pressing assembly; 301a. Edge - pressing bracket; 301b. Lower - pressing cylinder; 301c. U - shaped pressing frame; 302. Punching assembly; 302a. Punching cylinder; 302b. Punching plate; 302c. Punch head;

[0025] 4. First lifting cylinder;

[0026] 5. Mounting plate;

[0027] 6. Vertical guide plate;

[0028] 7. Positioning assembly; 701. Pushing - out cylinder; 702. Positioning plate;

[0029] a. Workpiece. Specific embodiments

[0030] The following specifically describes the specific embodiments of the present utility model in conjunction with the attached drawings.

[0031] Embodiment:

[0032] The specific embodiments of a knurling processing device for an automobile heat insulation cover according to the present utility model are shown in conjunction with the attached drawings, as Figure 1, which mainly includes a processing table 1. A knurling mechanism 2 is provided on the front side of the processing table 1, and the knurling mechanism 2 is used for knurling the surface of the workpiece a. A punching mechanism 3 is provided on the rear side of the processing table 1, and the punching mechanism 3 is used for punching micro-holes on the surface of the workpiece a.

[0033] Combined with Figures 1 to 5 , the knurling mechanism 2 mainly includes a lifting table 201, a knurling assembly 202 provided above one end of the lifting table 201, and a pushing assembly 203 provided on the front side of the lifting table 201.

[0034] Referring to Figures 1 to 3 , the specific structure of the lifting table 201 is as follows: an internal cavity 101 is provided inside the front side of the processing table 1. The length of the internal cavity 101 extends along the left and right sides of the processing table 1. A number of support blocks 102 are equally spaced in the internal cavity 101, and the height of each support block 102 is the same as the height of the upper surface of the processing table 1. The lifting table 201 is arranged in the internal cavity 101. A first lifting cylinder 4 is installed on the left and right sides of the bottom of the processing table 1 through mounting plates 5 respectively. The output shafts of the two first lifting cylinders 4 pass through the bottom of the processing table 1 and are respectively connected to both ends of the lifting table 201. The lifting table 201 is driven to lift by the two first lifting cylinders 4. A plurality of guide holes 201a that are slidably matched with the respective support blocks 102 one by one are provided on the lifting table 201. When the lifting table 201 lifts, the support blocks 102 can slide along the guide holes 201a. Vertical guide plates 6 are respectively provided on both sides of the lifting table 201. The workpiece a is placed between the vertical guide plates 6 on both sides for processing and can move on the lifting table 201 along the vertical guide plates 6.

[0035] Referring to Figures 1 to 3 , the specific structure of the knurling assembly 202 is as follows: the knurling assembly 202 mainly includes a knurling roller 202c installed on a support frame 202a and driven by a motor 202b. Each vertical guide plate 6 on each side of the lifting table 201 is divided into left and right sections. The knurling roller 202c is arranged above the left and right sections of the vertical guide plates 6 on both sides, so as to avoid contact between the vertical guide plates 6 and the knurling roller 202c when the lifting table 201 drives the workpiece a to rise and contact the knurling roller 202c, ensuring that the two do not interfere with each other.

[0036] Referring to Figures 3 to 5 , when the workpiece a to be processed is fed in, the initial state of the lifting table 201 is as Figure 3As shown, the upper surfaces of the lifting platform 201, the support block 102, and the processing table 1 are at the same height. Then, the workpiece a is placed between the vertical guide plates 6 on both sides of the lifting platform 201, and one end of the workpiece a is located below the knurling roller 202c. Then, the two first lifting cylinders 4 are started at the same time to drive the lifting platform 201 to rise and simultaneously drive the workpiece a to rise so that one end of the workpiece a contacts the knurling roller 202c. Then, the motor 202b is started to drive the knurling roller 202c to rotate. The workpiece a is driven by the knurling roller 202c to move along the vertical guide plate 6 on the lifting platform 201. At the same time, the knurling roller 202c performs knurling printing on the surface of the workpiece a, as shown in FIG. Figure 4 Until the other end of the workpiece a is separated from the knurling roller 202c and the knurling printing is completed, the two first lifting cylinders 4 are started at the same time, driving the lifting platform 201 to descend to the bottom of the cavity 101 and driving the vertical guide plate 6 to be accommodated in the cavity 101. During the descent of the lifting platform 201, the workpiece a is driven to descend and is supported on the support block 102 under the obstruction of the support block 102, as shown in FIG. Figure 5 shown.

[0037] Reference Figure 1 , Figure 2 The specific structure of the push-out assembly 203 is that the push-out assembly 203 includes a lifting frame 203a fixedly mounted on the front side of the processing table 1, a second lifting cylinder 203b is provided on the top of the lifting frame 203a, the output end of the second lifting cylinder 203b is connected to the lifting plate 203c, a telescopic cylinder 203d is provided on the top of the lifting plate 203c, the output end of the telescopic cylinder 203d is connected to the telescopic plate 203e, the bottom end of the telescopic plate 203e is connected to a connecting frame 203f, and the bottom end of the connecting frame 203f is connected to a plurality of spaced push plates 203g. The push plates 203g are staggered with the support block 102 to avoid contact between the push plates 203g and the support block 102 when the push plates 203g push the workpiece a on the support block 102, so as to ensure that the two do not interfere with each other.

[0038] Reference Figure 5 as well as Figure 1 , Figure 2, after the knurling is completed, the workpiece a is located on the support block 102. Then, the pushing component 203 pushes the workpiece a to the punching mechanism 3 to punch micro-holes on its surface. When the pushing component 203 works specifically, the telescopic cylinder 203d first drives the telescopic plate 203e, the connecting frame 203f, and the pushing plate 203g to extend synchronously until the pushing plate 203g is above the concave cavity 101 on one side of the workpiece a. Then, the second lifting cylinder 203b drives the lifting plate 203c to descend, thereby driving the telescopic cylinder 203d, the telescopic plate 203e, the connecting frame 203f, and the pushing plate 203g to descend synchronously until the pushing plate 203g descends into the concave cavity 101 on the side of the workpiece a. Then, the telescopic cylinder 203d extends again, and uses the pushing plate 203g to push the workpiece a to below the punching mechanism 3. During the pushing process, the pushing plate 203g moves between two adjacent support blocks 102 and does not come into contact with the support blocks 102.

[0039] Further, in combination with Figure 1 , Figures 5 to 7 , a positioning groove 103 communicating with the concave cavity 101 is provided on the upper surface at the rear side of the processing table 1. The pushing plate 203g of the pushing component 203 can push the workpiece a from the support block 102 in the concave cavity 101 into the positioning groove 103. The width of the positioning groove 103 is the same as the width of the workpiece a. When the workpiece a is completely pushed into the positioning groove 103, the pushing plate 203g abuts against the edge of the positioning groove 103 and can position the edge of the workpiece a. A positioning component 7 is provided at the right end of the positioning groove 103. The positioning component 7 includes a positioning plate 702 driven by a pushing cylinder 701. The pushing cylinder 701 is installed on the processing table 1 on the right side of the positioning groove 103. The positioning plate 702 is slidably arranged at the right end of the positioning groove 103. The pushing cylinder 701 can drive the positioning plate 702 to extend, so that the positioning plate 702 slides along the positioning groove 103 and pushes the workpiece a to the left end of the positioning groove 103, so that the workpiece a is located at the processing position below the punching mechanism 3.

[0040] Referring to Figure 1 , Figure 6 , the punching mechanism 3 mainly includes a blank-holding component 301 and a punching component 302. The blank-holding component 301 is used to press and position the two side edges of the workpiece a, and the punching component 302 is used to punch holes at the two side edges of the workpiece a. The specific structure of the blank-holding component 301 is that the blank-holding component 301 mainly includes a blank-holding bracket 301a installed at the rear side of the processing table 1. A downward pressure cylinder 301b is provided at the top of the blank-holding bracket 301a. The output end of the downward pressure cylinder 301b is connected to a U-shaped pressing frame 301c. The punching components 302 are respectively provided on both sides inside the U-shaped pressing frame 301c. Referring to Figure 7 , the downward pressure cylinder 301b can drive the U-shaped pressing frame 301c to descend, and use the U-shaped pressing frame 301c to press and fix the two side edges of the workpiece a, so as to prevent the workpiece a from shifting during punching.

[0041] Reference Figure 1 、 Figure 6 As shown in FIGS. 1 and 2, the two punching assemblies 302 respectively include punching plates 302b which are installed inside the U-shaped pressing frame 301c and are driven to move up and down by punching cylinders 302a. Each punching plate 302b is connected and driven by two punching cylinders 302a. The two punching cylinders 302a are spaced apart and installed at the top of the U-shaped pressing frame 301c, and the output shafts of the two punching cylinders 302a respectively pass through the U-shaped pressing frame 301c and are connected to both ends of the punching plate 302b. A plurality of punches 302c arranged at equal intervals are connected to the bottom of each punching plate 302b. Reference Figure 7 As shown in FIGS. 1 and 2, when the U-shaped pressing frame 301c descends, it drives the two punching assemblies 302 to descend simultaneously. After the U-shaped pressing frame 301c presses the workpiece a, the two punching assemblies 302 punch the workpiece a synchronously. The punching cylinders 302a are used to drive the punching plates 302b to drive the punches 302c to descend and penetrate into the workpiece a, and two rows of micro-holes are punched on both sides of the workpiece a at the same time. This micro-hole structure can effectively absorb the noise generated by the heat shield during the driving of the vehicle.

[0042] Reference Figure 7 、 Figure 8 In this embodiment, a plurality of punching holes 104 corresponding to the plurality of punches 302c one by one are further provided at the bottom of the positioning groove 103. As shown in FIG. 3, the punches 302c penetrate into the workpiece a and enter the punching holes 104 to complete the punching. Figure 8 As shown in FIG. 3, the punches 302c penetrate into the workpiece a and enter the punching holes 104 to complete the punching.

[0043] Of course, the above embodiments are only used to illustrate the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. Any modification made according to the spirit and essence of the main technical solution of the present invention should be covered within the protection scope of the present invention.

Claims

1. An embossing processing device for an automobile heat shield, characterized in that: The invention comprises a processing table (1), a knurling mechanism (2) and a punching mechanism (3) arranged on the processing table (1) in front and back, the knurling mechanism (2) comprising a lifting platform (201), a knurling assembly (202) arranged above one end of the lifting platform (201), and a pushing assembly (203) arranged on the front side of the lifting platform (201); a concave cavity (101) is arranged inside the front side of the processing table (1), a plurality of support blocks (102) are arranged in the concave cavity (101), the lifting table (201) is arranged in the concave cavity (101) for lifting and lowering, a plurality of guide holes (201a) are opened on the lifting table (201) and are slidably matched with each of the support blocks (102); the lifting table (201) is lifted and lowered to engage with the knurling assembly (202) and to engage with the knurling assembly (203) when the lifting table (201) is lifted and lowered. The component (202) performs knurling printing on the surface of the workpiece (a), then descends and is accommodated in the concave cavity (101) and supports the workpiece (a) through the support block (102); the pushing component (203) is used to push the workpiece (a) to the punching mechanism (3); the punching mechanism (3) comprises a side pressing component (301) and a punching component (302); the upper surface of the rear side of the processing table (1) is provided with a positioning groove (103) connected to the concave cavity (101); one end of the positioning groove (103) is provided with a positioning component (7); the workpiece (a) can be pushed into the positioning groove (103) and positioned by the positioning component (7); the side pressing component (301) and the punching component (302) are used to cooperate to punch the workpiece (a).

2. The knurling processing device for an automobile heat shield according to claim 1, wherein: The length of the concave cavity (101) extends along the left and right sides of the processing table (1), and a plurality of support blocks (102) are arranged at equal intervals in the concave cavity (101), and the height of the support blocks (102) is the same as the height of the upper surface of the processing table (1).

3. The knurling processing device for an automobile heat shield according to claim 2, characterized in that: The lifting platform (201) is driven to rise and fall by a first lifting cylinder (4). The first lifting cylinder (4) has two parts, which are respectively mounted on the left and right sides of the bottom of the processing platform (1) through mounting plates (5). The output shaft of the first lifting cylinder (4) passes through the bottom of the processing platform (1) and is connected to the lifting platform (201). Vertical guide plates (6) for guiding a workpiece (a) are also respectively provided on both sides of the lifting platform (201).

4. The knurling processing device for an automobile heat shield according to claim 3, characterized in that: The knurling assembly (202) comprises a knurling roller (202c) mounted on a support frame (202a) and driven by a motor (202b); the vertical guide plate (6) on each side of the lifting platform (201) is divided into two left and right sections; the knurling roller (202c) is arranged above the left and right sections of the vertical guide plates (6) on both sides.

5. The knurling processing device for an automobile heat shield according to claim 1, wherein: The pushing assembly (203) comprises a lifting plate (203c) mounted on a lifting frame (203a) and driven to be lifted and lowered by a second lifting cylinder (203b), a telescopic plate (203e) mounted on the lifting plate (203c) and driven to be telescopic and extended by a telescopic cylinder (203d), and a connecting frame (203f) connected to the telescopic plate (203e), wherein a plurality of push plates (203g) are connected to the connecting frame (203f), and the push plates (203g) are staggered with the support blocks (102).

6. The knurling processing device for an automobile heat shield according to claim 1, wherein: The positioning component (7) includes a positioning plate (702) driven by a pushing cylinder (701), and the positioning plate (702) is slidably arranged at one end of the positioning groove (103).

7. The knurling processing device for an automobile heat shield according to claim 1, characterized in that: The edge pressing component (301) includes a U-shaped pressing frame (301c) installed on an edge pressing bracket (301a) and driven to lift by a downward pressing cylinder (301b), and the punching components (302) are respectively arranged on both sides inside the U-shaped pressing frame (301c).

8. An embossing processing device for an automobile heat shield according to claim 7, characterized in that: The punching component (302) includes a punching plate (302b) installed inside the U-shaped pressing frame (301c) and driven to lift by a punching cylinder (302a), and a plurality of punching heads (302c) connected to the punching plate (302b). A punching hole (104) corresponding to and cooperating with the plurality of punching heads (302c) one by one is arranged at the bottom of the positioning groove (103).

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