Film pasting tool clamp and film pasting equipment

Abstract

The invention discloses a film pasting tool clamp and film pasting device.The film pasting tool clamp comprises a clamping device, the clamping device comprises at least two clamping pieces and a driving mechanism, the driving mechanism is in transmission connection with the clamping pieces, the inner walls of the clamping pieces are used for abutting against the side walls of concave workpieces, and the inner walls of the clamping pieces are used for abutting against the side walls of the concave workpieces; the driving mechanism can drive the clamping pieces to clamp or release the concave surface workpiece, the top face of each clamping piece is provided with a guide face, the guide faces are used for extending in the circumferential direction of the concave surface workpiece, each guide face comprises a first end close to the concave surface workpiece and a second end away from the concave surface workpiece, and the second ends are higher than the first ends. The first end is used for abutting against the edge of the top face of the concave surface workpiece so that the film material can be smoothly transited to the guide face from the edge of the concave surface workpiece in the film pasting process and continue to extend upwards along the guide face, the film material pasted to the position close to the edge of the concave surface workpiece is not prone to appearance quality problems, and the film pasting quality of the concave surface workpiece is improved.

Description

Technical Field

[0001] The invention relates to the technical field of film pasting on curved surface workpieces, and in particular to a film pasting fixture and film pasting equipment. Background Art

[0002] Curved surface lamination is one of the core processes of the Pancake solution. The fixtures used in curved surface lamination are closely related to the appearance of the curved surface fixtures after the film material is laminated. For concave workpiece lamination, there is currently no mature concave lamination process in the industry. If traditional fixtures are used to clamp the concave workpiece before laminating it, the edge film of the concave workpiece after lamination is prone to wrinkles, affecting the appearance quality of the product.

[0003] In view of this, it is necessary to provide a new film pasting fixture and film pasting equipment to solve or at least alleviate the above technical defects. Summary of the invention

[0004] The main purpose of the present invention is to provide a film pasting tooling fixture and film pasting equipment, aiming to solve the technical problem that the existing tooling fixture is easy to cause the edge film material of the concave workpiece after the film pasting to have poor appearance.

[0005] In order to achieve the above object, the present invention provides a film sticking fixture, which is used to clamp a concave workpiece, and the film sticking fixture comprises:

[0006] A clamping device, the clamping device includes at least two clamping members and a driving mechanism, the driving mechanism is drivingly connected to each of the clamping members, the inner wall of the clamping member is used to abut against the side wall of the concave workpiece, so that the driving mechanism can drive each of the clamping members to clamp or release the concave workpiece, the top surface of each of the clamping members is provided with a guide surface, the guide surface is used to extend along the circumference of the concave workpiece, the guide surface includes a first end arranged close to the concave workpiece and a second end arranged away from the concave workpiece, the second end is arranged higher than the first end, and the first end is used to abut against the edge of the top surface of the concave workpiece, so that the film material can smoothly transition from the edge of the concave workpiece to the guide surface during the film pasting process.

[0007] In one embodiment, the guide surface is an inclined surface, the second end is inclined toward the first end, and the guide surface is used to support the film material.

[0008] In one embodiment, the driving mechanism includes a plurality of driving components, the number of the driving components is the same as that of the clamping members, and they are arranged in one-to-one correspondence. The driving components are in transmission connection with the clamping members, so that the driving components can drive the clamping members to approach or move away from the concave workpiece, so that the driving mechanism can drive each clamping member to clamp or release the concave workpiece.

[0009] In one embodiment, the film pasting jig further includes a mounting seat, and each clamping member is slidably matched with the mounting seat. The driving component is used to drive the clamping member to reciprocate relative to the mounting seat, so that the clamping member approaches or moves away from the concave workpiece.

[0010] In one embodiment, the driving component includes a driving member and a transmission member in transmission connection. The transmission member is slidably matched with the mounting seat, so that the driving member can drive the transmission member to reciprocate relative to the mounting seat. The transmission member is also in transmission connection with the clamping member, so that the driving member can drive the clamping member to approach or move away from the concave workpiece through the transmission member.

[0011] In one embodiment, the transmission member includes a sliding portion and a guiding portion connected to each other. The sliding portion is slidably matched with the mounting seat. A guiding groove is formed on one side of the clamping member facing the guiding portion. The guiding portion is located in the guiding groove and is slidably matched with the guiding groove. The driving member is in transmission connection with the sliding portion. The driving member is used to drive the guiding portion to reciprocate in the guiding groove through the sliding portion, so that the guiding portion can drive the clamping member to approach or move away from the concave workpiece under the guidance of the guiding groove.

[0012] In one embodiment, the driving member includes a driving body and an elastic reset member. The driving body is in transmission connection with the transmission member. Two ends of the elastic reset member are respectively connected to the mounting seat and the transmission member. The transmission member includes a starting position and a clamping position. When the transmission member is at the starting position, the clamping member releases the concave workpiece. When the transmission member is at the clamping position, the clamping member clamps the concave workpiece. The driving body is used to drive the transmission member to move from the starting position to the clamping position, and the elastic reset member is used to drive the transmission member to move from the clamping position to the starting position.

[0013] In one embodiment, a positioning groove is formed on the top surface of the mounting seat. The depression direction of the positioning groove is arranged to be consistent with the depression direction of the concave workpiece. The positioning groove is used to accommodate at least part of the body of the concave workpiece.

[0014] In one embodiment, the end of the clamping member is used to abut against the end of the adjacent clamping member. When each clamping member clamps the concave workpiece, the ends of any two adjacent clamping members abut against each other, and any two adjacent guide surfaces are arranged in abutment with each other.

[0015] In one embodiment, the guide surface includes a surface body and a transition surface that are interconnected, and the inner wall of the clamping member is used to protrude toward the direction of the concave workpiece to form a positioning rib, and the positioning rib is used to abut against the side wall of the concave workpiece, and the top surface of the positioning rib is the transition surface, and the transition surface is used to abut against the edge of the top surface of the concave workpiece.

[0016] In one embodiment, the inner wall of the clamp is connected to the top of the guide surface, and the inner wall of the clamp is used to fit with the side wall of the concave workpiece so that the top of the guide surface can abut against the edge of the top surface of the concave workpiece.

[0017] In addition, the present invention also provides a film pasting equipment, which includes a film pasting device, a concave workpiece and the above-mentioned film pasting fixture, and the film pasting equipment is used to paste the film material on the top surface of the concave workpiece clamped by the clamping member.

[0018] In the above technical solution of the present invention, the driving mechanism drives each clamping member to clamp the concave workpiece, and the film pasting device gradually extends and pastes the film material from the center of the concave workpiece to the periphery. When the film material extends to the edge of the concave workpiece, the guide surface abuts against the edge of the top surface of the concave workpiece, and the film material will continue to extend obliquely downward, so that the film material can smoothly transition from the edge of the concave workpiece to the guide surface, and continue to extend upward along the guide surface, so that the film material pasted near the edge of the concave workpiece is not prone to appearance quality problems, thereby improving the quality of film pasting on the concave workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained by using the structures shown in these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of a film pasting fixture according to an embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a film pasting fixture from another perspective according to an embodiment of the present invention;

[0022] Figure 3Schematic top view structure diagram of a film - sticking tooling fixture according to an embodiment of the present invention;

[0023] Figure 4 is Figure 3 Schematic cross - sectional structure diagram of a partial structure at A - A;

[0024] Figure 5 Schematic structure diagram of a clamping member according to an embodiment of the present invention;

[0025] Figure 6 Schematic structure diagram of a plurality of clamping members clamping a concave workpiece according to an embodiment of the present invention;

[0026] Figure 7 Schematic partial structure diagram of a film - sticking device according to an embodiment of the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028] 1 Film sticking tooling fixture 11 Clamping device 111 Driving mechanism 1111 Driving body 1112 Elastic resetting part 1113 Transmission part 1114 Sliding part 1115 Guiding part 112 Clamping part 1121 Guiding surface 11211 First end 11212 Second end 11213 Surface body 11214 Transition surface 1122 Inner wall 1123 Outer wall 1124 Positioning rib 1125 Guiding groove 12 Mounting seat 121 Positioning groove 2 Concave workpiece 21 Top surface of concave workpiece 3 Film material

[0029] The realization of the purpose, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (such as shown in the attached Figure 4 drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0032] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features.

[0033] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The present invention provides a film pasting tooling fixture 1. As shown in Figure 1 , Figure 2 and Figure 7 , in an embodiment, the film pasting tooling fixture 1 is used to clamp a concave workpiece 2. The film pasting tooling fixture 1 includes a clamping device 11. The clamping device 11 includes at least two clamping members 112 and a driving mechanism 111. The driving mechanism 111 is in transmission connection with each clamping member 112. The inner wall 1122 of the clamping member 112 is used to abut against the side wall of the concave workpiece 2, so that the driving mechanism 111 can drive each clamping member 112 to clamp or release the concave workpiece 2. A guiding surface 1121 is provided on the top surface of each clamping member 112. The guiding surface 1121 is used to extend along the circumferential direction of the concave workpiece 2. The guiding surface 1121 includes a first end 11211 close to the concave workpiece 2 and a second end 11212 far from the concave workpiece 2. The second end 11212 is higher than the first end 11211. The first end 11211 is used to abut against the edge of the top surface 21 of the concave workpiece, so that the film material 3 can smoothly transition from the edge of the concave workpiece 2 to the guiding surface 1121 during the film pasting process.

[0035] Among them, the driving mechanism 111 drives each clamping member 112 to clamp the concave workpiece 2. The inner wall 1122 of each clamping member 112 abuts tightly against the side wall of the concave workpiece 2. The inner wall 1122 of the clamping member 112 refers to the side wall of the clamping member 112 facing the concave workpiece 2. The film pasting device gradually extends and pastes the film material 3 from the center of the concave workpiece 2 to the periphery. When the film material 3 extends to the edge of the concave workpiece 2, due to the abutment of the guiding surface 1121 and the edge of the top surface 21 of the concave workpiece, the film material 3 will continue to extend obliquely upward, so that the film material 3 can smoothly transition from the edge of the concave workpiece 2 to the guiding surface 1121. The film material 3 will continue to extend obliquely upward along the guiding surface 1121. And the guiding surface 1121 extends along the circumferential direction of the concave workpiece 2, so that the film material 3 near the edge of the concave workpiece 2 is not likely to have appearance quality problems, improving the quality of film pasting on the concave workpiece 2. It should be noted that as shown in Figure 6 , there can be multiple clamping members 112. The multiple clamping members 112 are arranged in sequence along the circumferential direction of the concave workpiece 2. The guiding surfaces 1121 of the multiple clamping members 112 can be combined to form a complete guiding surface, so as to better guide the film material 3 and reduce the phenomenon of appearance quality of the film material 3 near the edge of the concave workpiece 2. It should also be noted that the axial direction of the concave workpiece 2 is the up and down direction as shown in Figure 1 . The concave workpiece 2 is recessed downward, and the second end 11212 is located obliquely above the first end 11211.

[0036] According to an embodiment of the present invention, the driving mechanism 111 includes a driving component, a mounting table, a connecting wire, and a return spring. At least two clamping members 112 are all slidably engaged with the mounting table. The clamping member 112 includes a clamping station and an initial station. When the clamping member 112 is located at the clamping station, the clamping member 112 clamps the concave workpiece 2. When the clamping member 112 is located at the initial station, the clamping member 112 releases the concave workpiece 2. The number of return springs is the same as that of the clamping members 112 and they are arranged in one-to-one correspondence. One end of the return spring is connected to the clamping member 112, and the other end of the return spring is connected to the mounting table. The return spring is used to drive the clamping member 112 to move from the clamping station to the initial station. The number of connecting wires is the same as that of the clamping members 112 and they are arranged in one-to-one correspondence. One end of the connecting wire is connected to the clamping member 112, and the other end of the connecting wire is connected to the telescopic shaft of the driving component. When the telescopic shaft of the driving component contracts downward, the telescopic shaft drives the clamping member 112 to move from the initial station to the clamping station through the connecting wire, and the return spring is compressed under force. When the telescopic shaft of the driving component extends upward, the clamping member 112 moves from the clamping station to the initial station under the elastic force of the return spring, so as to realize that one driving component can drive at least two clamping members 112 to clamp or release the concave workpiece 2.

[0037] As Figure 1 , Figure 3 , Figure 4 and Figure 7 shown, in an embodiment, the guiding surface 1121 is an inclined surface, and the second end 11212 is inclined towards the first end 11211. The guiding surface 1121 is used to support the film material 3. Taking Figure 4 as an example, when the film material 3 approaches the guiding surface 1121, it extends from right to left and smoothly transitions from the edge of the concave workpiece 2 to the first end 11211. Since the second end 11212 is located above the left of the first end 11211, the film material 3 can continue to extend upward to the left after passing through the first end 11211, thereby reducing the phenomenon of appearance quality problems of the film material 3 near the edge of the concave workpiece 2.

[0038] Among them, in one embodiment, the guiding surface 1121 includes a surface body 11213 and a transition surface 11214 that are connected to each other. The inner wall 1122 of the clamping member 112 is used to protrude towards the direction where the concave workpiece 2 is located to form a positioning rib 1124. The positioning rib 1124 is used to abut against the side wall of the concave workpiece 2. The top surface of the positioning rib 1124 is the transition surface 11214, and the transition surface 11214 is used to abut against the edge of the top surface 21 of the concave workpiece. When it is necessary to clamp the concave workpiece 2, the driving mechanism 111 drives the clamping member 112 to move towards the direction close to the concave workpiece 2, so that the positioning rib 1124 abuts tightly against the side wall of the concave workpiece 2. Since the positioning rib 1124 is formed by the inner wall 1122 of the clamping member 112 protruding towards the direction where the concave workpiece 2 is located, when the positioning rib 1124 abuts tightly against the side wall of the concave workpiece 2, a gap is formed between the inner wall 1122 of the clamping member 112 without the positioning rib 1124 and the side wall of the concave workpiece 2. When the film material 3 extends to the edge of the concave workpiece 2, the film material 3 continues to extend, and part of the film material 3 will smoothly transition to the surface body 11213 under the guidance of the transition surface 11214, and the rest of the film material 3 will first pass through the gap. Since the outwardly extending part of the film material 3 has been supported by the transition surface 11214, this part of the film material 3 can also smoothly pass through the gap and contact the guiding surface 1121, and continue to extend under the guidance of the guiding surface 1121, so that the film material 3 attached near the edge of the concave workpiece 2 is not likely to have appearance quality problems.

[0039] Moreover, in one embodiment, the inner wall 1122 of the clamping member 112 is connected to the top of the guiding surface 1121. The inner wall 1122 of the clamping member 112 is used to fit with the side wall of the concave workpiece 2, so that the top of the guiding surface 1121 can abut against the edge of the top surface 21 of the concave workpiece. When it is necessary to clamp the concave workpiece 2, the driving mechanism 111 drives the clamping member 112 to move towards the direction close to the concave workpiece 2, so that the inner wall 1122 of the clamping member 112 fits with the side wall of the concave workpiece 2 and abuts tightly against the side wall of the concave workpiece 2. Since the inner wall 1122 of the clamping member 112 is connected to the top of the guiding surface 1121, and the guiding surface 1121 extends along the circumferential direction of the concave workpiece 2, when the film material 3 extends to the edge of the concave workpiece 2, the film material 3 continues to extend, and the outwardly extending film material 3 will all contact the guiding surface 1121 and continue to extend obliquely downward under the guidance of the guiding surface 1121, so that the film material 3 attached near the edge of the concave workpiece 2 is not likely to have appearance quality problems.

[0040] Such as Figures 1 to 4As shown, in one embodiment, the driving mechanism 111 includes a plurality of driving components. The number of driving components is the same as that of the clamping members 112 and they are arranged in one-to-one correspondence. The driving components are in transmission connection with the clamping members 112 so that the driving components can drive the clamping members 112 to approach or move away from the concave workpiece 2, enabling the driving mechanism 111 to drive each clamping member 112 to clamp or release the concave workpiece 2. Among them, the driving components and the clamping members 112 are arranged in one-to-one correspondence so that the movement state of each clamping member 112 is independently controlled by a corresponding driving component.

[0041] Among them, in one embodiment, the film pasting jig 1 further includes a mounting base 12. Each clamping member 112 is slidably engaged with the mounting base 12. The driving component is used to drive the clamping member 112 to reciprocally slide relative to the mounting base 12 so that the clamping member 112 can approach or move away from the concave workpiece 2. The clamping member 112 is slidably engaged with the mounting base 12 so that the clamping member 112 can move along a preset direction. It should be noted that the clamping member 112 is provided with a chute, and the mounting base 12 is provided with a slide rail that slidably engages with the chute.

[0042] Moreover, in one embodiment, the driving component includes a driving member and a transmission member 1113 that are in transmission connection. The transmission member 1113 is slidably engaged with the mounting base 12 so that the driving member can drive the transmission member 1113 to reciprocally slide relative to the mounting base 12. The transmission member 1113 is also in transmission connection with the clamping member 112 so that the driving member can drive the clamping member 112 to approach or move away from the concave workpiece 2 through the transmission member 1113. The driving member drives the transmission member 1113 to slide relative to the mounting base 12, thereby driving the transmission member 1113 to move, and then driving the clamping member 112 to move through the transmission member 1113, so that the clamping member 112 can clamp or release the concave workpiece 2.

[0043] According to an embodiment of the present invention, the transmission member 1113 is a rack. The driving component further includes a transmission part. The transmission part includes a rotating rod and a first gear and a second gear arranged in sequence along the extension direction of the rotating rod. The rotating rod is vertically arranged and rotatably connected to the mounting base 12. The first gear meshes with the rack. A plurality of meshing teeth are arranged in sequence along the movement direction of the clamping member 112. The second gear meshes with the meshing teeth so that the driving member drives the rack to move. The rack drives the second gear to rotate through the first gear and the rotating rod. Since the second gear meshes with the meshing teeth, the rotating second gear can drive the clamping member 112 to move, enabling the driving member to drive the clamping member 112 to approach or move away from the concave workpiece 2.

[0044] Further, in one embodiment, the transmission member 1113 includes a sliding portion 1114 and a guide portion 1115 connected to each other, the sliding portion 1114 is slidably matched with the mounting seat 12, a guide groove 1125 is provided on the side of the clamping member 112 facing the guide portion 1115, the guide portion 1115 is located in the guide groove 1125 and slidably matched with the guide groove 1125, the driving member is transmission-connected with the sliding portion 1114, and the driving member is used to drive the guide portion 1115 to slide back and forth in the guide groove 1125 through the sliding portion 1114, so that the guide portion 1115 can drive the clamping member 112 to approach or move away from the concave workpiece 2 under the guidance of the guide groove 1125. The driving member drives the guide portion 1115 to slide in the guide groove 1125 through the sliding portion 1114, and the guide portion 1115 can drive the clamping member 112 to approach or move away from the concave workpiece 2 under the guidance of the guide groove 1125.

[0045] Furthermore, in one embodiment, the driving member includes a driving body 1111 and an elastic reset member 1112, the driving body 1111 is connected to the transmission member 1113 in transmission connection, the two ends of the elastic reset member 1112 are respectively connected to the mounting seat 12 and the transmission member 1113, the transmission member 1113 includes a starting position and a clamping position, when the transmission member 1113 is in the starting position, the clamping member 112 releases the concave workpiece 2, when the transmission member 1113 is in the clamping position, the clamping member 112 clamps the concave workpiece 2, the driving body 1111 is used to drive the transmission member 1113 to move from the starting position to the clamping position, and the elastic reset member 1112 is used to drive the transmission member 1113 to move from the clamping position to the starting position. The driving body 1111 may be a cylinder or a telescopic ejector pin, etc. When the concave workpiece 2 is placed in the discharge area provided on the top of the mounting seat 12, the telescopic shaft of the driving body 1111 extends to drive the sliding part 1114 to slide relative to the mounting seat 12. At this time, the elastic reset member 1112 is stretched, and the sliding part 1114 drives the guide part 1115 to slide in the guide groove 1125, thereby driving the clamping member 112 to move toward the concave workpiece 2 until it is pressed against the side wall of the concave workpiece 2. When multiple clamping members 112 complete the pressing process together, the clamping of the concave workpiece 2 is completed; when the concave workpiece 2 needs to be released, the telescopic shaft of the driving body 1111 is retracted, and the sliding part 1114 is reset under the elastic force of the elastic reset member 1112, and the clamping member 112 is driven to reset through the transmission part, thereby releasing the clamping of the concave workpiece 2. The elastic reset member 1112 may be a spring.

[0046] like Figure 1 and Figure 4As shown, in one embodiment, a positioning groove 121 is provided on the top surface of the mounting seat 12, and the concave direction of the positioning groove 121 is used to be arranged in a consistent manner with the concave direction of the concave workpiece 2, and the positioning groove 121 is used to accommodate at least part of the body of the concave workpiece 2. By providing the positioning groove 121 on the top surface of the mounting seat 12, not only can the concave workpiece 2 be supported, but also the concave workpiece 2 can be positioned so that the clamping member 112 clamps the concave workpiece 2. It should be noted that the curvature of the groove wall of the positioning groove 121 is adapted to the curvature of the concave workpiece 2, thereby enhancing the accuracy of the positioning of the concave workpiece 2 by the positioning groove 121.

[0047] In addition, in one embodiment, the end of the clamping member 112 is used to abut against the end of an adjacent clamping member 112. When each clamping member 112 clamps the concave workpiece 2, the ends of any two adjacent clamping members 112 abut against each other, and any two adjacent guide surfaces 1121 are butted against each other. The ends of any two adjacent clamping members 112 abut against each other, so that the guide surface 1121 can be arranged around the concave workpiece 2, thereby better preventing quality problems from occurring when the concave workpiece 2 is filmed.

[0048] In addition, if Figures 1 to 7 As shown, the present invention further provides a film pasting device, which includes a film pasting device, a concave workpiece 2 and the above-mentioned film pasting fixture 1, and the film pasting device is used to paste the film material 3 on the top surface 21 of the concave workpiece clamped by the clamping member 112. Since the film pasting device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0049] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A film laminating fixture, the film laminating fixture is used to clamp a concave workpiece, It is characterized in that include: A clamping device, the clamping device includes at least two clamping members and a driving mechanism, the driving mechanism is drivingly connected to each of the clamping members, the inner wall of the clamping member is used to abut against the side wall of the concave workpiece, so that the driving mechanism can drive each of the clamping members to clamp or release the concave workpiece, the top surface of each of the clamping members is provided with a guide surface, the guide surface is used to extend along the circumference of the concave workpiece, the guide surface includes a first end arranged close to the concave workpiece and a second end arranged away from the concave workpiece, the second end is arranged higher than the first end, and the first end is used to abut against the edge of the top surface of the concave workpiece, so that the film material can smoothly transition from the edge of the concave workpiece to the guide surface during the film pasting process.

2. The film pasting fixture according to claim 1, It is characterized in that The guide surface is an inclined surface, the second end is inclined toward the first end, and the guide surface is used to support the film material.

3. The film pasting fixture according to claim 1, It is characterized in that The driving mechanism includes a plurality of driving components, the number of the driving components is consistent with the number of the clamping members, and they are arranged in a one-to-one correspondence. The driving components are transmission-connected with the clamping members so that the driving components can drive the clamping members to approach or move away from the concave workpiece, so that the driving mechanism can drive each of the clamping members to clamp or release the concave workpiece.

4. The film pasting fixture according to claim 3, It is characterized in that The film pasting fixture also includes a mounting seat, each of the clamping members is slidably matched with the mounting seat, and the driving assembly is used to drive the clamping members to slide reciprocatingly relative to the mounting seat so that the clamping members are close to or away from the concave workpiece.

5. The film pasting fixture according to claim 4, It is characterized in that The driving assembly includes a driving member and a transmission member that are transmission-connected. The transmission member slidably cooperates with the mounting seat so that the driving member can drive the transmission member to slide reciprocatingly relative to the mounting seat. The transmission member is also transmission-connected to the clamping member so that the driving member can drive the clamping member to approach or move away from the concave workpiece through the transmission member.

6. The film pasting fixture according to claim 5, It is characterized in that The transmission member includes a sliding portion and a guiding portion that are connected to each other, the sliding portion is slidably matched with the mounting seat, a guide groove is provided on the side of the clamping member facing the guide portion, the guide portion is located in the guide groove and slidably matched with the guide groove, the driving member is transmission-connected with the sliding portion, and the driving member is used to drive the guiding portion to slide back and forth in the guide groove through the sliding portion, so that the guiding portion can drive the clamping member to approach or move away from the concave workpiece under the guidance of the guide groove.

7. The film pasting fixture according to claim 5, It is characterized in that The driving member includes a driving body and an elastic reset member. The driving body is in transmission connection with the transmission member. Two ends of the elastic reset member are respectively connected to the mounting seat and the transmission member. The transmission member includes a starting position and a clamping position. When the transmission member is at the starting position, the clamping member releases the concave workpiece. When the transmission member is at the clamping position, the clamping member clamps the concave workpiece. The driving body is used to drive the transmission member to move from the starting position to the clamping position, and the elastic reset member is used to drive the transmission member to move from the clamping position to the starting position.

8. The film pasting tooling fixture according to claim 4, wherein, a positioning groove is arranged on the top surface of the mounting seat. The depression direction of the positioning groove is arranged to be consistent with the depression direction of the concave workpiece. The positioning groove is used to accommodate at least part of the body of the concave workpiece.

9. The film pasting tooling fixture according to any one of claims 1 to 8, wherein, the end of the clamping member is used to abut against the end of the adjacent clamping member. When each clamping member clamps the concave workpiece, the ends of any two adjacent clamping members abut against each other, and the guiding surfaces of any two adjacent clamping members are butted.

10. The film pasting tooling fixture according to any one of claims 1 to 8, wherein, the guiding surface includes a surface body and a transition surface connected to each other. The inner wall of the clamping member is used to bulge towards the direction where the concave workpiece is located to form a positioning rib. The positioning rib is used to abut against the side wall of the concave workpiece. The top surface of the positioning rib is the transition surface, and the transition surface is used to abut against the edge of the top surface of the concave workpiece.

11. The film pasting tooling fixture according to any one of claims 1 to 8, wherein, the inner wall of the clamping member is connected to the top of the guiding surface. The inner wall of the clamping member is used to fit with the side wall of the concave workpiece, so that the top of the guiding surface can abut against the edge of the top surface of the concave workpiece.

12. A film pasting device, wherein, the film pasting device includes a film pasting device, a concave workpiece and the film pasting tooling fixture according to any one of claims 1 to 11. The film pasting device is used to paste a film on the top surface of the concave workpiece clamped by the clamping member.

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