Elastic fixing device for feeder of chip mounter

Abstract

The utility model relates to an elastic fixing device for a feeder of a chip mounter, which is applied to the field of small and medium-sized chip mounters. The device comprises an elastic component, the elastic component is arranged on the skip car bottom plate, and the elastic component is arranged below the feeder and used for abutting against the feeder. The jacking groove is formed below the feeder, and the position of the jacking groove corresponds to the position of the elastic component; the positioning block is arranged below the feeder and located behind the abutting groove, the positioning block is clamped on the skip car bottom plate, and the feeding device has the advantages of being reasonable in structural design, convenient and fast to mount and dismount, rapid and convenient in material belt replacement, firm in fixation, good in stability, accurate in positioning, high in mounting precision and low in cost.

Description

Technical Field

[0001] The utility model relates to an elastic fixing device for a feeder of a chip mounter, which is applied in the field of small and medium-sized chip mounters and is used for fixing the feeder, and is particularly applied in the field of desktop chip mounters. Background Art

[0002] In existing small and medium-sized SMT machines, the feeder for placing the material belt is often installed on the bottom plate of the material cart and fixed with the electrical connection board. As a very important and largest component of the SMT machine, the stability and convenience of the feeder directly determine the stability and convenience of the entire machine. The fixed installation of the feeder mainly depends on the following performances: 1. Ease of installation; 2. Installation stability; 3. Position accuracy after installation; 4. Feeding speed.

[0003] There are several ways to install feeders currently used on the market:

[0004] The first method is to use the two positioning pins at the front end of the feeder to cooperate with the two positioning holes on the feeder seat, and the long strip guide strip at the lower end of the feeder to cooperate with the guide groove on the feeder seat to achieve the up, down, left, and right positioning of the feeder, and finally use the spring pin on the feeder to fix the feeder on the feeder seat to achieve the front and back positioning of the feeder.

[0005] Advantages: Accurate positioning

[0006] Disadvantages: Using the positioning groove and the positioning pin to position the feeder at the same time requires high processing technology and high processing costs. If there is a slight deformation of the matching parts, the feeder cannot be installed, so the cost is also relatively high. On the other hand, it is easy to misalign during installation, and the speed and convenience of installation are not high.

[0007] The second method uses the two positioning pins under the feeder and the positioning holes on the feeder seat to achieve front, back, left, and right positioning, and finally uses a connecting rod rotation mechanism at the front end to press the feeder onto the feeder base.

[0008] Advantages: Easy to install and meets the current requirements for feeder positioning accuracy.

[0009] Disadvantages: Since the connecting rod mechanism spans from the rear end to the front end, it will occupy a lot of space structure, so it is not applicable to electric feeders. In addition, the connecting rod mechanism increases the complexity of the feeder and increases the cost of the feeder. At the same time, the increased complexity of the structure also increases the instability of the entire structure and the difficulty of maintenance and replacement. Summary of the invention

[0010] The technical problem to be solved by the utility model is to provide an elastic fixing device for a feeder of a placement machine which has reasonable structural design, convenient installation and disassembly, quick and convenient material belt replacement, reliable fixation, good stability, accurate positioning, high installation precision and low cost.

[0011] The technical solution adopted by the utility model to solve the above technical problems is an elastic fixing device of the feeder of the placement machine, which is used to fix the feeder to the electrical connection plate and the bottom plate of the material cart. Its structural characteristics are: it includes the following components:

[0012] A. An elastic component, which is arranged on the bottom plate of the material cart and below the feeder to support the feeder;

[0013] B. A supporting groove, which is arranged below the flyer and is located at the same position as the elastic component.

[0014] corresponding to the position;

[0015] C. A positioning block, wherein the positioning block is arranged below the feeder and behind the top supporting groove, and the positioning block is clamped on the bottom plate of the material cart.

[0016] The design of the elastic component can provide accurate positioning during installation, and can also provide a certain amount of damping during installation to ensure a good feel. After installation, it can support the feeder in time to increase firmness.

[0017] The top groove cooperates with the elastic component, which can accurately position the bracket and avoid excessive damping, making installation smooth and easy. After installation, the cooperation between the two can ensure stable installation and prevent it from falling out.

[0018] Preferably, a card slot is provided on the bottom plate of the material cart described in the utility model at a position corresponding to the positioning hole, and the card slot matches the positioning block.

[0019] Preferably, raised mating surfaces are provided on both sides of the positioning block of the utility model. When the feeder is installed on the bottom plate of the material cart, the front end of the mating surface is flush with the lower edge of the bottom plate of the material cart, and the rear end of the mating surface is higher than the lower edge of the bottom plate of the material cart.

[0020] Preferably, the mating surface described in the present invention is divided into a first mating surface and a second mating surface which are symmetrical to each other, and the included angle between the first mating surface and the second mating surface is an obtuse angle.

[0021] Preferably, the angle between the first mating surface and the second mating surface of the utility model is 135°.

[0022] Preferably, the angles between the contact surfaces of the mortise and tenon structures of the feeder and the bottom plate of the trolley and the first mating surface and the second mating surface of the utility model are acute angles.

[0023] Preferably, the elastic component described in the utility model is an elastic steel ball.

[0024] Preferably, the supporting groove described in the utility model is a trapezoidal groove.

[0025] Preferably, the feeder described in the utility model is provided with a positioning pin, and the electrical connection plate is provided with a positioning pin hole, and the positioning pin and the positioning pin hole match each other.

[0026] Preferably, the mutually matching positioning pins and positioning pin holes described in the present invention are two pairs.

[0027] Compared with the prior art, the utility model has the following advantages and effects:

[0028] 1. Since an elastic component is set on the bottom plate of the material cart at the position where the feeder cooperates, it can provide accurate positioning during installation, and on the other hand, it can provide a certain damping during installation to ensure the hand feel. After installation, it can support the feeder in time to increase firmness.

[0029] 2. Due to the trapezoidal groove, the trapezoidal groove cooperates with the elastic component, which can accurately position the part and avoid excessive damping, making installation smooth and easy. After installation, the cooperation between the two can ensure stable installation and prevent it from falling out.

[0030] 3. Furthermore, the combination of the trapezoidal groove and the elastic component, plus the precisely positioned positioning pins and positioning pin holes, can not only ensure the installation accuracy, but also achieve fast and convenient installation, and at the same time ensure the stability after installation.

[0031] 4. The setting of positioning block and card slot further improves the convenience and accuracy of inserting feeder, making installation and plugging faster and smoother.

[0032] 5. The setting of the matching surface allows the positioning block to play a better role and further enhances the stability of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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 based on these drawings without paying creative labor.

[0034] Figure 1 The utility model is a side structural schematic diagram of a feeder with a fixing device installed.

[0035] Figure 2 It is a structural schematic diagram of the cooperation between the feeder, the electrical connection plate and the bottom plate of the material cart according to the utility model.

[0036] Figure 3This is a structural schematic diagram from another angle showing the cooperation between the feeder, the electrical connection plate and the bottom plate of the material cart according to the utility model.

[0037] Figure 4 The utility model is a three-dimensional structural schematic diagram of a feeder with a fixing device installed.

[0038] Explanation of reference numerals: electrical connection plate 1, material cart bottom plate 2, feeder 3, elastic steel ball 4, probe 5, positioning pin 6, trapezoidal groove 7, positioning block 8, first mating surface 9, second mating surface 10, slot 11, positioning pin hole 12. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below in conjunction with the embodiments. The following embodiments are intended to explain the present invention but the present invention is not limited to the following embodiments.

[0040] Embodiment 1:

[0041] like Figures 1 to 4 As shown, the utility model describes an elastic fixing device for a feeder of a chip placement machine. The elastic fixing device for the feeder of a chip placement machine is used for connecting and fixing the feeder 3 with the electrical connection board 1 of the chip placement machine and the bottom plate 2 of the material cart. A part of the structure is arranged on the feeder 3, and the other part of the structure is arranged on the electrical connection board 1 and the bottom plate 2 of the material cart. It is mainly composed of an elastic steel ball 4, a positioning pin 6, a trapezoidal groove 7, a positioning block 8, a card slot 11, and a positioning pin hole 12.

[0042] Among them, the positioning pin 6, the trapezoidal groove 7, and the positioning block 8 are installed on the flyer 3. The positioning pin 6 is arranged in front of the flyer 3, and is usually composed of two, which are arranged above and below the probe 5 of the flyer 3. The trapezoidal groove 7 is arranged below the flyer 3, and its size and position are matched with the elastic steel ball 4. The positioning block 8 is also arranged below the flyer 3, behind the trapezoidal groove 7, and its size and position are matched with the card slot 11.

[0043] In addition, the elastic steel ball 4 and the slot 11 are installed on the bottom plate 2 of the material cart. There are multiple slots 11, which are arranged on the outer edge of the bottom plate 2 of the material cart, and the number and spacing are set according to the number and width of the flyers 3. There are also multiple elastic steel balls 4, and each elastic steel ball 4 is arranged in front of the corresponding slot 11. Similarly, the number of positioning pin holes 12 is also consistent with the slot 11, and they are arranged on the electrical connection board 1 at the corresponding position. The positioning pin 6 on the development 3 corresponds to the position of the positioning pin hole 12.

[0044] During the installation process, the positioning installation of the flyer is realized by the positioning pin 6 on the flyer 3 and the positioning surface on the flyer 3. During the installation, the elastic steel ball 4 on the bottom plate 2 of the material cart is inserted into the trapezoidal groove 7 of the flyer 3 due to the successful installation of the positioning pin 6 of the flyer 3, which has a role in limiting the forward and backward movement of the flyer 3. The flyer 3 and the bottom plate 2 of the material cart cooperate with each other through the matching surfaces of the mortise and tenon structure to further strengthen the fixation of the front and rear position of the flyer base so that it is not easy to shake or be taken down by mistake. The first matching surface 9 and the second matching surface 10 on the stepping flyer 3 are designed to be an obtuse angle (135°), which is convenient for the installation of the flyer 3 on the bottom plate 2 of the material cart. In addition, the angle between the matching surfaces of the mortise and tenon structure of the flyer 3 and the bottom plate 2 of the material cart and the first matching surface 9 on the flyer 3 is an acute angle, which further strengthens the stability of the flyer 3 and facilitates the removal of the flyer 3. When the flyer 3 is to be removed, it is only necessary to hold the handle of the flyer 3 and press downward. At this time, the elastic steel ball 4 is deformed and compressed due to the pressure, so that the flyer 3 can move backward, and under the downward pressure, the mortise and tenon structure matching surfaces of the flyer 3 and the bottom plate 2 of the material cart are separated, making it easier to remove the flyer 3.

[0045] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different. All equivalent or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the protection scope of the utility model patent. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. An elastic fixing device for a feeder of a placement machine, used to fix the feeder to an electrical connection plate and a bottom plate of a feeder, characterized in that: Includes the following components: A. An elastic component, which is arranged on the bottom plate of the material cart and below the feeder to support the feeder; B. a supporting groove, which is arranged below the flyer and has a position corresponding to that of the elastic component; C. A positioning block, which is arranged below the flyer and behind the top groove. The positioning block is clamped on the bottom plate of the material cart.

2. The elastic fixing device of the feeder of the placement machine according to claim 1, characterized in that: A slot is provided on the bottom plate of the material cart at a position corresponding to the positioning hole on the feeder seat, and the slot matches the positioning block.

3. The elastic fixing device of the feeder of the placement machine according to claim 1, characterized in that: Raised matching surfaces are provided on both sides of the positioning block. When the feeder is installed on the bottom plate of the material cart, the front end of the matching surface is flush with the lower edge of the bottom plate of the material cart, and the rear end of the matching surface is higher than the lower edge of the bottom plate of the material cart.

4. The elastic fixing device of the feeder of the placement machine according to claim 3, characterized in that: The matching surface is divided into a first matching surface and a second matching surface which are symmetrical to each other, and the included angle between the first matching surface and the second matching surface is an obtuse angle.

5. The elastic fixing device of the feeder of the placement machine according to claim 4, characterized in that: The included angle between the first mating surface and the second mating surface is 135°.

6. The elastic fixing device of the feeder of the placement machine according to claim 4, characterized in that: The included angles between the contact surfaces of the mortise and tenon structures of the feeder and the bottom plate of the trolley and the first matching surface and the second matching surface are acute angles.

7. The elastic fixing device of the feeder of the chip mounter according to claim 1, 2, 3, 4, 5 or 6, characterized in that: The elastic component is an elastic steel ball.

8. The elastic fixing device of the feeder of the placement machine according to claim 1, 2, 3, 4, 5 or 6, characterized in that: The supporting groove is a trapezoidal groove.

9. The elastic fixing device of the feeder of the placement machine according to claim 1, 2, 3, 4, 5 or 6, characterized in that: The feeder is provided with a positioning pin, and the electrical connection plate is provided with a positioning pin hole, and the positioning pin and the positioning pin hole match each other.

10. The elastic fixing device of the feeder of the placement machine according to claim 9, characterized in that: There are two pairs of mutually matching positioning pins and positioning pin holes.

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